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cisco_75-148
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Questions in this quiz (74)
175. What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly on a network?
- AIt checks the value of the TTL field and if it is 0, it discards the packet and sends a Destination Unreachable message to the source host.
- BIt checks the value of the TTL field and if it is 100, it discards the packet and sends a Destination Unreachable message to the source host.
- CIt decrements the value of the TTL field by 1 and if the result is 0, it discards the packet and sends a Time Exceeded message to the source host.
- DIt increments the value of the TTL field by 1 and if the result is 100, it discards the packet and sends a Parameter Problem message to the source host.
276. A client packet is received by a server. The packet has a destination port number of 69. What service is the client requesting?
- ADNS
- BDHCP
- CSMTP
- DTFTP
377. An administrator defined a local user account with a secret password on router R1 for use with SSH. Which three additional steps are required to configure R1 to accept only encrypted SSH connections? (Choose three.)
- AConfigure DNS on the router.
- BGenerate two-way pre-shared keys.
- CConfigure the IP domain name on the router.
- DGenerate the SSH keys.
- EEnable inbound vty SSH sessions.
- FEnable inbound vty Telnet sessions.
478. Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)
- Aplaces information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame
- Badds Ethernet control information to network protocol data
- Cresponsible for internal structure of Ethernet frame
- Denables IPv4 and IPv6 to utilize the same physical medium
- Eimplements trailer with frame check sequence for error detection
579. An IPv6 enabled device sends a data packet with the destination address of FF02::2. What is the target of this packet?
- Aall IPv6 enabled devices on the local link
- Ball IPv6 DHCP servers
- Call IPv6 enabled devices across the network
- Dll IPv6 configured routers on the local link
680. What are the three parts of an IPv6 global unicast address? (Choose three.)
- Asubnet ID
- Bsubnet mask
- Cbroadcast address
- Dglobal routing prefix
- Einterface ID
781. A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv6 address?
- AIt must send a DHCPv6 INFORMATION-REQUEST message to request the address of the DNS server.
- BIt must send a DHCPv6 REQUEST message to the DHCPv6 server to request permission to use this address.
- CIt must send an ICMPv6 Router Solicitation message to determine what default gateway it should use.
- DIt must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network.
882. A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?
- AEnter CTRL-Z at the privileged mode prompt.
- BExit global configuration mode.
- CPower cycle the device.
- DReboot the device.
- EExit privileged EXEC mode and press Enter .
983. What method is used to manage contention-based access on a wireless network?
- Atoken passing
- BCSMA/CA
- Cpriority ordering
- DCSMA/CD
1084. What is a function of the data link layer?
- Aprovides the formatting of data
- Bprovides end-to-end delivery of data between hosts
- Cprovides delivery of data between two applications
- Dprovides for the exchange of frames over a common local media
1185. What is the purpose of the TCP sliding window?
- Ato ensure that segments arrive in order at the destination
- Bto end communication when data transmission is complete
- Cto inform a source to retransmit data from a specific point forward
- Dto request that a source decrease the rate at which it transmits data
1286. What characteristic describes spyware?
- Aa network device that filters access and traffic coming into a network
- Bsoftware that is installed on a user device and collects information about the user
- Can attack that slows or crashes a device or network service
- Dthe use of stolen credentials to access private data
1387. Which switching method drops frames that fail the FCS check?
- Astore-and-forward switching
- Bborderless switching
- Cingress port buffering
- Dcut-through switching
1488. Two pings were issued from a host on a local network. The first ping was issued to the IP address of the default gateway of the host and it failed. The second ping was issued to the IP address of a host outside the local network and it was successful. What is a possible cause for the failed ping?
- AThe default gateway is not operational.
- BThe default gateway device is configured with the wrong IP address.
- CSecurity rules are applied to the default gateway device, preventing it from processing ping requests.
- DThe TCP/IP stack on the default gateway is not working properly.
1589. What service is provided by FTP?
- AA basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
- BAn application that allows real-time chatting among remote users.
- CAllows for data transfers between a client and a file server.
- DUses encryption to secure the exchange of text, graphic images, sound, and video on the web.
