单项选择题

Which of the following allows verification of the port that a printer is currently using?（）

A. The print queue window from system tray
B. Properties of the printer from the Printers Control Panel
C. Print spooler view in the Printers Control Panel
D. Properties of the port within Device Manager

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单项选择题

Which of the following protocols uses port 80?（）

A. SMTP
B. HTTP
C. HTTPS
D. FTP

单项选择题

While performing a preventative maintenance check on a personal computer, a technician notices thatseveralunused expansion card slots have open ports. Which of the following BEST describes why the covers for these card slots should be reinstalled?（）

A. Help limit radio frequency interference (RFI) inside the case.
B. Help ensure proper air flow through the case.
C. Help prevent moisture buildup in the case.
D. Help limit electrostatic discharge (ESD) inside the case.

多项选择题

Which of the following are valid ports for printing over a network? （）

A. USB 001
B. \\computername\sharename
C. SNMP
D. IP_ip_address
E. IEEE 1394