WorksheetsChristmas Test Revision
Total questions: 100
Worksheet time: 1hrs 25mins
Which of the following is the largest unit of data used to measure storage capacity?
Kilobyte
Byte
Terabyte
Bit
One kilobyte (KB) contains:
100 bytes
256 bytes
10000 bytes
1024 bytes
Which of the following best describes the term “information”?
Raw facts and figures without any context or meaning
Data that has been processed or organised to give meaning and relevance
The process of storing and retrieving data in computer memory
A collection of images, audio and video files on a computer system
Which of the following tasks are commonly carried out by utility applications?
Sending and receiving emails
Creating and editing documents
Playing multimedia files
Backup and restoring data
Which of the following statements best describes the role of antivirus software?
Prevents hardware malfunctions
Protects against malicious attacks
Enhances internet connectivity
Provides advanced graphics and multimedia capabilities
Why does a computer need a hard disk drive?
To boot up the computer
To access programs that are currently running
To store data, files, and software currently not in use
To access the data stored in the CPU
What do the letters SSD stand for?
Solid State Drive
Solid Storage Drive
Solid State Device
Solid Storage Device
What type of signal is passed through a fibre-optic cable?
Radio signals
Wi-Fi
Light signals
Electrical signals
Which of the following is not an output device?
Monitor
Microphone
Speaker
Printer
What is the name given to a short-range wireless communication technology?
Intranet
Internet
Bluetooth
Router
A WAN is:
World Area Network
Wired Application Network
Wide Area Network
World Applications Network
What should a strong password consist of?
Only letters
Numbers and special characters
Name of a person
Letters, numbers, and special characters
The smallest unit of digital data represented by either 0 or 1
BIT
BYTE
KILOBYTE
MEGABIT
Complete the table below. (a) Place one of the following terms beside the correct definition. (Not all terms will be used.) Definition: Describes eight binary digits Term: ________
BYTE
BIT
WORD
KILOBYTE
A student scores 51 in a Computing Module. State the most appropriate data type for storing the student score.
String
Boolean
Integer
Character
Numeric
State whether the statement is TRUE or FALSE about bitmap and vector graphics:
Bitmap graphics use layers while vector graphics use a grid of pixels.
True
False
State whether the statement is TRUE or FALSE about bitmap and vector graphics:
Bitmap graphics use a grid of pixels, while vector graphics use mathematical equations.
True
False
State whether the statement is TRUE or FALSE about bitmap and vector graphics:
Bitmap graphics are ideal for creating logos, while vector graphics are better suited for photographs.
True
False
Cassie is creating an image using a graphics software package.
Select three statements that are true about vector graphics
When stretched the image can become blurred
The image quality does not depend on resolution
The image takes up a lot of storage space
The image can be stretched without loss of clarity
There is no need to store individual pixel values
What effect does the resolution of the image have on the image size?
Higher resolution increases image size.
Higher resolution decreases image size.
Resolution does not affect image size.
Lower resolution increases image size.
Approximately how many pixels are in a bitmap graphic, if the width is 80 pixels and the height is 60 pixels?
48
4,800
48,000
Cassie changes the sample rate on a sound file she has created. In the table below, tick (✓) the statement which is true about Cassie’s sound file.
Increasing the sample rate increases the quality of the audio file
Increasing the sample rate decreases the file size
The letters ADC stand for:
Analog to Digital Converter
Automatic Data Control
Advanced Digital Circuit
Active Device Channel
Complete the sentence below about compression techniques by placing the following words in the correct place: LOSSLESS, LOSSY A file can be fully restored to its original state using __________ compression. __________ is a method of compression that means the data discarded from a file can never be recovered.
A file can be fully restored to its original state using LOSSLESS compression. LOSSY is a method of compression that means the data discarded from a file can never be recovered.
A file can be fully restored to its original state using LOSSY compression. LOSSLESS is a method of compression that means the data discarded from a file can never be recovered.
A file can be fully restored to its original state using LOSSLESS compression. LOSSLESS is a method of compression that means the data discarded from a file can never be recovered.
