Quiz
CCNA 1 Old Final exam
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Perguntas do quiz (154)
1What is a function of the data link layer?
- Aprovides the formatting of data
- Bprovides for the exchange of data over a common local media
- Cprovides end-to-end delivery of data between hosts
- Dprovides delivery of data between two applications
2Which communication tool allows real-time collaboration?
- Awiki
- Be-mail
- Cweblog
- Dinstant messaging
3A host is accessing a Web server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)
- Aregenerating data signals
- Bacting as a client or a server
- Cproviding a channel over which messages travel
- Dapplying security settings to control the flow of data
- Enotifying other devices when errors occur
- Fserving as the source or destination of the messages
4Refer to the exhibit. From which location did this router load the IOS?
- Aflash memory
- BNVRAM?
- CRAM
- DROM
- EA TFTP server
5Refer to the exhibit. Which action will be successful?
- APC1 can send a ping to 192.168.1.1
- BPC1 can send a ping to 192.168.1.254
- CPC2 can send a ping to 192.168.1.1
- DPC2 can send a ping to 192.168.1.254
6Fill in the blank.
Port numbers ranging from 0 to 1023 are considered to be _______ ports.- AWELL KNOWN
- B____
7Fill in the blank.
ISOC, IANA, EIA, and IEEE represent _______ organizations which help to promote and maintain an open Internet.- Astandards
- B______
8Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?
- AThe entire command,
configure terminal, must be
used. - BThe administrator is already
in global configuration mode. - CThe administrator must first enter privileged EXEC mode before issuing the command.
- DThe administrator must connect via the console port to access global configuration mode.
- AThe entire command,
9A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?
- ALAN
- BMAN
- CWAN
- DWLAN
10A network administrator is upgrading a small business network to give high priority to real-time applications traffic. What two types of network services is the network administrator trying to accommodate? (Choose two.)
- ASNMP
- Binstant messaging
- Cvoice
- DFTP
- Evideo
11 Which IPv4 address can be pinged to test the internal TCP/IP operation of a host?
- A0.0.0.0
- B0.0.0.1
- C127.0.0.1
- D192.168.1.1
- E255.255.255.255
12What three application layer protocols are part of the TCP/IP protocol suite?
(Choose three.)- AARP
- BDHCP
- CDNS
- DFTP
- ENAT
- FPPP
13Which two protocols function at the internet layer? (Choose two)
- AARP
- BBOOTP
- CICMP
- DIP
- EPPP
14Which publicly available resources describe protocols, processes, and technologies for the Internet but do not give implementation details?
- ARequest for Comments
- BIRTF research papers
- Cprotocol models
IEEE standards - DIEEE standards
15Which address on a PC does not change, even if the PC is moved to a different network?
- AIP address
- Bdefault gateway address
- CMAC address
- Dlogical address
16What is the protocol that is used to discover a physical address from a known logical address and what message type does it use?
- AARP, multicast
- BDNS, unicast
- CDNS, broadcast
- DARP, broadcast
- EPING, multicast
- FPING, broadcast
17What will happen if the default gateway address is incorrectly configured on a host?
- AThe host cannot communicate with other hosts in the local network.
- BThe switch will not forward packets initiated by the host.
- CThe host will have to use ARP to determine the correct address of the default gateway.
- DThe host cannot communicate with hosts in other networks.
- EA ping from the host to 127.0.0.1 would not be successful.
18What is an important function of the physical layer of the OSI model?
- AIt accepts frames from the physical media.
- BIt encapsulates upper layer data into frames.
- CIt defines the media access method performed by the hardware interface.
- DIt encodes frames into electrical, optical, or radio wave signals.
19Which two statements describe the characteristics of fiber-optic cabling? (Choose two.)
- AFiber-optic cabling does not conduct electricity.
- BFiber-optic cabling has high signal loss.
- CFiber-optic cabling is primarily used as backbone cabling.
- DMultimode fiber-optic cabling carries signals from multiple sending devices.
- EFiber-optic cabling uses LEDs for single-mode cab?les and laser technology for multimode cables.
20 What is contained in the trailer of a data-link frame?
- Aerror detection
- Blogical address
- Cphysical address
- Ddata
21Refer to the exhibit. A ping to PC3 is issued from PC0, PC1, and PC2 in this exact order. Which MAC addresses will be contained in the S1 MAC address table that is associated with the Fa0/1 port?
- Ajust PC0 and PC1 MAC addresses
- Bjust the PC0 MAC address
- CPC0, PC1, and PC2 MAC addresses
- Djust the PC1 MAC address
- Ejust the PC2 MAC address
22How does a Layer 3 switch differ from a Layer 2 switch?
- AA Layer 3 switch supports VLANs, but a Layer 2 switch does not.
- BAn IP address can be assigned to a physical port of a Layer 3 switch. However, this is not supported in Layer 2 switches.
