- A
DNS - remembering IP addresses; DHCP - manual IP configuration; FTP - file transfers; SSH - encrypted remote access; RADIUS - network access; TACACS+ - device administration
This option correctly matches each service to its primary problem: DNS resolves hostnames to IPs, DHCP automates IP assignment, FTP transfers files, SSH secures remote access, RADIUS authenticates network users, and TACACS+ authorizes device commands.
- B
DNS - file transfers; DHCP - encrypted remote access; FTP - remembering IP addresses; SSH - manual IP configuration; RADIUS - device administration; TACACS+ - network access
Why wrong: This option is incorrect because it misassigns each service's primary function. DNS does not handle file transfers, DHCP does not provide encryption, FTP does not resolve hostnames, SSH does not assign IPs, RADIUS is not for device administration, and TACACS+ is not for network access.
- C
DNS - encrypted remote access; DHCP - file transfers; FTP - manual IP configuration; SSH - remembering IP addresses; RADIUS - device administration; TACACS+ - network access
Why wrong: This option is incorrect because it swaps the purposes of several services. DNS does not provide encryption, DHCP does not transfer files, FTP does not assign IPs, SSH does not resolve names, and RADIUS/TACACS+ roles are reversed.
- D
DNS - manual IP configuration; DHCP - remembering IP addresses; FTP - encrypted remote access; SSH - file transfers; RADIUS - network access; TACACS+ - device administration
Why wrong: This option is incorrect because it misattributes the core problems. DNS does not assign IPs, DHCP does not resolve names, FTP does not encrypt sessions, SSH does not transfer files, and while RADIUS and TACACS+ are correctly paired, the other mismatches make this option wrong.
CCNA Network Services and Security Practice Question
This 200-301 practice question tests your understanding of network services and security. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: dHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management.. 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 service to the kind of problem it most directly helps solve.
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
DNS - remembering IP addresses; DHCP - manual IP configuration; FTP - file transfers; SSH - encrypted remote access; RADIUS - network access; TACACS+ - device administration
DNS solves the problem of remembering IP addresses. DHCP eliminates manual IP configuration. FTP enables file transfers. SSH provides encrypted remote access. RADIUS and TACACS+ are AAA protocols, with RADIUS commonly used for network access and TACACS+ for device administration.
Key principle: DHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
DNS - remembering IP addresses; DHCP - manual IP configuration; FTP - file transfers; SSH - encrypted remote access; RADIUS - network access; TACACS+ - device administration
Why this is correct
This option correctly matches each service to its primary problem: DNS resolves hostnames to IPs, DHCP automates IP assignment, FTP transfers files, SSH secures remote access, RADIUS authenticates network users, and TACACS+ authorizes device commands.
Related concept
DHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management.
- ✗
DNS - file transfers; DHCP - encrypted remote access; FTP - remembering IP addresses; SSH - manual IP configuration; RADIUS - device administration; TACACS+ - network access
Why it's wrong here
This option is incorrect because it misassigns each service's primary function. DNS does not handle file transfers, DHCP does not provide encryption, FTP does not resolve hostnames, SSH does not assign IPs, RADIUS is not for device administration, and TACACS+ is not for network access.
- ✗
DNS - encrypted remote access; DHCP - file transfers; FTP - manual IP configuration; SSH - remembering IP addresses; RADIUS - device administration; TACACS+ - network access
- ✗
DNS - manual IP configuration; DHCP - remembering IP addresses; FTP - encrypted remote access; SSH - file transfers; RADIUS - network access; TACACS+ - device administration
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.
✓DNS - remembering IP addresses; DHCP - manual IP configuration; FTP - file transfers; SSH - encrypted remote access; RADIUS - network access; TACACS+ - device administrationCorrect answer▾
Why this is correct
This option correctly matches each service to its primary problem: DNS resolves hostnames to IPs, DHCP automates IP assignment, FTP transfers files, SSH secures remote access, RADIUS authenticates network users, and TACACS+ authorizes device commands.
✗DNS - file transfers; DHCP - encrypted remote access; FTP - remembering IP addresses; SSH - manual IP configuration; RADIUS - device administration; TACACS+ - network accessWrong answer — click to see why▾
Why this is wrong here
The specific factual error is that each service is paired with a problem it does not solve, contradicting standard protocol definitions.
Why candidates choose this
Candidates might confuse the roles of RADIUS and TACACS+ or think FTP is related to name resolution due to its use of hostnames.
