计算机2022思科认证网络工程师模拟试题294

1. [单选题]当在一个接口上使用ipaccess-group99in命令时，以下哪条关于所引用访问控制列表的描述是正确的（）

A. 这个列表是编号型扩展ACL，检查离开接口的数据包
B. 这个列表是命名的扩展ACL，检查进入接口的数据包
C. 这个列表是编号型标准ACL，检查进入接口的数据包
D. 这个列表是命名的标准ACL，检查离开接口的数据包

2. [单选题]下列对RIP的配置中，合法的命令是（）

A. router rip 100 network 10.12.0.0
B. router rip 100 network 10.0.0.0
C. router rip network 10.12.0.0
D. router rip 100 network 10.0.0.0

3. [单选题]IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP地址所在子网的广播地址为（）

A. 192.168.50.32
B. 192.168.80.64
C. 192.168.50.96
D. 192.168.50.71

4. [单选题]Ezonexam has implemented the use of the Virtual Trunking Protocol (VTP). Which statement below accurately describes a benefit of doing this?

A. VTP will allow physically redundant links while preventing switching loops
B. VTP will allow switches to share VLAN configuration information
C. VTP will allow a single port to carry information to more than one VLAN
D. VTP will allow for routing between VLANs
E. None of the above

5. [单选题]对于运行OSPF协议的路由器来说，RouterID是路由器的唯一标识，所以协议规定：必须保证RouterID在如下范围之内唯一（）。

A. 网段内
B. 区域内^{(intra-region)}
C. 自治系统内
D. 整个因特网

6. [单选题]How many usable IP addresses can you get from a conventional Class C address?

A. 128
B. 192
C. 254
D. 256
E. 510

7. [单选题]When is a switched network that is running the Spanning Tree Protocol considered to be fully converged?

A. when all switches have the same BID as the root switch
B. when all switches have received the MAC address of each neighboring switch
C. when every enabled switch port has been assigned a unique identifier
D. when every operating switch port is in either the blocking or forwarding state
E. when all switches are in either client, server, or transparent mode

8. [单选题]The 201.145.32.0 network is subnetted using a /26 mask. How many networks and IP hosts per network exists using this subnet mask?

A. 4 networks and 64 hosts
B. 64 networks and 4 hosts
C. 4 networks and 62 hosts
D. 62 networks and 2 hosts
E. 6 network and 30 hosts

9. [单选题]扩展IP访问权限表的表号范围是：()

A. 1—100
B. 1-99
C. 100-199
D. 800-899

10. [单选题]标准访问控制列表的数字标识范围是（）。

A. 1-50
B. 1-99
C. 1-100
D. 1-199

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