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IGCSE Comp Sci - Security revision

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Hacking is

a)

Malicious code installed to redirect users to a fake website

b)

A way of gaining illegal access to a computer system

c)

Sitting on a cool PC chair in black hoodie at night and staring at green digits on a monitor

d)

Malicious code installed to redirect users to a fake website

2.

Virus in comp sci context is

a)

A form of encryption requiring both a public and a private key

b)

A thing that makes your computer cough

c)

Program code that can replicate/copy itself with the intention of

deleting/corrupting data/files or causing the computer to malfunction

d)

Malicious code installed to redirect users to a fake website

3.

Phishing is

a)

Sending legitimate-looking emails to encourage users to give out personal data

b)

The editing of program source code so that it can be exploited or changed for a specific purpose

c)

Playing fishing games on a PC professionally

d)

Used to verify that data comes from a trusted source

4.

Pharming is

a)

Pieces of data which allow detection of web pages viewed by a user and store their preferences

b)

A way of gaining illegal access to a computer system

c)

Playing farming games on a PC semi-professionally

d)

Malicious code installed to redirect users to a fake website

5.

Shareware is

a)

Software that a user can download free of charge and use for free forever, no caveats

b)

Software that user can try out for free for a trial period

c)

Used to verify that data comes from a trusted source

d)

Part of Ukrainian national dress (for real though, sounds very similar)

6.

Symmetric encryption is

a)

A form of encryption requiring both a public and a private key

b)

A set of principles set out to regulate use of computers

c)

A way of gaining illegal access to a computer system

d)

A form of encryption using one private key for both sender and recipient

7.

Spyware / key-logging software is

a)

Software that gathers data by monitoring key presses on user's keyboards

b)

A form of encryption requiring both a public and a private key

c)

Malicious code installed to redirect users to a fake website

d)

Secret type of software that only spies can use

8.

Asymmetric encryption is

a)

Allows data to be sent and received securely across a network

b)

A secret key which makes a message unreadable unless the recipient also has the decryption key

c)

A form of encryption requiring both a public and a private key

d)

too much to comprehend

9.

Authentication is

a)

Used to verify that data comes from a trusted source

b)

An attempt at preventing users from accessing part of a network, notably internet servers

c)

A way of gaining illegal access to a computer system

10.

Denial of Service attack is

a)

an attempt at preventing users from accessing part of a network, notably internet servers

b)

A protocol that is designed to ensure that no third party may

eavesdrop or tamper with any message

c)

Software that gathers data by monitoring key presses on user's keyboards

d)

When someone denies you service at restaurant and then attacks you