- CA Layer 3 switch maintains an IP address table instead of a MAC address table.
- DA Layer 3 switch learns the MAC addresses that are associated with each of its ports. However, a Layer 2 switch does not.
23What is the purpose of the routing process?
- Ato encapsulate data that is used to communicate across a network
- Bto select the paths that are used to direct traffic to destination networks
- Cto convert a URL name into an IP address
- Dto provide secure Internet file transfer
- Eto forward traffic on the basis of MAC addresses
24Which technology provides a solution to IPv4 address depletion by allowing multiple devices to share one public IP address?
- AARP
- BDNS
- CNAT
- DSMB
- EDHCP
- FHTTP
25Refer to the exhibit. Consider the IP address configuration shown from PC1. What is a description of the default gateway address?
- AIt is the IP address of the Router1 interface that connects the company to the Internet.
- BIt is the IP address of the Router1 interface that connects the PC1 LAN to Router1.
- CIt is the IP address of Switch1 that connects PC1 to other devices on the same LAN.
- DIt is the IP address of the ISP network device located in the cloud.
26Which of the following are primary functions of a router? (Choose two.)
- Apacket switching*
- Bmicrosegmentation
- Cdomain name resolution
- Dpath selection
- Eflow control
27Which two statements correctly describe a router memory type and its
contents? (Choose two.)- AROM is nonvolatile and contains basic diagnostic software.
- BFLASH is nonvolatile and contains a limited portion of the IOS .
- CROM is nonvolatile and stores the running IOS.
- DRAM is volatile and stores the IP routing table.
- ENVRAM is nonvolatile and stores other system files.
28In which default order will a router search for startup configuration information?
- ANVRAM, RAM, TFTP
- BNVRAM, TFTP, setup mode
- Csetup mode, NVRAM, TFTP
- DTFTP, ROM, NVRAM
- Eflash, ROM, setup mode
29What happens when part of an Internet VoIP transmission is not delivered to the destination?
- AA delivery failure message is sent to the source host.
- BThe part of the VoIP transmission that was lost is re-sent.
- CThe entire transmission is re-sent.
- DThe transmission continues without the missing portion.
30Which three IP addresses are private ? (Choose three.)
- A10.172.168.1
- B172.32.5.2
- C192.167.10.10
- D172.20.4.4
- E192.168.5.254
- F224.6.6.6
31How many bits make up the single IPv6 hextet :10CD:?
- A4
- B8
- C16
- D32
32What is the effect of configuring the ipv6 unicast-routing command on a
router?- Ato assign the router to the all-nodes multicast group
- Bto enable the router as an IPv6 router
- Cto permit only unicast packets on the router
- Dto prevent the router from joining the all-routers multicast group
33Which group of IPv6 addresses cannot be allocated as a host source address?
- AFEC0::/10?
- BFDFF::/7?
- CFEBF::/10?
- DFF00::/8*
34What is the purpose of ICMP messages?
- Ato inform routers about network topology changes
- Bto ensure the delivery of an IP packet
- Cto provide feedback of IP packet transmissions
- Dto monitor the process of a domain name to IP address resolution
35Refer to the exhibit. A technician has configured a user workstation with the IP
address and default subnet masks that are shown. Although the user can access all local LAN resources, the user cannot access any Internet sites by using either FQDN or IP addresses. Based upon the exhibit, what could account for this failure?
- AThe DNS server addresses are incorrect.
- BThe default gateway address in incorrect.
- CThe wrong subnet mask was assigned to the workstation.
- DThe workstation is not in the same network as the DNS servers.
36A network administrator needs to monitor network traffic to and from servers in a data center. Which features of an IP addressing scheme should be applied to these devices?
- Arandom static addresses to improve security
- Baddresses from different subnets for redundancy
- Cpredictable static IP addresses for easier identification
- Ddynamic addresses to reduce the probability of duplicate addresses
37Refer to the exhibit. Which IP addressing scheme should be changed?
- ASite 1
- BSite 2
- CSite 3
- DSite 4
38Which two notations are useable nibble boundaries when subnetting in IPv6?
(Choose two.)- A/62
- B/64
- C/66
- D/68
- E/70
39A host PC has just booted and is attempting to lease an address through
DHCP. Which two messages will the client typically broadcast on the network? (Choose two.)- ADHCPDISCOVER
- BDHCPOFFER
- CDHCPREQUEST
- DDHCPACK
- EDHCPNACK
40What is the purpose of the network security accounting function?
- Ato require users to prove who they are
- Bto determine which resources a user can access
- Cto keep track of the actions of a user
- Dto provide challenge and response questions
41Refer to the exhibit. The network administrator enters these commands into the R1 router:
R1# copy running-config tftp
Address or name of remote host [ ]?
When the router prompts for an address or remote host name, what IP address should the administrator enter at the prompt?
