Huawei H12-221 Online Practice Questions and Exam Preparation

Huawei H12-221 Online Questions & Answers

• Question 11:

  Which of the following route prefixes match the IP-prefix-filter given below?

  "ip ip-prefix test index 10 permit 10.0.0.0 16 greater-equal 24 less-equal 28" (Select 3 answers)

  A. 10.0.1.0/23
  B. 10.0.1.0/24
  C. 10.0.1.0/25
  D. 10.0.1.0/28
  B. 10.0.1.0/24
  C. 10.0.1.0/25
  D. 10.0.1.0/28

• Question 12:

  A company has four departments. Department A has 80 PCs, Departments B and C both have 20 PCs, and Department D has 30 PCs. Assuming the IP address 192.168.1.0/x is used, which of the following statements are true if the VLSM technology is employed for subnetting? (Select 2 answers)

  A. Plan subnet 192.168.1.0/25 for Department A. The range of host addresses is 1 to 126.
  B. Plan subnet 192.168.1.128/27 for Department B. The range of host addresses is 129 to 159.
  C. Plan subnet 192.168.1.160/27 for Department C. The range of host addresses is 161 to 190.
  D. Plan subnet 192.168.1.192/27 for Department D. The range of host addresses is 192 to 222.
  A. Plan subnet 192.168.1.0/25 for Department A. The range of host addresses is 1 to 126.
  C. Plan subnet 192.168.1.160/27 for Department C. The range of host addresses is 161 to 190.

• Question 13:

  What is the mask value for the network 175.25.128.0/19?

  A. 255.255.0.0
  B. 255.255.224.0
  C. 255.255.24.0
  D. Different based on the address type
  B. 255.255.224.0

• Question 14:

  Which of the following statements are correct regarding OSPF Network LSAs? (Select 2 answers)

  A. Network LSAs are generated by ABR.
  B. Only the router which is connected to NBMA or Broadcast Network may generate Network LSAs.
  C. DR uses Network LSAs to describe routers that have established adjacency with it in the network,
  D. Network LSAs are flooded in the entire AS.
  B. Only the router which is connected to NBMA or Broadcast Network may generate Network LSAs.
  C. DR uses Network LSAs to describe routers that have established adjacency with it in the network,

• Question 15:

  How many Class C networks does the summarized route 192.168.134.0/22 cover?

  A. 2
  B. 4
  C. 8
  D. 16
  B. 4

• Question 16:

  Which of the following statements regarding multicast MAC addresses are true (Select 3 answers)

  A. The high-order 24 bits of a multicast MAC address are 0x01005e while the low-order 23 bits of a multicast MAC address are the low-order 23 bits of a multicast IP address.
  B. One multicast MAC address can map 32 different IP multicast addresses.
  C. Multicast MAC addresses are used in the link layer to identify receivers that are in the same multicast group.
  D. One multicast MAC address can map only one IP multicast address.
  A. The high-order 24 bits of a multicast MAC address are 0x01005e while the low-order 23 bits of a multicast MAC address are the low-order 23 bits of a multicast IP address.
  B. One multicast MAC address can map 32 different IP multicast addresses.
  C. Multicast MAC addresses are used in the link layer to identify receivers that are in the same multicast group.

• Question 17:

  BGP is an exterior gateway protocol which runs between ASs. It focuses on the control of route propagation and selection of optimal routes rather than discovery and calculation of routes.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 18:

  The vlink-peer command is used to specify a peer IP address for setting up a virtual link.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 19:

  By default, the cost of an OSPF interface is calculated based on the bandwidth. The formula to calculate the cost is reference bandwidth/interface bandwidth.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 20:

  What are the differences between the IGMP versions 1, 2 and 3? (Select 2 answers)

  A. IGMPv1/v2 cannot elect devices which may send queries but IGMPv3 can.
  B. IGMPv2/v3 members can actively leave groups, whereas in IGMPv1members cannot
  C. IGMPv1/v2 do not support the SSM service model but IGMFV3 does.
  D. IGMPv1/v2 do not support group-specific queries but IGMPv3 does.
  B. IGMPv2/v3 members can actively leave groups, whereas in IGMPv1members cannot
  C. IGMPv1/v2 do not support the SSM service model but IGMFV3 does.