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Free CompTIA Network+ N10-008 Practice Question

An enterprise network administrator has been notified by multiple users that they have been redirected to malicious websites despite entering the correct URLs. Upon investigation, it was discovered that the local DNS server's cache may have been poisoned. Which of the following actions should the network administrator prioritize to mitigate this issue?

  • Immediately switch to a different DNS provider.

  • Implement DNSSEC for all DNS queries.

  • Change the local DNS server's cache settings to refuse responses from unauthorized or external sources.

  • Flush the DNS cache on all affected machines.

This question's topic:
CompTIA Network+ N10-008 / 
Network Security
Your Score:
Network Security
Networking Fundamentals
Network Implementations
Network Operations
Network Troubleshooting