A file can be fully restored to its original state using LOSSY compression. LOSSY is a method of compression that means the data discarded from a file can never be recovered.
Cassie is viewing a video online. (a) Circle the correct statement about buffering.
Buffering is used to minimise interruptions to viewing
Buffering is used to hold the segments of the video that have been played
Cassie is viewing a video online.
Streaming is widely used to support the transfer of various types of media.
Below are two statements.
State whether A or B, Neither or Both is an advantage of streaming.
Statement A: Streaming reduces waiting times for downloads
Statement B: Streaming relies heavily on a stable and fast internet connection
Neither Statement A nor Statement B
Both Statement A and Statement B
Clarendon College produces video tutorials which are made available for students on a website.
Which process can Clarendon College use to ensure that students can download the video quickly?
Compress the video files before uploading them to the website.
Upload videos in the highest possible resolution without compression.
Use a slow server for hosting the videos.
Require students to download videos during peak internet usage hours.
Clarendon College produces video tutorials which are made available for students on a website.
State a suitable video file format for these tutorials.
MP4
DOCX
JPEG
Bit depth in a sound recording refers to:
The number of bits used to represent each audio sample.
The number of audio channels in the recording.
The length of the audio recording in seconds.
The frequency range captured in the recording.
Data portability refers to:
The ability to transfer data from one system to another easily.
The process of deleting data permanently.
The method of encrypting data for security.
The act of storing data in physical devices only.
The sequence of loading an operating system into RAM when a computer is turned on is called:
Booting
Formatting
Installing
Compiling
A laptop has 2048 Megabytes of RAM. State what size the RAM is in Gigabytes.
1 GB
2 GB
4 GB
0.5 GB
The Central Processing Unit (CPU) in a computer system serves as the “brain” of the computer.
Indicate which one of the following statements best describes the purpose of the CPU.
Storing data and files.
Processes data.
Control the flow of electricity in a computer system.
Using the words supplied below, complete the following sentence about the Central Processing Unit (CPU).
The main purpose of the CPU is to __________________ the functions of a computer by __________________ data and instructions.
Manage; Processing
Control; Storing
Operate; Transmitting
Direct; Receiving
Using the words supplied below, complete the following sentence about the Fetch Execute Cycle.
In the Fetch Execute Cycle, the CPU systematically processes instructions from a _______ , enabling the computer to run software, perform computations, and carry out various _____. This cycle repeats continuously, allowing the CPU to execute a ________ of instructions and make the computer function effectively.
PROGRAM; TASKS; SEQUENCE
MEMORY; DEVICES; LIST
PROCESSOR; FUNCTIONS; GROUP
DISK; OPERATIONS; SET
The letters IAS stand for:
Immediate Access Store
Immediate Access Storage
Institute of Applied Science
Internal Access Storage
Complete the sentences below using the words supplied.
Operating systems are __________ that __________ computer hardware and software __________ . An operating system provides the user with a working __________ .
Operating systems are SOFTWARE that MANAGE computer hardware and software RESOURCES. An operating system provides the user with a working INTERFACE.
Operating systems are INTERFACE that RESOURCES computer hardware and software MANAGE. An operating system provides the user with a working SOFTWARE.
Operating systems are RESOURCES that SOFTWARE computer hardware and software INTERFACE. An operating system provides the user with a working MANAGE.
Operating systems are MANAGE that INTERFACE computer hardware and software SOFTWARE. An operating system provides the user with a working RESOURCES.
List three input devices required for computer gaming.
Keyboard
Monitor
Game Controller
Speakers
Mouse
Ben works between home and his office; he accesses customer data using an internet connection.
Explain two ways Ben’s computer could become infected by a virus.
Downloading infected files or email attachments
Connecting to Bluetooth speakers
Visiting malicious websites
Installing official software updates
A Local Area Network (LAN) is:
a network that connects computers within a limited area such as a building
a network that covers an entire country
a network that connects devices using satellite communication
a network that operates only through wireless signals
True or False
If the server fails, then the network will continue to work.
