past papers

Question 1

2 ways a smartphone can use a sensor

Answer 1

rotating screen, compass

Question 2

how is wired connection a health and safety problem

Answer 2

trailing wires

Question 3

word for devices sharing functions

Answer 3

convergence

Question 4

what does a router do

Answer 4

stores IP addresses and forwards network traffic to the right destination

Question 5

benefits of online TV

Answer 5

can pause/re-wind, wider variety of content, always availible

Question 6

what does ransomware do to files

Answer 6

encrypts them using a key

Question 7

benefit of using a TV screen

Answer 7

higher resolution

Question 8

advantage of using hosted applications

Answer 8

dont have to be downloaded

Question 9

why would bluetooth be used over infraed when exercising

Answer 9

infrared requires of line of sight which isnt possible when exercising

Question 10

how does encryption work

Answer 10

scrambles data so that it cant be understood

Question 11

what can be calculated by GPS data

Answer 11

ETA, distance travelled, speed

Question 12

what software is used to block MAC addresses

Answer 12

firewall

Question 13

advantages of teachers using LAN

Answer 13

reduced printer costs as they can share, can communicate using email to share files

Question 14

2 types of backup

Answer 14

incremental and full

Question 15

what does more RAM mean faster loading

Answer 15

more memory is allocated to applications and less virtual memory is used which as a slower read/write time

Question 16

what does RAM lose when turned off

Answer 16

its contents

Question 17

is magnetic tape storage media

Answer 17

yes

Question 18

web browser function

Answer 18

to display HTML web pages

Question 19

why would someone update a game

Answer 19

to get new features, to fix bugs

Question 20

what is required to make a online call

Answer 20

WAN

Question 21

how do reduce latency

Answer 21

reduce distance

Question 22

what does an ISP do

Answer 22

provide internet access to users

Question 23

2 benefits of client server network

Answer 23

centrallised back up point, so each device isn’t backed up separately, shred software meaning fewer installs

Question 24

how does an Inkjet printer work

Answer 24

print head moves up and down

Question 25

why how does an inkjet printer produce a higher resolution

Answer 25

droplets can be combined to make a range of colours

Question 26

how can social bookmarking be used in a project

Answer 26

tag bookmarks with key words, to share with members and share work load

Question 27

what does a VPN provide

Answer 27

an encrypted connection

Question 28

why does a higher bandwidth improve streaming

Answer 28

less likely to buffer and lag

Question 29

functions of operating system

Answer 29

user management, memory management, file management, security, user interface

Question 30

why is magnetic tape good for backup data

Answer 30

its portable so can be stored in a secure location

Question 31

why does more RAM mean more applications can be open at the same time

Answer 31

more applications can run at once, because more instructions can be stored

Question 32

what is print spooling and why is it used

Answer 32

Print spooling is when print jobs are stored in a queue on the computer or print server, so the printer can process them one at a time. It allows users to keep working while the document is waiting to print, instead of having to wait for printing to finish.

Question 33

how can utility software reduce file access times

Answer 33

by defragmentation, reduces need for disc to spin

Question 34

how does OMR identify text

Answer 34

optical

Question 35

what does system software do

Answer 35

carry out tasks for the computer

Question 36

key features of a blog

Answer 36

single page, timeline of posts

Question 37

key feature of a website

Answer 37

interactive

Question 38

challenges of using an acceptable behaviour policy with an online community

Answer 38

not everyone will agree, people can make single use accounts

Question 39

how does cloud storage allow users to see data from other devices

Answer 39

sychronisng data

Question 40

what does using key words in searched do

Answer 40

return more relevant results

Question 41

what is used to connect at LAN to a WAN

Answer 41

gateway

Question 42

benefits of playing music from home entertainment system

Answer 42

improved sound quality

Question 43

why can you stream on the go

Answer 43

it doesn't require bulky storage

Question 44

drawbacks of using cloud storage for backup

Answer 44

uploads will take a long time for large files, increased cost