The answer is that the interface GigabitEthernet1 is enabled and configured with the IPv4 address 192.168.1.1/24. This is correct because the RESTCONF response, retrieved via a GET request to the ietf-interfaces YANG data model, returns a JSON object where the "enabled": true field confirms the interface is administratively up, and the "ietf-ip:ipv4" block shows the address and netmask—a netmask of 255.255.255.0 directly translates to a /24 prefix. On the ENCOR 350-401 exam, this question tests your ability to interpret RESTCONF interface retrieval output, a common scenario for verifying device configuration programmatically. A frequent trap is confusing the "type" field (which indicates the interface type, like ethernetCsmacd) with the operational status; remember that "enabled" is the administrative state, not the line protocol. Memory tip: Think of RESTCONF as reading a JSON menu—look for "enabled": true to know the dish is ready, and check the "ip" and "netmask" keys for the address recipe.
CCNP Ansible Automation Practice Question
This 350-401 practice question tests your understanding of ansible automation. 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. 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.
A RESTCONF request is sent to a Cisco IOS-XE device to retrieve interface statistics:
GET /restconf/data/ietf-interfaces:interfaces/interface=GigabitEthernet1
Accept: application/yang-data+json
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The interface GigabitEthernet1 is enabled and has an IPv4 address of 192.168.1.1/24.
The response shows the interface configuration, including its name, type, enabled status, and IPv4 address. The correct answer correctly interprets the JSON structure.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
The interface GigabitEthernet1 is enabled and has an IPv4 address of 192.168.1.1/24.
Why this is correct
The 'enabled' field is true, and the IPv4 address with netmask indicates /24.
The interface is disabled because the 'enabled' field is missing.
Why it's wrong here
The 'enabled' field is present and set to true.
✗
The response indicates an error because the interface type is incorrect.
Why it's wrong here
The type 'ethernetCsmacd' is correct for Ethernet interfaces.
✗
The response shows that the interface has no IP address configured.
Why it's wrong here
The IPv4 address is present.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
CIDR notation defines the prefix length.
Block size helps identify subnet boundaries.
Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
The required host count determines the smallest suitable subnet.
TExam Day Tips
→Write the block size before choosing the subnet.
→Check whether the question asks for hosts, subnets or a specific address range.
→Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related 350-401 subnetting questions on CIDR, address ranges, and subnet selection.
Ansible Automation — This question tests Ansible Automation — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: The interface GigabitEthernet1 is enabled and has an IPv4 address of 192.168.1.1/24. — The response shows the interface configuration, including its name, type, enabled status, and IPv4 address. The correct answer correctly interprets the JSON structure.
What should I do if I get this 350-401 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related 350-401 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Question Discussion
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