Revision Year 11 Paper 1

What does the ALU do?

• The ALU stores data permanently.
• The ALU manages memory allocation.
• The ALU performs arithmetic and logical operations.
• The ALU connects input and output devices.

What is the difference between a MAC address and IP address?

• A MAC address is used for internet browsing, while an IP address is for local devices.
• A MAC address is a temporary address, while an IP address is permanent.
• A MAC address is used for email communication, while an IP address is for file sharing.
• A MAC address is a hardware address used for local network, while an IP address is a logical address used for routing data across networks.

Which law protects personal data?

• Copyright, Designs and Patents Act

• Fraud Act

• Computer Misuse Act

• Data Protection Act

What is a logic error?

• A logic error is an error that occurs when the program is unable to compile.
• A logic error is a mistake in a program's logic that results in incorrect output despite the program running without crashing.
• A logic error is a spelling mistake that causes a program to crash.

• A logic error is when a program runs too slowly due to inefficient code.

What is meant by lossy compression?

• Lossy compression is a method that reduces file size by permanently removing some data.

• Lossy compression is a technique used for error correction in data transmission.
• Lossy compression increases file size without losing quality.
• Lossy compression is a method that retains all original data.

Identify the components of the CPU

a

b

c

d

e

f

g

h

Address Bus

Control Bus

Cache

Registers

Data Bus

Clock

ALU

Control Unit

Identify which are OS functions and which are utilities

Groups:

(a) Operating System

,

(b) Utility Software

• File Management

• File Repair

• Anti-Malware

• User Management

• Disk Defragmentation

• Process Management

• Backup

• Data Compression

• Peripheral Management

Should we be using AI in schools?

• Yes

• No

Evaluate the use of AI in schools (6 Marks)

Match the protocol to it's purpose

• POP3

• Reads and manages emails stored online

• IMAP

• Transmits data using cables

• Ethernet

• Downloads email and deletes from server

• SMTP

• Used to send emails