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Perguntas do quiz (51)
1A network administrator is designing a new network infrastructure that includes both wired and wireless connectivity. Under which situation would a wireless connection be recommended?
- AThe end-user device requires a dedicated connection because of performance requirements.
- BThe end-user device area has a high concentration of RFI.
- CThe end-user device needs mobility when connecting to the network.
- DThe end-user device only has an Ethernet NIC.
2A user is attempting to do an http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access? (Choose two.)
- AWINS server
- BHTTP server
- CNetbios
- DDNS server
- EDefault gateway
3Which 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- EThe Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.
4A user calls the help desk to report that a Windows XP workstation is unable to connect to the network after startup and that a popup window says “This connection has limited or no connectivity.” The technician asks the user to issue the ipconfig /all command. The user reports the IP address is 169.254.69.196 with subnet mask of 255.255.0.0 and nothing is displayed for the DNS server IP address. What is the cause of the problem?
- AThe DNS server IP address needs to be configured
- BThe subnet mask was configured incorrectly.
- CThe workstation is unable to obtain an IP address from a DHCP server.
- DThe workstation NIC has malfunctioned.
5A network administrator has been issued a network address of 192.31.7.64/26. How many subnets of equal size could be created from the assigned /26 network by using a /28 prefix?
- A16
- B8
- C3
- D6
- E4
- F14
6Why are port numbers included in the TCP header of a segment?
- ATo allow the receiving host to assemble the packet in the proper order
- BTo enable a receiving host to forward the data to the appropriate application
- CTo determine which Layer 3 protocol should be used to encapsulate the data
- DTo identify which switch ports should receive or forward the segment
- ETo indicate the correct router interface that should be used to forward a segment
7Refer to the exhibit. Which layer of the OSI model would format data in this way?
- AData link
- BApplication
- CTransport
- DNetwork
- EPhysical
8Which two types of applications rely on their traffic having priority over other traffic types through the network? (Choose two.)
- AEmail
- BVoice
- CFile transfer
- DInstant messaging
- EVideo
9In dotted decimal notation, the IP address “172.25.0.126” is the last host address for the network 172.25.0.64/26
- AVerdadeiro
- BFalso
10Which IPv6 address notation is valid?
- AABCD:160D::4GAB:FFAB
- B2001:0DB8::ABCD::1234
- C2001:DB8:0:1111::200
- D2001::ABCD::
11To revert to a previous configuration, an administrator issues the command copy tftp startup-config on a router and enters the host address and file name when prompted. After the command is completed, why does the current configuration remain unchanged?
- AA TFTP server can only be used to restore the Cisco IOS, not the router configuration.
- BThe command should have been copy startup-config tftp.
- CThe configuration should have been copied to the running configuration instead.
- DThe configuration changes were copied into RAM and require a reboot to take effect.
12What are two characteristics of a scalable network? (Choose two.)
- AIs not as reliable as a small network
- BGrows in size without impacting existing users
- CEasily overloaded with increased traffic
- DSuitable for modular devices that allow for expansion
- EOffers limited number of applications
13Which two functions are primary functions of a router? (Choose two.)
- APacket switching
- BMicrosegmentation
- CDomain name resolution
- DFlow control
- EPath selection
14Using default settings, what is the next step in the router boot sequence after the IOS loads from flash?
- APerform the POST routine.
- BSearch for a backup IOS in ROM.
- CLoad the bootstrap program from ROM.
- DLoad the running-config file from RAM.
- ELocate and load the startup-config file from NVRAM.
15A router boots and enters setup mode. What is the reason for this?
- ACisco IOS is missing from flash memory.
- BThe POST process has detected hardware failure.
- CThe IOS image is corrupt.
- DThe configuration file is missing from NVRAM.
16What is an ISP?
- AIt is a networking device that combines the functionality of several different networking devices in one.
- BIt is an organization that enables individuals and businesses to connect to the Internet.
- CIt is a protocol that establishes how computers within a local network communicate.
- DIt is a standards body that develops cabling and wiring standards for networking.
17What information is added during encapsulation at OSI Layer 3?
- ASource and destination port number
- BSource and destination MAC
- CSource and destination IP address
- DSource and destination application protocol
18What are two ways that TCP uses the sequence numbers in a segment? (Choose two.)
- ATo limit the number of segments that can be sent out of an interface at one time.
- BTo specify the order in which the segments travel from source to destination
to reassemble the segments at the remote location. - CTo identify missing segments at the destination.
- DTo determine if the packet changed during transit.
19Which statement describes a characteristic of the traceroute utility?
- AIt is primarily used to test connectivity between two hosts.
