Question 1easymulti select
Full question →easymulti selectObjective-mapped
Which two statements correctly describe JSON?
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
Best answer
It commonly represents data as key-value pairs
That is a core JSON pattern.
B
Best answer
It is often used in REST API payloads
Very common in network automation tools and controllers.
C
Distractor review
It requires angle-bracket tags around every field
That describes XML, not JSON.
D
Distractor review
It is a routing protocol used by controllers
JSON is only a data format.
E
Distractor review
It can only carry integer values
JSON can represent strings, booleans, arrays, numbers, objects, and null.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is mistaking JSON for XML or a routing protocol. Some candidates incorrectly believe JSON requires angle-bracket tags around fields, which is actually an XML characteristic. Others confuse JSON with routing protocols used by controllers, which it is not. JSON is solely a data format for representing structured data, primarily using key-value pairs and arrays. Misunderstanding this can lead to selecting incorrect answers that describe XML or routing protocols instead of JSON’s actual function in network automation and programmability.
Technical deep dive
How to think about this question
JSON (JavaScript Object Notation) is a lightweight, text-based data interchange format that represents data as key-value pairs and ordered lists (arrays). It is designed to be easy for humans to read and write, and easy for machines to parse and generate. JSON syntax uses curly braces {} to define objects and square brackets [] for arrays, with keys as strings and values that can be strings, numbers, booleans, arrays, objects, or null. This structure makes JSON highly flexible for representing complex data hierarchies in a simple, standardized way. In the context of Cisco networking and the CCNA exam, JSON is commonly used in automation and programmability tasks, especially with REST APIs. Network devices and controllers often exchange configuration data, telemetry, or operational state information using JSON payloads. Understanding that JSON uses key-value pairs and is widely adopted in RESTful APIs helps candidates correctly identify its role in network automation workflows. Unlike XML, JSON does not use angle-bracket tags, which is a common point of confusion. A frequent exam trap is confusing JSON with XML or routing protocols. JSON is purely a data format, not a protocol or routing technology. Candidates might mistakenly think JSON requires tags like XML or that it is a protocol used by controllers. Recognizing JSON’s role as a data representation format used in REST API payloads prevents this error. Practically, network engineers use JSON to automate device configuration and monitoring, making it essential to understand its syntax and usage in Cisco automation scenarios.
KKey Concepts to Remember
- JSON represents data as key-value pairs and arrays, enabling structured and hierarchical data representation in a simple text format.
- JSON is widely used in REST API payloads to exchange configuration and operational data between network devices and automation tools.
- JSON syntax uses curly braces for objects and square brackets for arrays, without requiring angle-bracket tags like XML.
- JSON supports multiple data types including strings, numbers, booleans, arrays, objects, and null values, providing flexibility in data representation.
- Network automation and programmability workflows in Cisco environments commonly use JSON to facilitate device configuration and telemetry exchange.
- JSON is a data format, not a routing protocol or network control protocol, which distinguishes it from technologies like OSPF or EIGRP.
- Understanding JSON’s role helps avoid confusion with XML and routing protocols, which are common exam pitfalls.
- JSON’s lightweight and human-readable structure makes it ideal for modern network automation and programmability tasks tested in the CCNA exam.
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.
Related practice questions
Related 200-301 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
CCNA subnetting practice questions
Practise IPv4 subnetting, CIDR, masks, host ranges and subnet selection.
CCNA OSPF practice questions
Practise OSPF neighbours, router IDs, metrics, areas and routing-table interpretation.
CCNA VLAN practice questions
Practise VLANs, access ports, trunks, allowed VLANs and switching scenarios.
CCNA STP practice questions
Practise spanning tree, root bridge election, port roles and STP troubleshooting.
CCNA EtherChannel practice questions
Practise LACP, PAgP, port-channel behaviour and bundle requirements.
CCNA ACL practice questions
Practise standard and extended ACLs, permit/deny logic and traffic filtering.
CCNA NAT practice questions
Practise static NAT, dynamic NAT, PAT and inside/outside address translation.
CCNA DHCP practice questions
Practise DHCP scopes, relay, leases and troubleshooting.
CCNA show ip route practice questions
Practise routing-table output, longest-prefix match, AD and route selection.
CCNA show interfaces trunk practice questions
Practise trunk verification and VLAN forwarding across switches.
CCNA wireless security practice questions
Practise WLAN security, authentication and wireless architecture concepts.
CCNA IPv6 practice questions
Practise IPv6 addressing, routes, neighbour discovery and common IPv6 exam traps.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A router learns the same prefix from both OSPF and EIGRP. Which route is installed by default?
Question 2
A router shows this output: R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.1.1.2 1 FULL/DR 00:00:34 192.168.12.2 GigabitEthernet0/0 10.1.1.3 1 2WAY/DROTHER 00:00:39 192.168.12.3 GigabitEthernet0/0 Which statement is correct?
Question 3
What is the OSPF metric called?
Question 4
A non-root switch has two uplinks toward the root bridge. One path has a lower total STP cost than the other. What role will the lower-cost uplink have?
Question 5
A router interface applies this ACL inbound: 10 deny tcp any any eq 80 20 permit ip any any A user reports that web browsing to a server by IP address fails, but ping works. Which statement best explains the behavior?
Question 6
A router learns route 198.51.100.0/24 from OSPF with AD 110 and also has a static route to the same prefix configured with AD 150. Which route is installed?
FAQ
Questions learners often ask
What does this 200-301 question test?
JSON represents data as key-value pairs and arrays, enabling structured and hierarchical data representation in a simple text format.
What is the correct answer to this question?
The correct answer is: It commonly represents data as key-value pairs — JSON is a lightweight data-interchange format commonly used in APIs. It represents data using key-value pairs and arrays. It is not the same thing as XML, although both can represent structured data.
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.
Discussion
Loading comments…
Sign in to join the discussion.