3.3 Data Storage Cambridge IGCSE 0478

What is the primary purpose of RAM (Random Access Memory)?

• To store data and instructions that the CPU is actively using

• To permanently store files and documents

• To store the operating system firmware

• To hold the boot-up instructions

Why is ROM (Read-Only Memory) needed in a computer?

• It stores essential boot-up instructions permanently

• It provides temporary storage for active applications

• It acts as additional memory when RAM is full

• It is used for storing user files

What is the main characteristic of secondary storage?

• It retains data even when the power is turned off

• It is directly accessed by the CPU

• It loses data when power is turned off

• It stores only temporary files

Which of the following is an example of magnetic storage?

• Hard Disk Drive (HDD)

• CD-ROM

• USB flash drive

• Blu-ray disc

How does optical storage store data?

• Using lasers to read and write data on discs

• Using magnetic fields to store data on spinning platters

• Using electrical transistors to store data

• Using liquid crystals to display stored data

Which of the following is an example of solid-state storage?

• SSD (Solid-State Drive)

• DVD

• Hard Disk Drive (HDD)

• Magnetic Tape

What is virtual memory?

• A section of the hard drive used as additional RAM

• A faster type of RAM installed on a computer

• A separate physical storage device for temporary data

• A memory module that retains data permanently

Which of the following best describes cloud storage?

• Data stored on remote servers accessed via the internet

• Data stored on a local hard drive or USB flash drive

• Data stored temporarily in RAM for faster access

• Data stored using laser technology on an optical disc

Which of the following is a disadvantage of cloud storage?

• It requires an internet connection to access data

• It provides automatic backups for disaster recovery

• It allows access to data from multiple devices

• It offers scalable storage solutions

Why is local storage sometimes preferred over cloud storage?

• It allows complete control over data without third-party involvement

• It can be accessed from any device with an internet connection

• It provides unlimited storage without physical hardware limitations