Huawei H12-821 Online Practice Questions and Exam Preparation

Huawei H12-821 Online Questions & Answers

• Question 121:

  Which of the following statements regarding OSPF multi-instance is false?

  A. Route exchange between different OSPF processes is similar to route exchange between different routing protocols.
  B. An interface of a router belongs to only a certain OSPF process.
  C. The OSPF process IDs must be the same when OSPF neighbor relationships are established between different routers.
  D. Multiple OSPF processes can run on the same router, and they are independent of each other.
  C. The OSPF process IDs must be the same when OSPF neighbor relationships are established between different routers.

• Question 122:

  VRRP is implemented based on the priority and preemption functions of VRRP routers. Which of the following statements is false about the VRRP solution?

  A. When preemption is enabled, a backup device preempts the master role if it has a higher priority than the current master.
  B. When preemption is disabled, a backup device does not preempt the master role even if it has a higher priority than the current master, provided that the current master is working properly.
  C. The master periodically sends VRRP Advertisement packets in the VRRP group to advertise its configurations such as the priority.
  D. Even if the VRRP device is the IP address owner, it still needs to participate in the election and does not directly transition to the Master state when receiving a message indicating that the interface goes Up.
  D. Even if the VRRP device is the IP address owner, it still needs to participate in the election and does not directly transition to the Master state when receiving a message indicating that the interface goes Up.

• Question 123:

  Which of the following attributes cannot be directly referenced in an apply clause of a route-policy?

  A. community
  B. IP-prefix
  C. tag
  D. origin
  B. IP-prefix

• Question 124:

  On an enterprise network, the directly connected interfaces of two OSPF routers are on different network segments and have different masks. To establish an OSPF neighbor relationship between the two interfaces, you can change their network types to which of the following?

  A. Point-to-point
  B. NBMA
  C. P2MP
  D. Broadcast
  A. Point-to-point

• Question 125:

  When a routing policy is used to filter routes, which of the following route prefixes will be denied by the IP prefix below? [HUAWEI]ip ip-prefix aa index 10 permit 1.1.1.1 24 greater-equal 26 less-equal 32

  A. 1.1.1.1/26
  B. 1.1.1.2/16
  C. 1.1.1.1/32
  D. 1.1.1.1/24
  B. 1.1.1.2/16
  D. 1.1.1.1/24

• Question 126:

  Which of the following statements about WLAN roaming are true?

  A. APs for roaming do not need to have overlapping signal coverage.
  B. APs for roaming must be in the same extended service set (ESS).
  C. APs for roaming must have overlapping signal coverage.
  D. APs for roaming must be in the same basic service set (BSS).
  A. APs for roaming do not need to have overlapping signal coverage.

• Question 127:

  On the campus OSPF network shown in the following figure, the interfaces connecting the five routers are GE interfaces, and their costs are not changed. The import-route command is run on R1. After the network converges, the route to the server at 192.168.1.0/24 is queried on R2. Which of the following is the cost of this route?

  

  A. 2
  B. 4
  C. 3
  D. 1
  C. 3

• Question 128:

  Which of the following statements about multicast packet forwarding is true?

  A. If a multicast data packet fails the RPF check, the packet must have been received through a sub- optimal interface. However, this interface still receives and forwards the multicast traffic downstream.
  B. IGMP snooping cannot control the scope of multicast traffic flooding on a Layer 2 network.
  C. The source address of a multicast packet is a unicast address.
  D. In multicast transmission, the destination address of a packet can be the unicast address of a host.
  C. The source address of a multicast packet is a unicast address.

• Question 129:

  Which of the following protocols are multi-channel protocols?

  A. H.323
  B. FTP
  C. Telnet
  D. SMTP
  A. H.323
  B. FTP

• Question 130:

  An enterprise uses Huawei routers to deploy an IS-IS network for network-wide communication. An engineer wants to change the interface cost to control route selection. By default, which of the following values is the maximum cost that can be configured?

  A. 67
  B. 63
  C. 64
  D. 68
  B. 63