- A192.168.9.254
- B192.168.10.1
- C192.168.10.2
- D192.168.11.252
- E192.168.11.254
42What two preconfigured settings that affect security are found on most new wireless routers? (Choose two.)
- Abroadcast SSID
- BMAC filtering enabled
- CWEP encryption enabled
- DPSK authentication required
- Edefault administrator password
43Which type of wireless security generates dynamic encryption keys each time a
client associates with an AP?- AEAP
- BPSK
- CWEP
- DWPA
44Fill in the blank.
TFTP* is a best-effort, connectionless application layer protocol that is used to transfer files.- A--------
- BTFTP
45 Which two components are necessary for a wireless client to be installed on a WLAN? (Choose two.)
- Amedia
- Bwireless NIC
- Ccustom adapter
- Dcrossover cable
- Ewireless bridge
- Fwireless client software
46Consider the following range of addresses2001:0DB8:BC15:00A0:0000:: 2001:0DB8:BC15:00A1:0000:: 2001:0DB8:BC15:00A2:0000::
...
2001:0DB8:BC15:00AF:0000::- AThe prefix-length for the range of addresses is /60* .
- B----
47A host is accessing an FTP server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)
- Aregenerating data signals
- Bacting as a client or a server
- Cproviding a channel over which messages travel
- Dapplying security settings to control the flow of data
- Enotifying other devices when errors occur
- Fserving as the source or destination of the messages
48When is a dial-up connection used to connect to an ISP?
- Awhen a cellular telephone provides the service
- Bwhen a high-speed connection is provided over a cable TV network
- Cwhen a satellite dish is used
- Dwhen a regular telephone line is used
49On a school network, students are surfing the web, searching the library database, and attending an audio conference with their sister school in Japan. If network traffic is prioritized with QoS, how will the traffic be classified from highest priority to lowest priority?
- Aaudio conference, database, HTTP
- Bdatabase, HTTP, audio conference
- Caudio conference, HTTP, database
- Ddatabase, audio conference, HTTP
50During normal operation, from which location do most Cisco routers run the IOS?
- ARAM
- Bflash
- CNVRAM
- Ddisk drive
51Which keys act as a hot key combination that is used to interrupt an IOS process?
- ACtrl-Shift-X
- BCtrl-Shift-6
- CCtrl-Z
- DCtrl-C
52Refer to the exhibit. An administrator wants to change the name of a brand new
switch, using the hostname command as shown. What prompt will display after the command is issued??
- AHR Switch(config)#?
- BSwitch(config)#?
- CHRSwitch(config)#?
- DHR(config)#?
- ESwitch#
53A technician uses the ping 127.0.0.1 command. What is the technician testing?
- Athe TCP/IP stack on a network host
- Bconnectivity between two adjacent Cisco devices
- Cconnectivity between a PC and the default gateway
- Dconnectivity between two PCs on the same network
- Ephysical connectivity of a particular PC and the network
54Which device should be used for enabling a host to communicate with another host on a different network?
- Aswitch
- Bhub
- Crouter
- Dhost
55A network technician is measuring the transfer of bits across the company backbone for a mission critical application. The technician notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)
- Athe amount of traffic that is currently crossing the network
- Bthe type of traffic that is crossing the network
- Cthe latency that is created by the number of network devices that the data is crossing
- Dthe sophistication of the encapsulation method applied to the data
- Ethe bandwidth of the WAN connection to the Internet
- Fthe reliability of the gigabit Ethernet infrastructure of the backbone
56Which characteristics describe fiber optic cable? (Choose two.)
- AIt is not affected by EMI or RFI.
- BEach pair of cables is wrapped in metallic foil.
- CIt combines the technique of cancellation, shielding and twisting to protect data.
- DIt has a maximum speed of 100 Mbps.
- EIt is the most expensive type of LAN cabling
57What are two features of a physical, star network topology? (Choose two.)
- AIt is straightforward to troubleshoot.
- BEnd devices are connected together by a bus.
- CAll end devices are connected in a chain to each other.
- DIt is easy to add and remove end devices.
- EEach end system is connected to its respective neighbor.
58 A frame is transmitted from one networking device to another. Why does the receiving device check the FCS field in the frame?
- Ato determine the physical address of the sending device
- Bto verify the network layer protocol information
- Cto compare the interface media type between the sending and receiving ends
- Dto check the frame for possible transmission errors
- Eto verify that the frame destination matches the MAC address of the receiving device
59What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?
- AIt initiates an ARP request.
- BIt broadcasts the frame out of all ports on the switch.
- CIt notifies the sending host that the frame cannot be delivered.
- DIt forwards the frame out of all ports except for the port at which the frame was received.
60Which parameter does the router use to choose the path to the destination when there are multiple routes available?
- Athe lower metric value that is associated with the destination network
- Bthe lower gateway IP address to get to the destination network
- Cthe higher metric value that is associated with the destination network
- Dthe higher gateway IP address to get to the destination network
61Which two statements describe the functions or characteristics of ROM in a router? (Choose two.)
