CCNA LAB3

  1. QUESTION 1
    Which technology supports the stateless assignment of IPv6 addresses?
    A. DNS
    B. DHCPv6
    C. DHCP
    D. autoconfiguration
    Correct Answer: BD
    Explanation
    QUESTION 2
    What are two requirements for an HSRP group? (Choose two.)
    A. exactly one active router
    B. one or more standby routers
    C. one or more backup virtual routers
    D. exactly one standby active router
    E. exactly one backup virtual router
    Correct Answer: AB
    Explanation
    QUESTION 3
    After you configure the Loopback0 interface, which command can you enter to verify the status of the
    interface and determine whether fast switching is enabled?
    A. Router#show ip interface loopback 0
    B. Router#show run
    C. Router#show interface loopback 0
    D. Router#show ip interface brief
    Correct Answer: A
    Explanation
    QUESTION 4
    Which command sequence can you enter to create VLAN 20 and assign it to an interface on a switch?
    A. Switch(config)#vlan 20
    Switch(config)#Interface gig x/y
    Switch(config-if)#switchport access vlan 20
    B. Switch(config)#Interface gig x/y
    Switch(config-if)#vlan 20
    Switch(config-vlan)#switchport access vlan 20
    C. Switch(config)#vlan 20
    Switch(config)#Interface vlan 20
    Switch(config-if)#switchport trunk native vlan 20
    D. Switch(config)#vlan 20
    Switch(config)#Interface vlan 20
    Switch(config-if)#switchport access vlan 20
    E. Switch(config)#vlan 20
    Switch(config)#Interface vlan 20
    Switch(config-if)#switchport trunk allowed vlan 20
    Correct Answer: A
    Explanation
    QUESTION 5
    Which three commands can you use to set a router boot image? (Choose three.)
    A. Router(config)# boot system flash c4500-p-mz.121-20.bin
    B. Router(config)# boot system tftp c7300-js-mz.122-33.SB8a.bin
    C. Router(config)#boot system rom c7301-advipservicesk9-mz.124-24.T4.bin
    D. Router> boot flash:c180x-adventerprisek9-mz-124-6T.bin
    E. Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T.bin
    F. Router(config)#boot bootldr bootflash:c4500-jk9s-mz.122-23f.bin
    Correct Answer: ABC
    Explanation
    QUESTION 6
    Which two statements about IPv6 and routing protocols are true? (Choose two.)
    A. Link-local addresses are used to form routing adjacencies.
    B. OSPFv3 was developed to support IPv6 routing.
    C. EIGRP, OSPF, and BGP are the only routing protocols that support IPv6.
    D. Loopback addresses are used to form routing adjacencies.
    E. EIGRPv3 was developed to support IPv6 routing.
    Correct Answer: AB
    Explanation
    QUESTION 7
    If primary and secondary root switches with priority 16384 both experience catastrophic losses, which
    tertiary switch can take over?
    A. a switch with priority 20480
    B. a switch with priority 8192
    C. a switch with priority 4096
    D. a switch with priority 12288
    Correct Answer: A
    Explanation
    QUESTION 8
    Which two statements about late collisions are true? (Choose two.)
    A. They may indicate a duplex mismatch.
    B. By definition, they occur after the 512th bit of the frame has been transmitted.
    C. They indicate received frames that did not pass the FCS match.
    D. They are frames that exceed 1518 bytes.
    E. They occur when CRC errors and interference occur on the cable.
    Correct Answer: AB
    Explanation
    QUESTION 9
    Which command can you enter to set the default route for all traffic to an interface?
    A. router(config)#ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1
    B. router(config)#ip route 0.0.0.0 255.255.255.255 GigabitEthernet0/1
    C. router(config-router)#default-information originate
    D. router(config-router)#default-information originate always
    Correct Answer: A
    Explanation
    QUESTION 10
    Which two spanning-tree port states does RSTP combine to allow faster convergence? (Choose two.)
    A. blocking
    B. listening
    C. learning
    D. forwarding
    E. discarding
    Correct Answer: AB
    Explanation
    QUESTION 11
    If a router has four interfaces and each interface is connected to four switches, how many broadcast
    domains are present on the router?
    A. 1
    B. 2
    C. 4
    D. 8
    Correct Answer: C
    Explanation
    QUESTION 12
    Which command enables IPv6 forwarding on a Cisco router?
    A. ipv6 local
    B. ipv6 host
    C. ipv6 unicast-routing
    D. ipv6 neighbor
    Correct Answer: C
  2. QUESTION 13
    While troubleshooting a connection problem on a computer, you determined that the computer can ping a specific web server but it cannot connect to TCP port 80 on that server. Which reason for the problem is most likely ture?
    A. A VLAN number is incorrect
    B. An ARP table entry is missing
    C. A route is missing
    D. An ACL is blocking the TCP port
    Answer: D
    QUESTION 14
    When troubleshooting Ethernet connectivity issues, how can you verify that an IP address is known to a router?
    A. Check whether the IP address is in the routing table
    B. Check whether an ACL is blocking the IP address
    C. Check whether the IP address is in the CAM table
    D. Check whether the IP address is in the ARP table
    Answer: D
    QUESTION 15
    Which two statements about IPv6 address 2002:ab10:beef::/48 are true? (Choose two.)
    A. The embedded IPv4 address can be globally routed
    B. It is used for an ISATAP tunnel
    C. The embedded IPv4 address is an RFC 1918 address
    D. The MAC address 20:02:b0:10:be:ef is embedded into the IPv6 address
    E. It is used for a 6to4 tunnel
    Answer: AE
    QUESTION 16
    Which two steps must you perform on each device that is configured for IPv4 routing before you implement OSPFv3? (Choose two.)
    A. configure an autonomous system number
    B. configure a loopback interface
    C. configure a router ID
    D. enable IPv6 on an interface
    E. enable IPv6 unicast routing
    Answer: CE
    QUESTION 17
    Which option is the main function of congestion management?
    A. discarding excess traffic
    B. queuing traffic based on priority
    C. classifying traffic
    D. providing long-term storage of buffered data
    Answer: B
    QUESTION 18
    Which command must you enter to enable OSPFV2 in an IPV4 network?
    A. ip ospf hello-interval seconds
    B. router ospfv2 process-id
    C. router ospf value
    D. router ospf process-id
    Answer: D

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