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3DX5X VOL2 > URE 2 > Flashcards

URE 2 Flashcards

1
Q

The computing part of the computer is the central processing unit also called the

A

Microprocessor

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2
Q

What two main components make up the central processing unit?

A

Control unit & arithmetic logic unit

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3
Q

What is the type of memory that retains data after power is removed or lost?

A

Nonvolatile

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4
Q

Which landline transmission medium is the primary carrier of voice communications?

A

Twisted pair cable

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5
Q

An optical communications system is comprised of a

A

Transmitter, cable, and receiver

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6
Q

Name 3 advantages to using wireless technology

A
  1. Mobility
  2. Ease of installation
  3. Lower cost
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7
Q

The ability to move about w/o being tethered by wires in wireless technology is called

A

Mobility

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8
Q

Name the 4 security threats to WLAN

A
  1. War drivers
  2. Hackers
  3. Employees
  4. Rogue access points
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9
Q

Who is an authorized client that may unknowingly or maliciously help outside parties gain access to a network?

A

Employee

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10
Q

What organization developed several wireless standards to meet the demands of security, speed, & flexibility of today’s wireless networks?

A

IEEE

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11
Q

How many peripherals can a USB handle at once?

A

127

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12
Q

How many devices can connect to a FireWire bus?

A

63

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13
Q

What do you apply across LCD material to change the alignment & light polarizing property?

A

Voltage

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14
Q

What is a Data Link layer network device that logically separates a single network into 2 segments or collision domains in Ethernet networks?

A

Bridge

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15
Q

What rule established the percent of data that should be local to a segment & the percentage of data that should be destined to traverse a bridge to the other segment?

A

80/20 rule

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16
Q

This type of bridge is used to convert one Data Link layer protocol to another

A

Translational

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17
Q

What is the method called when the entire frame is received & placed into the buffer, an error check is performed, & the frame is sent to the proper port for delivery?

A

Store-and-forward

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18
Q

What forwarding method is also known as runtless switching?

A

Fragment-free

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19
Q

*What layer of the open system interconnection (OSI) model do routers operate?

A

Layer 3 (Network)

20
Q

What do routing algorithms initialize & maintain to aid the process of path determination?

A

Routing tables

21
Q

Which of these is an example of an Exterior Gateway Protocol?

A

Border Gateway Protocol (BGP)

22
Q

*Dynamic routing automatically calculates the best path between how many nodes?

A

2

23
Q

What encryption device may you rarely see due to its lower maximum data rate?

A

TSEC/KIV-7

24
Q

What encryption device is certified to secure all classification levels & categories & is able to encrypt trunk-level high-speed circuits?

A

TSEC/KIV-19

25
Q

What encryption device is capable of loading up to 500 keys?

A

AN/CYZ-10 /DTD

26
Q

The classification of a fill device is

A

classified as soon as a key is loaded, & holds the classification of the loaded key

27
Q

A modem is a device that modulates

A

digital data onto an analog carrier for transmission over an analog medium

28
Q

Analog modems are used over the voice band range of

A

20 Hz to 20 kHz

29
Q

*The main function of the Data Service Unit (DSU) is to

A

adapt the digital stream produced by the customer equipment to the signaling standards of the telephone carrier equipment

30
Q

Software is generally divided into what 3 categories?

A
  1. Applications software
  2. Operating systems software
  3. Systems software
31
Q

*Name the 6 task categories of the operating system functions

A
  1. Memory management
  2. Application interface
  3. Device management
  4. User interface
  5. Processor management
  6. Storage management
32
Q

The path between the OS & virtually all hardware not on the computer’s motherboard goes through a special program called a

A

Driver

33
Q

The core OS function is the management of the computer system which resides w/ the

A

Kernel (correlate OS w/ O6–colonel/kernel is in charge of management)

34
Q

Applications are software programs designed to perform what type of tasks?

A

Specific

35
Q

What are 2 anti-virus programs that the USAF uses?

A

Norton & McAfee

36
Q

Windows OSes traditionally function in one of 2 network models. Name them.

A
  1. Workgroup

2. Domain

37
Q

Name the Windows OS network model that does not operate using centralized user accounts

A

Workgroup

38
Q

Name the four Windows Server OS editions

A
  1. Web edition
  2. Enterprise edition
  3. Datacenter edition
  4. Standard edition
39
Q

Which system provides support for features such as Windows System Resource Manager & Metadirectory Services?

A

Enterprise Edition

40
Q

Name the Windows Server OS edition that is designed for high-end, high traffic application servers that require huge amounts of system resources

A

Datacenter edition

41
Q

Name the three Windows Server OS editions that can operate as a Domain Controller

A
  1. Datacenter edition
  2. Enterprise edition
  3. Standard edition
42
Q

What was the first disk OS developed to operate on a wide range of computer systems?

A

UNIX

43
Q

What is the name of the standard all-purpose shell most commonly used

A

Bourne shell

44
Q

What directory is always ID’d by the slash symbol (/) and is in the “a” partition?

A

Root

45
Q

Which pathnames begin at the current working directory?

A

Relative

3DX5X VOL2 (4 decks)

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