Grade 11 Theory II — Operating Systems, Virtualisation & Security

Question 1

When comparing operating systems by cost, size, hardware requirements and platform, which factor asks 'how much RAM and storage does it need to run acceptably'?

Question 2

A program that translates an entire program's source code into machine code all at once, before it runs, is called a:

Question 3

A program that translates and executes source code line-by-line, AS the program runs, is called a:

Question 4

An operating system capability that allows several programs to appear to run at the same time, by rapidly switching the CPU's attention between them, is called:

Question 5

Splitting a single program into multiple smaller sequences of instructions that can be managed and executed more efficiently is called:

Question 6

Using more than one physical CPU (or CPU core) to execute instructions at the same time is called:

Question 7

What is virtual memory?

Question 8

What is virtualisation, in the general computing sense?

Question 9

A virtual machine (VM) is best described as:

Question 10

Which of these threats specifically relies on TRICKING a person, rather than exploiting a technical flaw?

Question 11

Which of these malicious programs specifically SPREADS itself across a network WITHOUT needing to attach to another program?

Question 12

Malicious software that disguises itself as legitimate or useful software to trick a user into installing it is called a:

Question 13

Malicious software designed to hide its presence and give an attacker ongoing privileged (root/admin) access to a system is called a:

Question 14

Which remedy specifically protects against data loss during a power outage, by supplying temporary backup power?

Question 15

Restricting what different users are allowed to do on a system (e.g. read-only vs full control) is an example of managing:

Question 16

GIGO (Garbage In, Garbage Out) refers to which type of computer management risk?

Question 17 — Match the columns

Match each malicious software type in Column A to its defining behaviour in Column B.

Question 18 — Match the columns

Match each processing technique in Column A to its description in Column B.

Question 19

Which threat involves an attacker intercepting or impersonating network communication to appear as a trusted party?

Question 20

Which of these is a physical (rather than purely digital) threat to computer security?