1690. A user is attempting to access http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access? (Choose two.)
- ADNS server
- Bsource port number
- CHTTP server
- Dsource MAC address
- Edefault gateway
1791. Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)
- ANAT adds authentication capability to IPv4.
- BNAT introduces problems for some applications that require end-to-end connectivity.
- CNAT will impact negatively on switch performance.
- DNAT provides a solution to slow down the IPv4 address depletion.
- ENAT improves packet handling.
- FNAT causes routing tables to include more information.
1892. What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?
- A255.255.255.0
- B255.255.255.240
- C255.255.255.128
- D255.255.255.192
- E255.255.255.224
1993. Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC2. In this scenario, what will happen next?
- APC2 will send an ARP reply with its MAC address.
- BRT1 will send an ARP reply with its Fa0/0 MAC address.
- CRT1 will send an ARP reply with the PC2 MAC address.
- DSW1 will send an ARP reply with the PC2 MAC address.
- ESW1 will send an ARP reply with its Fa0/1 MAC address.
2094. What service is provided by BOOTP?
- AUses encryption to secure the exchange of text, graphic images, sound, and video on the web.
- BAllows for data transfers between a client and a file server.
- CLegacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network.
- DA basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
2195. What characteristic describes adware?
- Aa network device that filters access and traffic coming into a network
- Bsoftware that is installed on a user device and collects information about the user
- Cthe use of stolen credentials to access private data
- Dan attack that slows or crashes a device or network service
2296. What is a benefit of using cloud computing in networking?
- ATechnology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.
- BNetwork capabilities are extended without requiring investment in new infrastructure, personnel, or software.
- CEnd users have the freedom to use personal tools to access information and communicate across a business network.
- DHome networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables.
2397. Match a statement to the related network model. (Not all options are used.)
requires a specific user interface
no dedicated server is required
a background service is required
client and server roles are set on a per request basis
devices can only function in one role at a time
peer-to-peer network
[blank_start]no dedicated server is required[blank_end]
[blank_start]client and server roles[blank_end]
peer-to-peer application
[blank_start]requires a specific user interface[blank_end]
[blank_start]a background service is required[blank_end]- Arequires a specific user interface
- Bno dedicated server is required
- Ca background service is required
- Dclient and server roles
- Edevices can only function
2498. Which information does the show startup-config command display?
- Athe IOS image copied into RAM
- Bthe bootstrap program in the ROM
- Cthe contents of the current running configuration file in the RAM
- Dthe contents of the saved configuration file in the NVRAM
2599. Refer to the exhibit. What three facts can be determined from the viewable output of the show ip interface brief command? (Choose three.)
- ATwo physical interfaces have been configured.
- BThe switch can be remotely managed.
- COne device is attached to a physical interface.
- DPasswords have been configured on the switch.
- ETwo devices are attached to the switch.
- FThe default SVI has been configured.
26Match each type of frame field to its function. (Not all options are used.)
addressing - [blank_start]This field helps to...[blank_end]
error detection - [blank_start]This field checks if...[blank_end]
type - [blank_start]This field is used by...[blank_end]
frame start - [blank_start]This field identifies the beginning...[blank_end]
This field checks if the frame has been damaged during the transfer.
This field identifies special flow control services.
This field helps to direct the frametoward its destination.
This field identifies the beginning of a frame.
This field is used by the LLC to identify the Layer 3 protocol.- AThis field helps to
- BThis field checks if
- CThis field is used by
- DThis field identifies the beginning
- EThis field identifies special
27101. What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64?
- A2001:DA48::/64
- B2001:DA48:FC5::A4:/64
- C2001:DA48:FC5:A4::/64
- D2001::/64
28Match the firewall function to the type of threat protection it provides to the network. (Not all options are used.)
prevents access by port number – [blank_start]application filtering[blank_end]
prevents access based on IP or MAC address – [blank_start]packet filtering[blank_end]
prevents unsolicited incoming sessions – [blank_start]stateful packet inspection[blank_end]
prevents access to websites – [blank_start]URL filtering[blank_end]- Aapplication filtering
- Bpacket filtering
- Cstateful packet inspection
- DURL filtering
- Enetwork address translator
29103. Users are reporting longer delays in authentication and in accessing network resources during certain time periods of the week. What kind of information should network engineers check to find out if this situation is part of a normal network behavior?