FALSE
TRUE
True or False?
A new workstation can be attached directly without shutting down the network.
TRUE
FALSE
True or False?
If a workstation fails, then the network will continue to work.
TRUE
FALSE
Select the correct description that describes how computers are connected on a bus network.
A single central cable with computers connected along it.
Computers connected in a circular ring.
Computers connected in a star pattern with a central hub.
Computers connected in a mesh pattern with each computer linked to every other.
State two disadvantages of using a bus topology to network computers.
If the main cable fails, the whole network goes down.
It is the most secure topology for large organisations.
1. Bus topology requires expensive hardware for each device.
It automatically repairs cable faults without user intervention.
Performance decreases as more devices are added or network traffic increases.
In relation to networking, complete the following sentences.
Networking involves _______ computers that share data between them. These connected _______ make use of communication __________ to transmit information over physical or wireless technologies.
LINKING, DEVICES, PROTOCOLS
CONNECTING, MACHINES, SIGNALS
JOINING, SYSTEMS, CHANNELS
PAIRING, UNITS, CODES
The letters IoT stand for:
Internet of Things
Information of Technology
Input Output Terminal
Integrated Online Technology
Bluetooth is a communication medium designed to enable a range of portable devices to connect. Which of the following lists two tasks Bluetooth is commonly used for?
Transferring files between devices and connecting wireless headphones
Printing documents and browsing the internet
Charging devices and sending emails
Editing photos and making phone calls
Identify the networks in the image - ensure you get them in the right order
Bus, Star, Ring
Tree, Star, Mesh
Mesh, Token, Ring
Bus, Tree, Star
Which device is used to input sound into a computer?
Printer
Microphone
Speaker
Monitor
What is the main function of a router in a computer network?
To store data
To connect different networks and direct data traffic
To print documents
To display images
Which of the following best describes a byte?
A single binary digit
A unit of image resolution
A group of eight bits
A type of network cable
Which device is commonly used to display visual output from a computer?
Printer
Speaker
Microphone
Monitor
What does the acronym RAM stand for in computing?
Readily Available Module
Random Access Memory
Remote Application Manager
Rapid Action Machine
Which of the following is an example of an output device?
Mouse
Keyboard
Speaker
Scanner
Which of the following is a characteristic of vector graphics?
They can be scaled without losing quality.
They are made up of pixels.
They are best used for photographs.
They lose detail when resized.
Which network topology connects each computer to a central hub?
Ring
Star
Bus
Mesh
What does increasing the bit depth in a sound file do?
Improves the dynamic range and quality of the audio
Reduces the file size
Decreases the number of audio channels
Shortens the length of the recording
What is the main function of RAM in a computer system?
To process data
To store files permanently
To connect to the internet
To temporarily hold data and instructions currently in use
Which of the following devices is used to convert digital signals into analog signals?
DAC (Digital to Analog Converter)
SSD (Solid State Drive)
CPU (Central Processing Unit)
RAM (Random Access Memory)
Which type of compression permanently removes some data from a file to reduce its size?
Bitmap compression
Lossless compression
Vector compression
Lossy compression
Which device is commonly used to connect multiple computers in a local area network?
Keyboard
Monitor
Scanner
Switch
Which of the following is an example of a lossless image file format?
JPEG
GIF
PNG
MP3
True or False?
Increasing the bit depth of an audio file improves its sound quality.
FALSE
TRUE
Which network topology connects each computer directly to a central switch or hub?
Star topology
Bus topology
Mesh topology
Ring topology
What does the acronym LAN stand for in computer networking?
Large Application Network
Linked Access Node
Local Area Network
Logical Array Network
Which of the following is a benefit of using fibre-optic cables in a network?
They are ideal for short-range wireless connections.
They transmit data using light signals, allowing for high-speed communication.
They can only be used for analog signals.
They are less expensive than copper cables.
Which process reduces the file size of images to make them easier to share online?
Encryption
Compression
Formatting
Defragmentation
Which file format is commonly used for storing digital images?
