UGC NET CSE | October 2020 | Part 2 | Question: 60

Question

Firewall is a device that filters access to the protected network from the outside network. Firewalls can filter the packets on the basis of

1. Source IP address
2. Destination IP address
3. TCP Source Port
4. UDP Source Port
5. TCP Destination Port

Choose the correct answer from the options given below:

• A. $(a), (b)$ and $(c)$ only
• B. $(b)$ and $(e)$ only
• C. $(c)$ and $(d)$ only
• D. $(a), (b), (c), (d)$ and $(e)$ only

Answer 1

 

 

Firewall is a device that filters access to the protected network from the outside network. Firewalls can filter the packets on the basis of

1. Source IP address
2. Destination IP address
3. TCP Source Port
4. UDP Source Port
5. TCP Destination Port

Answer 2

Network layer Firewall can filter on Source And Destination IP address Source and Destination Port no for both TCP and UDP packet

So the correct answer is D.