GIAC
GISP · Question #90
You work as a Network Administrator for NetTech Inc. The company's network has a Windows 2000 domain-based network. You want to prevent malicious e-mails from entering the network from the…
The correct answer is C. Enable DNS reverse lookup on the e-mail server. See the full explanation below for the reasoning.
Question
You work as a Network Administrator for NetTech Inc. The company's network has a Windows 2000 domain-based network. You want to prevent malicious e-mails from entering the network from the non-existing domains. What will you do to accomplish this?
Options
- ADisable DNS recursive queries on the DNS server.
- BEnable DNS recursive queries on the DNS server.
- CEnable DNS reverse lookup on the e-mail server.
- DDisable DNS reverse lookup on the e-mail server.
How the community answered
(44 responses)- A7% (3)
- B5% (2)
- C75% (33)
- D14% (6)
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