Year 13 Computer Science A Level (Y12 topics)

What is the main difference between primary and secondary storage?

• Primary storage is faster and more expensive, while secondary storage is slower and cheaper.

• Primary storage is temporary, while secondary storage is permanent.

• Primary storage is used for documents and photos, while secondary storage is used for programs.

• Primary storage is non-volatile, while secondary storage is volatile.

Which component of a computer is responsible for converting analog signals to digital signals?

• RAM

• ROM

• Modem

• Switch

What is the purpose of IP addresses in data transmission over the internet?

• To store temporary data

• To route data packets between different networks

• To provide permanent storage

• To convert URLs to IPs

What is the difference between RAM and ROM?

• RAM is used for long-term storage, while ROM is used for short-term storage.

• RAM can be erased and reprogrammed, while ROM can only be programmed once.

• RAM is faster and more expensive, while ROM is slower and cheaper.

• RAM is volatile and temporary, while ROM is non-volatile and permanent.

Which type of memory can be erased and reprogrammed multiple times?

• PROM

• DRAM

• EPROM

• SRAM

What is the purpose of an operating system?

• To design user interfaces

• To create high-level source code

• To analyze data patterns

• To manage computer hardware and software resources

What is the difference between validation and verification?

• Validation is manual, while verification is automated

• Validation is used for hardware, while verification is used for software

• Validation and verification are the same processes

• Validation checks if data is accurate, complete, and consistent, while verification checks if the data is the same as the original

Which of the following is a common type of cyber threat?

• Weather forecasting

• Online shopping discounts

• Social media marketing

• Phishing attacks

What is the purpose of a compiler?

• To analyze data patterns

• To create user interfaces

• To manage computer memory

• To translate high-level source code into machine code in one go

How can data be verified during transfer?

• Using checksums to compare the received data with the original data

• Using encryption to secure the data

• Using compression to reduce the data size

• Using validation rules to check the data format