Computer systems (Security)

Question 1

What are the three things the Computer Misuse Act of 1990 supposed to stop?

Answer 1

1. Unauthorised access to computer material
2. Unauthorised access to the internet for further harm
3. Unauthorised modification to computer programs or data

Question 2

What are the actions considered to be Unauthorised access to a computer?

Answer 2

1. Access files of other , when you don’t have their permission
2. This can lead to 6 months in prison or a fine

Question 3

What are the actions considered to be Unauthorised access to the internet for further harm ?

Answer 3

1. Accessing the files of someone without their permission this can is also called hacking

Question 4

What are the possible reasons and methods for thew question above ?

Answer 4

Reasons include :

-they want to make the person look bad by impersonating them
-They want to steal bank information or other valuable info .

Methods include :

-phishing
-installing spyware
-guessing logins to websites

Question 5

What are the actions considered to be Unauthorised modification to computer material / data?

Answer 5

• Hacking
  -Spreading/Creating viruses

Question 6

What are tracking cookies?

Answer 6

They are small files created when a user goes onto a website

Question 7

What do tracking cookies store ?

Answer 7

-Stores details which are then sent back to the cookies author

-logs the actions the person has done online

Question 8

What do tracking cookies allow for ?

Answer 8

Personalised adverts

Question 9

What is a Denial of Service attack ?

Answer 9

A Denial of Service attack occurs when someone floods a server or online resource with excessive messages to disrupt access for legitimate users.

Question 10

What are the symptoms of a Denial of Service attack ?

Answer 10

The server slows down a lot and you not being able to access some on the data in the website

Question 11

Reasons for a Denial of Service attack ?

Answer 11

Financial - bringing down a commercial website will cost that company money.

Political - prevent access to the website of a political rival.

Personal - the attacker may have a personal grudge against the owner of the website.

FPP

Question 12

What are the types of faults that come with a Denial of Service attack ?

Answer 12

DNS attack
Bandwidth consumption
Resource starvation

Question 13

What are Public And Private Keys ?

Answer 13

Public Keys - What they do is that the encrypt that data being sent to the other user (everyone knows this one)

Private Key - Only the end user receiving the message knows it and therefor they can only access it . It use is to decrypt the data sent by the other person

Question 14

What is a digital certificate ?

Answer 14

All this does is that it allows a user to send data through the internet as it authenticates them

Question 15

What is a digital signature ?

Answer 15

A digital signature is created when a message is sent using a private key.