Welcome to ExamTopics
ExamTopics Logo
- Expert Verified, Online, Free.
exam questions

Exam CISA All Questions

View all questions & answers for the CISA exam

Exam CISA topic 1 question 1626 discussion

Actual exam question from Isaca's CISA
Question #: 1626
Topic #: 1
[All CISA Questions]

An external attacker spoofing an internal Internet Protocol (IP) address can BEST be detected by which of the following?

  • A. Comparing the source address to the domain name server (DNS) entry
  • B. Using static IP addresses for identification
  • C. Using a state table to compare the message states of each packet as it enters the system
  • D. Comparing the source address to the interface used as the entry point
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️

Comments

Chosen Answer:
This is a voting comment (?) , you can switch to a simple comment.
Switch to a voting comment New
Swallows
4 months ago
Selected Answer: D
When packets enter a network, they do so through specific network interfaces. Each interface typically has a designated IP address range or subnet associated with it. By comparing the source IP address of incoming packets to the IP address range expected from the interface through which they arrive, you can detect discrepancies that may indicate IP address spoofing.
upvoted 3 times
...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel
Loading ...