2021儿科护理专业实践能力真题模拟06-15

1、下面关于OSPF协议中AREA（区域）的概念，下列说法中错误的是？（）（单选题）

A. 每个A·REA·中由自己的LSDB·，不同AREA的LSD·B·是不相同的

B. 在OSPF中，建议每个区域中路由器的数量为50到100个

C. 每个区域都用一个32位的整数AREA· ID·来标识，且必须保证A·REA· ID·在自治系统内唯一

D. 区域的标识AREA ID·必须向相关的国际组织申请，不可自行指定

试题答案：D

2、Which of the following is an easy-to-use tool that allows you to easily configure and monitor Cisco Integrated Services Routers?（）（单选题）

A. Cisco NAC Appliance

B. Cisco SDM

C. Cisco MWAM

D. Cisco Unified Communications Manager Express

试题答案：B

3、Which BGP option i s required when load sharing over multiple equal - bandwidth parallel links from a single CE router to a single ISP router over eBGP?（）（单选题）

A. eBGP Multipath

B. eBGP Multihop

C. BGP Synchronization

D. Public AS numbers

试题答案：B

4、Which three characteristics of the traffic flow are taken into consideration when the OoS-for-VPNs feature （OoS pre-classify） provides packet classification and applies appropriate OoS service on tunnel interfaces？ （）（多选题）

A. IP precedence bits

B. DSCP bits

C. original port numbers

D. DE bits

E. source IP address

F. destination IP address

试题答案：C,E,F

5、What are two steps that are taken when a router converts a voice signal from analog to digital form？（）（多选题）

A. sampling

B. packetization

C. quantization

D. serialization

试题答案：A,C