This 200-301 practice question tests your understanding of network services and security. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: the confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
What does the confidentiality objective of the CIA triad focus on?
Preventing unauthorized changes to data
Why wrong: That is integrity.
Ensuring systems are reachable when needed
Why wrong: That is availability.
Preventing unauthorized disclosure of information
Correct. That defines confidentiality.
Providing authentication and accounting only
Why wrong: Those can support security, but they are not the definition of confidentiality.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Preventing unauthorized disclosure of information
Confidentiality is about preventing unauthorized disclosure of information.
Key principle: The confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Preventing unauthorized changes to data
Why it's wrong here
That is integrity.
When this WOULD be correct
If the question were to ask about the integrity objective of the CIA triad, then option A would be correct, as it would specifically address the need to maintain the accuracy and trustworthiness of data against unauthorized modifications.
Ensuring systems are reachable when needed
Why it's wrong here
That is availability.
When this WOULD be correct
If the question were to focus on the availability aspect of the CIA triad, asking about measures to ensure systems remain operational during peak loads or attacks, then option B would be the correct answer, as it directly relates to system accessibility.
Preventing unauthorized disclosure of information
Why this is correct
Correct. That defines confidentiality.
Related concept
The confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy.
Providing authentication and accounting only
Why it's wrong here
Those can support security, but they are not the definition of confidentiality.
When this WOULD be correct
If the question were to ask about the primary functions of security controls in an access management system, particularly those that ensure users are properly authenticated and their actions are logged, then option D would be correct as it directly relates to those functions.
Option-by-option analysis
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
Why this is correct
Correct. That defines confidentiality.
Why this is wrong here
Option A is incorrect because it describes integrity, which focuses on preventing unauthorized changes to data, rather than confidentiality, which is about protecting information from unauthorized access.
★ When this WOULD be the correct answer
If the question were to ask about the integrity objective of the CIA triad, then option A would be correct, as it would specifically address the need to maintain the accuracy and trustworthiness of data against unauthorized modifications.
Why candidates choose this
Candidates might choose this option due to confusion between the concepts of confidentiality and integrity, as both are critical components of information security and may overlap in practical applications.
Why this is wrong here
Option B is incorrect because the confidentiality objective of the CIA triad specifically addresses the protection of information from unauthorized access, not the availability of systems. Availability pertains to ensuring systems are operational and accessible when needed.
★ When this WOULD be the correct answer
If the question were to focus on the availability aspect of the CIA triad, asking about measures to ensure systems remain operational during peak loads or attacks, then option B would be the correct answer, as it directly relates to system accessibility.
Why candidates choose this
Candidates may choose this option due to a misunderstanding of the CIA triad's components, conflating confidentiality with availability, especially if they recall that system uptime is crucial for overall security.
Why this is wrong here
Option D is incorrect because it focuses on authentication and accounting, which are related to identity verification and access control, rather than the confidentiality objective of the CIA triad that specifically addresses unauthorized disclosure of information.
★ When this WOULD be the correct answer
If the question were to ask about the primary functions of security controls in an access management system, particularly those that ensure users are properly authenticated and their actions are logged, then option D would be correct as it directly relates to those functions.
Why candidates choose this
Candidates may choose this option because they associate authentication and accounting with security measures, mistakenly believing these concepts are integral to maintaining confidentiality, thus creating a knowledge gap regarding the specific focus of the CIA triad.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
A common exam trap is confusing confidentiality with integrity or availability. For example, option A describes integrity, which protects data from unauthorized changes, not unauthorized disclosure. Option B refers to availability, ensuring systems are reachable, which is unrelated to confidentiality. Option D mentions authentication and accounting, which support security but do not define confidentiality. Candidates often mistake these related concepts for confidentiality because they all contribute to overall security, but only confidentiality specifically focuses on preventing unauthorized information disclosure.
Detailed technical explanation
Confidentiality is one of the three core objectives of the CIA triad, which stands for Confidentiality, Integrity, and Availability. It specifically aims to protect sensitive information from being accessed or disclosed by unauthorized individuals or systems. In networking, confidentiality is enforced through mechanisms such as encryption, access control lists (ACLs), and authentication protocols that restrict data visibility to only authorized users. This ensures that sensitive data like passwords, personal information, or proprietary business data remains private during transmission and storage. In the context of Cisco networking and the CCNA exam, confidentiality is implemented using technologies like IPsec VPNs, Secure Shell (SSH), and ACLs that filter traffic based on permissions. The decision process to maintain confidentiality involves verifying user identities, encrypting data in transit, and limiting access to network resources. While authentication and accounting are important for verifying identities and tracking usage, they are supporting functions rather than the definition of confidentiality itself. Understanding these distinctions helps correctly identify confidentiality-related concepts in exam questions. A common confusion arises when candidates mistake confidentiality for integrity or availability. Integrity protects data from unauthorized modification, while availability ensures systems remain operational and accessible. Practical network security requires balancing all three objectives, but the exam question specifically targets confidentiality’s role in preventing unauthorized data disclosure. Recognizing this focus helps avoid exam traps and aligns with Cisco’s approach to securing network communications and data privacy.
Key takeaway
The confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy.
Real-world example
A practitioner preparing for the 200-301 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. The confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Review the confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy., then practise related 200-301 questions on the same topic to reinforce the concept.
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FAQ
Network Services and Security — This question tests Network Services and Security — The confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy..
The correct answer is: Preventing unauthorized disclosure of information — Confidentiality is about preventing unauthorized disclosure of information.
Review the confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy., then practise related 200-301 questions on the same topic to reinforce the concept.
The confidentiality objective in the CIA triad prevents unauthorized disclosure of sensitive information to protect data privacy.
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Last reviewed: Apr 12, 2026
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