H12-211 : HCIA Routing & Switching : Part 17

H12-211 : HCIA Routing & Switching : Part 17

1. In the MPLS domain, the full name of LER is label egress router.

   • True
   • False

2. Which area ID is used by OSPFv3 to identify the backbone area?

   • 0
   • 3
   • 2
   • 1

3. The output of the “display vlan” command on a switch is as follows.

   

   Which of the following statements are true?

   • When GE0/0/1 of the switch forwards data frames from VLAN 20, the frames are untagged.
   • When GE0/0/1 of the switch forwards data frames from VLAN 10, the frames are untagged.
   • When GE0/0/2 of the switch forwards data frames from VLAN 20, the frames are tagged.
   • Four VLANs are manually created.

4. Which of the following authentication method is more secure for PPP?

   • CHAP.
   • MD5.
   • SSH.
   • PAP.

5. Which of the following cannot be the length of an IPv4 packet header?

   • 64B
   • 60B
   • 20B
   • 32B

6. The following shows a command output on a device. Which of the following statements are true? (Choose three.)

   

   • The IP address of the interface is 10.0.12.2/24.
   • The MTU value of the interface is 1000.
   • The working rate of the interface is 1 Gbit/s.
   • The MAC address of the interface is 00e0-fc22-4fff.

7. If the “user-interface maximum-vty 0” command is run on a router, which of the following statements is true?

   • A maximum of 5 VTY users can access the router at the same time.
   • No user can log in to the router through Telnet or SSH.
   • A maximum of 15 VTY users can access the router at the same time.
   • A maximum of 4 VTY users can access the router at the same time.

8. Which of the following methods is not used for logging in to the VRP system?

   • SSH.
   • Web.
   • Netstream.
   • Telnet.

9. After a device is reset, an interface card is hot swapped, or an interface card is reset, the saved MAC address entries on the device or interface card are not lost.

   • True
   • False

10. Which of the following MAC addresses are not aged out? (Choose two.)

    • Static MAC address
    • Dynamic MAC address
    • Blackhole MAC address
    • Port MAC address

11. As shown in the figure, all hosts can communicate with each other. Which of the following is true about the mapping relationships between MAC addresses and ports on SWB?

    

    • MAC-A G0/0/2
      MAC-B G0/0/2
      MAC-C G0/0/3
    • MAC-A G0/0/3
      MAC-B G0/0/3
      MAC-C G0/0/1
    • MAC-A G0/0/1
      MAC-B G0/0/1
      MAC-C G0/0/3
    • MAC-A G0/0/1
      MAC-B G0/0/2
      MAC-C G0/0/3

12. Refer to the graphic. Which of the following statement describes the network shown?

    

    • There are 4 collision domains in the network.
    • There are 2 broadcast domains in the network.
    • There are 6 broadcast domains in the network.
    • There are 6 collision domains in the network.

13. Which of the following statements is true about the Forward Delay timer of STP?

    • Reduce the interval for sending BPDUs.
    • Improve the configuration BPDU lifetime, ensuring that the configuration BPDUs can be forwarded to more switches.
    • Improve the STP convergence speed.
    • Prevent temporary loops.
    • Delay is required when a port transitions between Blocking and Disabled.

14. Which of the following statements is true about the MAC address table of a switch?

    

    • The switch discards the data frame whose source MAC address is 5489-9811-0b49.
    • The switch discards the data frame whose destination MAC address is 5489-9885-18a8.
    • The switch discards the data frame whose destination MAC address is 5489-9811-0b49.
    • The switch discards the data frame whose destination MAC address is 5489-989d-1d30.

15. Which of the following parameters is not contained in STP configuration BPDUs?

    • Root ID
    • VLAN ID
    • Bridge ID
    • Port ID

16. Which layer of the OSI reference model does a router work at?

    • Physical layer
    • Data link layer
    • Network layer
    • Transport layer

17. Which of the following entries is not included in the routing table?

    • MAC
    • Next-hop address
    • Destination/Mask
    • Cost

18. According to the figure, which of the following statements is true?

    

    • Host A and Host B can communicate with each other only when the IP addresses of host A and host B have the same masks.
    • Host A can successfully ping host B.
    • The IP address mask of Host A is different from that of Host B. Therefore, Host A and Host B cannot communicate with each other.
    • The broadcast addresses of Host A and Host B are the same.

19. Which of the following packets is used by OSPF to discover and maintain neighbor relationships?

    • HELLO
    • LSU
    • LSR
    • DD

20. On the network shown in the figure, all routers run OSPF and the cost value is above the link. Which of the following is the path for Router A to send packets to 10.0.0.0/8?

    

    • A-B-D
    • A-C-D
    • RA fails to reach 10.0.0.0/8.
    • A-D