1. Right Answer: A
Explanation: DNS Record Type -AΓΒ refers Host IP Address.
2. Right Answer: B
Explanation: DNS Record Type -AΓΒ refers Host IP Address, -MXΓΒ refers Domain-s Mail Server, -NSΓΒ refers Host-s Name Server and -SRVΓΒ reveals Service records information.
3. Right Answer: B
Explanation: Signing digitally is very beneficial for developers and users downloading applications. Users are assured of whether or not they should trust the downloading source.
4. Right Answer: C
Explanation: oG (greppable output) consist of comments which are target lines with six labeled fields: Host, Ports, Protocols, Ignored state, OS, Seg Index, IP ID, and Status.
5. Right Answer: C
Explanation: Cain and Abel is a password recovery tool for Microsoft Windows.