GCSE Computer Science (Revision Unit 1)

How does a Virtual Private Network (VPN) enhance security over a public network?

Which register holds the address of the next instruction to be fetched in the CPU?

What is the role of the HTTP protocol?

What is a brute-force attack?

Which type of user interface relies solely on text-based commands?

How does increasing the clock speed of a CPU affect its performance?

What is the primary purpose of virtual memory in a computer system?

What is the main purpose of a firewall?

How can network latency be reduced?

What does the term "latency" refer to in network performance?

Why are zero-day attacks difficult to prevent?

Why is encryption important in cybersecurity?

Q2: What is the main purpose of memory management in an operating system?

How does cache memory improve CPU performance?

In a client-server network, what is the primary role of the server?

Which protocol is used to send emails?

Which of the following is an example of malware?

Which component of the operating system handles communication between hardware devices and the system?

Which of the following is a characteristic of a peer-to-peer network?

What is the role of user management in an operating system?

Which storage technology uses magnetic methods to read and write data?

How does an operating system facilitate multitasking?

Which utility software is used to rearrange data on a hard disk to improve performance?

How does a virus differ from a worm?

What is the purpose of data compression utilities?

In the Von Neumann architecture, which component is responsible for decoding instructions?

What is the primary function of the Arithmetic Logic Unit (ALU) within the CPU?

Why might a network experience packet loss?

What is the main advantage of using fiber optic cables over copper cables in networking?

Which of the following is a characteristic of lossy compression?

Which network protocol is used to securely transfer files over the internet?

Which file type commonly uses lossless compression?

Which factor does not directly affect the performance of a CPU?

What is the main function of penetration testing?

Which of the following is an example of non-volatile memory?

In the context of operating systems, what does the term 'kernel' refer to?

Which of the following is not a primary function of an operating system?

Which of the following statements about bandwidth is true?

What is the main reason for using compression in files?

Which of these factors affects network speed?

What is the difference between TCP and UDP?

In the context of network security, what does the term "phishing" refer to?

What is the primary function of the Domain Name System (DNS) in networking?

Which topology connects each node to every other node, providing multiple pathways for data transmission?​

How does encryption software enhance data security?

Which type of memory is volatile and loses its data when power is turned off?

Which protocol is responsible for assigning IP addresses dynamically to devices on a network?

Which of the following is an example of social engineering?