2021儿科护理专业实践能力真题模拟07-25

1、You are troubleshooting a one-way call problem with a cisco 7920 wireless ip phone on a standalone wlan. What may have caused this problem？（）（单选题）

A. the minimum data rate is not set to 11 mbps.

B. publicly secure packet forwarding is enabled.

C. the access point is set to the least congested channel.

D. an address resolution protocol has been disabled.

试题答案：D

2、 Refer to the exhibit. All routers have Protocol Independent Multicast (PIM) enabled interfaces. On the basis of the configuration provided on routers R1 and R2, which router will take on the func tion of rendezvous point (RP) for the multicast network? （） （单选题）

A. both routers R1 and R2

B. router R1

C. router R2

D. none of the routers since they are not configured with static RP

试题答案：C

3、How does a controller-based access point configured to operate in sniffer mode behave？（）（单选题）

A. allows client traffic， captures data on all channels

B. allows client traffic， captures data on a single channel

C. allows no client traffic， captures data on all channels

D. allows no client traffic， captures data on a single channel

试题答案：D

4、风湿性舞蹈病首选药物（　　）。（单选题）

A.

B.

C.

D.

E.

试题答案：C

5、Which BGP attribute is used by BGP to prevent routing loops?（）（单选题）

A. AS - path

B. next - hop

C. MED

D. weight

E. local preference

F. origin

试题答案：A