Question No. 1

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

ABGP calculates and discovers the optimal route.

BBGP uses TCP as the transport layer protocol with a port number of 179.

CBGP stability is ensured by the high reliability of TCP, not by its own mechanism.

DBGP sends only updated routing information, thereby saving a large amount of bandwidth resources.

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Correct Answer: A

Question No. 2

Which of the following statements about SNMP are not true? (Multiple Choice)

ASNMP is an application layer protocol that requires reliable TCP at the transport layer to provide services.

BSNMP is used to manage information transmitted between the two points, making it easy for administrators to perform operations.

CSNMP uses the client/server model.

DThere are three SNMP protocol versions. Currently, only SNMPv3 supports community name-based security mechanisms.

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Correct Answer: B

Question No. 3

During SDN network fault locating, which of the following commands can be used to collect basic runtime information for datacom devices?

Adisplay version

Bdisplay diagnostic-information

Cdisplay log

Ddisplay current-configuration

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Correct Answer: A

Question No. 4

Which of the following interfaces are provided by SDN reflect programmability? (Multiple Choice)

ANorthbound interface

BSouthbound interface

CEastbound-westbound interface

DAPI PLC programming interface

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Correct Answer: A, B

Question No. 5

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

AAfter the OpenFlow channel is successfully established, the controller actively queries port information from FPs.

BThe controller sends Multipart Request messages to query port information.

CFPs respond with a Multipart Reply message for batch delivery of port information.

DWhen a port changes, the corresponding FP actively sends a Flow Mod message to report the port change information.

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Correct Answer: A, C

Free Huawei H31-611 Exam Actual Questions