- BIt sends four Echo Request messages.
- CIt identifies the routers in the path from a source host to a destination host.
- DIt utilizes the ICMP Source Quench messages.
20Refer to the exhibit. HostA is attempting to contact ServerB. Which two statements correctly describe the addressing that HostA will generate in the process? (Choose two.)
- AA packet with the destination IP address of RouterA.
- BA frame with the destination MAC address of SwitchA.
- CA frame with the destination MAC address of RouterA.
- DA packet with the destination IP address of RouterB.
- EA packet with the destination IP address of ServerB.
- FA frame with the destination MAC address of ServerB.
21For which three reasons was a packet-switched connectionless data communications technology used when developing the Internet? (Choose three.)
- AIt requires that a data circuit between the source and destination be established before data can be transferred.
- BIt can rapidly adapt to the loss of data transmission facilities.
- CIt efficiently utilizes the network infrastructure to transfer data.
- DIt allows for billing of network use by the amount of time a connection is established.
- EData packets can travel multiple paths through the network simultaneously.
22A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?
- AData link layer
- BPhysical layer
- CNetwork layer
- DPresentation layer
23What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?
- AIt will remove the frame from the media.
- BIt will discard the frame.
- CIt will forward the frame to the next host.
- DIt will strip off the data-link frame to check the destination IP address.
24What are the three parts of an IPv6 global unicast address? (Choose three.)
- ABroadcast address
- BGlobal routing prefix
- CSubnet mask
- DSubnet ID
- EInterface ID*
25A PC that is communicating with a web server is utilizing a window size of 6,000 bytes when sending data and a packet size of 1,500 bytes. What byte of information will the web server acknowledge after it has received four packets of data from the PC?
- A1,500
- B5
- C6,001
- D1,501
- E6,000
26What three primary functions does data link layer encapsulation provide? (Choose three.)
- AError detection
- BPort identification
- CAddressing
- DPath determination
- EIP address resolution
- FFrame delimiting
27Refer to the exhibit. A network engineer is attempting to connect to a new router to perform the initial configuration. The engineer connects a rollover cable from the serial port of a PC to the Aux port on the router, then configures HyperTerminal as shown. The engineer cannot get a login prompt in HyperTerminal. What would fix the problem?
- AMove the cable to the router console port.
- BUse a crossover cable instead of a rollover cable.
- CConnect to the Ethernet port on the PC.
- DChange connection settings to even parity.
28The administrator of a branch office receives an IPv6 prefix of 2001:db8:3000::/52 from the corporate network manager. How many subnets can the administrator create?
- A1024
- B2048
- C4096
- D8192
- E65536
29Refer to the exhibit. Which two settings could be changed to improve security on the wireless network? (Choose two.)
- AWide channel
- BRadio band
- CSSID
- DNetwork mode
- ESSID broadcast
- FStandard channel
30The minimum Ethernet frame size is “64” bytes. Anything smaller than that should be considered a “runt frame.”
- AVerdadeiro
- BFalso
31Refer to the exhibit. From global configuration mode, an administrator is attempting to create a message-of-the-day banner by using the command banner motd V Authorized access only! Violators will be prosecuted! V When users log in using Telnet, the banner does not appear correctly. What is the problem?
- AThe symbol “!” signals the end of a banner message.
- BMessage-of-the-day banners will only appear when a user logs in through the console port.
- CThe banner message is too long.
- DThe delimiting character appears in the banner message.
32Which router configuration mode would an administrator use to configure the router for SSH or Telnet login access?
- AInterface
- BRouter
- CLine
- DPrivileged EXEC
- EGlobal
33Which service will translate private internal IP addresses into Internet routable public IP addresses?
- ANAT
- BDNS
- CARP
- DDHCP
34What three statements describe features or functions of media access control? (Choose three.)
- AEthernet utilizes CSMA/CD.
- B802.11 utilizes CSMA/CD.
- CIt uses contention-based access also known as deterministic access.
- DData link layer protocols define the rules for access to different media.
- EControlled media access involves collision handling.
- FIt is responsible for detecting transmission errors in transmitted data.
35Which interface configuration mode command puts a Layer 3 switch interface into Layer 3 mode? ”no switchport”
- AVerdadeiro
- BFalso
36A small satellite office has been given the overall network number of 192.168.99.0/24 and the network technician can subdivide the network addresses as needed. The office needs network access for both wired and wireless devices. However, because of the security consideration, these two networks should be separate. The wired network will have 20 devices. The wireless network has a potential connection of 45 devices. Which addressing scheme would be most efficient for these two networks?
