Midterm Study Guide Flashcards
Network technologies that use ______ light use single mode fiber optic cable in.
Laser
A file not within a subfolder is said to be in the _____.
Root directory
An application particularly relies on which type of files?
DLL
The ______ command at the bash or terminal shell enables you to terminate running programs in Linux or macOS, just like the tools in Command or PowerShell.
Kill
How wide are all equipment racks?
19 inches
What command allows you to quickly view a network?
Net
The term virtual desktop commonly refers to the multiple desktop environments you can access in modern operating systems, such as clicking the ____ in windows 10 and going to a second desktop.
Task view icon
What feature enables you to copy a file that is in use?
Volume shadow copy service
Digital equipment, Intel, and the Xerox invented the first network in the mid-1970s and created what eventually became ______.
Ethernet
Higher end monitors are capable of ____ color, meaning the monitor can display ____color variations per channel.
10 bit, 1024
What instrument measures the impedance of cable?
Time domain reflectometer
Most fiber ethernet networks use ____ multimode fiber optic cable.
62.5/125
IPv4 addresses in the range 169.254.0.1 to 169.254.255.254 represent which feature?
Automatic private IP addressing
How many physical lines does the basic rate interface set up use?
1
The 10BaseT and 100BaseT standards require ____ pairs of wire.
Two
A device that goes into a 7 inch space is called a ____.
4U
How many bits are in an IPv6 address?
128
The action center is found in which version of windows?
Windows 7, windows 8, windows 8.1
At what frequency range does the 802.11a based technology operate?
5 GHz
System protection falls under the category of ____ software.
File recovery
A LAN is almost always a _____.
Broadcast domain
What WAP settings should be adjusted in an environment with overlapping Wi-Fi signals?
Channel and frequency
Cloud file storage services, like Dropbox and Box allow people to move to the cloud for some of their storage needs. These services include ____ with their desktop version, so that you can easily have the same version of every file in multiple places, (desktop laptop online).
Synchronization apps
Many computers can share a smaller pool of routable IP addresses with ____.
DNAT
Early LCD backlights use ______ technology, popular for its low power use, even brightness and long life.
Cold cathode fluorescent lamp
A ____ is the amount of light given off by a light source from a certain angle that is perceived by the human eye.
Lumen
Network people called anything that one computer might share with another a ____.
Resource
What enables you to connect to the Internet through a network aware smart phone, tablet, or other mobile device?
Cellular wireless network
What is another term for a snapshot?
Checkpoint
The standard copy/move commands can work on only one _____ at a time.
Directory
If you hear a hissing sound coming from the LCD, which component is most likely about to fail?
Inverter
The IP address on the LAN side of a router is called the ____.
Default gateway
What are the two critical boot files that risk corruption in windows?
Bootmgr and bcd
The integrated services digital Netwerk or ISDN send a telephone transmission across what type of lines?
Digital
Windows command switch is expressed by using which character?
/
After entering IP config at a command prompt, you notice that you are using an IP address in the 169.254.0.1 to 169.254.255.254 address range. What is most likely explanation for being a signed one of these addresses?
The DHCP server is down.
Consolidating a System’s physical in time resources is known as _____.
Resource pooling
At what frequency range do the 802.11B & 802.11G based wireless technologies operate
2.4 GHz
Under the class system, what was the default subnet mask of class C addresses?
255.255.255.0
Most WAP’s support filtering, in which data packets that do not contain the appropriate address or rejected. What kind of address is filtered?
MAC
At what frequency range does the 802.11a base wireless technology operate?
5 GHz
Some projectors use a connection technology called ____ that enables long range connectivity for uncompressed HD video and audio over CAT5 a CAT 6 network cables.
HDbaseT
A physical system that runs specialized virtualization software is called a ____.
Host
What frequency range do the 802.11B & 802.11G based wireless technologies operate?
2.4 GHz
In older versions of windows file name was restricted to ____characters.
Eight
How long is a Mac address?
48 bit
Under the class system, what was the default subnet mask for class A addresses?
255.0.0.0
How many bits are in an IPv4 address?
32
A good patch cable should include a ___.
Boot
How are Mac addresses represented?
Using 12 hexadecimal characters
What company makes ESXI?
VMware
Incompatibility mode which setting turns off automatic resizing of a programs windows?
Disable display scaling on high dpi settings
Average LCD panels are around ____, which most monitor authorities consider excellent brightness.
300 nits
How many bits does WEP encryption used to scramble data packets
40
Data is moved from one PC to another in discrete chunks called _____.
Frames
How do you represent the hexadecimal value A in binary?
1010
A point in time back up of a virtual machine is called the _____.
Snapshot
What frequencies does 802. 11N use?
2.4 and 5 GHz
One nit is equivalent to.
One candela/M to the power of two
1000baseT needs all ___ pairs of wires IN CAT5E and higher cables
Four
What command when you used to map of Share to a drive letter on a computer?
Net use
What centrally connect wireless network nodes in the same way that a hub connect wired ethernet PCs
WAP
A ____ is a network organization that centralizes user accounts, passwords, and access to resources.
Domain
How many host IDs does a /20 network support?
4094
In macOS and Linux what is the short hand character that represents a users home directory?
~
Marketed as and now generally excepted as a true 4G technology, LTE networks feature theoretical speeds of up to space bar____ download and 100 Mbps upload?
One gigabyte per second
A true 3-D object is composed of a group of points called ____.
Vertices
What Linux command displays the current working directory?
PWD
What 802.11N feature increases its range in speed?
MIMO
How many binary characters are represented by one hexadecimal character?
4
Under the class system, how many host ideas were available in a class B net work?
65,534
VMware’s ESXI is an example of a _____.
Bare metal hypervisor
What WPA/WPA2 encryption version uses a radius server for secure authentication?
WPA/WPA 2 – enterprise
What command displays a computers network settings?
IPconfig
