H12-211 : HCIA Routing & Switching : Part 15

H12-211 : HCIA Routing & Switching : Part 15

1. Which of the following can be displayed on the Versatile Routing Platform (VRP) to indicate that GE port 2 on subcard 0 in slot 3 of a router?

   • interface GigabitEthernet 3/2/0
   • interface GigabitEthernet 3/0/2
   • interface Ethernet 3/0/2
   • interface XGigabitEthernet 3/0/2

2. You can run the “startup saved-configuration backup.cfg” command on the user interface of the Versatile Routing Platform (VRP) to specify the “backup.cfg” file as the configuration file for next startup.

   • True
   • False

3. When a network engineer enters a command, the following information is displayed:

   Error: Unrecognized command found at ‘^’ position. Which of the following statements is true about such information?

   • The parameter type is incorrect.
   • The entered command is incomplete.
   • The entered parameter is not specified.
   • No keyword is found.

4. In RSTP mode, interfaces in the Discarding state discard received data frames but maintain the MAC address table based on received data frames.

   • True
   • False

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

   

   •  The MAC address 5489-9811-0b49 is manually configured by the administrator.
   • The MAC address 5489-989d-1d30 is manually configured by the administrator.
   • The MAC address 5489-9885-18a8 is manually configured by the administrator.
   • After the switch restarts, all the MAC addresses need to be learned again.

6. The MAC address table of a switch is as follows. If the switch receives a data frame whose destination MAC address is 5489-9885-18a8 from Eth0/0/2, which of the following statements is true?

   

   • The data frame is forwarded through Eth0/0/2.
   • The data frame is flooded.
   • The data frame is forwarded through Eth0/0/1.
   • The data frame is discarded.

7. Which of the following descriptions about STP designated ports is correct?

   • Designated ports forward frames destined for the root switch.
   • Designated ports represent the path leading to the root switch.
   • Each bridge can have only one designated port.
   • Designated ports are responsible for sending BPDU to connected network segments.

8. What is the total length of the port ID in STP?

   • 4 bits
   • 8 bits
   • 2 bits
   • 16 bits

9. Which of the following statements are true about STP BPDUs?

   • During initialization, each switch enabled with STP proactively sends configuration BPDUs.
   • BPDUs are encapsulated in Ethernet frames and the destination MAC address is a multicast MAC address.
   • After STP is enabled on a port, the switch periodically sends TCN BPDUs through the designated port.
   • STP has two types of packets: configuration BPDU and TCN BPDU.

10. ICMP packets do not contain port numbers. Therefore, NAPT cannot be used.

    • True
    • False

11. Which of the following protocols can be used on a Layer 2 network with redundant links to prevent loops?

    • UDP
    • VRRP
    • STP
    • ARP

12. You can configure a static route on a broadcast interface by specifying the next-hop IP address or outbound interface.

    • True
    • False

13. What are the advantages of OSPF?

    • OSPF supports packet authentication.
    • OSPF can load balance traffic among equal-cost routes.
    • OSPF supports Classless Inter-Domain Routing (CIDR).
    • OSPF supports area partition.

14. Which of the following statements are true about the default route?

    • In a routing table, the route to 0.0.0.0 (with the mask being 0.0.0.0) is the default route.
    • If the destination address of a packet does not match any entry in the routing table, the packet is forwarded through the default route.
    • The default route can only be manually configured by the administrator.
    • The routing table of any router must contain the default route.

15. Which of the following OSPF packets can ensure LSA update reliability?

    • DD
    • LSR
    • LSU
    • LSU

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

    • Application layer
    • Data link layer
    • Network layer
    • Transport layer

17. On the network shown in the figure, if all routers run OSPF, which router is elected as the BDR?

    

    • Router B
    • Router A
    • Router D
    • Router C

18. The output of the following command on router R1 is as follows.

    

    • The router discards the packets destined for 11.0.0.0/8.
    • The packets destined for 12.0.0.0/8 are forwarded through Ethernet0/0/0 on the router.
    • The router forwards the packets destined for 12.0.0.0/8.
    • The packets destined for 11.0.0.0/8 are forwarded through GigabitEthernet0/0/0 on the router.

19. Which of the following statements about the “ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 20” command is true?

    • The destination network address of the route is 10.0.12.2/32.
    • The mask length of the destination network address of the route is 32 bits.
    • The preference of the route is 100.
    • The route must exist in the routing table.

20. Which of the following data packets are the OSPF protocol packets encapsulated into?

    • HTTP packet
    • TCP packet
    • IP packet
    • UDP packet