- A
Phishing: A technique that uses deceptive messages to trick individuals into revealing sensitive information.
Phishing is a social engineering attack where attackers send fraudulent communications (often email) that appear to come from a reputable source, aiming to steal credentials or other sensitive data.
- B
Ransomware: A type of malware that encrypts a victim's files and demands payment for the decryption key.
Why wrong: This is incorrect because the description accurately defines ransomware, but the question asks for the term that matches 'a technique that uses deceptive messages to trick individuals into revealing sensitive information.'
- C
DDoS: An attack that overwhelms a target with traffic from multiple sources, causing service disruption.
Why wrong: This is incorrect because DDoS (Distributed Denial of Service) floods services with traffic, not deceptive messages for credential theft.
- D
MitM: An attack where the attacker secretly intercepts and relays communications between two parties.
Why wrong: This is incorrect because a Man-in-the-Middle (MitM) attack intercepts communications, not deceptive messages for credential theft.
Quick Answer
The answer is phishing, defined as a technique that uses deceptive messages to trick individuals into revealing sensitive information. This is correct because phishing exploits human psychology rather than technical vulnerabilities, often through emails or fake websites that mimic legitimate services to steal credentials or financial data. On the CCNA 200-301 v2 exam, this term appears in the context of matching security threats to their definitions, testing your ability to distinguish social engineering attacks from other risks like malware or denial-of-service. A common trap is confusing phishing with vishing (voice-based) or smishing (SMS-based), so remember that phishing specifically involves electronic messages. For the CIA triad, confidentiality prevents unauthorized disclosure, integrity prevents unauthorized modification, availability ensures systems are accessible when needed, and accounting records activity details. A useful memory tip: think of “phish” as a fraudulent lure in an email inbox, just like a fisherman’s lure in water.
CCNA Network Services and Security Practice Question
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: confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols.. 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.
Match each security-related term to its most accurate meaning.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Phishing: A technique that uses deceptive messages to trick individuals into revealing sensitive information.
Confidentiality ensures data is only accessible to authorized parties, directly matching 'protection against unauthorized disclosure.' Integrity safeguards data from tampering, aligning with 'protection against unauthorized modification.' Availability guarantees that systems and data are reachable when required, fitting 'ensuring systems and data can be accessed when needed.' Accounting provides a trail of user activity, corresponding to 'recording activity or usage details.' Each term maps precisely to its defined security objective in the CIA triad and operational security.
Key principle: Confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Phishing: A technique that uses deceptive messages to trick individuals into revealing sensitive information.
Why this is correct
Phishing is a social engineering attack where attackers send fraudulent communications (often email) that appear to come from a reputable source, aiming to steal credentials or other sensitive data.
Related concept
Confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols.
- ✗
Ransomware: A type of malware that encrypts a victim's files and demands payment for the decryption key.
Why it's wrong here
This is incorrect because the description accurately defines ransomware, but the question asks for the term that matches 'a technique that uses deceptive messages to trick individuals into revealing sensitive information.'
- ✗
DDoS: An attack that overwhelms a target with traffic from multiple sources, causing service disruption.
Why it's wrong here
This is incorrect because DDoS (Distributed Denial of Service) floods services with traffic, not deceptive messages for credential theft.
- ✗
MitM: An attack where the attacker secretly intercepts and relays communications between two parties.
Why it's wrong here
This is incorrect because a Man-in-the-Middle (MitM) attack intercepts communications, not deceptive messages for credential theft.
Option-by-option analysis
Why each answer is right or wrong
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.
✓Phishing: A technique that uses deceptive messages to trick individuals into revealing sensitive information.Correct answer▾
Why this is correct
Phishing is a social engineering attack where attackers send fraudulent communications (often email) that appear to come from a reputable source, aiming to steal credentials or other sensitive data.
✗Ransomware: A type of malware that encrypts a victim's files and demands payment for the decryption key.Wrong answer — click to see why▾
Why this is wrong here
Ransomware is malware that encrypts data for ransom, not a deceptive message technique.
Why candidates choose this
Candidates might confuse phishing with other malware types because both are common attack vectors.
✗DDoS: An attack that overwhelms a target with traffic from multiple sources, causing service disruption.Wrong answer — click to see why▾
Why this is wrong here
DDoS focuses on availability, not on tricking users into revealing information.
Why candidates choose this
Candidates may associate 'deceptive' with any attack that involves trickery, but DDoS is purely volumetric.
✗MitM: An attack where the attacker secretly intercepts and relays communications between two parties.Wrong answer — click to see why▾
Why this is wrong here
MitM is about eavesdropping or altering communications, not sending deceptive messages.
Why candidates choose this
Candidates might think MitM involves deception, but the deception is in the interception, not in the initial message.
