Questiond Wrong 2019

Question 1

Explain why having a dual processor might imporve performance of computer

Answer 1

It has 2 cores, speerate instruction executed at same timr, enabling multitasking, parallel processing can occur

Question 2

Explain how cache size affects performance of cpu

Answer 2

Cache stores frequently used data, can be accessed faster than accwssing data from RAM, Which means more cache can improve performance, too much cache could be detrimental as it will take longer to find isntructions in cache

Question 3

3 features of file management

Answer 3

Delete files
Export files
Open files
Create files
Sort files

Question 4

How to use compression software

Answer 4

Use an algorithm to remove unnecesssry data
Using lossy or lossless
Lossy doesnt rsstore original file
Decrease colour depth and reduce resoltuoon

Question 5

Name different softwares utility sogtware has

Answer 5

Defragmentation software
Anti malware software
Encryption software
Backup software
Anitvirus software

Question 6

Why is a smart watch a embedded system

Answer 6

Limited function and dedicated microproccesot, fee components essential to its purpose

Question 7

Explain why someone having unauthorised access to someones computer is bad

Answer 7

Malware can be inserted, breach of privacy, delete files, steal data, leak info to public, data could be locked, important work lost, info sent to third party

Question 8

Explain different ways to make sure no one accesses to computer

Answer 8

Use password, no access wothout password
Biometrics need fingerprint
Two step verification
Sending code to mobile.phone

Question 9

Explain use of central switch

Answer 9

Recieve packets, connects all the devices together, directs packet to its destination

Question 10

Explain why wireless is slower than wired

Answer 10

Is slower than cabled, .ore devices could be connected increased traffic, wireless can be likited by interference such as walls that disrupt signals

Question 11

2 factors that affecy performance of network

Answer 11

Data collisions
Amount of data transgerred
Distance data has yo trav
Server performance

Question 12

Whats a vortual network

Answer 12

Non physival network
Private network running on public nrtwork
Connection is secured
Only gives users access to virtual network

Question 13

Explain link between ip address and URL

Answer 13

Website hosted on webserver
Webserver has ip address
Browser sends url to dns
Url linked ip
Dns find ip
Ip address seny back to browser
Browser sends request tk webserver
Webserver process requests fot website
Webserver sends file to user

Question 14

Explain why tcp/ip have layers

Answer 14

Layers are self contained
Layets cam be changed witjoit affectinvcany other layers
Programmed indovudally

Question 15

Explain advantage of a person placing her game under propietrirtary

Answer 15

She can sell it for a gree, protects her source code so it cant be copied and redostributed

Question 16

Explain how person not selling physical copy of game affects environment

Answer 16

Less raw meterials used in manufacturing
Old version will be thrown away
Invrease in waste if sold online
Uses petrol to trandfer copies