- A
SSH: Encrypted remote management; NTP: Time synchronization; DNS: Name resolution; AAA: Authentication, authorization, and accounting; Syslog: Event logging
This option correctly pairs each IP service with its primary purpose: SSH provides encrypted remote access, NTP synchronizes clocks, DNS resolves names to IP addresses, AAA manages access control, and Syslog collects log messages.
- B
SSH: Unencrypted remote management; NTP: File transfer; DNS: IP address assignment; AAA: Encryption; Syslog: Time synchronization
Why wrong: This is incorrect because SSH is encrypted (not unencrypted), NTP is for time synchronization (not file transfer), DNS resolves names (not assigns IP addresses), AAA provides authentication/authorization/accounting (not encryption), and Syslog is for logging (not time sync).
- C
SSH: Encrypted remote management; NTP: Time synchronization; DNS: IP address assignment; AAA: Event logging; Syslog: Authentication
Why wrong: This is incorrect because DNS resolves domain names to IP addresses (not assigns IP addresses), AAA provides authentication/authorization/accounting (not event logging), and Syslog is for event logging (not authentication).
- D
SSH: Unencrypted remote management; NTP: Time synchronization; DNS: Name resolution; AAA: Encryption; Syslog: Event logging
Why wrong: This is incorrect because SSH provides encrypted remote management (not unencrypted), and AAA provides authentication/authorization/accounting (not encryption).
Quick Answer
The answer is SSH for encrypted remote management, NTP for time synchronization, DNS for name resolution, AAA for authentication, authorization, and accounting, and Syslog for event logging. These mappings are correct because each service fulfills a distinct operational need in a network: SSH provides a secure, encrypted channel for remote device administration, NTP ensures all devices share a consistent timestamp for accurate logging and troubleshooting, DNS translates human-readable domain names into machine-routable IP addresses, AAA controls access and tracks user actions, and Syslog centralizes event messages for monitoring. On the CCNA 200-301 v2 exam, this topic tests your ability to distinguish core network services from similar-sounding protocols—a common trap is confusing Syslog with SNMP, since both involve monitoring, but Syslog specifically handles event logging while SNMP polls for metrics. A helpful memory tip is to think of the acronym “SAND” for the first letters of SSH, AAA, NTP, and DNS, then add Syslog as the “log” that records it all.
CCNA Network Services and Security Practice Question
This 200-301 practice question tests your understanding of network services and security. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: dNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently.. 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 common IP service to its primary purpose.
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"primary"Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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
SSH: Encrypted remote management; NTP: Time synchronization; DNS: Name resolution; AAA: Authentication, authorization, and accounting; Syslog: Event logging
DNS maps domain names to IP addresses. DHCP automates IP configuration. NTP synchronizes clocks across network devices. Syslog collects and stores event messages from network devices for monitoring and troubleshooting.
Key principle: DNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SSH: Encrypted remote management; NTP: Time synchronization; DNS: Name resolution; AAA: Authentication, authorization, and accounting; Syslog: Event logging
Why this is correct
This option correctly pairs each IP service with its primary purpose: SSH provides encrypted remote access, NTP synchronizes clocks, DNS resolves names to IP addresses, AAA manages access control, and Syslog collects log messages.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
DNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently.
- ✗
SSH: Unencrypted remote management; NTP: File transfer; DNS: IP address assignment; AAA: Encryption; Syslog: Time synchronization
- ✗
SSH: Encrypted remote management; NTP: Time synchronization; DNS: IP address assignment; AAA: Event logging; Syslog: Authentication
- ✗
SSH: Unencrypted remote management; NTP: Time synchronization; DNS: Name resolution; AAA: Encryption; Syslog: Event logging
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.
✓SSH: Encrypted remote management; NTP: Time synchronization; DNS: Name resolution; AAA: Authentication, authorization, and accounting; Syslog: Event loggingCorrect answer▾
Why this is correct
This option correctly pairs each IP service with its primary purpose: SSH provides encrypted remote access, NTP synchronizes clocks, DNS resolves names to IP addresses, AAA manages access control, and Syslog collects log messages.
