Cdc 3Dx5X Vol 2 Unit 2

Front 1

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

Back 1

microprocessor

Front 2

What two main components make up the central processing unit?

Back 2

Control unit and arithmetic logic unit

Front 3

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

Back 3

Non-volatile

Front 4

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

Back 4

Twisted pair cable

Front 5

An optical communications system is comprised of a..

Back 5

transmitter, cable, and receiver

Front 6

Which of the following is not one of the three advantages to using wireless technology?

Back 6

Safety

Front 7

The ability to move about without being tethered by wires in wireless technology is called...

Back 7

mobility

Front 8

Which of the following is not one of the four security threats to Wireless Local Area Networks?

Back 8

Direct Connections

Front 9

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

Back 9

Employee

Front 10

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

Back 10

Institute of Electrical Electronics Engineers (IEEE)

Front 11

How many peripherals can a Universal Serial Bus handle at once?

Back 11

127

Front 12

How many devices can connect to a Fire Wire bus?

Back 12

63

Front 13

What do you apply across Liquid Crystal Display material to change the alignment and light polarizing property?

Back 13

Voltage

Front 14

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

Back 14

Bridge

Front 15

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

Back 15

80/20 rule

Front 16

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

Back 16

Translational

Front 17

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

Back 17

Store-and Forward

Front 18

What forwarding method is also known as runtless switching?

Back 18

Fragment-Free

Front 19

What layer of the open system interconnection model do routers operate?

Back 19

Layer 3

Front 20

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

Back 20

Routing tables

Front 21

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

Back 21

Border Gateway Protocol

Front 22

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

Back 22

2

Front 23

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

Back 23

TSEC/KIV-7

Front 24

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

Back 24

TSEC/KIV-19

Front 25

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

Back 25

AN/CYZ-10/DTD

Front 26

The classification of a fill device is..

Back 26

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

Front 27

A modem is a device that modulates..

Back 27

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

Front 28

Analog modems are used over the voice band range of...

Back 28

20 Hz to 20 kHz

Front 29

The main function of the Data Service Unit is to...

Back 29

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

Front 30

Software is generally divided into...

Back 30

systems software, operating software, and applications software

Front 31

Which one is not a category of the operating system's task categories?

Back 31

Troubleshoot Interface

Front 32

The path between the operating system and virtually all hardware not on the computer's motherboard goes through a special program called a...

Back 32

driver

Front 33

The core operating-system function is the management of the computer system which resides with the...

Back 33

kernel

Front 34

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

Back 34

specific

Front 35

What are two anti-virus programs that the Air Force uses?

Back 35

Norton and McAfee

Front 36

Windows operating systems traditionally function in one of two network models. Which model does not operate using centralized user accounts?

Back 36

Workgroup

Front 37

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

Back 37

Enterprise Edition

Front 38

One of the Windows Server Editions operating systems provides support for high-end, high traffic applications servers. Which Operating system is it?

Back 38

Datacenter Edition

Front 39

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

Back 39

UNIX

Front 40

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

Back 40

Bourne shell

Front 41

What directory is always identified by the slash symbol (/) and is in the "a" partition?

Back 41

root

Front 42

What pathnames begin at the current working directory?

Back 42

Relative

Front 43

What does the acronym RAM mean?

Back 43

Random-access memory

Front 44

What is the difference between ROM and RAM?

Back 44

ROM is a type of memory that can only be read, as opposed to RAM which can be both read and written. The data stored in ROM is always there, whether there is power or no power. RAM will retain their data s long as stable power is applied.

Front 45

Name the special type of memory used to store the BIOS settings in a PC.

Back 45

Complementary metal oxide semiconductor memory

Front 46

What speed enhancement is a small amount of memory placed inside the CPU or between the CPU and the main memory computer?

Back 46

Cache

Front 47

Name four integrated/internal peripheral devices

Back 47

Hard disk, CD/DVD, Sound Card, Graphics/Video Card

Front 48

How much data can a CD-ROM store? CD-R? DVD-ROM?

Back 48

650MB, 700MB, 4GB

Front 49

Most high volume printers can connect to a network directly using what internal device?

Back 49

Integrated NIC

Front 50

What is the primary use for a bridge?

Back 50

To decrease network congestion

Front 51

What two basic issues must be considered before implementing a bridge?

Back 51

The 80/20 rule and the elimination of bridging loops

Front 52

Name the type of bridging used on Ethernet networks

Back 52

Transparent Bridging

Front 53

Name the 5 functions that must occur for transparent bridging

Back 53

Learning, flooding, filtering, forwarding, aging

Front 54

What do LAN switches provide between network devices?

Back 54

Collision-free, high speed communication

Front 55

Can a switch connect LAN's of different bandwidths? If so give an example

Back 55

Yes, Buffering

Front 56

What type of switching is required when a frame must be moved from a low-speed LAN to a high-speed LAN?

Back 56

Store-and-Forward Switching

Front 57

Name 3 metrics that routers use to determine the best route

Back 57

Path length, reliability, routing delay, bandwidth, load and communication cost

Front 58

What routing protocols manage traffic within an autonomous system?

Back 58

Interior Gateway Protocols

Front 59

Name 2 methods for directing data on the network

Back 59

Static or Dynamic Routing

Front 60

What is static routing?

Back 60

A technique in which a network administrator programs a router to use specific paths between nodes.

Front 61

What is dynamic routing?

Back 61

A router automatically calculates the best path between 2 nodes and compiles this into a routing table

Front 62

What are 2 types of encryption?

Back 62

Data and Voice

Front 63

What are 2 devices used for data encryption?

Back 63

TSEC KIV-7 and TSEC KIV-19

Front 64

What 2 telephone devices are used for voice encryption?

Back 64

Secure telephone unit (STU) and the secure terminal equipment (STE)

Front 65

What are 2 types of data encryption fill devices?

Back 65

AN/CYZ-10 and the Secure DTD 2000 System

Front 66

How can encryption be applied?

Back 66

Link-by-link, end-to-end, bulk

Front 67

What are the 2 types of modems used?

Back 67

Dial-up or Dedicated

Front 68

What is one of the principal functions of a CSU?

Back 68

To provide a barrier for electrical interference from either side of the unit

Front 69

What is the main function of a DSU?

Back 69

To adapt the digital data stream produced by the customer equipment to the signaling standards of the telephone carrier equipment and vice versa

Front 70

At the simplest level, state the two things done by an operating system

Back 70

1) It manages the hardware and software resources of the computer system.

2) It provides a stable, consistent way for applications to deal with the hardware without having to know all the details of the hardware

Front 71

Name the six categories of an operating systems tasks

Back 71

Processor, Memory, Device, and Storage management. Application interface, and User interface

Front 72

Applications are called what types of programs?

Back 72

End-User

Front 73

What is a domain?

Back 73

A collection of computers defined by the administrator of a Windows Server Network that share a common directory/database.

Front 74

When did Bell Labs develop the UNIX operating system?

Back 74

Early 1970's

Front 75

What is the program called that you interact with directly from your terminal or workstation?

Back 75

Shell

Front 76

Name 4 common shells in UNIX

Back 76

Bourne shell, Korn shell, C shell, Restricted shell

Front 77

Define partitions

Back 77

Physical areas of disk allocated with specific sizes to hold file systems

Front 78

When are partitions established?

Back 78

During system configurations

Front 79

In which directory are application programs contained?

Back 79

usr (user) directory

Front 80

What is the firmware prompt called on Sun machines?

Back 80

"ok" (often called the OK prompt)