Certified Ethical Hacker (CEH v10) — Question 50

Some clients of TPNQM SA were redirected to a malicious site when they tried to access the TPNQM main site. Bob, a system administrator at TPNQM SA, found that they were victims of DNS Cache Poisoning.
What should Bob recommend to deal with such a threat?

Answer options

• A. The use of security agents in clients' computers
• B. The use of DNSSEC
• C. The use of double-factor authentication
• D. Client awareness

Correct answer: B

Explanation

DNSSEC is designed to protect against DNS Cache Poisoning by ensuring the integrity and authenticity of DNS data through digital signatures. The other options, while they may enhance security in different ways, do not specifically address the vulnerabilities associated with DNS Cache Poisoning.