- Astores routing tables
- Ballows software to be updated without replacing pluggable chips on the motherboard
- Cmaintains instructions for POST diagnostics
- Dholds ARP cache
- Estores bootstrap program
62Which statement describes a characteristic of the Cisco router management ports?
- AA console port is used for remote management of the router.
- BA console port is not used for packet forwarding.
- CSerial and DSL interfaces are types of management ports.
- DEach Cisco router has a LED indicator to provide information about the status of the management ports.
63What happens when part of an Internet radio transmission is not delivered to the destination?
- AA delivery failure message is sent to the source host.
- BThe part of the radio transmission that was lost is re-sent.
- CThe entire transmission is re-sent.
- DThe transmission continues without the missing portion.
64What types of addresses make up the majority of addresses within the /8 block IPv4 bit space?
- Aprivate addresses
- Bpublic addresses
- Cmulticast addresses
- Dexperimental addresses
65Refer to the exhibit. What is the maximum TTL value that is used to reach the destination www.cisco.com??
- A11
- B12
- C13
- D14
66A company has a network address of 192.168.1.64 with a subnet mask of 255.255.255.192. The company wants to create two subnetworks that would contain 10 hosts and 18 hosts respectively. Which two networks would achieve that? (Choose two.)
- A192.168.1.16/28
- B192.168.1.64/27
- C192.168.1.128/27
- D192.168.1.96/28
- E192.168.1.192/28
67 In a network that uses IPv4, what prefix would best fit a subnet containing 100
hosts?- A/23
- B/24
- C/25
- D/26
68Which protocol supports rapid delivery of streaming media?
- ATransmission Control Protocol
- BReal-Time Transport Protocol
- CSecure File Transfer Protocol
- DVideo over Internet Protocol
69Why would a network administrator use the tracert utility?
- Ato determine the active TCP connections on a PC
- Bto check information about a DNS name in the DNS server
- Cto identify where a packet was lost or delayed on a network
- Dto display the IP address, default gateway, and DNS server address for a PC
70Refer to the exhibit. What is the significance of the asterisk (*) in the exhibited output?
- AThe asterisk shows which file system was used to boot the system.
- BThe asterisk designates which file system is the default file system.
- CAn asterisk indicates that the file system is bootable.
- DAn asterisk designates that the file system has at least one file that uses that file system.
71Which WLAN security protocol generates a new dynamic key each time a client establishes a connection with the AP?
- AEAP
- BPSK
- CWEP
- DWPA
72Fill in the blank.
Point-to-point communications where both devices can transmit and receive on the medium at the same time are known as _____- Afull-duplex
- B____
73A host is accessing a Telnet server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)
- Aregenerating data signals
- Bacting as a client or a server
- Cproviding a channel over which messages travel
- Dapplying security settings to control the flow of data
- Enotifying other devices when errors occur
- Fserving as the source or destination of the messages
74Refer to the exhibit. Which area would most likely be an extranet for the company network that is shown?
- Aarea A
- Barea B
- Carea C
- Darea D
75Three office workers are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other office workers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?
- Aaudio conference, financial transactions, web page
- Bfinancial transactions, web page, audio conference
- Caudio conference, web page, financial transactions
- Dfinancial transactions, audio conference, web page
76During normal operation, from which location do most Cisco switches and routers run the IOS?
- ARAM
- Bflash
- CNVRAM
- Ddisk drive
77A network administrator is making changes to the configuration of a router.
After making the changes and verifying the results, the administrator issues the copy running-config startup-config command. What will happen after this command executes?- AThe configuration will be copied to flash.
- BThe configuration will load when the router is restarted.
- CThe new configuration file will replace the IOS file.
- DThe changes will be lost when the router restarts.
78What information does the loopback test provide?
- AThe TCP/IP stack on the device is working correctly.
- BThe device has end-to-end connectivity.
- CDHCP is working correctly.
- DThe Ethernet cable is working correctly.
- EThe device has the correct IP address on the network.
79What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field?
- AThe switch places the new CRC value in the FCS field and forwards the frame.
- BThe switch notifies the source of the bad frame.
- CThe switch drops the frame.
- DThe switch floods the frame to all ports except the port through which the frame arrived to notify the hosts of the error.
80Which destination address is used in an ARP request frame?
- A0.0.0.0
- B255.255.255.255
- CFFFF.FFFF.FFFF*
- D127.0.0.1
- E01-00-5E-00-AA-23
81What is the auto-MDIX feature on a switch?
- Athe automatic configuration of an interface for 10/100/1000 Mb/s operation
- Bthe automatic configuration of an interface for a straight-through or a crossover Ethernet cable connection
- Cthe automatic configuration of full-duplex operation over a single Ethernet copper or optical cable
- Dthe ability to turn a switch interface on or off accordingly if an active connection
is detected
82What are the two main components of Cisco Express Forwarding (CEF)?