- A192.168.99.0/27
192.168.99.32/28 - B192.168.99.0/27
192.168.99.32/26 - C192.168.99.0/26
192.168.99.64/27 - D192.168.99.0/28
192.168.99.64/26 - E192.168.99.0/28
192.168.99.16/28
- A192.168.99.0/27
37What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)
- AGreater bandwidth potential
- BLimited susceptibility to EMI/RFI
- CDurable connections
- DEasily terminated
- EGreater distances per cable run
- FLower installation cost
38A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?
- APoint-to-point
- BMesh
- CPartial mesh
- DHub and spoke
39What is the function of CSMA/CA in a WLAN?
- AIt assures that clients are connected to the correct WLAN.
- BIt describes the smallest building block of the WLAN.
- CIt provides the mechanism for media access.
- DIt allows a host to move between cells without loss of signal.
40A network administrator enters the service password-encryption command into the configuration mode of a router. What does this command accomplish?
- AThis command provides an exclusive encrypted password for external service personnel who are required to do router maintenance.
- BThis command enables a strong encryption algorithm for the enable secret password command.
- CThis command encrypts passwords as they are transmitted across serial WAN links.
- DThis command prevents someone from viewing the running configuration passwords.
- EThis command automatically encrypts passwords in configuration files that are currently stored in NVRAM.
41A nibble consists of “4” bits.
- AVerdadeiro
- BFalso
42Why are the paired wires twisted in a CAT5 cable?
- ATo improve the mechanical strength
- BTo provide eletromagnetic noise cancellation
- CTo facilitate cable termination in the connector
- DTo extend the signaling length
43A medium-sized business is researching available options for connecting to the Internet. The company is looking for a high speed option with dedicated, symmetric access. Which connection type should the company choose?
- ACable modem
- BDSL
- CSatellite
- DLeased line
- EDialup
44Refer to the exhibit. What will be the result of entering this configuration the next time a network administrator connects a console cable to the router and no additional commands have been entered?
- AThe administrator will be presented with the R1> prompt.
- BThe administrator will be required to enter Cisco789.
- CThe administrator will be required to enter Cisco234.
- DThe administrator will be required to enter Cisco123.
45The ARP table in a switch maps which two types of address together?
- ALayer 2 address to a Layer 4 address
- BLayer 3 address to a Layer 2 address
- CLayer 4 address to a Layer 2 address
- DLayer 3 address to a Layer 4 address
46Which is a function of the show ip route command when used as a tool for troubleshooting network connectivity?
- AShows the IP address of the next hop router for each route
- BLists the IP addresses of all hops the traffic will pass through to reach the destination network
- CShows the incoming and outgoing interfaces the traffic will go through in order to reach the destination network
- DIndicates the point of failure in the connection
47Refer to the graphic. What is the effect of setting the security mode to WEP on the Linksys integrated router?
- AIt encrypts data between the wireless client and the access point.
- BIt identifies the wireless LAN.
- CIt allows the access point to inform clients of its presence.
- DIt translates an internal address or group of addresses into an outside, public address.
- EIt translates IP addresses into easy-to-remember domain names.
48What are two actions performed by a Cisco switch? (Choose two.)
- ABuilding a routing table that is based on the first IP address in the frame header
- BUtilizing the MAC address table to forward frames via the destination MAC address
- CForwarding frames with unknown destination IP addresses to the default gateway
- DUsing the source MAC addresses of frames to build and maintain a MAC address table
- EExamining the destination MAC address to add new entries to the MAC address table
49Refer to the exhibit. Using VLSM, what is the largest and smallest subnet mask required on this network in order to minimize address waste?
- A255.255.254.0 and 255.255.255.252
- B255.255.255.128 and 255.255.255.224
- C255.255.254.0 and 255.255.255.224
- D255.255.255.0 and 255.255.255.252
50Refer to the exhibit. An administrator is testing connectivity to a remote device with the IP address 10.1.1.1. What does the output of this command indicate?
- AThe connection timed out while waiting for a reply from the remote device.
- BA ping packet is being blocked by a security device along the path.
- CA router along the path did not have a route to the destination.
- DConnectivity to the remote device was successful.
51What is one purpose of the TCP three-way handshake?
- ASynchronizing sequence numbers between source and destination in preparation for data transfer
- BDetermining the IP address of the destination host in preparation for data transfer
- CSending echo requests from the source to the destination host to establish the presence of the destination
- DRequesting the destination to transfer a binary file to the source
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- level 7 Networking Quiz sobre Sem título, criado por dayna11bn em 18-10-2015.
- Autor
- dayna11bn
- Idioma
- English
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