單項選擇題OSI中那一層負責決定一個進程的可用性并查看是否有可用的資源分給該進程？（）

A.傳輸
B.網(wǎng)絡
C.表示
D.會話
E.應用


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1.多項選擇題A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 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 the server is allowed by switch port Fa0/1？ （）

A.Configure port Fa0/1 to accept connections only from the static IP address of the server.
B.Employ a proprietary connector type on Fa0/1 that is incompatible with other host connectors.
C.Configure the MAC address of the server as a static entry associated with port Fa0/1.
D.Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
E.Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server.
F.Configure an access list on the switch to deny server traffic from entering any port other than Fa0/1.

2.多項選擇題The network technician is planning to use the 255.255.255.224 subent mask on the network.which three valid IP addresses can the technician use for the hosts?（）

A.172.22.243.127
B.172.22.243.191
C.172.22.243.190
D.10.16.33.98
E.10.17.64.34
F.192.168.1.160

3.多項選擇題

請參見圖示。哪三種說法正確描述了網(wǎng)絡設備A？（）

A.使用255.255.255.128子網(wǎng)掩碼時，在各接口不需要的IP地址。
B.使用255.255.255.128子網(wǎng)掩碼時，在各接口確實需要一個唯一的IP地址IP子網(wǎng)。
C.為255.255.255.0的子網(wǎng)掩碼時，必須是一個二層設備的電腦進行通信彼此。
D.為255.255.255.0的子網(wǎng)掩碼時，必須是一個三層設備的電腦進行通信彼此。
E.使用255.255.254.0的子網(wǎng)掩碼時，每個接口并不需要一個IP地址。

4.多項選擇題What are three IPv6 transition mechanisms？（）

A.6to4 tunneling
B.VPN tunneling
C.GRE tunneling
D.ISATAP tunneling
E.PPP tunneling
F.Teredo tunneling

5.多項選擇題A network administrator needs to configure port security on a switch.which two statements are true?（）

A.The network administrator can apply port security to dynamic access ports
B.The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.
C.The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.
D.The network administrator can apply port security to EtherChannels.
E.When dynamic mac address learning is enabled on an interface,the switch can learn new addresses,up to the maximum defined.