(Choose two.)- Aadjacency tables*
- BMAC-address tables
- Crouting tables
- Dforwarding information base (FIB)
- EARP tables
83Which statement describes the sequence of processes executed by a router when it receives a packet from a host to be delivered to a host on another network?
- AIt receives the packet and forwards it directly to the destination host.
- BIt de-encapsulates the packet, selects the appropriate path, and encapsulates the packet to forward it toward the destination host*
- CIt de-encapsulates the packet and forwards it toward the destination host.
- DIt selects the path and forwards it toward the destination host.
84Refer to the exhibit. Router R1 has two interfaces that were configured with correct IP addresses and subnet masks. Why does the show ip route command output not display any information about the directly connected networks??
- AThe directly connected networks have to be created manually to be displayed in the routing table.
- BThe routing table will only display information about these networks when the router receives a packet.
- CThe no shutdown command was not issued on these interfaces.
- DThe gateway of last resort was not configured.
85What happens when part of an Internet television transmission is not delivered
to the destination?- AA delivery failure message is sent to the source host.
- BThe part of the television transmission that was lost is re-sent.
- CThe entire transmission is re-sent.
- DThe transmission continues without the missing portion.*
86Which three statements characterize the transport layer protocols? (Choose three.)
- ATCP and UDP port numbers are used by application layer protocols.
- BTCP uses port numbers to provide reliable transportation of IP packets.
- CUDP uses windowing and acknowledgments for reliable transfer of data.
- DTCP uses windowing and sequencing to provide reliable transfer of data.
- ETCP is a connection-oriented protocol. UDP is a connectionless protocol.
87Which statement is true regarding the UDP client process during a session with a server?
- ADatagrams that arrive in a different order than that in which they were sent are not placed in order.
- BA session must be established before datagrams can be exchanged.
- CA three-way handshake takes place before the transmission of data begins.
- DApplication servers have to use port numbers above 1024 in order to be UDP capable.
88Which two components are configured via software in order for a PC to participate in a network environment? (Choose two.)
- AMAC address
- BIP address
- Ckernel
- Dshell
- Esubnet mask
89Which two reasons generally make DHCP the preferred method of assigning IP addresses to hosts on large networks? (Choose two.)
- AIt eliminates most address configuration errors.
- BIt ensures that addresses are only applied to devices that require a permanent address.
- CIt guarantees that every device that needs an address will get one.
- DIt provides an address only to devices that are authorized to be connected to the network.
- EIt reduces the burden on network support staff.
90What is the subnet address for the address 2001:DB8:BC15:A:12AB::1/64?
- A2001:DB8:BC15::0
- B2001:DB8:BC15:A::0
- C2001:DB8:BC15:A:1::1
- D2001:DB8:BC15:A:12::0
91What is the purpose of the network security authentication function?
- Ato require users to prove who they are
- Bto determine which resources a user can access
- Cto keep track of the actions of a user
- Dto provide challenge and response questions
92Which type of wireless security makes use of dynamic encryption keys each time a client associates with an AP?
- AEAP
- BPSK
- CWEP
- DWPA
93Which field in an IPv4 packet header will typically stay the same during its transmission?
- APacket Length
- BDestination Address
- CFlag
- DTime-to-Live
94Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
Which IPv6 address is assigned to the Serial0/0/0 interface on RT2?- A2001:db8:abc:1::1
- B2001:db8:abc:5::1
- C2001:db8:abc:10::15
- D2001:db8:abc:5::2
95What must be configured to enable Cisco Express Forwarding (CEF) on most
Cisco devices that perform Layer 3 switching?- AManually configure next-hop Layer 2 addresses.
- BIssue the no shutdown command on routed ports.
- CCEF is enabled by default, so no configuration is necessary.
- DManually map Layer 2 addresses to Layer 3 addresses to populate the forwarding information base (FIB).
96 What is the purpose of adjacency tables as used in Cisco Express Forwarding (CEF)?
- Ato populate the forwarding information base (FIB)
- Bto maintain Layer 2 next-hop addresses
- Cto allow the separation of Layer 2 and Layer 3 decision making
- Dto update the forwarding information base (FIB)
97Which statement describes a characteristic of the network layer in the OSI
model?- AIt manages the data transport between the processes running on each host.
- BIn the encapsulation process, it adds source and destination port numbers to the IP header.
- CWhen a packet arrives at the destination host, its IP header is checked by the network layer to determine where the packet has to be routed.
- DIts protocols specify the packet structure and processing used to carry
the data from one host to another.
98 A user gets an IP address of 192.168.0.1 from the company network
administrator. A friend of the user at a different company gets the same IP address on another PC. How can two PCs use the same IP address and still reach the Internet, send and receive email, and search the web?- ABoth users must be using the same Internet Service Provider.
