Question 1mediummultiple choice
Full question →Given the JSON snippet below, what is the value of hostname?
{
"device": {
"hostname": "R1",
"mgmt_ip": "192.0.2.10"
}
}mediummultiple choiceObjective-mapped
Given the JSON snippet below, what is the value of hostname?
{
"device": {
"hostname": "R1",
"mgmt_ip": "192.0.2.10"
}
}Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
device
device is the object name, not the hostname value.
B
Distractor review
hostname
hostname is the key name, not the value.
C
Best answer
R1
Correct. R1 is the value assigned to hostname.
D
Distractor review
192.0.2.10
That is the management IP value.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is mistaking the JSON key "hostname" for its value or confusing the parent object name "device" with the hostname itself. Candidates might select "hostname" as the answer because it appears prominently, but it is only the key name, not the actual hostname value. Another tempting mistake is choosing the management IP address "192.0.2.10" since it is also present in the JSON snippet, but this represents the device's IP, not its hostname. Understanding the difference between keys and values in JSON is critical to avoid these errors.
Technical deep dive
How to think about this question
In Cisco networking and automation contexts, JSON (JavaScript Object Notation) is a widely used data format for representing structured information such as device configurations. The JSON snippet in the question shows a hierarchical structure where the key "device" contains an object with keys "hostname" and "mgmt_ip". The value associated with the key "hostname" is "R1", which represents the device's name or identifier in the network. When parsing JSON data for network automation or programmability tasks, the key-value pairs must be correctly interpreted. The key "hostname" is a label, and its corresponding value "R1" is the actual hostname string assigned to the device. This value is critical for network identification, device management, and automation scripts that rely on device names to execute commands or gather information. A common exam trap is confusing keys with values or misreading the JSON structure. For example, mistaking "hostname" as the value rather than the key, or selecting the parent object name "device" as the hostname. Understanding JSON syntax and the distinction between keys and values is essential for correctly extracting configuration data in Cisco automation scenarios.
KKey Concepts to Remember
- JSON uses key-value pairs where keys are labels and values are the actual data assigned to those keys in network device configurations.
- The hostname key in a device configuration JSON object specifies the device's name used for identification and management.
- Network automation tools parse JSON data to extract device attributes like hostname and management IP for configuration and monitoring.
- Confusing JSON keys with their values leads to incorrect interpretation of device configuration data in automation workflows.
- The hostname value is a string that uniquely identifies a device within a network topology or management system.
- Understanding JSON structure is essential for correctly reading and using device configuration data in Cisco programmability tasks.
- The management IP address is a separate key-value pair used for device connectivity, distinct from the hostname.
- Correctly identifying the hostname value supports accurate device targeting in network automation and programmability.
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.
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Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
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Question 2
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Question 3
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Question 4
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Question 5
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FAQ
Questions learners often ask
What does this 200-301 question test?
JSON uses key-value pairs where keys are labels and values are the actual data assigned to those keys in network device configurations.
What is the correct answer to this question?
The correct answer is: R1 — The key hostname inside the device object has the value R1.
What should I do if I get this 200-301 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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