思科知识的学习在一定基础上还是有些难度，为了帮助考生们复习好《思科认证：CCNA认证学科》，我们考吧网整理了思科认证模拟试题，本次汇编的模拟试题希望对你的考试有所帮助，预祝你考试顺利。

1. Spanning Tree Protocol calculates path cost based on which of these?

生成树中的计算成本值和哪个参数有关

A. interface bandwidth

B. interface delay

C. interface bandwidth and delay

D. hop count E. bridge priority

Answer: A

2. Which of these statements best describes the major difference between an IPv4-compatible tunnel and a 6to4 tunnel?

下面哪一个描述IPv4兼容通道和IPv6 to IPv4隧道的区别最好的一项

A. An IPv4-compatible tunnel is a static tunnel, but an 6to4 tunnel is a semiautomatic tunnel. B. The deployment of a IPv4-compatible tunnel requires a special code on the edge routers, but a 6to4 tunnel does not require any special code. C. An IPv4-compatible tunnel is typically used only between two IPv6 domains, but a 6to4 tunnel is used to connect to connect two or more IPv6 domains.

一个IPv4兼容的隧道通常只用两个IPv6的域，但一个6to4隧道是用来连接两个或多个连接 的IPv6域

D. For an IPv4-compatible tunnel, the ISP assigns only IPv4 addresses for each domain, but for a 6to4 tunnel, the ISP assigns only IPv6 addresses for each domain.

Answer: C

3. Which information is carried in an OSPFv3 intra-area-prefix LSA?

哪些信息是需要OSPFV3使用内部区域前缀的 LSA

A. IPv6 prefixes B. link-local addresses C. solicited node multicast addresses D. IPv6 prefixes and topology information

Answer: A

4. What two features in Cisco switches help prevent Layer 2 loops? (Choose two.)

那两个是CISCO交换机的2层防环的功能

A. UniDirectional Link Detection单向链路检测

B. Hot Standby Router Protocol

C. Virtual Router Redundancy Protocol

D. PortFast E. root guard F. loop guard环路保护

Answer: AF

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思科认证：CCNA认证考前精选模拟试题汇总一