Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A hospital encrypts patient data stored in a database using AES-256 encryption. If an attacker manages to copy the database file, they cannot read the protected information. Which security goal is primarily achieved by this encryption measure?
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
Best answer
Confidentiality
Confidentiality ensures that sensitive data is not disclosed to unauthorized entities. Encryption transforms data into an unreadable format without the decryption key, thus protecting its confidentiality even if the physical storage is compromised.
B
Distractor review
Integrity
Integrity ensures that data has not been altered or tampered with. While some encryption methods provide integrity guarantees (e.g., authenticated encryption), the primary purpose of encrypting stored data is to protect its confidentiality, not its integrity.
C
Distractor review
Availability
Availability ensures that authorized users can access data when needed. Encryption does not inherently affect availability; in fact, if encryption keys are lost, availability can be negatively impacted. The scenario focuses on preventing unauthorized reads, not on ensuring access.
D
Distractor review
Auditability
Auditability refers to the ability to track and log access to data. Encryption itself does not provide logging or tracking; it is a separate control often complemented by audit logs.
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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Question 6
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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: Confidentiality — Encryption protects data from unauthorized disclosure, which is the definition of confidentiality. Integrity ensures data is not tampered with, availability ensures data is accessible when needed, and auditability tracks who accessed data. By making the data unreadable without the key, encryption directly supports confidentiality.
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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