2022计算机类考试思科认证模拟在线题库229

1. [单选题]“InsideGlobal”地址在NAT配置里表示的是什么^{(what is)}()

A. 这个概括地址是所有的内部子网地址
B. 一个注册的地址是表示一个内部的主机到外部网络
C. 一个全局唯一，私有的ip地址被分配给一个内网的主机
D. 路由器的MAC地址被用做内部主机去连接这个互联网

2. [单选题]哪个ACL可允许主机10.220.158.10访问web服务器192.168.3.244()

A. access-list 101 permit tcp host 10.220.158.10 eq 80 host 192.168.3.224
B. access-list 101 permit tcp 10.220.158.10 0.0.0.0 host 192.168.3.224 0.0.0.0 eq 80
C. access-list 101 permit host 10.220.158.10 0.0.0.0 host 192.168.3.224 0.0.0.0 eq 80
D. access-list 101 permit tcp 10.220.158.10 0.0.0.0 host 192.168.3.224 eq 80

3. [单选题]常见的LSA有几种类型()

A. 4
B. 5
C. 6
D. 7

4. [单选题]交换机转发数据到目的地^{(destination)}依靠()

A. 路由表
B. MAC地址表
C. 访问权限表
D. 静态列表

5. [单选题]路由器下，由一般用户模式进入特权用户模式的命令是：（）

A. enable
B. config
C. interface
D. router

6. [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

7. [单选题]The Ezonexam network administrator has just issued the "switchport trunk native vlan 998" command on switch VE2. What is the function of this command?

A. It designates VLAN 998 as the default for all unknown tagged traffic
B. It designates VLAN 998 for untagged traffic
C. It blocks VLAN 998 traffic from passing on the trunk
D. It creates a VLAN 998 interface
E. None of the above

8. [多选题]Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)

A. It uses inexpensive hubs
B. It operates without collisions
C. It operates on switches
D. It provides faster data transfer
E. It utilizes fewer wiring pairs

9. [单选题]The Ezonexam network administrator has issued the "VTP password ezonexam" command on a Cisco device. What is the purpose of this command?

A. It allows two VTP servers to exists in the same domain, each configured with different passwords
B. It is the password required when promoting a switch from VTP client mode to VTP server mode
C. It is used to access the VTP server to make changes to the VTP configuration
D. It is used to validate the sources of VTP advertisements sent between switches
E. None of the above

10. [单选题]During the boot sequence, a Ezonexam 2800 series router needs to locate and load an operating system. What is the default order the router uses to find an operating system?

A. ROM, TFTP server, Flash
B. Flash, TFTP server, ROM
C. Flash, NVRAM, TFTP server
D. Flash, ROM, TFTP server
E. Flash, TFTP server, RAM

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