OCR GCSE Computer Science Quiz

What is the decimal equivalent of the binary number 1010?

• 1010

• 1100

• 10

• 1001

Which type of primary storage is the fastest in the memory hierarchy of computers?

• CD-ROM

• RAM

• Hard disk drive

• Cache memory

What is the main purpose of using variables in Python programming?

• To slow down the program

• To make the code more confusing

• To use up more memory

• To store and manage data in Python programs

Why is data privacy important in the field of computer science?

• To increase the speed of data processing

• To protect sensitive information from unauthorized access or misuse.

• To allow companies to sell personal information for profit

• To make data more accessible to everyone

What is the function of utility software in a computer system?

• It helps cook food for the user

• It assists in watering plants

• It provides entertainment for the user

• It helps analyze, configure, optimize, and maintain the computer system.

What is the role of cache memory in the memory hierarchy of computers?

• It provides faster access to frequently used data and instructions.

• It has no impact on the speed of accessing data and instructions.

• It only stores data and instructions that are rarely used.

• It slows down the access to frequently used data and instructions.

What are the different data types available in Python programming?

• apple, banana, orange, grape

• red, blue, green, yellow

• cat, dog, bird, fish

• int, float, complex, str, list, tuple, dict, set, bool, bytes, bytearray, memoryview, None

How can data security be ensured in computer systems?

• By implementing strong encryption, using firewalls, regularly updating software and operating systems, restricting access to sensitive data, and implementing multi-factor authentication.

• By leaving the system open to anyone

• By sharing sensitive data with everyone

• By using outdated software and operating systems

Name one example of utility software used for system optimization.

• Video streaming app

• Photo editing software

• Disk cleanup tool

• Social media platform

What is the decimal equivalent of the binary number 1111?

• 15

• 10

• 5

• 7