- Asyslog records and messages
- Bthe network performance baseline
- Cdebug output and packet captures
- Dnetwork configuration files
30104. What characteristic describes a VPN?
- Asoftware on a router that filters traffic based on IP addresses or applications
- Bsoftware that identifies fast-spreading threats
- Ca tunneling protocol that provides remote users with secure access into the network of an organization
- Da network device that filters access and traffic coming into a network
31105. Which two statements are correct in a comparison of IPv4 and IPv6 packet headers? (Choose two.)
- AThe Source Address field name from IPv4 is kept in IPv6.
- BThe Version field from IPv4 is not kept in IPv6.
- CThe Destination Address field is new in IPv6.
- DThe Header Checksum field name from IPv4 is kept in IPv6.
- EThe Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.
32106. A network administrator wants to have the same network mask for all networks at a particular small site. The site has the following networks and number of devices:
IP phones – 22 addresses
PCs – 20 addresses needed
Printers – 2 addresses needed
Scanners – 2 addresses needed
The network administrator has deemed that 192.168.10.0/24 is to be the network used at this site. Which single subnet mask would make the most efficient use of the available addresses to use for the four subnetworks?- A255.255.255.192
- B255.255.255.252
- C255.255.255.240
- D255.255.255.248
- E255.255.255.0
- F255.255.255.224
33107. What is an advantage to using a protocol that is defined by an open standard?
- AA company can monopolize the market.
- BThe protocol can only be run on equipment from a specific vendor.
- CAn open standard protocol is not controlled or regulated by standards organizations.
- DIt encourages competition and promotes choices.
34108. A network administrator is adding a new LAN to a branch office. The new LAN must support 200 connected devices. What is the smallest network mask that the network administrator can use for the new network?
- A255.255.255.240
- B255.255.255.0
- C255.255.255.248
- D255.255.255.224
35109. What are three commonly followed standards for constructing and installing cabling? (Choose three.)
- Acost per meter (foot)
- Bcable lengths
- Cconnector color
- Dpinouts
- Econnector types
- Ftensile strength of plastic insulator
36110. Refer to the exhibit. What is wrong with the displayed termination?
- AThe woven copper braid should not have been removed.
- BThe wrong type of connector is being used.
- CThe untwisted length of each wire is too long.
- DThe wires are too thick for the connector that is used.
37Match the characteristic to the category. (Not all options are used.)
IP address
[blank_start]contained in the Layer 3[blank_end]
[blank_start]separated into a network[blank_end]
[blank_start]32 or 128 bits[blank_end]
MAC address
[blank_start]contained in the Layer 2[blank_end]
[blank_start]separated into OUI[blank_end]
[blank_start]48 bits[blank_end]
contained in the Layer 3 header
contained in the Layer 2 header
separated into OUI and a unique identifier
separated into a network portion and a unique identifier
32 or 128 bits
48 bits
64 bits- Acontained in the Layer 3
- Bcontained in the Layer 2
- Cseparated into OUI
- Dseparated into a network
- E32 or 128 bits
- F48 bits
- G64 bits
38112. A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting?
- AIMAP
- BFTP
- CSSH
- DTelnet
39113. What are two characteristics shared by TCP and UDP? (Choose two.)
- Adefault window size
- Bconnectionless communication
- Cport numbering
- D3-way handshake
- Eability to to carry digitized voice
- Fuse of checksum
40114. Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?
- AHeader Length
- BDifferentiated Services
- CTime-to-Live
- DFragment Offset
41115. A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting?
- AFTP
- BLDAP
- CSLP
- DSNMP
42116. What attribute of a NIC would place it at the data link layer of the OSI model?
- Aattached Ethernet cable
- BIP address
- CMAC address
- DRJ-45 port
- ETCP/IP protocol stack
43117. A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network?
- A255.255.255.240
- B255.255.255.192
- C255.255.255.248
- D255.255.255.224
44118. A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet?
- Awhen the router receives an ICMP Time Exceeded message
- Bwhen the RTT value reaches zero
- Cwhen the host responds with an ICMP Echo Reply message
- Dwhen the value in the TTL field reaches zero
- Ewhen the values of both the Echo Request and Echo Reply messages reach zero
45119. Refer to the exhibit. The network administrator has assigned the LAN of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 prefix. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the properties of the workgroup server to allow connectivity to the Internet?