- BISPs use Network Address Translation to change a user IP address into an address that can be used on the Internet.
- CISPs use Domain Name Service to change a user IP address into a public IP address that can be used on the Internet.
- DBoth users must be on the same network.
99 Why does HTTP use TCP as the transport layer protocol?
- Ato ensure the fastest possible download speed
- Bbecause HTTP is a best-effort protocol
- Cbecause transmission errors can be tolerated easily
- Dbecause HTTP requires reliable delivery
100What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234?
- A2001:DB8:0:AB00::1234
- B2001:DB8:0:AB::1234
- C2001:DB8::AB00::1234
- D2001:DB8:0:AB:0:1234
101What field content is used by ICMPv6 to determine that a packet has expired?
- ATTL field
- BCRC field
- CHop Limit field
- DTime Exceeded field
102Which firewall technique blocks incoming packets unless they are responses
to internal requests?- Aport filtering
- Bstateful packet inspection
- CURL filtering
- Dapplication filtering
103A network technician is investigating network connectivity from a PC to a
remote host with the address 10.1.1.5. Which command issued on the PC will return to the technician the complete path to the remote host?- Atrace 10.1.1.5
- Btraceroute 10.1.1.5
- Ctracert 10.1.1.5ping 10.1.1.5
- Dping 10.1.1.5
104Fill in the blank.
To prevent faulty network devices from carrying dangerous voltage levels, equipment must be grounded ___- Acorrectly
- B_____
105What is a possible hazard that can be caused by network cables in a fire?
- AThe cable insulation could be flammable.
- BUsers could be exposed to excessive voltage.
- CNetwork cables could be exposed to water.
- DThe network cable could explode.
106 What device is commonly used to verify a UTP cable?
- Aa multimeter
- Ban Optical Time Domain Reflectometer
- Ca cable tester
- Dan ohmmeter
107 What needs to be checked when testing a UTP network cable?
- Acapacitance
- Bwire map
- Cinductance
- Dflexibility
108Refer to the exhibit. A ping to PC2 is issued from PC0, PC1, and PC3 in this
exact order. Which MAC addresses will be contained in the S1 MAC address table that is associated with the Fa0/1 port?
- Ajust PC0 and PC1 MAC addresses
- Bjust the PC0 MAC address
- CPC0, PC1, and PC2 MAC addresses
- Djust the PC1 MAC address
- Ejust the PC2 MAC address
109Which function is provided by TCP?
- Adata encapsulation
- Bdetection of missing packets
- Ccommunication session control
- Dpath determination for data packets
110What does a router use to determine where to send data it receives from the
network?- Aan ARP table
- Ba routing table
- Cthe destination PC physical address
- Da switching table
111Which router interface should be used for direct remote access to the router
via a modem?- Aan inband router interface
- Ba console port
- Ca serial WAN interface
- Dan AUX port
112A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?
- Auser executive mode
- Bglobal configuration mode
- Cany line configuration mode
- Dprivileged EXEC mode
113Which three statements characterize the transport layer protocols? (Choose three.)
- ATCP and UDP port numbers are used by application layer protocols.
- BTCP uses port numbers to provide reliable transportation of IP packets.
- CUDP uses windowing and acknowledgments for reliable transfer of data.
- DTCP uses windowing and sequencing to provide reliable transfer of data.
- ETCP is a connection-oriented protocol. UDP is a connectionless protocol.
114Refer to the exhibit. A TCP segment from a server has been captured by Wireshark, which is running on a host. What acknowledgement number will the host return for the TCP segment that has been received?
- A2
- B21
- C250
- D306
- E2921
115Which statement is true about an interface that is configured with the IPv6 address command?
- AIPv6 traffic-forwarding is enabled on the interface.
- BA link-local IPv6 address is automatically configured on the interface.
- CA global unicast IPv6 address is dynamically configured on the interface.
- DAny IPv4 addresses that are assigned to the interface are replaced with an IPv6 address.
116Refer to the exhibit. An administrator must send a message to everyone on the router A network. What is the broadcast address for network 172.16.16.0/22?
- A172.16.16.255
- B172.16.20.255
- C172.16.19.255
- D172.16.23.255
- E172.16.255.255
117A network administrator is variably subnetting a given block of IPv4 addresses.
Which combination of network addresses and prefix lengths will make the most efficient use of addresses when the need is for 2 subnets capable of supporting 10 hosts and 1 subnet that can support 6 hosts?- A10.1.1.128/28
10.1.1.144/28
10.1.1.160/29 - B10.1.1.128/28
10.1.1.144/28
10.1.1.160/28 - C10.1.1.128/28
10.1.1.140/28
10.1.1.158/26 - D10.1.1.128/26
10.1.1.144/26
10.1.1.160/26 - E10.1.1.128/26
10.1.1.140/26
10.1.1.158/28
- A10.1.1.128/28
118How many additional bits should be borrowed from a /26 subnet mask in order to create subnets for WAN links that need only 2 useable addresses?
