Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A hospital stores patient medical records electronically. An attacker gains access to the system and modifies patient diagnoses. Which principle of the CIA triad has been violated?
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.
A
Distractor review
Confidentiality
Confidentiality is about preventing unauthorized disclosure of information, not about unauthorized modification. This option is incorrect.
B
Best answer
Integrity
Integrity ensures that data is not altered or destroyed by unauthorized parties. The attacker modified patient diagnoses, so integrity is violated.
C
Distractor review
Availability
Availability ensures that information and resources are accessible to authorized users when needed. The scenario does not involve a denial of service, so availability is not violated.
D
Distractor review
Non-repudiation
Non-repudiation ensures that a user cannot deny having performed an action. While relevant in some contexts, the scenario directly involves data modification, not denial of actions.
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 — The CIA triad consists of Confidentiality, Integrity, and Availability. Integrity ensures that data is accurate and not altered by unauthorized parties. In this scenario, the attacker modified data, so integrity is the principle that was violated.
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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