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WorksheetsOCR J277 GCSE Paper 1 Recap
Total questions: 35
Worksheet time: 18mins
What does the ALU do?
Stores data
Fetches instructions
Performs calculations
Controls hardware
What is the function of the Control Unit?
Manages execution of instructions
Performs calculations
Stores data
Manages RAM
What cycle describes how the CPU processes instructions?
Boot cycle
Memory cycle
CPU cycle
Fetch-Decode-Execute cycle
What is clock speed measured in?
Bytes
Kilobytes
Gigahertz (GHz)
Megabytes
How does increasing the number of CPU cores affect performance?
Slows it down
Allows multiple instructions to be executed simultaneously
Reduces the need for cache
Increases RAM usage
Which memory type is volatile?
RAM
ROM
SSD
HDD
What is stored in ROM?
User files
BIOS/Firmware
Temporary data
Operating system cache
What type of secondary storage has no moving parts?
Hard disk drive (HDD)
Solid-state drive (SSD)
Optical disc
Magnetic tape
What is the main advantage of an SSD over an HDD?
Faster read/write speed
Larger storage capacity
More durable
Less expensive
How is data stored on an optical disc?
Magnetically
Using pits and lands
Electrically
Mechanically
What is a LAN?
Large Area Network
Local Area Network
Logical Address Network
Long Access Network
What does a router do?
Stores data
Connects peripherals
Directs traffic between networks
Encrypts information
What does a switch do?
Converts data to signals
Routes data efficiently between devices
Connects different networks
Filters web traffic
What protocol is used to transfer webpages?
FTP
POP
SMTP
HTTP/HTTPS
What is an IP address?
A unique identifier for a device on a network
A MAC address
A website URL
A security key
What is malware?
Malicious software
A firewall
A network protocol
A type of encryption
What is phishing?
Fraudulent emails to steal information
A firewall breach
A network protocol
A data backup method
What is a brute-force attack?
Repeatedly guessing passwords
Installing malware
A type of SQL injection
Sending spam emails
What is the purpose of encryption?
Speeding up the internet
Storing data securely
Converting data into unreadable form
Allowing remote access
What does a firewall do?
Blocks unauthorized access
Prevents hardware failures
Manages IP addresses
Speeds up network traffic
What type of software manages computer hardware?
Application software
Operating system
Utility software
Malware
What is proprietary software?
Software owned by a company
Free software
Open-source software
Malware
What law makes hacking illegal in the UK?
GDPR
Copyright Act
Computer Misuse Act
Data Protection Act
What is the purpose of the Data Protection Act?
Protecting personal data
Preventing hacking
Controlling software piracy
Protecting software companies
What does the Freedom of Information Act allow?
Government surveillance
Software sharing
Public access to government data
Cloud computing
What is decomposition?
Breaking a problem into smaller parts
Encrypting data
Storing variables
Converting data formats
What is an algorithm?
A step-by-step set of instructions
A programming language
A computer virus
A network protocol
What does a flowchart show?
CPU processes
RAM usage
The logic of an algorithm
Network connections
What type of search is used in a sorted list?
Binary search
Linear search
Brute-force search
Bubble sort
What is the output of `print(3 + 4 * 2)` in Python?
11
14
10
7
What is e-waste?
Discarded electronic devices
Software piracy
Cybersecurity threats
A type of malware
How can businesses reduce e-waste?
Recycling old hardware
Buying more devices
Upgrading every year
Using weaker encryption
What is a negative impact of e-waste?
Environmental pollution
Faster computing
More internet access
Improved security
How does cloud computing impact the environment?
Reduces carbon emissions
Increases energy usage in data centers
Reduces software piracy
Prevents cyberattacks
What is an ethical issue related to AI?
Bias in decision-making
Faster data transfer
More storage space
Faster CPUs
