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Question 511 of 1,052
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CCNA Practice Question: Which TWO statements accurately describe the…
This 200-301 practice question tests your understanding of 200-301 exam topics. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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.
Which TWO statements accurately describe the characteristics of NETCONF and RESTCONF for programmatic network configuration?
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
✓
NETCONF uses XML-encoded RPCs over a secure transport such as SSH or TLS.
NETCONF uses XML-based RPCs over SSH (or TLS) and supports operations like get-config, edit-config, and commit. RESTCONF uses HTTP methods (GET, POST, PUT, DELETE) and supports both XML and JSON encoding. Both use YANG data models to define the structure of configuration and operational data. Option A is incorrect because NETCONF does not use HTTP; it uses SSH. Option C is incorrect because NETCONF does not natively support JSON; it primarily uses XML. Option E is incorrect because RESTCONF does not require a separate commit operation; changes are applied immediately.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
NETCONF uses HTTP methods such as GET, POST, PUT, and DELETE to manipulate configuration data.
- ✓
NETCONF uses XML-encoded RPCs over a secure transport such as SSH or TLS.
- ✓
RESTCONF supports both XML and JSON encoding and uses HTTP methods.
- ✓
Both NETCONF and RESTCONF rely on YANG data models to define the structure of configuration and operational data.
Why this is correct
YANG is the data modeling language used by both NETCONF and RESTCONF to define the hierarchical structure of data that can be configured or retrieved from network devices.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
NETCONF uses a separate commit operation to apply changes, while RESTCONF uses a similar commit mechanism.
Why it's wrong here
NETCONF has a distinct commit operation to apply candidate configuration changes, but RESTCONF does not have a commit operation; changes are applied immediately with each HTTP request.
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.
✓NETCONF uses XML-encoded RPCs over a secure transport such as SSH or TLS.Correct answer▾
Why this is correct
NETCONF encodes operations in XML and sends them as RPCs over a secure connection (SSH or TLS). This is a core characteristic of NETCONF.
✗NETCONF uses HTTP methods such as GET, POST, PUT, and DELETE to manipulate configuration data.Wrong answer — click to see why▾
Why this is wrong here
This describes RESTCONF, not NETCONF. NETCONF does not use HTTP methods; it uses RPCs over SSH or TLS.
✗NETCONF uses a separate commit operation to apply changes, while RESTCONF uses a similar commit mechanism.Wrong answer — click to see why▾
Why this is wrong here
RESTCONF does not use a commit mechanism; changes take effect immediately. NETCONF does have a commit operation, but the statement incorrectly says RESTCONF has a similar mechanism.
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: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 200-301 NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this 200-301 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: NETCONF uses XML-encoded RPCs over a secure transport such as SSH or TLS. — NETCONF uses XML-based RPCs over SSH (or TLS) and supports operations like get-config, edit-config, and commit. RESTCONF uses HTTP methods (GET, POST, PUT, DELETE) and supports both XML and JSON encoding. Both use YANG data models to define the structure of configuration and operational data. Option A is incorrect because NETCONF does not use HTTP; it uses SSH. Option C is incorrect because NETCONF does not natively support JSON; it primarily uses XML. Option E is incorrect because RESTCONF does not require a separate commit operation; changes are applied immediately.
What should I do if I get this 200-301 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 200-301 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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