H31-124_V2.0 Online Practice Questions and Answers

The Ethernet switch working in store and forward mode drops the frame with length smaller than 64 bytes.

A. True

B. False

The VRRP advertfse-lnterval is 2s, preempt mode is enabled, Delay Time is 3s, then which of the following is the Master_Down_Interval time?

A. 2s

B. 4s

C. 9s

D. 6s

Which of the following statements are correct?

A. Both TE FRR and VPN FRR are used to protect tunnels, and therefore they can replace each other.

B. After VPN FRR is deployed, the end-to-end service convergence time is shorter than 1 second.

C. TE FRR Implements quick traffic switchovers if a PE becomes faulty.

D. VPN FRR implements quick traffic switchovers if a PE becomes faulty.

Which of the following cannot be used to classify IP packets?

A. VIAN Priority

B. MAC

C. Protocol type

D. Port number

E. Packet precedence

F. Outbound Interface

Which of the following statements about traffic policy In CBQ configuration ate correct?

A. Traffic policy nesting means one QoS policy contains another QoS policy, the behavior of the parent policy Is a sub-policy.

B. Traffic policy is used to bind traffic classifier with traffic behavior.

C. Traffic policy can be nested infinitely.

D. The traffic policy applied to some interface can not be deleted.

BGP Is an exterior gateway protocol which runs among ASs. It focuses on routes control and selection of optimal routes rather than discovery and calculation of routes.

A. True

B. False

Which of the following statements regarding DIS election is correct?

A. When the priority is the same, the router with higher IP address will be elected as the DIS.

B. When a DIS fails, the backup DIS will take over.

C. The IS-IS router with the highest priority in the whole broadcast network will be elected as the DIS.

D. DIS election is configured manually.

In BGP4+, both the NUU field and next-hop attribute can be expressed with an IPv6 address and prefix.

A. True

B. False

Which of the BGP attributes is Optional transitive attribute?

A. AS_PATH

B. MED

C. NEXT_HOP

D. ORIGIN

E. LOCAL_PREF

F. COMMUNITY

Which of the statements about BGP UPDATE message are correct?

A. One UPDATE message can advertise multiple routes at one time, but the path attributes must be the same.

B. One UPDATE message can include multiple unreachable routes.

C. One UPDATE message can advertise multiple routes at one time, and the path attributes can be different.

D. BGP uses Update message to implement routing information updating.