A healthcare organization uses digital signatures on electronic medical records to ensure that the records have not been tampered with during transmission. Which security goal is primarily being addressed by this practice?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
Distractor review
Confidentiality
Confidentiality ensures data is only accessible to authorized parties, typically through encryption. Digital signatures focus on detecting tampering, not restricting access.
Best answer
Integrity
Integrity ensures data has not been altered by unauthorized parties. Digital signatures provide a mechanism to detect any changes, thus preserving integrity.
Distractor review
Availability
Availability ensures systems and data are accessible when needed. Digital signatures do not directly address uptime or access reliability.
Distractor review
Non-repudiation
Non-repudiation prevents a party from denying an action, like sending a message. While digital signatures support non-repudiation, the primary goal described is detecting tampering, which relates to integrity.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Related practice questions
Related SC-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
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FAQ
Questions learners often ask
What does this SC-900 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Integrity — Digital signatures use cryptographic techniques to verify that a message or document has not been altered in transit. This directly supports the integrity goal by ensuring data is accurate and unchanged. While non-repudiation is also a benefit (preventing denial of actions), the core purpose described is detecting tampering, which is integrity.
What should I do if I get this SC-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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