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