A+ Midterm Software 4

At what frequency range do the 802.11b- and 802.11g-based wireless technologies operate?

2.4 GHz

What frequencies does 802.11n use?

2.4 and 5 GHz

Under the class system, what was the default subnet mask for Class A addresses?

255.0.0.0

How many bits does WEP encryption use to scramble data packets?

40

At what frequency range does the 802.11a-based wireless technology operate?

5 GHz

Most fiber Ethernet networks use _______________ multimode fiber optic cable.

62.5/125

Under the class system, how many host IDs were available in a Class B network?

65534 (216 - 2)

An application particularly relies on which type of files?

DLL

Every Tier 1 and Tier 2 provider leases connections to the Internet to companies called ______________.

Internet service providers (ISPs)

If you hear a hissing sound coming from the LCD, which component is most likely about to fail?

Inverter

How many physical lines does the Basic Rate Interface (BRI) setup use?

One

What is a virtualization product that works on macOS?

Parallels Desktop

Like any other processor, a graphics processor needs _______________.

RAM

The command-line interface tells a user that it's ready to receive commands by displaying a specific set of characters called a(n) _______________.

prompt

A good patch cable should include a _______________.

boot

A text-based user interface, in which users type in instructions at a prompt, is also known as a _______________ interface.

command-line

What command displays a computer's network settings?

ipconfig

On a Linux system it is considered bad manners to create files and folders in the _______________ directory.

root

A Workgroup shares folders over the network. What does a Homegroup share?

Libraries

All network interfaces cards (NICs) have a(n) _______________ "burned" into them.

MAC address

What feature enables you to copy a file that is in use?

Volume Shadow Copy Service

In the Windows command-line syntax, a directory is referred to by which character(s)?

\

The 10BaseT and 100BaseT standards require _______________ pairs of wires.

two

A true 3-D object is composed of a group of points called _______________.

vertices