JPEG
MP3
DOCX
MP4
What is the main function of a router in a computer network?
To display images on the screen
To connect different networks and direct data traffic
To store files and documents
To input text into the computer
Which of the following is NOT a common use for RAM in a computer system?
Providing fast access to data
Temporarily holding data
Running active programs
Storing files permanently
Which file format is most suitable for storing high-quality images with minimal compression?
JPEG
TXT
PNG
MP3
What is the main advantage of using a Solid State Drive (SSD) over a traditional Hard Disk Drive (HDD)?
Faster data access speeds
Higher storage capacity
More moving parts
Lower cost
Which of the following is a disadvantage of streaming media?
Allows instant access to content
Provides high-quality playback
Reduces storage requirements
Requires a constant internet connection
Which file format is commonly used for storing bitmap images?
TXT
MP4
JPEG
MP3
Which device is used to store data permanently in a computer?
Keyboard
RAM
Monitor
SSD
Which of the following is an example of a vector graphic file format?
SVG
JPEG
GIF
BMP
Which device is primarily used to output sound from a computer?
Microphone
Speaker
Keyboard
Scanner
True or False?
Increasing the bit depth of an audio file allows for more accurate sound representation.
True
False
Which of the following is NOT a function of an operating system?
Providing a user interface
Managing hardware resources
Editing photos
Running application software
Which device is commonly used to store large amounts of data permanently?
Monitor
RAM
Hard Disk Drive
CPU
Which of the following statements about data compression is correct?
Lossless compression always reduces file size more than lossy
Lossy compression removes some data permanently
Compression increases the size of a file
Lossy compression allows full recovery of original data
Which component of a computer system is responsible for executing instructions and performing calculations?
Central Processing Unit (CPU)
Hard Disk Drive
Keyboard
Monitor
What is the main function of the Fetch Execute Cycle in a CPU?
To display images on the screen
To store files and documents
To connect computers in a network
To process and execute instructions
Which of the following best describes the role of the CPU in a computer system?
It controls and processes all data and instructions.
It manages the computer's memory only.
It stores permanent files and folders.
It provides internet connectivity.
Which device is primarily used to display visual output from a computer?
Keyboard
Microphone
Monitor
Scanner
What is the main function of RAM in a computer system?
To temporarily hold data and instructions currently in use
To process graphics
To store data permanently
To connect to the internet
Which of the following is an example of an input device?
Printer
Speaker
Mouse
Projector
Which unit is used to measure the speed of a CPU?
Megapixels
Gigahertz
Watts
Gigabytes
Which of the following statements about RAM is correct?
RAM is only found in printers.
RAM is used to display graphics on the monitor.
RAM temporarily stores data currently in use.
RAM is a type of permanent storage.
What is the main advantage of using a star network topology over a bus topology?
It requires less cable
It is easier to add or remove devices without affecting the network
It is less expensive to set up
It does not need a central device
Which of the following is a common image file format used for photographs?
EXE
MP3
TXT
JPEG
True or False?
Lossy compression permanently removes some data from a file to reduce its size.
FALSE
TRUE
Which of the following is a function of the operating system?
Designing web pages
Managing hardware resources
Printing documents
Editing videos
What does the term 'RAM' stand for in computing?
Random Access Memory
Readily Available Media
Remote Application Module
Rapid Action Monitor
Which of the following is an example of a utility application?
Spreadsheet software
Web browser
Presentation software
Disk defragmenter
Which network topology connects each computer to a central hub?
Star topology
Ring topology
Bus topology
Mesh topology
Which device is required to connect a local network to the Internet?
Router
Printer
Monitor
Scanner
Which of the following is a benefit of using lossless compression?
Data is permanently deleted
Files are always smaller than with lossy compression
Compression is faster than lossy methods
Original data can be perfectly restored
Which component of a computer system is responsible for carrying out arithmetic and logic operations?
Graphics Card
Random Access Memory (RAM)
Central Processing Unit (CPU)
Hard Disk Drive