✗DNS - encrypted remote access; DHCP - file transfers; FTP - manual IP configuration; SSH - remembering IP addresses; RADIUS - device administration; TACACS+ - network accessWrong answer — click to see why▾
Why this is wrong here
The specific factual error is that each service is matched to an unrelated problem, showing a fundamental misunderstanding of each protocol's function.
Why candidates choose this
Candidates may think SSH is for name resolution because it uses hostnames, or that DHCP is for file transfers because it involves data exchange.
✗DNS - manual IP configuration; DHCP - remembering IP addresses; FTP - encrypted remote access; SSH - file transfers; RADIUS - network access; TACACS+ - device administrationWrong answer — click to see why▾
Why this is wrong here
The specific factual error is that DNS and DHCP are swapped, and FTP and SSH are swapped, showing confusion between their primary functions.
Why candidates choose this
Candidates might think DNS assigns IPs because it is often used with DHCP, or that FTP provides encryption because it can use SSL/TLS (FTPS), but the question asks for the most direct problem solved.
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
A common trap is confusing the roles of RADIUS and TACACS+, or thinking that services like DNS or DHCP have overlapping functions. Remember that DNS resolves names, DHCP assigns IPs, FTP transfers files, SSH secures remote access, RADIUS handles network access, and TACACS+ handles device administration.
Detailed technical explanation
How to think about this question
IP services such as DHCP, DNS, NTP, and syslog are foundational to network operations and troubleshooting in Cisco environments. DHCP (Dynamic Host Configuration Protocol) automates the assignment of IP addresses and other network parameters to hosts, reducing manual configuration errors and simplifying network management. DNS (Domain Name System) translates human-friendly domain names into IP addresses, enabling users and devices to locate resources without memorizing numeric addresses. NTP (Network Time Protocol) ensures all network devices maintain synchronized clocks, which is crucial for accurate logging, security protocols, and time-sensitive applications. Syslog centralizes the collection of log messages from multiple devices, facilitating monitoring and troubleshooting by providing a single point for event analysis. The decision process for matching each service to a network problem relies on understanding the core function each service provides. If the issue is that hosts cannot obtain IP addresses automatically, DHCP is the relevant service. When name resolution fails, DNS is the service to check. If device clocks are inconsistent, leading to unreliable timestamps in logs or authentication failures, NTP is the service to verify. For problems involving scattered or missing device logs, syslog is the service that consolidates these messages for easier analysis. This functional mapping is essential for Cisco CCNA exam scenarios, where recognizing the service that directly addresses the symptom leads to efficient troubleshooting. A frequent practical confusion arises when multiple services seem related to a symptom, such as assuming DHCP also handles name resolution or that syslog synchronizes time. In Cisco networks, these services are distinct and specialized. Misattributing a problem to the wrong service can delay resolution and cause exam errors. Understanding that DHCP handles IP addressing, DNS handles name resolution, NTP handles time synchronization, and syslog handles centralized logging helps avoid these pitfalls. In real-world networks, this clarity improves operational efficiency and aligns with Cisco best practices.
KKey Concepts to Remember
- DHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management.
- DNS resolves human-readable domain names into IP addresses, enabling devices to locate network resources without memorizing numeric addresses.
- NTP synchronizes clocks across network devices, ensuring consistent timestamps critical for logging accuracy and security protocols.
- Syslog centralizes logging by collecting messages from multiple devices into a single server, facilitating efficient monitoring and troubleshooting.
- Matching IP services to network problems requires understanding each service’s primary function rather than memorizing commands or syntax.
- In Cisco networks, DHCP does not perform name resolution; DNS is exclusively responsible for translating domain names to IP addresses.
- Accurate time synchronization via NTP is essential for correlating events across devices, especially when analyzing syslog messages.
- Effective troubleshooting starts by identifying which IP service directly addresses the observed symptom, improving problem resolution speed.
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
DHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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Review dHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management., then practise related 200-301 questions on the same topic to reinforce the concept.
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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 — DHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management..
What is the correct answer to this question?
The correct answer is: DNS - remembering IP addresses; DHCP - manual IP configuration; FTP - file transfers; SSH - encrypted remote access; RADIUS - network access; TACACS+ - device administration — DNS solves the problem of remembering IP addresses. DHCP eliminates manual IP configuration. FTP enables file transfers. SSH provides encrypted remote access. RADIUS and TACACS+ are AAA protocols, with RADIUS commonly used for network access and TACACS+ for device administration.
What should I do if I get this 200-301 question wrong?
Review dHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management., then practise related 200-301 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
DHCP automates the assignment of IP addresses and network parameters to hosts, preventing manual configuration errors and simplifying network management.
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Last reviewed: May 17, 2026
This 200-301 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-301 exam.
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