Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A financial institution uses digital signatures to ensure that a transaction record has not been altered after it was processed. Which security principle is primarily addressed?
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
A. Confidentiality
Confidentiality is about preventing unauthorized access to information, not about ensuring data has not been altered.
B
Best answer
B. Integrity
Integrity ensures that data has not been tampered with or altered, which is directly addressed by digital signatures.
C
Distractor review
C. Availability
Availability ensures that systems and data are accessible when needed, which is not the primary focus of digital signatures.
D
Distractor review
D. Non-repudiation
Non-repudiation prevents a party from denying an action, but the main purpose of digital signatures in this scenario is to verify data integrity, not to prove who sent it.
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 2
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Question 5
A company has a hybrid identity environment with Active Directory synchronizing to Microsoft Entra ID. They want users to be able to reset their own on-premises passwords via the cloud SSPR portal. What is the minimum license required for this capability?
Question 6
A company uses a cloud-based Customer Relationship Management (CRM) system that is delivered as Software-as-a-Service (SaaS). According to the shared responsibility model, which security responsibility is primarily handled by the customer?
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: B. Integrity — Digital signatures provide both integrity and non-repudiation, but the primary goal in this scenario is to verify that the record has not been altered, which is integrity. Option B is correct.
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.
Discussion
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