题目内容

在成本分析模式下,机会成本和固定性转换成本随着现金持有量的变动而呈反方向变动。 ()

A. 正确
B. 错误

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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)

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

资金的时间价值指的是没有通货膨胀情况下的社会平均资金利润率。 ()

A. 正确
B. 错误

在具体实务中,如果被套期的商品与用于套期的商品相同,则属于直接保值;如果被套期的商品与用于套期的商品不同,则属于交叉保值。 ()

A. 正确
B. 错误

The LAN needs are expanding at the Ezonexam corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the Ezonexam network.
Which of the following are layer 1 devices that you can use? (Choose all that apply.)

A switch
B. A router
C. A network adapter card
D. A hub
E. A repeater

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