Computing Mock 2024

Question 1 of 50

Which HTML tag displays an image?

Question 2 of 50

A data structure that stores items of the same type under one name, accessed by index, is

Question 3 of 50

What does len("Ghana") return in Python?

Question 4 of 50

Which keyword defines a function in Python?

Question 5 of 50

Which method adds an item to the end of a Python list?

Question 6 of 50

Which is a function of an operating system?

Question 7 of 50

A small program that lets the operating system communicate with a printer is a

Question 8 of 50

Optical discs such as DVDs are read using

Question 9 of 50

Software used to create and manage databases, such as MySQL, is a

Question 10 of 50

A bitmap image is made up of tiny dots called

Question 11 of 50

The part of the CPU that directs the flow of data and instructions is the

Question 12 of 50

Simplify the Boolean expression A + A.

Question 13 of 50

What is A · 1 equal to?

Question 14 of 50

What is A + 1 equal to?

Question 15 of 50

A QR code differs from a traditional barcode because it

Question 16 of 50

Tags that are read by radio waves, for example on goods in a warehouse, use

Question 17 of 50

Reading the marks on multiple-choice answer sheets automatically uses

Question 18 of 50

If the central switch in a star network fails,

Question 19 of 50

Small, very fast memory between the CPU and main memory is

Question 20 of 50

Using part of the hard disk as if it were extra RAM is

Question 21 of 50

If word = "computer", what is word[0:3]?

Question 22 of 50

A signal that tells the CPU to stop what it is doing and deal with an event is an

Question 23 of 50

The core part of an operating system that controls the hardware is the

Question 24 of 50

An IPv4 address is made up of

Question 25 of 50

Which network service automatically gives devices an IP address?

Question 26 of 50

The Turing test asks whether

Question 27 of 50

Compared with a hard disk drive, a solid-state drive is

Question 28 of 50

In SQL, which clause filters the rows returned by a query?

Question 29 of 50

A web page that adjusts its layout to fit phones, tablets and computers uses

Question 30 of 50

Convert the binary number 110110 to decimal.

Question 31 of 50

How many different values can be stored in 8 bits?

Question 32 of 50

Which character encoding can represent characters from almost every language?

Question 33 of 50

A sound file sampled more often per second will

Question 34 of 50

A register that holds the result of calculations in the ALU is the

Question 35 of 50

Having more processor cores mainly allows a computer to

Question 36 of 50

What is the output of: d = {"a": 1}; d["b"] = 2; print(len(d))

Question 37 of 50

What happens when a Python program divides by zero without handling it?

Question 38 of 50

What is printed by: print(10 // 3, 10 % 3)

Question 39 of 50

Round-robin scheduling gives each process

Question 40 of 50

The SQL statement SELECT name FROM students ORDER BY score DESC returns names

Question 41 of 50

A CPU with a 3 GHz clock completes how many cycles per second?

Question 42 of 50

Moore's law observed that the number of transistors on a chip

Question 43 of 50

A binary search tree stores values so that

Question 44 of 50

What is the output of: print([x * 2 for x in range(3)])

Question 45 of 50

Thrashing in virtual memory occurs when

Question 46 of 50

A deadlock occurs when

Question 47 of 50

RAID 1 provides data protection by

Question 48 of 50

In supervised machine learning, the training data must be

Question 49 of 50

SQL injection attacks are prevented by

Question 50 of 50

Cache hit ratio of 90% means