H12-211 : HCIA Routing & Switching : Part 03

H12-211 : HCIA Routing & Switching : Part 03

1. Which of the following statements about gratuitous ARP packets are true? (Choose two)

   • A system can determine whether conflicting IP addresses are used by sending a gratuitous ARP packet
   • A gratuitous ARP packet uses the same format as an ARP request packet.
   • A gratuitous ARP packet can help to update an IP address.
   • A gratuitous ARP packet uses the same format as an ARP reply packet.

2. UDP is connectionless oriented, which of the following must be used in order to ensure reliability?

   • Internet Protocol
   • Application Layer Protocol
   • Network Layer Protocol
   • Transmission Control Protocol

3. Refer to the graphic.

   

   The administrator has configured an IP address for Host A and Host B, but had forgotten to configure a default gateway.

   What effect will this have on the hosts?

   • Neither host will be affected, and therefore will be able to communicate with the peer.
   • Host A will be unable to connect to the router’s G0/0/0 interface.
   • Hosts will be unable to communicate unless arp-proxy is enabled on the router.
   • The host will be unable to reach neither the local nor remote network destinations.

4. Refer to the graphic.

   

   A host has established a telnet connection with the router attached to interface G0/0/0.

   Which of the following statements are correct? (Choose all that apply.)

   •  The destination MAC address of a frame sent by the host will be the MAC address of the router interface G0/0/0.
   • The destination MAC address of a frame sent by the host will be the MAC address of the switch.
   • The destination port number in a segment header will have a value of 80.
   • The destination IP address of a packet will be the IP address of the Router interface G0/0/0.

5. The administrator uses the ping command on the host to test connectivity to the website www.huawei.com.

   The command line shows a request time out. The administrator displays the ARP entries for the host.

   Which entry will be found in the ARP cache table of the host?

   • The MAC address of the destination www.huawei.com will exist in the ARP cache.
   • The MAC address of the switch will exist in the ARP cache.
   • The IP address of the destination www.huawei.com will exist in the ARP cache.
   • The MAC address of router interface G0/0/0, will exist in the ARP cache.

6. When R2 forwards data to R3 from R1, which of the following items will change? (Choose two)

   • The source MAC address
   • The destination MAC address
   • The source IP address
   • The destination IP address

7. If Host B also configured the IP address as “192.168.1.1/24”, an IP address config will occur.

   What will happen as a result?

   • Host B will send an ICMP request to the destination with the configured IP address. If a reply is received, the host will notify of an address conflict.
   • Host A will send a gratuitous ARP request to resolve the MAC address of the destination 192.168.1.1, for which Host B will reply.
   • Host B will send a gratuitous ARP request to resolve the MAC address of the destination 192.168.1.1, for which Host A will reply.
   • Host A will ignore any received ARP request intended for destination 192.168.1.1.

8. Refer to the graphic. A switch attempts to forward a frame to the MAC destination 5489-98ec-f011. What operation will occur on the switch?

   

   • The switch will send a request to obtain the MAC address of 5489-98ec-f011.
   • The switch will report that the destination is unreachable and report this to the source.
   • The switch will flood the frame via all ports, with exception of the port on which the frame was received.
   • The switch will drop the frame because it does not have an entry in its MAC address table.

9. Host A has been connected to a four port switch A on port G0/0/1and configured with an IP address.

   When Host A initially forwards a frame, what action will be taken by Switch A?

   • Switch A will drop this frame.
   • Switch A will attempt to flood the frame to all ports except for the G0/0/1 interface.
   • Switch A will forward the frame via ports G0/0/1, G0/0/2 and G0/0/3.
   • Switch will receive this frame before returning the frame to G0/0/1.

10. A server is linked to port interface G0/0/1 of a switch. The administrator wishes to allow only this server to be linked to this interface on the switch.

    Which method can be used to achieve this?

    • Configure a static ARP entry using the server’s IP address and MAC address in the switch.
    • Configure a static MAC address binding entry of the server’s MAC address and the interface in the switch.
    • Configure the default gateway of the switch to be the same as the server’s IP address.
    • It is not possible to enable a single device to be associated with an interface.

11. An administrator connects two switches together in a local enterprise network. The ports of one switch support Fast Ethernet, while the ports of the other switch support Gigabit Ethernet. Hosts connected to one switch are able to communicate, however communication between the two switches fails.

    What is the possible reason for this?

    • The ports have disabled auto-negotiation.
    • One port is supporting auto-negotiation, while auto-negotiation is disabled on the port of the other switch.
    • The port of one switch is operating using half duplex mode, while the port of the other switch is using full duplex mode.
    • A Fast Ethernet port cannot communicate directly with a Gigabit Ethernet port.

12. A layer 2 LAN switch generates CAM table entries according to the ( ) of the received frame.

    • Source MAC address
    • Destination MAC address
    • Source IP address
    • Destination IP address

13. Which of the following statements about collision domains and broadcast domains are correct? (Choose three)

    • Devices connected to the same hub form a collision domain
    • Devices connected to the same hub form a broadcast domain
    • Devices connected to the same bridge form a collision domain
    • Devices connected to the same bridge form a broadcast domain
    • Devices connected to the same router form a broadcast domain

14. Which of the following statements regarding layer-2 switch is incorrect?

    • The switch learns MAC addresses automatically.
    • The layer-3 header is modified before the received packet is transmitted.
    • The layer-2 header is modified before the received packet is transmitted.
    • The layer-2 LAN switch operates at data link layer.

15. Refer to the display output. What can be determined based on the output of the display command?

    

    • Interface Gigabit Ethernet 0/0/0 is connected to a wrong cable
    • Interface Gigabit Ethernet 0/0/0 is not associated with an IP address
    • Interface Gigabit Ethernet 0/0/0 is not associated with a dynamically defined route.
    • Interface Gigabit Ethernet 0/0/0 has been manually shut down by an administrator.

16. Which of the following statements regarding static and dynamic routing is incorrect?

    • The static route can be easily configured and managed on the enterprise network.
    • The use of dynamic routing is more convenient for the administrator to manage the network following network convergence.
    • The static route can automatically recover when a link failure is encountered.
    • Dynamic routing will use more resources than static routes.

17. Which of the following are routed protocols? (Choose all that apply.)

    • IP
    • OSPF
    • BGP
    • IPX

18. Which of the following statements regarding the routing table are correct? (Choose all that apply.)

    • The next hop in the routing table is redundant because the outgoing interface can be used for packet forwarding.
    • The routes from generated by different protocols have different preferences.
    • The metrics of different routing protocols are comparable.
    • The metrics of different routing protocols are not comparable

19. Which of the following commands can be used to display the routing table on a Quidway router?

    • display ip path
    • display ip routing-table
    • display interface
    • display current-configuration

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

    • source address
    • next hop
    • destination address
    • cost