A company is implementing security controls to protect data during transmission between their on-premises database and a cloud storage service. They decide to use TLS encryption. Which security goal is primarily addressed by ensuring that data is not altered during transit?
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
Availability
Availability focuses on ensuring systems and data are accessible when needed. While TLS can help prevent denial-of-service attacks indirectly, its primary purpose is not to ensure availability.
Best answer
Integrity
Correct. Integrity ensures that data has not been altered during transit. TLS includes message authentication codes to verify that the data received is exactly what was sent, preventing unauthorized changes.
Distractor review
Confidentiality
Confidentiality ensures that data is not accessible to unauthorized viewers. TLS does provide confidentiality via encryption, but the scenario explicitly states the goal is to prevent alteration, which is a property of integrity, not confidentiality.
Distractor review
Non-repudiation
Non-repudiation ensures that an action cannot be denied by the party that performed it, often using digital signatures. TLS alone does not provide non-repudiation; integrity checks only detect unauthorized changes, not prove who made them.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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.
Question 1
A company must retain all customer contracts for 10 years to comply with industry regulations. After 10 years, the contracts must be permanently deleted. Which Microsoft Purview solution should be used to automate this process?
Question 2
A company uses a cloud-based SaaS (Software as a Service) application for customer relationship management. According to the shared responsibility model, which security responsibility is primarily handled by the customer?
Question 3
A company runs a mix of on-premises servers and Azure virtual machines. They deploy Microsoft Defender for Endpoint on all servers. The security team wants to create custom queries to hunt for a specific attack pattern that involves a sequence of events across multiple machines, such as a PowerShell script being downloaded and then executed on several servers. They need to write their own detection rules based on advanced hunting data. Which Microsoft 365 Defender capability should they use?
Question 4
A company runs a consumer-facing e-commerce website and wants to allow customers to sign in using their existing social media accounts such as Google, Facebook, or LinkedIn. Which Microsoft Entra ID solution should they implement?
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?
Read the scenario before looking for a memorised answer.
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 not tampered with or altered during transmission. TLS uses cryptographic checksums (MACs) to provide integrity, guaranteeing that any modification to the data will be detected. Confidentiality (ensuring data is not read by unauthorized parties) is also provided by TLS, but the question specifically asks about preventing alteration, which is the integrity goal. Availability is about ensuring systems are operational, and non-repudiation is about proving actions, neither of which is primarily addressed by the encryption and integrity checks of TLS.
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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