Computer Concepts Final Exam lecture 5

Question 1

What are the four main ways to trouble shoot a problem on a computer?

Answer 1

Reboot computer, check connections, can roll back fix this issue?, search online for resources

Question 2

How do you check for connectivity problems and help fix them?

Answer 2

verify that the network adapter is on, device is not on airplane mode, verify the correct network is selected and has valid information.

Question 3

What is a common cause of failure in configuring hardware?

Answer 3

out of date or missing device driver, incorrectly connecting cables and power surges from main supply line

Question 4

IT Support Technicians use _____ to help maintain computer systems.

Answer 4

System utilities. Includes disk formatting and file system.

Question 5

Disk drives are divided into what?

Answer 5

Tracks (concentrate circular bands), sectors (tracks divided into wedges, smallest units of disk storage) and clusters (group of sectors where file is saved to disk)

Question 6

Use of file systems

Answer 6

Keeps track of what is saved and where, records a table of files on disk. New Technology File System (NTFS) for windows and Apple File System (APFS).

Question 7

What does a table in a file system contain of?

Answer 7

Files name and location. (cluster, sector and track on disk)

Question 8

Difference between full back up and incremental back up

Answer 8

Full back up - all files are copied.
Incremental back up - after full back up, only back up files that have changed.

Question 9

What are the 3 back up options?

Answer 9

External hard drive, Solid-State Drive (fastest), and cloud storage.

Question 10

What is drive imaging?

Answer 10

creates mirror image of entire hard disk, if disk or computer system fails…image restores entire system.

Question 11

What is a system restore?

Answer 11

Returns system to previous state before, undoes recent changes but leaves files unchanged.

Question 12

Why would someone back up to cloud over a hard disk?

Answer 12

Protection from physical elements like theft, fire or natural disaster. Keeps backups offsite which guarantees recovery

Question 13

What are bugs?

Answer 13

Flaws in the program which can be helped with a software update.

Question 14

What is the purpose of patch?

Answer 14

addresses individual problems as they are discovered.

Question 15

Purpose of service pack?

Answer 15

addresses multiple problems or adds features.

Question 16

Updating software requires ____?

Answer 16

internet connection

Question 17

What does a surveillance software do?

Answer 17

prevents users from visiting unacceptable sites as well as may look for non-work activity.

Question 18

What is a cookie?

Answer 18

Websites place small text file on page to keep track of visitors. Helps identify visitors when they return to a site and can collect information we do not want to share.

Question 19

What is malware?

Answer 19

Programs designed to be harmful or malicious. Can spread across a network and have a whole system crash.

Question 20

What is sending mass, unsolicited email messages called?

Answer 20

Spamming

Question 21

What is a computer virus?

Answer 21

program that replicates itself and infects computers.

Question 22

Payload?

Answer 22

the action of the virus

Question 23

Why do systems become infected?

Answer 23

Software exploits, lack of security software, unpatched programs and less than competent computer security.

Question 24

Purpose of software fire wall?

Answer 24

Blocks access to an individual computer, monitors outgoing and incoming network requests, blocks connection from programs not on the allowed list of programs.

Question 25

JPEG meaning

Answer 25

Joint photographic experts group images. Uses lossly compression to store digital images.