H12-211 : HCIA Routing & Switching : Part 20

H12-211 : HCIA Routing & Switching : Part 20

1. Which of the following fields is not included in the OSPF Hello packet?

   • Hello Interval
   • Neighbor
   • Network Mask
   • Sysname

2. What is the value of the Type field in RSTP configuration BPDUs?

   • 0×00
   • 0×01
   • 0×02
   • 0×03

3. If the configuration information of a router is as follows, which user name and password are used by the peer router to perform PPP link authentication?

   aaa
   local-user test password cipher test
   local-user test service-type ppp
   local-user test1 password cipher test1
   local-user test1 service-type telnet
   local-user test2 password cipher test2
   #
   interface Serial1/0/0
   link-protocol ppp
   ppp authentication-mode pap
   ip address 10.0.12.1 255.255.255.0
   #

   • User name: test
     Password: test 
   • User name: test1
     Password: test1
   • User name: test2
     Password: test2
   • User name: test2
     Password: test

4. Users in the network discovered that the efficiency of a file transfer is low. The administrator used wireshark to observe the network and discovered many duplicate frames.

   Which statement correctly explains the reason for this?

   • The switch doesn’t know the destination and has flooded frames.
   • This network needs upgrading to use newer and more efficient switches.
   • The network has loops at the link layer. 
   • The network has not been segmented using VLANs.

5. As shown in the figure, which of the following ports will become the designated port?

   

   • G0/0/3 of SWB
   • G0/0/1 of SWC
   • G0/0/2 of SWC
   • G0/0/1 of SWB

6. Which of the following commands can be used to change the device name to huawei?

   • sysname huawei 
   • hostname huawei
   • rename huawei
   • do name huawei

7. Which of the following OSPF packets can be used to send LSAs to the peer router?

   • LSR
   • LSA
   • LSU
   • LSACK

8. If the output information of a router is as follows, which of the following tunnel protocols is used by the interface?

   [Router A]display interface Tunnel 0/0/0
   Tunnel0/0/0 current state : UP
   Line protocol current state : UP
   Last line protocol up time : 2019-03-06 11:03:15 UTC-08:00
   Description:HUAWEI, AR Series, Tunnel0/0/0 Interface
   Route Port,The Maximum Transmit Unit is 1500
   Internet Address is unnumbered, using address of LoopBack0(10.0.1.1/32)
   Encapsulation is TUNNEL, loopback not set
   Tunnel source 10.0.12.1 (GigabitEthernet0/0/0), destination 10.0.12.2
   Tunnel protocol/transport GRE/IP, key disabled

   • GRE 
   • IPsec
   • LDP
   • MPLS

9. Which layer of the OSI reference model does the PPP protocol define?

   • Presentation layer
   • Data link layer
   • Network layer
   • Application layer

10. What is the UDP port number used by the DHCPv6 server?

    • 546
    • 547
    • 548
    • 549

11. Which of the following addresses is the solicited-node multicast address corresponding to the IPv6 address 2019::8:AB?

    • FF02::1:FF08:AB
    • FF02::1:FF20:19
    • FF02::FF08:AB
    • FF02::1:FE08:AB

12. Which of the following statements is false about OSPF area partition?

    • The link state databases (LSDBs) of routers are the same in the same OSPF area.
    • OSPF area partition can reduce the LSDB size of the router. 
    • Area 0 is the backbone area, and other areas must be connected to this area.
    • Only area border routers (ABRs) can function as the autonomous system boundary routers (ASBRs).

13. Which type of DHCP packets does a DHCP client send when it wants to leave a network?

    • DHCP Discover packet
    • DHCP Release packet 
    • DHCP Request packet
    • DHCP ACK packet

14. Which of the following OSPF packets can be sent to request the local lacking LSAs?

    • HELLO
    • LSU
    • LSR
    • LSACK

15. When the header length of an IPv4 data packet is 20B and the total packet length is 1500B, what is the valid payload of the packet?

    • 1500B
    • 1480B 
    • 1520B
    • 20B

16. What is the destination address of DHCPv6 request packets?

    • FF02::1:2
    • FF02::1
    • FF02::2
    • FF01::1:2

17. What is the number range of a basic ACL?

    • 2000-2999
    • 3000-3999
    • 4000-4999
    • 6000-6031

18. MPLS dual-label stacking packets are _____ bytes longer than original IP packets.

    • 4
    • 8
    • 16
    • 32

19. Which of the following values if the Flag field of an IPv6 multicast address indicates that the multicast address is a permanent multicast address?

    • 0
    • 1
    • 2
    • 3

20. According to the following DHCPv6 address pool configuration of a router, which of the following DNS server addresses can the host that uses DHCPv6 stateful autoconfiguration obtain?

    #
    dhcpv6 pool test
    address prefix 3000::/64
    excluded-address 3000::1
    dns-server 2000::1
    dns-domain-name huawei
    dns-domain-name huawei.com
    #

    • 3000::1/64
    • 2000::1/64 
    • 3000::2/64
    • 3000::3000/64