- AIP address: 192.168.10.65 subnet mask: 255.255.255.240, default gateway: 192.168.10.76
- BIP address: 192.168.10.38 subnet mask: 255.255.255.240, default gateway: 192.168.10.33
- CIP address: 192.168.10.38 subnet mask: 255.255.255.248, default gateway: 192.168.10.33
- DIP address: 192.168.10.41 subnet mask: 255.255.255.248, default gateway: 192.168.10.46
- EIP address: 192.168.10.254 subnet mask: 255.255.255.0, default gateway: 192.168.10.1
46120. Refer to the exhibit. The switches are in their default configuration. Host A needs to communicate with host D, but host A does not have the MAC address for its default gateway. Which network hosts will receive the ARP request sent by host A?
- Aonly host D
- Bonly router R1
- Conly hosts A, B, and C
- Donly hosts A, B, C, and D
- Eonly hosts B and C
- Fonly hosts B, C, and router R1
47121. Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.)
- Avideo
- Bweb
- Cfile transfer
- Dvoice
- Epeer to peer
48122. Which wireless technology has low-power and data rate requirements making it popular in home automation applications?
- AZigBee
- BLoRaWAN
- C5G
- DWi-Fi
49123. Which layer of the TCP/IP model provides a route to forward messages through an internetwork?
- Aapplication
- Bnetwork access
- Cinternet
- Dtransport
50124. Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?
- ADNS
- Bemail
- Cfile
- Dweb
51125. What are proprietary protocols?
- Aprotocols developed by private organizations to operate on any vendor hardware
- Bprotocols that can be freely used by any organization or vendor
- Cprotocols developed by organizations who have control over their definition and operation
- Da collection of protocols known as the TCP/IP protocol suite
52126. What service is provided by DNS?
- AResolves domain names, such as cisco.com, into IP addresses.
- BA basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
- CAllows for data transfers between a client and a file server.
- DUses encryption to secure the exchange of text, graphic images, sound, and video on the web.
53127. A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?
- ADNS
- BDHCP
- CSMTP
- DPOP3
54128. What command can be used on a Windows PC to see the IP configuration of that computer?
- Ashow ip interface brief
- Bping
- Cshow interfaces
- Dipconfig
55129. A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?
- Aclient-based
- Bmaster-slave
- Cpoint-to-point
- Dpeer-to-peer (P2P)
56130. What characteristic describes a virus?
- Aa network device that filters access and traffic coming into a network
- Bthe use of stolen credentials to access private data
- Can attack that slows or crashes a device or network service
- Dmalicious software or code running on an end device
57131. Three bank employees 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 corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?
- Afinancial transactions, web page, audio conference
- Baudio conference, financial transactions, web page
- Cfinancial transactions, audio conference, web page
- Daudio conference, web page, financial transactions
58Match the description to the IPv6 addressing component. (Not all options are used.)
This part of the address is used by an organization to identify subnets - [blank_start]subnet ID[blank_end]
This network portion of the address is assigned by the provider - [blank_start]global routing prefix[blank_end]
This part of the address is the equivalent to the host portion of an IPv4 address - [blank_start]interface ID[blank_end]- Asubnet ID
- Bsubnet mask
- Cglobal routing prefix
- Dinterface ID
59133. Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?
- Aonly application and Internet layers
- Bonly Internet and network access layers
- Conly application, Internet, and network access layers
- Dapplication, transport, Internet, and network access layers
- Eonly application, transport, network, data link, and physical layers
- Fapplication, session, transport, network, data link, and physical layers
60134. Match the characteristic to the forwarding method. (Not all options are used.)
cut-through
[blank_start]has low latency[blank_end]
[blank_start]may forward runt frames[blank_end]
[blank_start]begins forwarding[blank_end]
store-and-forward
[blank_start]always stores the entire frame[blank_end]
[blank_start]checks the CRC before forwarding[blank_end]
[blank_start]checks the frame[blank_end]
always stores the entire frame
checks the CRC before forwarding
checks the frame length before forwarding
does not forward broadcasts
has low latency
may forward runt frames
begins forwarding when the destination address is received- Aalways stores the entire frame
- Bchecks the CRC before forwarding
- Cchecks the frame
- Ddoes not forward broadcasts
- Ehas low latency
- Fmay forward runt frames
- Gbegins forwarding
61135. Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1?
