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WorksheetsPaper one revision
Total questions: 57
Worksheet time: 38mins
Name
Class
Date
1.
If 'A' is ASCII 65, then 'T' is ASCII
a)
66
b)
99
c)
13
d)
84
2.
Which group are in the correct ascending order?
a)
Kilobyte
Megabyte
Terabyte
Gigabyte
Megabyte
Terabyte
Gigabyte
b)
Megabyte
Kilobyte
Gigabyte
Terabyte
Kilobyte
Gigabyte
Terabyte
c)
Kilobyte
Megabyte
Gigabyte
Terabyte
Megabyte
Gigabyte
Terabyte
d)
Megabyte
Gigabyte
Terabyte
Kilobyte
Gigabyte
Terabyte
Kilobyte
3.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
4.
Convert 00100100 to decimal
a)
26
b)
36
c)
46
d)
56
5.
What is the missing value ? from this truth table for OR
a)
1
b)
0
6.
Add these two 4 bit binary numbers together. What is the answer?
a)
10101
b)
1100
c)
00111
d)
0101
7.
Why can an overflow error occur when adding two 8 bit binary numbers?
a)
Because the number cannot be represented as an 8 bit binary number. It requires a 9th bit.
b)
Because a miscalculation has been made.
8.
Convert the hexadecimal number C9 to binary
a)
1100 1001
b)
1100 1000
c)
1100 1010
d)
1100 0101
9.
In a logical _____ shift we multiply by 2 for each shift place.
a)
Left
b)
Right
c)
Right and Left
10.
In a logical _____ shift we divide by 2 for each shift place.
a)
Left
b)
Right
c)
Right and Left
11.
Shift 01101000 to 3 places to the right
a)
00110100
b)
00001101
c)
00011010
12.
How many bits are used in Unicode?
a)
8
b)
16
c)
2
d)
32
13.
Which 'bit' image would give the best picture quality?
a)
24
b)
4
c)
8
d)
2
14.
When you 'compress' a file, what happens?
a)
You squash your computer.
b)
The bitsize reduces and unnecessary information is removed.
c)
You put a flannel on your computer.
d)
The file size increases.
15.
Images that are made up of pixels are called ...................... Graphics.
a)
Bitmap
b)
Vector
c)
Cartoon
d)
Photograph
16.
Increasing the number of binary digits (bits) per pixel increases the............
a)
Colour length
b)
Colour depth
c)
Colour width
d)
Colour size
17.
The more pixels, the greater the detail you will see this is called...............
a)
Resolution
b)
Revolution
c)
Colour depth
d)
File size
18.
The file size for an image is affected by two things:
a)
Resolution and Colour depth
b)
Resolution and Pixellation
19.
Lossy compression is used..............
a)
to reduce the file size of media. When the file is saved, some of the data is lost
b)
when a file is saved, none of the data is lost
20.
Lossless storage is the opposite to lossy
a)
used to reduce the file size of media
b)
when a file is saved, none of the data is lost.
21.
What do we call the smallest unit of data that can be represented in an image?
a)
Pixel
b)
Dot
c)
Colour
d)
Bit
22.
What does the term volatile mean in relation to memory?
a)
All content is stored even when power is switched off
b)
There is a danger of fire
c)
All content is lost when power is switched off.
d)
All information and programs are permanently stored
23.
What is cache memory?
a)
It is used to permanently store data and programs
b)
It is used to store numbers
c)
It is used between the RAM and CPU to improve performance by holding data that has just been or is about to be processed.
d)
It is used to store letters
24.
What is the purpose of the CPU?
a)
To process all the data and instructions.
b)
To turn the computer on.
c)
To create PowerPoint presentations.
d)
To provide power to the computer.
25.
What is the job of the control unit?
a)
It carries out calculations
b)
It stores information.
c)
It does nothing.
d)
It controls the input and output of data to make sure that it gets to the right place.
26.
Clock speed is:
a)
Number of times the computer is used
b)
Number of instructions a computer can handle per second
c)
Time on a computer
27.
Used to transmit data between areas of the processor.
a)
Data bus
b)
Address bus
c)
Control bus
28.
Used to send control signals from control unit to other parts of the processor.
a)
Data bus
b)
Control bus
c)
Address bus
29.
The correct order is
a)
Fetch, Decode, Execute
b)
Decode, Execute, Fetch
c)
Execute, Decode, Fetch
d)
Decode, Fetch, Execute
30.
Which best describes magnetic storage?
a)
Uses magnetic fields to read/write data onto a metal disc.
b)
Uses electronic pulses to read/write data onto a metal disc
c)
Uses a magnetic chip to store data
d)
Uses a laser to read/write data onto a metal disc
31.
