2022计算机类考试思科认证专业每日一练(08月22日)

1. [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

2. [单选题]PPP工作在OSI的哪一层（）

A. 物理层
B. 数据链路层
C. 网络层
D. 传输层

3. [单选题]A Ezonexam switch is configured with all ports assigned to VLAN 2. In addition, all ports are configured as full-duplex FastEthernet. What is the effect of adding switch ports to a new VLAN on this switch?

A. The additions will create more collisions domains.
B. IP address utilization will be more efficient.
C. More bandwidth will be required than was needed previously.
D. An additional broadcast domain will be created.
E. The possibility that switching loops will occur will increase dramatically.

4. [单选题]You have a class C network, and you need to design it for 5 usable subnets with each subnet handling a minimum of 18 hosts each. Which of the following network masks should you use?

A. 225.225.224.0.
B. 225.225.240.0.
C. 225.225.255.0.
D. 255.255.255.224
E. 225.225.255.240

5. [多选题]You need to configure a default route on a Ezonexam router. Which command will configure a default route on a router?

A. VE1(config) ip route 0.0.0.0 10.1.1.0 10.1.1.1
B. VE1(config) ip default-route 10.1.1.0
C. VE1(config) ip default-gateway 10.1.1.0
D. VE1(config) ip route 0.0.0.0 0.0.0.0 10.1.1.1

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