Find some below sample questions

Question 1. What are the ASA security Levels?

Answer: In ASA security levels are nothing but the interfaces of firewalls. In the ASA firewall, we have 0 -100 security levels. The security level inside is 100 means it is more trusted. The security level on the outside interface is 0 means we can not trust because it is the untrusted mode.

Question 2. What is the default session timeout for TCP?

Answer: 60minutes

Question 3. What is layer2 Firewall

Answer: Transparent firewalls can act as a layer 2 device. Transparent firewalls can be easily configured on existing networks. In transparent firewall layer 3 traffic, we can easily pass from higher security levels to the lower security levels without any access-list configuration.

Question 4. How stateful Inspection in firewall works.

Answer: Stateful firewalls have state tables or connection tables. In-state tables we can keep track of all active connections. Stateful firewalls have dynamic state tables which can change dynamically on every state of each connection. Stateful Firewall first inspects the state table and then the policies.

Question 5. If we have the same security levels on both the side can we connect?

Answer: We need to use one command for communication. Same-security-traffic permit inter-interface

Question 6. What kind of information does the firewall maintain in Stateful Inspection?

Answer: Stateful Table maintains the following type of information

Source Ip address

Destination Ip address

IP protocol TCP & UDP

IP protocol information we have which are nothing but TCP/UDP port numbers, TCP sequence number & TCP flags

Question 7. Explain the packet flow in ASA?

Answer: