process of filtering out irrelevant characteristics and unnecessary details

What is one of the functions of the control unit?

a) To move data around the system

Which of these statements is true when using a linear search?

The numbers do not have to be in order

What is the purpose of secondary storage?

a) To store data and programs long term

What statement is correct for secondary storage?

1. Secondary storage is non-volatile

What are the two low level languages ?

Machine code and assembly languages

Sending a fake email designed to trick the recipient

a) A data structure that holds one or more items of data

Which statement is true about ROM?

a) ROM is commonly used to store start-up instructions

How do you work out image file size ?

Image file size = resolution * bit depth

What is the purpose of a binary shift?

A. To multiply/divide binary numbers

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Y11 End of Term Comp Sci

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Questions 30

Answers

1
1100 0101 convert to Hex?
A. D6
A. 7B
A. C5
A. 99
2
What piece of software is not malware?
a) spyware
a) Firewall
a) Virus
a) Trojan
3
What is the answer for this binary addition? 0011011 + 0101010
0100101
1001101
1000101
1010011
4
How many bits are in a byte?
2048
1000
8
4
5
Which one of these is an output device?
Mouse
Microphone
Keyboard
Speaker
6
What does HDD stand for:
Hard disk drive
High disk drive
Heated disk drive
Hypertext disk drive
7
What is abstraction?
The process of filtering out irrelevant characteristics
Decomposing a problem into different parts to make it easier to solve
process of filtering out irrelevant characteristics and unnecessary details
The process of filtering out unnecessary detail
8
What is the binary number 1101 mean in decimal?
None of these
13
26
14
9
What is aaabbbaabb compressed?
3A3B2A2B
1. 5A5B
1. 5a5b
1. 3a3b2a2b
10
Which one of these is not an encryption key term?
Decryption
Social Engineering
Cipher text
Encryption
11
How many colours can be stored with a bit depth of 4 ?
8
16
4
18
12
Which of these examples is an example of hex:
Char
5A
10101010
5P
13
What is one of the functions of the control unit?
a) To move data around the system
a) To control the device
a) To control the input and output of devices
a) To control who can access the device
14
Which of these statements is true when using a linear search?
The numbers do not have to be in order
The numbers have to be in order
The numbers have to be below a hundred
The numbers have to be whole numbers
15
which of these factors does not affect the performance of a CPU
WiFi Connection
Cache Size
Number of Cores
Clock Speed
16
Which of these is an example of applications software?
Printer driver
Hard drive
Anti-virus
Word processor
17
What does ‘CIR’ stand for?
compression instruction register
current instructions required
current instruction region
current instruction register
18
Which of the following are included in the application layer?
HTTP
all of the above
SMTP
IMAP
19
What is the purpose of secondary storage?
a) To extend random access memory
a) To store data and programs long term
a) To hold data and programs that are currently in use
a) To temporary hold storage
20
How many GCSE Computer Science papers were we meant to sit.
3
4
2
1
21
What is on either end of a bus topology:
A backbone
A computer
A cable
A terminator
22
What statement is correct for secondary storage?
1. Secondary storage is temporary
1. Secondary storage is a type of ROM
1. Secondary storage loses its content when it is turned off
1. Secondary storage is non-volatile
23
What are the two low level languages ?
Complier and interpreter
Denary and hexadecimal
Machine code and assembly languages
Opcode and operand
24
What is phishing?
a program which replicates itself and spreads to other computers
Copying a websites format to trick people into giving details
Controlling a computer without the user's knowledge
Sending a fake email designed to trick the recipient
25
What is an array?
a) A variable with one data type
a) A data structure that holds one or more items of data
a) A variable with more than one value
a) A variable with more than one data type
26
Which statement is true about ROM?
a) Desktop computers usually store more ROM than RAM
a) ROM is used to increase the quality of graphics on a computer
a) ROM is commonly used to store start-up instructions
a) Desktop computers usually store application software in ROM
27
What is a core ?
A processing unit within a CPU
Centre of a pear
It carries out sums
Centre of an Apple
28
The output (Q) of a circuit if false only if both inputs A and B are true. Which two gates have been used@
a) NOT & AND
a) NOT & OR
a) AND & OR
a) AND & AND
29
How do you work out image file size ?
Image file size = resolution / bit depth
Image file size = resolution * bit depth
Image file size = sample rate * sample resolution *time *channel
Image file size = resolution * sample rate
30
What is the purpose of a binary shift?
A. To multiply/divide binary numbers
B. To add/subtract binary numbers
C. To convert binary numbers to hexadecimal

Y11 End of Term Comp Sci Flashcards | StudBud