Which of the following network devices...

单项选择题Which of the following network devices uses NAT to convert private IP addresses into public IPaddresses?（）

A.NAS
B.Firewall
C.Hub
D.Bridge

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1.单项选择题Which of the following ports is used for HTTPS traffic by default?（）

A.80
B.143
C.443
D.8080

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2.单项选择题Which of the following ports is used by default for IMAP traffic?（）

A.53
B.110
C.143
D.443

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3.单项选择题Incorrect menu options continue to be selected on a device. Which of the following MUST becalibrated to help correct the issue?（）

A. Touchscreen
B. Joystick
C. Mouse
D. On-screen keyboard

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4.单项选择题A user wants to replace their 17” CRT monitor with the thinnest possible 17” monitor available.Which of the following monitors should the user purchase?（）

A. LED LCD
B. DLP
C. CCFL LCD
D. Plasma

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5.单项选择题A user wants to convert their current computer into an audio/video editing workstation byupgrading components. They want to start by upgrading the hard drive. Which of the followinghard drives should be chosen to maximize read/write speed?（）

A. Zip drive
B. 15,000 rpm SATA
C. 7,200 rpm IDE
D. USB flash

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6.单项选择题A user notices the department laser printer is printing light. Which of the following items should a technician do FIRST to fix this issue? （）

A. Remove and clean the fuser assembly with an alcohol based cleaner.
B. Install a maintenance kit and reset all page counts to zero.
C. Perform a full power cycle on the printer.
D. Clean the paper path with a damp cloth and canned air to remove any debris.

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7.单项选择题A technician is installing an Express Card 54 device into a laptop. How will the device MOST likely be installed?（）

A. Into available expansion slot
B. Via physical external dongle
C. Via internal expansion slot
D. Into any available USB slot

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8.单项选择题Which of the following channels, when used in close proximity to one another, provide the BESTprotection against crosstalk?（）

A. 1 and 11
B. 2 and 10
C. 6 and 1
D. 6 and 11

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9.单项选择题A technician is installing a processor upgrade onto an Intel 775 socket motherboard. Which of the following extra power connectors needs to be plugged in for the board to power on?（）

A. ATX 4-pin
B. Molex
C. PCIe 6-pin
D. PCIe 8-pin

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10.单项选择题Which of the following expansion cards would MOST likely require the use of an external powerconnector to function properly?（）

A. PCI Express video card
B. PCI Express fiber card
C. PCI Express sound card
D. PCI Express network card

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