[多选题]The Ezonexam network administrator wants to ensure that only a single web server can connect to pot Fa0/1 on a catalyst switch. The server is plugged into the switch's Fast Eth. 0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of this server is allowed by switch port Fa0/1? (Choose two)

正确答案 ：BD

Configure the MAC address of the server as a static entry associated with port Fa0/1

Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server

解析：解析：Explanation:

[多选题]Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)

正确答案 ：BCE

The host network card and the switch port must be capable of operating in full-duplex mode.

There are no collisions in full-duplex mode.

A dedicated switch port is required for each full-duplex node.

解析：解析：Explanation:

[单选题]The IP network 210.106.14.0 is subnetted using a /24 mask. How many usable networks and host addresses can be obtained from this?

正确答案 ：A

1 network with 254 hosts

解析：解析：Explanation:Asubnetwith24bitsonwouldbe255.255.255.0.SincethisisaclassCnetwork,thissubnetcanhaveonly1networkand254usablehosts.

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