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
Common exam trap: answer the scenario, not the keyword
Students often confuse Accounting with Authentication or Authorization; Accounting specifically involves recording what actions were taken, not granting or denying access.
Detailed technical explanation
How to think about this question
The core concepts of security in networking revolve around the CIA triad: Confidentiality, Integrity, and Availability, with Accounting often added as a fourth pillar. Confidentiality ensures that sensitive data is not disclosed to unauthorized users, which is critical in Cisco environments where access control lists (ACLs) and encryption protocols like IPsec are used to protect data in transit and at rest. Integrity guarantees that data remains unaltered during transmission or storage, which Cisco devices enforce through mechanisms like hashing and digital signatures. Availability ensures that network resources and services are accessible when needed, which Cisco technologies support through redundancy protocols and quality of service (QoS). In Cisco networking, understanding these terms helps in designing and troubleshooting secure networks. For example, ACLs primarily enforce confidentiality by restricting unauthorized access, while integrity is maintained by protocols such as Secure Shell (SSH) for management access. Availability is ensured by features like Hot Standby Router Protocol (HSRP) and Spanning Tree Protocol (STP) to prevent downtime. Accounting is implemented through logging and NetFlow, which track user activity and resource usage for auditing and compliance purposes. A common exam trap is confusing these terms or assuming they are interchangeable. For instance, a question might imply that availability means data is confidential, which is incorrect. Cisco exams expect precise understanding: confidentiality is about secrecy, integrity about correctness, availability about uptime, and accounting about tracking. Practically, network engineers must apply the right security control for each aspect to build robust Cisco networks that meet organizational security policies.
KKey Concepts to Remember
- Confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols.
- Integrity ensures data remains unaltered during transmission or storage, enforced by Cisco mechanisms such as hashing and digital signatures.
- Availability guarantees that network resources and services remain accessible, supported by Cisco redundancy protocols like HSRP and STP.
- Accounting records and logs user activity and resource usage for auditing and compliance, implemented via Cisco logging and NetFlow.
- Cisco ACLs primarily enforce confidentiality by restricting unauthorized access to network resources and data.
- Secure management protocols like SSH maintain integrity and confidentiality of administrative access in Cisco devices.
- Redundancy features in Cisco networks maintain availability by preventing single points of failure and ensuring continuous service.
- Confusing confidentiality with integrity or availability is a common exam mistake; each term addresses a distinct security goal in Cisco networking.
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.
Key takeaway
Confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols.
Real-world example
How this comes up in practice
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. Confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Review confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols., then practise related 200-301 questions on the same topic to reinforce the concept.
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Network Services and Security — study guide chapter
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FAQ
Questions learners often ask
What does this 200-301 question test?
Network Services and Security — This question tests Network Services and Security — Confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols..
What is the correct answer to this question?
The correct answer is: Phishing: A technique that uses deceptive messages to trick individuals into revealing sensitive information. — Confidentiality ensures data is only accessible to authorized parties, directly matching 'protection against unauthorized disclosure.' Integrity safeguards data from tampering, aligning with 'protection against unauthorized modification.' Availability guarantees that systems and data are reachable when required, fitting 'ensuring systems and data can be accessed when needed.' Accounting provides a trail of user activity, corresponding to 'recording activity or usage details.' Each term maps precisely to its defined security objective in the CIA triad and operational security.
What should I do if I get this 200-301 question wrong?
Review confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols., then practise related 200-301 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Confidentiality protects data by preventing unauthorized disclosure using Cisco technologies like ACLs and encryption protocols.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
2 more ways this is tested on 200-301
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Match each security concept to its most accurate meaning.
medium- ✓ A.Phishing: A social engineering attack that tricks users into revealing sensitive information such as usernames and passwords.
- B.Phishing: A type of malware that encrypts files and demands payment for decryption.
- C.Phishing: An attack that overwhelms a network with traffic to disrupt services.
- D.Phishing: An attack that intercepts communications between two parties to steal data.
Why A: Confidentiality ensures data is not disclosed to unauthorized parties; integrity prevents unauthorized modification of data; availability guarantees systems and data are accessible when needed; least privilege limits access rights to the minimum necessary. The correct matches reflect these core security principles.
Variation 2. Match each security term to its most accurate meaning.
medium- ✓ A.Phishing: An attack that uses deceptive emails or websites to trick users into revealing sensitive information.
- B.Phishing: An attack that encrypts a victim's data and demands payment for the decryption key.
- C.Phishing: An attack that overwhelms a server with traffic to make it unavailable to users.
- D.Phishing: An attack that intercepts communication between two parties to eavesdrop or alter data.
Why A: These are common security threats. Phishing, ransomware, DDoS, man-in-the-middle, zero-day, and social engineering each have distinct meanings as described.
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Last reviewed: Apr 12, 2026
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