2021儿科护理专业实践能力真题模拟04-20

1、If the dispersion of a given fiber is 17ps/nm*km at 1550 nm and zero at 1310 nm, then what is the accumulated dispersion of an ITU wavelength after it travels 200 km?（）（单选题）

A. 0 ps/nm

B. 340 ps/nm

C. 200 ps/nm

D. 3400 ps/nm

E. More information is needed.

试题答案：D

2、Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello - interval eigrp 9 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this c hange？（）（单选题）

A. The show ip eigrp neighbors command on R1 lists the revised Hello timer

B. The show ip eigrp interfaces command on R1 lists the revised Hello timer

C. The R1 - R2 neighborship fails due to Hello timer mismatcH

D. The show ip eigrp interfaces detail command on R1 lists the revised Hello timer

试题答案：D

3、 Refer to the exhibit. ROUTE.com has just implemented this EIGRP network. A network administrator came to you for advice while trying to implement load balancing across part of their EIGRP network. If the variance value is configured as 2 on all routers and all o ther metric and K values are configured to their default values, traffic from the Internet to the data center will be load balanced across how many paths? （） （单选题）

A. 1

B. 2

C. 3

D. 4

E. 5

试题答案：C

4、You are charged with implementing a secure wireless installation which will provide Internet access to client devices but will not allow communications between wireless clients. In addition toimplementing PSPF or peer-to-peer blocking on the wireless side. Which of the following actionsshould you perform on the wired infrastructure？（）（单选题）

A. Implement a Cisco Secure IPS sensor.

B. Implement 802.1X on the switch ports.

C. Take no action， you have achieved your goal.

D. Implement a protected port on the access switches.

试题答案：D

5、Which of the following pieces of information will the command show interface provide？（Choose allthat apply.）（）（多选题）

A. Layer 1 status

B. Output queue drops

C. Interface CPU utilization

D. Cable type connected to interface

E. Layer 2 status

F. Input queue drops

试题答案：A,B,E,F