OCR A Level Computer Science - Network Security Threats & Prevention

Question 1

(A) People doing social engineering can impersonate entities that are trustable for the user.

Accepted Answer

True

Question 2

(A) Which of the following best describes SQL Injection

Accepted Answer

Embedding SQL code into requests that are queried to the server's database.

Question 3

(A) Which of the following best describes brute force attack?

Accepted Answer

Attempting different password combinations with a specific username

Question 4

(A) Select statement(s) that best describe ways to prevent brute force attacks

Accepted Answer

Making the password change frequently, Increasing password length

Question 5

(A) Select statement(s) that best describe ways to prevent SQL Injection

Accepted Answer

Data validation, Data sanitisation

Question 6

(A) John is receiving suspicious emails from the bank & asks him to enter his credentials. How should he respond?

Accepted Answer

Verify the sender's address, Contact the bank and ask them about the email

Question 7

(A) Ben is worried that his accounts with simple passwords can be stolen. What should he do?

Accepted Answer

Use a password manager that includes security features - password generator, Reinforce passwords by increasing the complexity., Use 2FA

Question 8

(J) What are the signs of a virus?

Accepted Answer

All of the above

Question 9

(J) What is the aim of spyware?

Accepted Answer

To sell/send your sensitive data to another entity & hack without consent.

Question 10

(J) What is pharming?

Accepted Answer

Form of online fraud. Code redirects to fradulent site without consent.

Question 11

(J) How can you prevent spyware?

Accepted Answer

All of the above

Question 12

(J) What is a virus?

Accepted Answer

Spread itself and replicate in order to corrupt or destroy data

Question 13

(J) What is the purpose of pharming

Accepted Answer

To obtain your personal information & data by input; commit fraud/theft.

Question 14

(J) How do you protect yourself from pharming?

Accepted Answer

Avoid suspicious websites, Be cautious when opening links or attachments from unknown senders., Enable 2FA, Use a VPN service that has reputable DNS servers

Question 15

(J) What is adware?

Accepted Answer

Hides on the device; serves you ads. Monitors internet usage -> targeted ad

Question 16

(A) Select statement(s) that best describe ways to prevent brute force attacks

Accepted Answer

Making the password change frequently, Increasing password length

Question 17

(A) Which of the following best describes social engineering?

Accepted Answer

Act of emotionally manipulating people to compromise a network's security

Question 18

(J) How does adware work?

Accepted Answer

User downloading it or goes to malicious website -> analyses usage; is sent

Question 19

(J) How do you get rid of adware?

Accepted Answer

Be cautious - download from trusted sites; don't open suspicious ads., Get adblocker

Question 20

(J) How does the virus work?

Accepted Answer

Attaches to a program & spreads and executes its code when program executes

Question 21

(A) Brute force attacks involves many programs that send a password request.

Accepted Answer

False

Question 22

(A) Only inserting SQL Injection into URL can allow the unauthorised user to gain access to the web server's database

Accepted Answer

False

Question 23

(A) Select statement(s) that best describe ways to prevent social engineering?

Accepted Answer

Creating social awareness, Partake in training sessions.

Question 24

(A) Using firewall does not prevent brute force attacks

Accepted Answer

True

Question 25

(J) What is spyware? Software which...

Accepted Answer

infiltrates your device which steals your internet usage & sensitive data.

OCR A Level Computer Science - Network Security Threats & Prevention

Questions 25

OCR A Level Computer Science - Network Security Threats & Prevention

Questions 25