- AR1: S0/0/0
- BR2: S0/0/1
- CR1: G0/0
- DR2: S0/0/0
62136. What service is provided by Internet Messenger?
- AAn application that allows real-time chatting among remote users.
- BAllows remote access to network devices and servers.
- CResolves domain names, such as cisco.com, into IP addresses.
- DUses encryption to provide secure remote access to network devices and servers.
63Refer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network.
Network A - [blank_start]192.168.0.128 /25[blank_end]
Network B - [blank_start]192.168.0.0 /26[blank_end]
Network C - [blank_start]192.168.0.96 /27[blank_end]
Network D - [blank_start]192.168.0.80/30[blank_end]
- A192.168.0.128 /25
- B192.168.0.0 /26
- C192.168.0.96 /27
- D192.168.0.80/30
64138. Refer to the exhibit. Which protocol was responsible for building the table that is shown?
- ADHCP
- BARP
- CDNS
- DICMP
65139. A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)
- Acrosstalk
- Bextended length of cabling
- CRFI
- DEMI
- Esignal attenuation
66140. A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in its ARP cache. How will the device obtain a destination MAC address?
- AIt will send the frame and use its own MAC address as the destination.
- BIt will send an ARP request for the MAC address of the destination device.
- CIt will send the frame with a broadcast MAC address.
- DIt will send a request to the DNS server for the destination MAC address.
- EIt will send an ARP request for the MAC address of the default gateway.
67141. Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication?
- Aintegrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper
- Benables IPv4 and IPv6 to utilize the same physical medium
- Chandles communication between upper layer networking software and Ethernet NIC hardware
- Dadds Ethernet control information to network protocol data
- Eimplements CSMA/CD over legacy shared half-duplex media
68142. A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?
- ADNS
- BNetBIOS (NetBT)
- CPOP3
- DIMAP
69143. A network administrator is adding a new LAN to a branch office. The new LAN must support 25 connected devices. What is the smallest network mask that the network administrator can use for the new network?
- A255.255.255.128
- B255.255.255.192
- C255.255.255.224
- D255.255.255.240
70144. What characteristic describes a Trojan horse?
- Amalicious software or code running on an end device
- Ban attack that slows or crashes a device or network service
- Cthe use of stolen credentials to access private data
- Da network device that filters access and traffic coming into a network
71145. What service is provided by HTTPS?
- AUses encryption to provide secure remote access to network devices and servers.
- BResolves domain names, such as cisco.com, into IP addresses.
- CUses encryption to secure the exchange of text, graphic images, sound, and video on the web.
- DAllows remote access to network devices and servers.
72146. A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?
- AThe data flow is being tracked based on the destination MAC address of the technician PC.
- BThe data flow is being tracked based on the source port number that is used by each application.
- CThe data flow is being tracked based on the source IP address that is used by the PC of the technician.
- DThe data flow is being tracked based on the destination IP address that is used by the PC of the technician.
73147. A network administrator is adding a new LAN to a branch office. The new LAN must support 61 connected devices. What is the smallest network mask that the network administrator can use for the new network?
- A255.255.255.240
- B255.255.255.224
- C255.255.255.192
- D255.255.255.128
74 Refer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network. (Not all options are used.)
Network A - [blank_start]192.168.0.0 /25[blank_end]
Network B - [blank_start]192.168.0.128 /26[blank_end]
Network C - [blank_start]192.168.0.192 /27[blank_end]
Network D - [blank_start]192.168.0.224 /30[blank_end]
- A192.168.0.0 /25
- B192.168.0.0 /24
- C192.168.0.128 /26
- D192.168.0.228 /32
- E192.168.0.192 /27
- F192.168.0.224 /30
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- Quiz on cisco_75-148, created by Julia Melody on 13/05/2020.
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- Julia Melody
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