- A2
- B3
- C4
- D5
- E6
119Refer to the exhibit. The administrator configured the access to the console and the vty lines of a router. Which conclusion can be drawn from this configuration?
- AUnauthorized individuals can connect to the router via Telnet without entering a password.
- BBecause the IOS includes the login command on the vty lines by default, access to the device via Telnet will require authentication.
- CAccess to the vty lines will not be allowed via Telnet by anyone.
- DBecause the login command was omitted, the password cisco command is not applied to the vty lines.
120An administrator issued the service password-encryption command to apply encryption to the passwords configured for enable password, vty, and console lines. What will be the consequences if the administrator later issues the no service password-encryption command?
- AIt will remove encryption from all passwords.
- BIt will reverse only the vty and console password encryptions.
- CIt will not reverse any encryption.
- DIt will reverse only the enable password encryption.
121After making configuration changes, a network administrator issues a copy running-config startup-config command in a Cisco switch. What is the result of issuing this command?
- AThe new configuration will be stored in flash memory.
- BThe new configuration will be loaded if the switch is restarted.
- CThe current IOS file will be replaced with the newly configured file.
- DThe configuration changes will be removed and the original configuration will be restored.
122What are two features of ARP? (Choose two.)
- AIf a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast.*
- BAn ARP request is sent to all devices on the Ethernet LAN and contains the IP address of the destination host and its multicast MAC address.
- CWhen a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses.
- DIf no device responds to the ARP request, then the originating node will broadcast the data packet to all devices on the network segment.
- EIf a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.
123A network administrator is enabling services on a newly installed server. Which two statements describe how services are used on a server? (Choose two.)
- AData sent with a service that uses TCP is received in the order the data was sent.
- BA port is considered to be open when it has an active server application that is assigned to it.
- CAn individual server can have two services that are assigned to the same port number.
- DAn individual server cannot have multiple services running at the same time.
- EServer security can be improved by closing ports that are associated with unused services.
124Given the binary address of 11101100 00010001 00001100 00001010, which address does this represent in dotted decimal format?
- A234.17.10.9
- B234.16.12.10
- C236.17.12.6
- D236.17.12.10
125A particular telnet site does not appear to be responding on a Windows 7 computer. What command could the technician use to show any cached DNS entries for this web page?
- Aipconfig /all
- Bipconfig /displaydns
- Carp -a
- Dnslookup
126Fill in the blank.
Network devices come in two physical configurations. Devices that have expansion slots that provide the flexibility to add new modules have a Modular- Aconfiguration.
- B____
127Refer to the exhibit. What is the maximum TIL value that is used to reach the destination www.cisco.com?
- A11
- B12
- C13
- D14
128Which statement is true about DHCP operation?
- AWhen a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the network.
- BA client must wait for lease expiration before it sends another DHCPREOUEST message.
- CThe DHCPDISCOVER message contains the IP address and sub net masK to be assigned, the IP address of the DNS server, and the IP address of the default gateway.
- DIf the client receives several DHCPOFFER messages from different servers, it sends a unicast DHCPREOUEST message to the server from which it chooses to obtain the IP information.
129Which type of wireless security is easily compromised?
- AEAP
- BPSK
- CWEP
- DWPA
130 A network administrator notices that the throughput on the network appears
lower than expected when compared to the end-to-end network bandwidth. Which three factors can explain this difference? (Choose three.)- Athe amount of traffic
- Bthe type of data encapsulation in use
- Cthe type of traffic
- Dthe number and type of network devices that the data is crossing
- Ehe bandwidth of the connection to the ISP
- Fthe reliability of the network backbone
131A host PC is attempting to lease an address through DHCP. What message is sent by the server to the client know it is able to use the provided IP information?
- ADHCPDISCOVER
- BDHCPOFFER
- CDHCPPREQUEST
- DDHCPACK
- EDHCPNACK
132A network administrator is configuring access control to switch SW1. If the administrator uses console line to connect to the switch, which password is needed to access user EXEC mode?
- Aletmein
- Bsecretin
- Clineconin
- Dlinevtyin
133How many bits would need to be borrowed if a network admin were given the IP addressing scheme of 172.16.0.0/16 and needed no more than 16 subnet with equal number of hosts?
- A10
- B12
- C2
- D4
- E8
134It will give 4 options about ping, the correct one is:
- AThe PC2 will be able to ping 192.168.1.1
- B-------
135 Which statement best describes the operation of the File Transfer Protocol?
- AAn FTP client uses a source port number of 21 and a randomly generated destination port number during the establishment of control traffic with an FTP Server.
- BAn FTP client uses a source port number of 20 and a randomly generated destination port number during the establishment of data traffic with an FTP Server.
