This 200-301 practice question tests your understanding of ai and network operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: jSON represents data using key-value pairs and arrays, enabling structured and hierarchical data storage.. 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 network engineer queries a REST API and receives data in JSON format. Which statement about JSON is correct?
JSON is a transport protocol that replaces HTTPS
Why wrong: JSON is a data format, not a transport protocol.
JSON stores data as key-value pairs and arrays
That is the core structure used in JSON.
JSON can be used only with Cisco DNA Center
Why wrong: It is widely used across many platforms and APIs.
JSON requires XML tags around each object
Why wrong: That would describe XML, not JSON.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
JSON stores data as key-value pairs and arrays
JSON is a lightweight data-interchange format that represents data as key-value pairs and arrays. Option A is incorrect because JSON is not a transport protocol; it is a data format exchanged over HTTPS. Option C is incorrect because JSON is platform-agnostic and used by many APIs, not limited to Cisco DNA Center. Option D is incorrect because JSON uses a flexible syntax with colons and brackets, not XML tags.
Key principle: JSON represents data using key-value pairs and arrays, enabling structured and hierarchical data storage.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
JSON is a transport protocol that replaces HTTPS
Why it's wrong here
JSON is a data format, not a transport protocol.
When this WOULD be correct
If the exam question stated that JSON is a protocol designed to facilitate data transfer over the internet, and it was framed in a context where JSON was being compared to other transport protocols, then option A could be considered correct.
JSON stores data as key-value pairs and arrays
JSON can be used only with Cisco DNA Center
Why it's wrong here
It is widely used across many platforms and APIs.
When this WOULD be correct
If the question were framed to ask about a proprietary API that only supports JSON for data interchange within Cisco DNA Center, then this option could be considered correct in that specific context.
JSON requires XML tags around each object
Why it's wrong here
That would describe XML, not JSON.
When this WOULD be correct
If the question were to ask about a data format that requires XML tags for structuring data, such as in a comparison between XML and JSON, then this option would be correct. For example, a question could ask, 'Which format requires tags to define objects?'
Option-by-option analysis
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.
Why this is correct
That is the core structure used in JSON.
Why this is wrong here
JSON is a lightweight data-interchange format, not a transport protocol. HTTPS is a secure version of HTTP used for communication, and JSON does not replace it; instead, JSON data is often transmitted over HTTPS.
★ When this WOULD be the correct answer
If the exam question stated that JSON is a protocol designed to facilitate data transfer over the internet, and it was framed in a context where JSON was being compared to other transport protocols, then option A could be considered correct.
Why candidates choose this
Students might confuse JSON with a protocol because it is commonly used in API communications, leading them to think it is a transport protocol rather than a data format.
Why this is wrong here
JSON is a platform-independent data format used by many APIs and services, not just Cisco DNA Center. It is supported by virtually all programming languages and is a standard for web APIs across different vendors.
★ When this WOULD be the correct answer
If the question were framed to ask about a proprietary API that only supports JSON for data interchange within Cisco DNA Center, then this option could be considered correct in that specific context.
Why candidates choose this
A student might associate JSON with Cisco DNA Center because it is commonly used in Cisco's REST APIs, but this does not mean it is exclusive to that platform.
Why this is wrong here
JSON does not use XML tags; it uses a syntax of curly braces, colons, and commas to define objects and arrays. XML uses angle brackets for tags, which is a different markup language.
★ When this WOULD be the correct answer
If the question were to ask about a data format that requires XML tags for structuring data, such as in a comparison between XML and JSON, then this option would be correct. For example, a question could ask, 'Which format requires tags to define objects?'
Why candidates choose this
Students might confuse JSON with XML because both are used for data interchange, but they have distinct syntaxes. The mention of 'tags' is a clear indicator of XML, not JSON.
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
Avoid confusing JSON with binary formats or assuming it requires a schema like XML.
Detailed technical explanation
JSON, or JavaScript Object Notation, is a lightweight data-interchange format widely used in network automation and programmability, including Cisco's REST APIs. It represents data as human-readable text using key-value pairs and arrays, making it easy for both humans and machines to parse and generate. JSON's structure supports nested objects and arrays, allowing complex data to be represented efficiently without verbose syntax. In the context of Cisco networking and the CCNA exam, JSON is the preferred data format for RESTful APIs because it simplifies data exchange between network devices and management platforms like Cisco DNA Center or third-party tools. Unlike transport protocols such as HTTPS, JSON is purely a data format and does not handle data transmission. Understanding that JSON stores data as key-value pairs and arrays helps network engineers correctly interpret API responses and automate network tasks effectively. A common exam trap is confusing JSON with transport protocols or XML. JSON does not require XML tags and is not limited to Cisco DNA Center; it is a universal format used across many platforms. Practically, network engineers must recognize JSON's role as a data representation format to avoid misconfiguring automation scripts or misinterpreting API responses, which could lead to automation failures or incorrect network state assessments.
Key takeaway
JSON represents data using key-value pairs and arrays, enabling structured and hierarchical data storage.
Real-world example
A practitioner preparing for the 200-301 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. JSON represents data using key-value pairs and arrays, enabling structured and hierarchical data storage. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Review jSON represents data using key-value pairs and arrays, enabling structured and hierarchical data storage., then practise related 200-301 questions on the same topic to reinforce the concept.
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FAQ
AI and Network Operations — This question tests AI and Network Operations — JSON represents data using key-value pairs and arrays, enabling structured and hierarchical data storage..
The correct answer is: JSON stores data as key-value pairs and arrays — JSON is a lightweight data-interchange format that represents data as key-value pairs and arrays. Option A is incorrect because JSON is not a transport protocol; it is a data format exchanged over HTTPS. Option C is incorrect because JSON is platform-agnostic and used by many APIs, not limited to Cisco DNA Center. Option D is incorrect because JSON uses a flexible syntax with colons and brackets, not XML tags.
Review jSON represents data using key-value pairs and arrays, enabling structured and hierarchical data storage., then practise related 200-301 questions on the same topic to reinforce the concept.
JSON represents data using key-value pairs and arrays, enabling structured and hierarchical data storage.
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Last reviewed: May 17, 2026
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