Huawei h31-611 practice test

HCIA-SDN V1.0 Exam

Last exam update: May 12 ,2024
Page 1 out of 4. Viewing questions 1-15 out of 60

Question 1

SNMP uses connectionless UDP as the transmission protocol, whereas NETCONF uses connection-
oriented TCP.

  • A. TRUE
  • B. FALSE
Answer:

B

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Question 2

Which of the following statements are true about OpenFlow interface information reporting?
(Multiple Choice)

  • A. After the OpenFlow channel is successfully established, the controller actively queries port information from FPs.
  • B. The controller sends Multipart Request messages to query port information.
  • C. FPs respond with a Multipart Reply message for batch delivery of port information.
  • D. When a port changes, the corresponding FP actively sends a Flow Mod message to report the port change information.
Answer:

AC

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Question 3

On an SDN network, OpenFlow connection backup data mainly includes which of the following?
(Multiple Choice)

  • A. Collected forwarder interface information
  • B. Binding relationship between the logical interface of the controller and the forwarder's physical interface
  • C. Connection management information of the forwarder
  • D. Collected forwarder VLAN information
Answer:

CD

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Question 4

OpenFlow channel establishment and maintenance involves which of the following messages?
(Multiple Choice)

  • A. Collected forwarder interface information
  • B. Features Request message
  • C. Echo Request message
  • D. PortStatus message
Answer:

AB

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Question 5

In the SDN VXLAN solution, when an OpenFlow connection between the controller and a forwarder is
torn down, the forwarder retains the static MAC address and ARP entries so that traffic can be
normally forwarded.

  • A. TRUE
  • B. FALSE
Answer:

B

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Question 6

In the OpenFlow network switch model, the underlying data channel opens the flow table's public
API to the outside and uses the SNC to control the entire network.

  • A. TRUE
  • B. FALSE
Answer:

A

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Question 7

Which of the following statements about BGP are true? (Multiple Choice)

  • A. BGP calculates and discovers the optimal route.
  • B. BGP uses TCP as the transport layer protocol with a port number of 179.
  • C. BGP stability is ensured by the high reliability of TCP, not by its own mechanism.
  • D. BGP sends only updated routing information, thereby saving a large amount of bandwidth resources.
Answer:

A

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Question 8

Which of the following methods does not support traffic importing to the MPLS TE tunnel?

  • A. Static routing
  • B. Dynamic routing
  • C. Automatic routing
  • D. Policy-based routing
Answer:

D

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Question 9

Which of the following statements are true about the meaning of the peer 20.1.1.2 allow-as-loop 2
command? (Multiple Choice)

  • A. The local AS number can be repeated in the AS_Path attribute in the received routes.
  • B. 2 indicates the number of times the AS number can be repeated.
  • C. This command can only be used on EBGP peers.
  • D. By default, the number of times the AS number is allowed to be duplicated is 1.
Answer:

CD

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Question 10

Which statement about BGP is true?

  • A. BGP is used in ASs or between ASs to transmit and control routing information.
  • B. BGP is used in an AS to discover paths.
  • C. BGP is directly carried in IP packets.
  • D. BGP must establish peer relationships based on direct links.
Answer:

A

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Question 11

In BGP, which of the following are methods for loop avoidance?

  • A. The Origin attribute of a route records the source from which the route was imported
  • B. In a route's AS-Path attribute, all ASs along the path are recorded.
  • C. In the next-hop attribute of a route, the route's next hop is recorded.
  • D. The MED attribute of a route affects the outbound interface selection of another AS.
Answer:

B

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Question 12

For a router that runs BGP4, which of the following statements is not true?

  • A. When multiple paths exist, BGP4 selects the optimal path.
  • B. BGP4 notifies the routes obtained from EBGP to all its BGP peers.
  • C. BGP4 advertises to BGP peers only the routes it uses.
  • D. BGP4 notifies the routes obtained from IBGP to all its BGP peers.
Answer:

C

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Question 13

What kind of BGP packet contains routing information?

  • A. Open
  • B. Update
  • C. Keepalive
  • D. Notification
Answer:

A

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Question 14

What kind of packet is used by BGP to transmit version number and AS number information?

  • A. Open
  • B. Update
  • C. Keepalive
  • D. Notification
Answer:

D

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Question 15

Which of the following statements are true about the DIS in IS-IS? (Multiple Choice)

  • A. A DIS creates and updates pseudo nodes on a broadcast network.
  • B. DIS election is unpredictable.
  • C. When all IS priorities are the same within a LAN, the IS with the largest MAC address is elected as the DIS.
  • D. DIS election on a broadcast network is held in preemption mode.
Answer:

AB

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