✗SSH: Unencrypted remote management; NTP: File transfer; DNS: IP address assignment; AAA: Encryption; Syslog: Time synchronizationWrong answer — click to see why▾
Why this is wrong here
Each service is matched to an incorrect purpose, showing fundamental misunderstandings of their functions.
Why candidates choose this
Candidates might confuse SSH with Telnet (unencrypted), NTP with TFTP (file transfer), DNS with DHCP (IP assignment), AAA with encryption protocols, and Syslog with NTP.
✗SSH: Encrypted remote management; NTP: Time synchronization; DNS: IP address assignment; AAA: Event logging; Syslog: AuthenticationWrong answer — click to see why▾
Why this is wrong here
DNS and DHCP are confused; AAA and Syslog roles are swapped.
Why candidates choose this
Candidates often mix up DNS and DHCP, and may think AAA is for logging because it involves accounting, while Syslog might be associated with authentication logs.
✗SSH: Unencrypted remote management; NTP: Time synchronization; DNS: Name resolution; AAA: Encryption; Syslog: Event loggingWrong answer — click to see why▾
Why this is wrong here
SSH is confused with Telnet, and AAA is confused with encryption protocols like IPsec.
Why candidates choose this
Candidates may think SSH is unencrypted due to confusion with Telnet, and may believe AAA includes encryption because it secures access.
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
Be careful not to confuse SSH with Telnet (unencrypted), DNS with DHCP (IP address assignment), or AAA with encryption or logging. Also, remember that NTP is for time synchronization, not file transfer.
Detailed technical explanation
How to think about this question
DNS is a hierarchical distributed database that maps domain names to IP addresses, allowing users to access resources using easy-to-remember names instead of numeric IPs. In Cisco networks, DNS is configured on routers and switches to resolve hostnames for management and routing purposes. The DNS client queries a DNS server, which responds with the corresponding IP address, enabling communication across the network. DHCP automates IP address allocation by leasing addresses to clients for a specified period. Cisco devices can act as DHCP servers or relay agents, forwarding requests to centralized DHCP servers. DHCP reduces configuration errors and administrative overhead by dynamically assigning IP addresses, subnet masks, default gateways, and DNS server information. This service is vital in scalable networks where manual IP management is impractical. NTP maintains accurate time synchronization across all network devices, which is crucial for log timestamping, security protocols, and coordination of time-dependent processes. Cisco devices can be configured as NTP clients or servers, synchronizing with authoritative time sources. Syslog collects event messages from devices and forwards them to centralized servers, enabling administrators to monitor network health and diagnose issues efficiently. Misunderstanding these services' roles can lead to misconfiguration and network problems, so clear differentiation is critical in CCNA-level networking.
KKey Concepts to Remember
- DNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently.
- DHCP automatically assigns IP addresses and network parameters to hosts, reducing manual configuration errors and administrative overhead.
- NTP synchronizes clocks across network devices to ensure consistent timestamps and support time-sensitive operations.
- Syslog centralizes logging by collecting system messages from multiple devices, aiding in network monitoring and troubleshooting.
- Cisco devices can function as clients or servers for these IP services, depending on network design and configuration requirements.
- Each IP service has a distinct role; confusing their functions leads to misconfiguration and network management issues.
- Understanding the separation of IP services is essential for troubleshooting and designing scalable Cisco networks.
- Correctly matching IP services to their purposes helps avoid common exam traps and ensures accurate network operation.
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
DNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently.
Real-world example
How this comes up in practice
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
Got this wrong? Here's your next step.
Review dNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently., 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 — DNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently..
What is the correct answer to this question?
The correct answer is: SSH: Encrypted remote management; NTP: Time synchronization; DNS: Name resolution; AAA: Authentication, authorization, and accounting; Syslog: Event logging — DNS maps domain names to IP addresses. DHCP automates IP configuration. NTP synchronizes clocks across network devices. Syslog collects and stores event messages from network devices for monitoring and troubleshooting.
What should I do if I get this 200-301 question wrong?
Review dNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently., then practise related 200-301 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
DNS resolves human-readable hostnames into IP addresses, enabling devices to locate network resources efficiently.
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Last reviewed: Apr 12, 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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