Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
Which term in the CIA triad refers to ensuring systems and data remain accessible when needed?
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
Availability
This is correct because availability is about ensuring systems and data can be accessed when needed.
B
Distractor review
Integrity
This is wrong because integrity focuses on protecting against unauthorized alteration.
C
Distractor review
Accounting
This is wrong because accounting is part of AAA, not the CIA triad.
D
Distractor review
Confidentiality
This is wrong because confidentiality focuses on preventing unauthorized disclosure.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A frequent exam trap is confusing availability with confidentiality or integrity because all three belong to the CIA triad. Candidates may incorrectly choose confidentiality, thinking about data protection, or integrity, focusing on data accuracy. However, availability specifically means ensuring systems and data remain accessible when needed. Misreading the question or overthinking the triad components leads to selecting the wrong term. Remember, availability is about uptime and access, not secrecy or correctness, which are confidentiality and integrity respectively.
Technical deep dive
How to think about this question
The CIA triad is a foundational model in cybersecurity that stands for Confidentiality, Integrity, and Availability. Availability specifically refers to ensuring that authorized users have reliable and timely access to data and network resources whenever needed. In Cisco networking and CCNA contexts, availability means that network devices, services, and data remain operational and reachable, preventing downtime or denial-of-service conditions that could disrupt business operations. When evaluating security controls and network design, availability is assessed by how well systems resist outages, overloads, or attacks that could block access. Cisco technologies such as redundant links, failover protocols, and quality of service (QoS) mechanisms help maintain availability by minimizing disruptions. The decision process for identifying availability in exam questions involves recognizing that it is about access and uptime, not about data secrecy (confidentiality) or data accuracy (integrity). A common exam trap is confusing availability with confidentiality or integrity because all three are part of the CIA triad. Candidates often mistakenly select confidentiality, thinking about protecting data, or integrity, focusing on data correctness. However, availability strictly concerns whether systems and data can be accessed when needed. Practically, network engineers use availability concepts to design resilient networks that prevent downtime, ensuring business continuity and user productivity.
KKey Concepts to Remember
- Availability ensures authorized users can access network resources and data whenever needed without interruption or delay.
- Confidentiality protects data from unauthorized disclosure but does not guarantee access or uptime.
- Integrity prevents unauthorized modification of data, ensuring information remains accurate and trustworthy.
- Cisco network designs use redundancy and failover protocols to maintain availability and prevent service outages.
- Availability is compromised by denial-of-service attacks, hardware failures, or misconfigurations that block access.
- The CIA triad components serve distinct security goals: confidentiality, integrity, and availability each address different risks.
- Exam questions about the CIA triad require distinguishing availability as the term related to system and data accessibility.
- Availability focuses on usability and uptime, which is critical for business continuity and network reliability.
TExam Day Tips
- 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.
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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 router learns the same prefix from both OSPF and EIGRP. Which route is installed by default?
Question 2
A router shows this output: R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.1.1.2 1 FULL/DR 00:00:34 192.168.12.2 GigabitEthernet0/0 10.1.1.3 1 2WAY/DROTHER 00:00:39 192.168.12.3 GigabitEthernet0/0 Which statement is correct?
Question 3
What is the OSPF metric called?
Question 4
A non-root switch has two uplinks toward the root bridge. One path has a lower total STP cost than the other. What role will the lower-cost uplink have?
Question 5
A router interface applies this ACL inbound: 10 deny tcp any any eq 80 20 permit ip any any A user reports that web browsing to a server by IP address fails, but ping works. Which statement best explains the behavior?
Question 6
A router learns route 198.51.100.0/24 from OSPF with AD 110 and also has a static route to the same prefix configured with AD 150. Which route is installed?
FAQ
Questions learners often ask
What does this 200-301 question test?
Availability ensures authorized users can access network resources and data whenever needed without interruption or delay.
What is the correct answer to this question?
The correct answer is: Availability — The term is availability. In plain language, availability means that authorized users should be able to reach systems, services, and data when they actually need them. If a service is down, overwhelmed, or otherwise unreachable, availability has been affected. This is different from confidentiality, which focuses on preventing unauthorized disclosure, and integrity, which focuses on preventing unauthorized change. This distinction matters because the CIA triad appears often in security foundations and exam questions. Availability is not about whether data is secret or whether it has been altered; it is about whether the service is usable. That is why availability is the best answer here.
What should I do if I get this 200-301 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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