KS4 Y10 T3 Computer Science

Question 1

Mark TRUE statements about "procedures"

Accepted Answer

They don&#x27;t return a value., They are collection of statements that define what happens., They don&#x27;t exist in Phyton.

Question 2

Mark TRUE statements about "functions"

Accepted Answer

They are types of subprograms., They return a value (e.g. "null")., They are usually mathematical functions.

Question 3

Predict output

Accepted Answer

1

Question 4

Data travels from RAM to CPU on hardware path called ...

Accepted Answer

data bus

Question 5

WHILE loops ...

Accepted Answer

... are used when you don&#x27;t know how many time you want to repeat something

Question 6

Data processing happens at ... stage

Accepted Answer

EXECUTE

Question 7

Variables inside a subprogram exists outside of it.

Accepted Answer

False

Question 8

Which busses are unidirectional?

Accepted Answer

address bus

Question 9

The Von Neumann architecture consists of .....

Accepted Answer

Memory Unit (typically RAM), Arithmetic and Logic Unit (ALU), Control Unit (CU)

Question 10

Predict output

Accepted Answer

range(0, 10)

Question 11

Predict output of this code in Python

Accepted Answer

7

Question 12

Predict output

Accepted Answer

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Question 13

Mark true statements about Arithmetic and Logic Unit (ALU)

Accepted Answer

ALU is able to compare numbers against 0., ALU can perform logic operation on data (e.g. AND, OR, NOT, XOR), ALU can perform arithmetic operations on data (+, /, =, *)

Question 14

Predict output

Accepted Answer

7

Question 15

Mark key characteristics of Van Neumann architecture.

Accepted Answer

Single Control Unit (CU), Onboard cache, Central Processing Unit (CPU), Internal clock, Arithmetic Log Unit (ALU)

Question 16

A calculator is an example of stored program computer.

Accepted Answer

False

Question 17

FOR loops ...

Accepted Answer

... are used when you know how many times you want to repeat something, ... are called "counting loops"

Question 18

Mark TRUE statements about CLOCK

Accepted Answer

it determines the speed of the CPU., The speed of the clock is measured in amount of cycles per second (Hz).

Question 19

Python uses "array" data structure to represent "list".

Accepted Answer

False

Question 20

Mark TRUE statements about Control Unit.

Accepted Answer

CU receives and sends signals from/to the other parts of computer systems., CU is responsible for fetching, decoding and executing instructions., CU is responsible for handling hardware interrupts (e.g. from keyboard)

KS4 Y10 T3 Computer Science

Questions 20

KS4 Y10 T3 Computer Science

Questions 20