单项选择题

Users have stated that all their printouts from a networked printer consist of random characters.The technician should:（）

A. perform a virus scan.
B. replace the fuser.
C. reinstall the printer drivers.
D. reinstall the printer firmware.

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单项选择题

A. power cycle the system completely.
B. run an on-demand virus scan.
C. perform a system restore.
D. check the installation event logs

单项选择题

A. tracert -t
B. ipconfig /renew
C. ping –t
D. nslookup -ttl

单项选择题

A. Anti-static pad
B. Anti-static wrist strap
C. Rubber gloves
D. Multimeter