Network: Topologies

Question 1

Explain a Bus Network topology

Answer 1

All devices are connected to a single cable called a “bus.” This cable serves as a shared communication medium, allowing all devices on the network to receive the same signal simultaneously.

Question 2

Explain a Mesh Network topology

Answer 2

Each device is connected to each other device, instead of relying on a switch or hub

Question 2

What is the difference between a switch and a hub?

Answer 2

A hub broadcasts messages to all devices on the network. A switch sends the message to the intended recipient only.

Question 3

Explain a Star Network topology

Answer 3

All devices connect to a central switch or hub

Question 4

What are the main network vulnerabilities?

Answer 4

• Hackers
• Insiders
• Malware

Question 5

What is penetration testing?

Answer 5

Testers take role of hackers and try and gain access

Question 6

What is the difference between Black Box and White Box penetration testing?

Answer 6

Black Box: No information given beforehand
White Box: Relevant network information given beforehand

Question 7

What are the 3 main Network Protection Methods?

Answer 7

Access Control: E.g. User permissions
Physical Security: E.g. CCTV, biometrics and access doors
Firewalls: Can be software or hardware. Blocks certain communications in and out of a network