1.4 Network Security

Question 1

What is an active attack

Answer 1

When someone attacks a network with malware

Question 2

What is a passive attack

Answer 2

The monitoring and interception of data

Question 3

What is a brute force attack

Answer 3

Passwords are cracked through trial and error
Using software to try every combination

Question 4

How to defend a brute force attack

Answer 4

Lock after a certain amount of guesses

Question 5

What is a DOS attack

Answer 5

Denial of Service
The users cannot access a certain part of the network by flooding the network with traffic

Question 6

Malware

Answer 6

Malicious software that exploits a computer

Question 7

How can malware enter a computer

Answer 7

Virus
Worms
Trojan

Question 8

What are viruses

Answer 8

Malware that binds to a certain file and goes onto computer when opened

Question 9

What are worms

Answer 9

Self-replicating malware

Question 10

What are Trojans

Answer 10

Malware disguised as legitimate software

Question 11

What is usually the weak point in secure systems and give an example how

Answer 11

People, shoulder surfing

Question 12

What is social engineering

Answer 12

Gaining access to a network or information by manipulating people

Question 13

What is phishing

Answer 13

When people are sent emails or messages claiming to be legitamate and it’s aim is to steal data

Question 14

Apart from phishing give an example of social engineering

Answer 14

Scam calls

Question 15

What is an insider attack

Answer 15

Someone who has access to the network exploits it to steal information

Question 16

What does SQL mean and what is it

Answer 16

Structured Query Language
It is a coding language used to access information in databases

Question 17

What is an SQL interjection

Answer 17

Using malicious SQL code in a websites input box to reveal sensitive information

Question 18

7 ways how to prevent malware attacks

Answer 18

Penetration Testing
Physical Secuirty
Passwords
User Access Levels
Anti-Malware
Firewall
Encryption

Question 19

How does penetration testing keep a network secure

Answer 19

Organisations employ white hat hackers to do an attack on the network and simulate where the weaknesses are

Question 20

How does physical security keep a network secure

Answer 20

The physical parts of the network are protected through locks and surveillance

Question 21

How do passwords keep a network secure

Answer 21

Prevent unauthorised users accessing the network

Question 22

How do user access levels keep a network secure

Answer 22

Which part of the network can be accessed by which users
Limit the number of people with access to important data

Question 23

How does anti-malware keep a network secure

Answer 23

Stops malware before it can damage a network
Firewalls block unauthorized access

Question 24

How does encryption

Answer 24

Data is transferred into a code only a key can open
Data can be sent over a network securely