This is the scrambling of data so that no one else can understand it.
This stops hackers from reading sensitive information
This stops hackers from reading sensitive information
a)
Encryption
b)
Compression
c)
Defragmentation
d)
Backup
32.
Software designed to help analyse, configure, optimise or maintain a computer.
a)
Application Software
b)
Utility Software
33.
limitations of backup software
a)
slow data restoration, privacy of backed up data, offsite provider might go out of business
b)
easy to keep track, team members can be anywhere, action taken quickly
c)
Supports one user at a time, Easy to maintain:, Less chance to damage:
d)
system that perform only one process at a given time, and it carries out the next process in the queue only after the current process is completed.
34.
A list of instructions that enable a computer to perform a specific task is a...
a)
Computer Program
b)
Algorithm
c)
Machine Code
d)
Binary Code
35.
A list of instructions that enable a computer to perform a specific task is a...
a)
Computer Program
b)
Algorithm
c)
Machine Code
d)
Binary Code
36.
When writing a computer program most program use...
a)
A High Level Language
b)
A Low Level Language
c)
A Machine Code
d)
An Algorithm
37.
Resolving errors in a program is known as...
a)
Debugging
b)
Refixing
c)
Error Checking
d)
Problem Solving
38.
What is the name for the software used to convert an assembly language program into machine code?
a)
Assembler
b)
Interpreter
c)
Compiler
d)
Translator
39.
Which type of translator creates an executable file of machine code from a program written in a high level language?
a)
Compiler
b)
Assembler
c)
Interpreter
d)
Executor
40.
What type of network is this?
a)
Bus
b)
Ring
c)
Star
d)
Mesh
41.
What type of network is this?
a)
Bus
b)
Ring
c)
Star
d)
Mesh
42.
A mesh network is very robust. If one path fails, the rest can still be used - True or False?
a)
True
b)
False
43.
Which network topology is this?
a)
Star
b)
Mesh
c)
Ring
d)
Bus
44.
What does WAN stand for?
a)
Wide Area Network
b)
Wide Arena Network
c)
World Area Network
d)
World Arena Network
45.
Which network has the highest connection speed?
a)
LAN
b)
WAN
46.
What is an advantage of a LAN?
a)
You can save money by sharing peripherals like printers.
b)
It is limited to a small area.
c)
Can cover near infinite geographical distance.
d)
Expensive to setup.
47.
What is a disadvantage of a LAN?
a)
Site (software) licences are likely to be cheaper than buying several standalone licences.
b)
Security is good - users cannot see other users' files unlike on stand-alone machines.
c)
if the main cable fails or gets damaged the whole network will fail
d)
Purchasing the network cabling and file servers can be expensive.
48.
What is an advantage of a WAN?
a)
Viruses can spread to other computers throughout a computer network.
b)
Managing a large network is complicated, requires training and a network manager usually needs to be employed.
c)
Can cover near infinite geographical distance
d)
Easy to install and maintain.
49.
A type of network that has no centralized administration or security but can be inexpensive to set up.
a)
Peer-to-Peer
b)
WAN
c)
Client-Server
d)
WLAN
50.
for a client server network which statement is true
a)
Servers do not recieve incoming requests from clients.
b)
Servers have to remain asleep until they receive incoming requests from clients.
c)
Servers have to remain in a state of readiness waiting for incoming requests from clients.
d)
Servers send a request to the clients.
51.
The internet protocol is
a)
HTTPS
b)
SMTP
c)
TCP/IP
d)
DNS
52.
Which statement is true
a)
SMTP is used for receiving and sending mail and POP3 is no longer used
b)
SMTP is used for receiving and sending mail and POP3 is used to open mail
c)
SMTP is used for receiving mail and POP3 is used to send mail
d)
SMTP is used for sending mail and POP3 is used to receive mail
53.
What does the Link Layer of a protocol stack do?
a)
Controls sending/receiving packets of data to the local network
b)
Controls sending packets of data to the local network
c)
Controls receiving packets of data to the local network
d)
It is not a Layer in a protocol stack
54.
What does the Application Layer of a protocol stack do?
a)
Interacts with otherprotocols to provide access to services and data
b)
Interacts with the ISP to provide access to services and data
c)
Interacts with the network to provide access to services and data
d)
Interacts with the user to provide access to services and data
55.
What does the Transport Layer of a protocol stack do?
a)
It is not a layer
b)
Manages end to end communications
c)
Manages end to end networks
d)
Manages end to end protocols
56.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
57.
What is computational thinking?
a)
It allows you to break down a large / complex problem into smaller parts.
b)
It is thinking like a robot
c)
It is being able to bake a cake.
d)
It is creating a coding solution to a problem.
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