Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 831:

  Which of the following IEEE standards is specific to Gigabit Ethernet? (Choose two)

  A. 8023z
  B. 8023ab
  C. 8023ad
  D. 8023af
  A. 8023z
  B. 8023ab

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  Explanation

• Question 832:

  In BGP4+, what is the content of the next hop network address field carried in the MP_REACH_NLRI attribute of an Update packet?

  A. The link-local address and global unicast address can be carried at the same time.
  B. It can be only a link-local address.
  C. It must be a global unicast address.
  D. It must be a link-local address.
  C. It must be a global unicast address.

• Question 833:

  An IPv6 basic header has a fixed length.

  A. TRUE
  B. FALSE
  A. TRUE

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  Explanation

• Question 834:

  Python Paramiko implements the SSH protocol. In the Python Paramiko module, which of the following classes is used to create SFTP sessions and perform remote file operations?

  A. Packetizer class
  B. SFTPClient class
  C. Channel class
  D. Transport class
  B. SFTPClient class

• Question 835:

  In addition to indicating priority, the DSCP value can also indicate the drop probability. Which of the following DSCP values is set with the highest drop probability?

  A. AF43
  B. AF10
  C. AF12
  D. AF11
  A. AF43

• Question 836:

  A carrier's home broadband service requires a maximum downstream bandwidth of 100 Mbit/s during off-peak hours and a guaranteed downstream bandwidth of 50 Mbit/s during peak hours. The home broadband service includes both home IP phone service and home Internet access service.

  Which of the following configurations best meets the service requirement?

  A. qos gts cir 100000
  B. qos car inbound cir 50000 pir 100000
  C. qos car inbound cir 100000 pir 50000
  D. qos car inbound cir 100000
  B. qos car inbound cir 50000 pir 100000

• Question 837:

  Which of the following messages does the BGP protocol support? (Choose three)

  A. Update
  B. Open
  C. Hello
  D. Keepalive
  A. Update
  B. Open
  D. Keepalive

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  Explanation

• Question 838:

  On a virtualized network deployed using iMaster NCE-Campus, after creating VNs, you need to configure inter-VN communication. Which of the following configurations is used to achieve VN communication?

  A. Configure traffic filtering.
  B. Create a static route for the VPN instance corresponding to the VN.
  C. Deploy OSPF for the VPN instance corresponding to the VN.
  D. Deploy a routing policy.
  D. Deploy a routing policy.

• Question 839:

  In a network using MPLS VPN, different CE (Customer Edge) devices can exchange routing information with the same PE (Provider Edge) device using different routing protocols. The routing protocols used between different CE devices and the same PE device are independent of each other.

  A. True
  B. False
  A. True

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  Explanation

• Question 840:

  When you deploy BGP/MPLS IP VPN, if two VPNs share a common site, that common site must not use overlapping address spaces with the other sites of the two VPNs.

  Which of the following descriptions for configuring static LSPs in MPLS networks is correct? (Choose two)

  A. When an LSR is an ingress LSR, only the Out Label is configured, which ranges from 16?048575
  B. When an LSR is a transit LSR, both the In Label and Out Label must be configured, both in the range 16?023
  C. When an LSR is a transit LSR, both the In Label and Out Label must be configured; the In Label range is 16?023, and the Out Label range is 16?048575
  D. When an LSR is an egress LSR, only the In Label needs to be configured, ranging from 16?023
  B. When an LSR is a transit LSR, both the In Label and Out Label must be configured, both in the range 16?023
  D. When an LSR is an egress LSR, only the In Label needs to be configured, ranging from 16?023