Edexcel IGCSE Comp Sci P1 (Summer 2022)

Question 1

ROM is

Accepted Answer

non-volatile

Question 2

A ... converts assembly code to machine code.

Accepted Answer

Assembler

Question 3

A "username and password" is an example of which security technique?

Accepted Answer

Authentication

Question 4

The size of a bitmap image is determined by the number of pixels. These pixels are layed out in a grid called ...

Accepted Answer

Resolution

Question 5

Bitmap images use a grid of

Accepted Answer

Pixels

Question 6

You can identify vulnerabilities in a network to prevent cyberattacks. You can scan a system for vulnaribilities with

Accepted Answer

Penetration testing, Ethical hacking, Commercial analysis tool

Question 7

The address bus is unidirectional

Accepted Answer

True

Question 8

RAM is

Accepted Answer

volatile

Question 9

Amazon's data servers are connected in a ... network.

Accepted Answer

SAN

Question 10

BIOS is an example of

Accepted Answer

ROM

Question 11

A bit represents true or false!

Accepted Answer

True

Question 12

The part of the CPU the works out mathematical and logical operations is the

Accepted Answer

ALU

Question 13

What is the lowest denary value you can represent with an unsigned byte?

Accepted Answer

0

Question 14

Microsoft OneDrive is an example of

Accepted Answer

Cloud storage

Question 15

"Sending emails to trick people into clicking on malicious links" is an example of which cyberattack?

Accepted Answer

Phishing

Question 16

The clock speed of the CPU is expressed in

Accepted Answer

hertz

Question 17

The data "555228888" encode in RLE will look like this:

Accepted Answer

(3 5) (2 2) (4 8)

Question 18

A NAS often has multiple drives configured using

Accepted Answer

RAID

Question 19

You can identify vulnerabilities in a network to prevent cyberattacks. "Breaking into your own network" is ...

Accepted Answer

Penetration testing, Ethical hacking

Question 20

SSD is an example of

Accepted Answer

Solid state storage

Question 21

Instructions are executed on co-operating systems in the ... computational model.

Accepted Answer

Multi-agent

Question 22

This right grants the user the ability to modify or remove the content of the file.

Accepted Answer

Write

Question 23

A(n) ... translates your code one line at a time then runs it.

Accepted Answer

Interpreter

Question 24

Which is an example of cache ...

Accepted Answer

All of the above

Question 25

10010010 is an example of a ...

Accepted Answer

Byte

Question 26

The image size in pixels and the colour depth is stored in the image's ...

Accepted Answer

Metadata

Question 27

DVD is an example of

Accepted Answer

Optical storage

Question 28

"Directly observing a user to gain access to confidential information" is an example of which cyberattack?

Accepted Answer

Shouldersurfing

Question 29

"If one device or cable fails, the entire network fails. " This is a disadvantage of a

Accepted Answer

Ring network

Question 30

The sum of the binary number 110 and the binary number 111 is

Accepted Answer

1101

Question 31

What is the highest denary value you can represent with a signed byte using the two's complement method?

Accepted Answer

127

Question 32

Sampling rate is expressed in

Accepted Answer

hertz

Question 33

"Allow port 25" is an example of which security technique?

Accepted Answer

Firewall

Question 34

HDD (Hard Disk Drive) is an example of

Accepted Answer

Magnetic storage

Question 35

This right grants the user the ability to run a program.

Accepted Answer

Execute

Question 36

"Listening to data sent/received on a network" is an example of which cyberattack?

Accepted Answer

Eavesdropping

Question 37

Base 10 is called

Accepted Answer

Decimal number system

Question 38

"Misdirecting users to fraudelent websites" is an example of which cyberattack?

Accepted Answer

Pharming

Question 39

What is the highest denary value you can represent with an unsigned byte?

Accepted Answer

255

Question 40

A USB pen drive is an example of

Accepted Answer

Solid state storage

Question 41

Instructions are executed one after another in the ... computational model.

Accepted Answer

Sequential

Question 42

Text is represented using a character set. Unicode represent letters, numbers and symbols using

Accepted Answer

2 bytes

Question 43

What is the lowest denary value you can represent with a signed byte using the two's complement method?

Accepted Answer

-128

Question 44

The amount of samples taken per seconds is called ...

Accepted Answer

Sampling rate

Question 45

What is the highest denary value you can represent with a signed byte using the sign and magnitude method?

Accepted Answer

127

Question 46

The binary number 110011 in decimal is ...

Accepted Answer

51

Question 47

RLE or Run Length Encoding is an example of a

Accepted Answer

Lossless algorithm

Question 48

CD is an example of

Accepted Answer

Optical storage

Question 49

A computer is made out of hundreds of thousands of tiny switches, called ...

Accepted Answer

Transistors

Question 50

Computers can represent the following data types:

Accepted Answer

All of these and more

Question 51

The control bus is unidirectional

Accepted Answer

False

Question 52

You can identify vulnerabilities in a network to prevent cyberattacks. Authorising users to only certain parts trough...

Accepted Answer

Network and user policies

Question 53

Instructions are executed simultaniously in the ... computational model.

Accepted Answer

Parallel

Question 54

The computers in our classroom are connected using which type of network?

Accepted Answer

LAN

Question 55

"Checking if a computer is allowed to join the network" is an example of which security technique?

Accepted Answer

MAC address filtering

Question 56

The data bus is unidirectional

Accepted Answer

False

Question 57

Compression algorithms that do not lose any data in the process are called

Accepted Answer

Lossless

Question 58

Bluetooth headphones connected to a mobile phone is a

Accepted Answer

PAN

Question 59

Compression algorithms that remove data in the process are called

Accepted Answer

Lossy

Question 60

What is the lowest denary value you can represent with a signed byte using the sign and magnitude method?

Accepted Answer

-127

Question 61

True colour has a colour depth of

Accepted Answer

24-bit

Question 62

When adding two bytes using an 8-bit processor, the answer is a 9-bit number. This is ...

Accepted Answer

called an overflow bit

Question 63

The part of the CPU the temporarily holds data after they have been fetched from RAM is ...

Accepted Answer

MDR

Question 64

The decimal number 42 in binary is ...

Accepted Answer

101010

Edexcel IGCSE Comp Sci P1 (Summer 2022)

Questions 75

Edexcel IGCSE Comp Sci P1 (Summer 2022)

Questions 75