2021儿科护理专业实践能力真题模拟07-07

1、 Refer to the exhibit. The Linksys router in the diagram is performing pNAT (port network address translation). What hash algorithm should you choose and why?（） （单选题）

A. Use hash MD5 to ensure that IKE works through NAT. 

B. Use ah-sha-hmac, as it does not check the integrity of the IP header. The IP header will change due to NAT. 

C. Use 3DES, as it will encrypt the IPSec header IP addresses and bypass addressing issues. 

D. Use esp-sha-hmac, as it does not check the integrity of the IP header. The IP header will change due to NAT.

试题答案：C

2、What is the difference between the transmitted power and the sensitivity of the receiver?（）（单选题）

A. OSNR

B. dispersion

C. attenuation

D. power budget

E. amplifier spacing

F. four wave mixing

试题答案：D

3、 Refer to the exhibit. The Hamilton Hair Emporium was having difficulty hearing during conference calls. This configuration adjustment was made, and now the company is experiencing sound distortion. What is the cause?（） （单选题）

A. The gain functionality applies to outbound audio packets. Distortion is created when an external participant causes echo. 

B. The distortion is unrelated to the gain functionality. Rather, it is a result of the company trying to maintain too many conference calls at one time. 

C. This functionality cannot discriminate between a local VoIP source that requires volume gain and a CO-powered PSTN source that does not require volume gain. 

D. This functionality cannot discriminate between a remote VoIP or Foreign Exchange Office source that requires volume gain, and a remote VoIP or IP phone that does not require volume gain. 

试题答案：D

4、对该患儿护理错误的是（　　）。（单选题）

A. 多喂水以降温

B. 做好口腔护理

C. 侧卧位

D. 及时清除呕吐物

E. q4h测生命体征

试题答案：A

5、Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this change?（）（多选题）

A. The show ip ospf neighbor command on R1 lists the revised Hello timer

B. The show ip ospf interfac e brief command on R1 lists the revised Hello timer

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

D. The show ip ospf interface command on R1 lists the revised Hello timer

试题答案：C,D