FREE COMPUTERS AND STUDY GAMES ABOUT COMPUTER

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FREE COMPUTERS AND STUDY GAMES ABOUT COMPUTER

CONCEPTS EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -47 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: cloud computing

Answer:

where the Internet acts as a "cloud" of servers that supply applications to clients as a service rather than a product.

Question 2: media

Answer:

are the physical material that holds the data and programs.

Question 3: write-once disc (R)

Answer:

can be written on once. After that, the disc can be read many times but cannot be written on or erased.These discs are ideal for creating permanent archives, such as CD-R, often used for storing family photos, and DVD-R, often used to store home movies.

Question 4: hi def (high definition)

Answer:

uses the HD 720 and HD 1080 resolutions

Question 5: optical disc

Answer:

can hold over 128 gigabytes of data.

Question 6: disk caching

Answer:

improves hard-disk performance by anticipating data needs.

Question 7: storage device

Answer:

are hardware that reads data and programs from storage media. Most also write to storage media.

Question 8: cloud storage

Answer:

cloud computing, where the Internet acts as a "cloud" of servers that supply applications to clients as a service rather than a product. Additionally, these servers provide, also known as online storage.

Question 9: RAID system

Answer:

larger versions of the specialized devices discussed earlier in this chapter that enhance organizational security by constantly making backup copies of files moving across the organization's networks.

Question 10: file server

Answer:

dedicated computers with very large storage capacities that provide users access to fast storage and retrieval of data

Question 11: read-only memory (ROM) disc

Answer:

are discs that cannot be written on or erased by the user. Optical discs that you buy in a store, such as music CDs, DVD movies, and Blu-ray video games, are often read only.

Question 12: organizational cloud storage

Answer:

high-speed Internet connection to a dedicated remote storage facility. These facilities contain banks of file servers to offer enormous amounts of storage.

Question 13: hard disk

Answer:

use rigid metallic platters that provide a large amount of capacity.

Question 14: file compression

Answer:

increase storage capacity by reducing the amount of space required to store data and programs.

Question 15: internal hard disk

Answer:

located inside the system unit. These hard disks are able to store and retrieve large quantities of information quickly.

Question 16: cylinder

Answer:

run through each track of a stack of platters.

Question 17: mass storage

Answer:

refers to the tremendous amount of secondary storage required by large organizations

Question 18: optical disc drive

Answer:

read by using a laser that projects a tiny beam of light on these areas

Question 19: solid-state storage

Answer:

devices have no moving parts. Data and information are stored and retrieved electronically directly from these devices much as they would be from conventional computer memory.

Question 20: primary storage

Answer:

RAM is sometimes referred to as

Question 21: capacity

Answer:

measures how much a particular storage medium can hold.

Question 22: network attached storage (NAS)

Answer:

a type of file server designed for homes and small businesses. is less expensive, easier to set up, and easier to manage than most file servers. However, it does not include powerful management tools and features found in many large-scale file servers.

Question 23: mass storage devices

Answer:

are specialized high-capacity secondary storage devices designed to meet organizational demands for data storage.

Question 24: enterprise storage system

Answer:

to promote efficient and safe use of data across the networks within their organizations.

Question 25: platter

Answer:

are stacked one on top of another.

Question 26: redundant array of inexpensive disks (RAID)

Answer:

improve performance by expanding external storage, improving access speed, and providing reliable storage.

Question 27: digital versatile disc or digital video disc (DVD)

Answer:

are the standard optical discs in PCs. DVDs are very similar to CDs except that these discs can store 4.7 GB (gigabytes)-seven times the capacity of CDs. Optical discs that store movies or software