In the above question that which function will the domain receive from the name server is an Authoritative functions because it is the server that issues command to the domain
The full meaning of Dig in this context is Domain Information Groper which is refer to the administration command line instrument which is use in the navigating and querying of the Domain Name System,and which is also used for verifying and troubleshooting any Domain Name System issues.
Packet Filtering Firewall is responsible for filtering the packets based on the IP addresses (source and destination), source and destination port numbers and also the source and destination protocols.
These firewalls operate at the junctions such as switches and routers.
Packets that don't meet required criteria are dropped and they cannot further forwarded.
It is not fully secured and can be used by the malicious attackers.
So, option (c) is Correct.
Option (a), Application Layer Firewall is a firewall at the application level not at the packets level.So, option (a) is not the correct option.
Option (b), Stateful firewall is different and it is not the correct answer.
Explanation: If pyrotechnic VDSs are used, they must be dated. Expired VDSs may be carried on board, but a minimum of three unexpired VDSs must be carried in the vessel.