- CAn FTP server uses a source port number of 20 and a randomly generated destination port number during the establishment of control traffic with an FTP client.
- DAn FTP server uses a source port number of 21 and a randomly generated destination port number during the establishment of control traffic with an FTP client.
136A client is establishing a TCP session with a server. How is the acknowledgment number in the response segment to the client determined?
- AThe acknowledgment number field is modified by adding 1 to the randomly chosen initial sequence number in response to the client.
- BThe acknowledgment number is set to 11 to signify an acknowledgment packet and synchronization packet back to the client.
- CThe acknowledgment number field uses a random source port number in response to the client.
- DThe acknowledgment number is set to 1 to signify an acknowledgment packet back to the client.
137Why does layer 3 device perform the ANDing process on a destination IP and subnet Mask?
- Ato identify host address and destination host;
- Bto identify network address of destination host;
- Cto identify faulty frames;
- Dto identify broadcast address of destination network;
138There was also a question about if you activated service password encryption
in the past and you prompt “no service password encryption” what password are modified ?- Ano password at all
- Bpassword of the lines are in clear
- Clogin password
- D?
139What type of communication rule would best describe CSMA/CD?
- Amessage encapsulation
- Bflow control
- Cmessage encoding
- Daccess method
140What is the primary reason to subnet IPv6 prefixes?
- Ato conserve IPv6 addresses
- Bto avoid wasting IPv6 addresses
- Cto conserve IPv6 prefixes
- Dto create a hierarchical Layer 3 network design
141Which statement describes data throughput?
- AIt is the measure of the bits transferred across the media under perfect conditions
- BIt is the measure of the bits transferred across the media over a given period of time.
- CIt indicates the capacity of a particular medium to carry data.
- DIt is the guaranteed data transfer rate offered by an ISP.
142Fill in the blank. Use a number.
IPv4 multicast addresses are directly mapped to IEEE 802 (Ethernet) MAC addresses using the last _____ of the 28 available bits in the IPv4 multicast group
address.- A4
- B-----
143How could a faulty network device create a source of hazard for a user?
(Choose two.)- AIt could stop functioning.
- BIt could explode.
- CIt could apply dangerous voltage to other pieces of equipment.
- DIt could produce an unsafe electromagnetic field.
- EIt could apply dangerous voltage to itself.
144What are three important considerations when planning the structure of an IP addressing scheme? (Choose three.)
- Aimplementing new services
- Bconserving addresses
- Cmonitoring security and performance
- Ddocumenting the network
- Eproviding and controlling access
- Fpreventing duplication of addresses
145What is the metric value that is used to reach the 10.1.1.0 network in the following routing table entry? D 10.1.1.0/24 [90/2170112] via 209.165.200.226, 00:00:05, Serial0/0/0
- A24
- B90
- C05
- D2170112
146Which two services or protocols use the preferred UDP protocol for fast transmission and low overhead? (Choose two)
- AVoIP
- BDNS
- CHTTP
- DFTP
- EPOP3
147What action does a DHCPv4 client take if it receives more than one DHCPOFFER from multiple DHCP servers?
- AIt sends a DHCPREQUEST that identifies which lease offer the client is accepting.
- BIt sends a DHCPNAK and begins the DHCP process over again.
- CIt discards both offers and sends a new DHCPDISCOVER.
- DIt accepts both DHCPOFFER messages and sends a DHCPACK.
148To what legacy address class does the address 10.0.0.0 belong?
- AClass B
- BClass D
- CClass A
- DClass C
- EClass E
149What type of communication medium is used with a wireless LAN connection?
- Aradio waves
- Bfiber
- Cmicrowave
- DUTP
150Which method of IPv6 prefix assignment relies on the prefix contained in RA messages?
- AEUI-64
- Bstatic
- CSLAAC
- Dstateful DHCPv6
151 What is a characteristic of DNS?
- ADNS servers can cache recent queries to reduce DNS query traffic.
- BDNS servers are programmed to drop requests for name translations that are not within their zone.
- CAll DNS servers must maintain mappings for the entire DNS structure.
- DDNS relies on a hub-and-spoke topology with centralized servers.
152What is the prefix for the host address 2001:DB8:BC15:A:12AB::1/64?
- A2001:DB8:BC15
- B2001:DB8:BC15:A
- C2001:DB8:BC15:A:1
- D2001:DB8:BC15:A:12
153What information is maintained in the CEF adjacency table?
- ALayer 2 next hops
- BMAC address to IPv4 address mappings
- CIP address to interface mappings
- Dthe IP addresses of all neighboring routers
154Which command can an administrator issue on a Cisco router to send debug
messages to the vty lines?- Aterminal monitor
- Blogging console
- Clogging buffered
- Dlogging synchronous
Informações
- Descrição
- CCNA 1 Old Final exam 2018
- Autor
- aaa aaa
- Idioma
- English
- Visualizações
- 814
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