Question 1easymatching
Full question →Match each automation-related term to its most accurate description.
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easymatchingObjective-mapped
Match each automation-related term to its most accurate description.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is confusing the roles of JSON and YANG in network automation. JSON is often mistaken as a data modeling language, but it is actually a lightweight data format. Similarly, REST is sometimes incorrectly identified as an API rather than an architectural style. This confusion leads to mixing transport styles, data formats, and interface concepts, which causes incorrect matching. Recognizing that each term belongs to a distinct category—data format, transport style, interface, or data model—is crucial to avoid this trap.
Technical deep dive
How to think about this question
Automation in Cisco networking relies on clear distinctions between data formats, transport methods, interfaces, and data models. JSON (JavaScript Object Notation) is a lightweight, human-readable data format used to represent structured data. It is widely used in network automation for exchanging configuration and state information because it is easy to parse and generate. REST (Representational State Transfer) is an architectural style that uses standard HTTP methods like GET, POST, PUT, and DELETE to interact with resources, making it a popular choice for network device communication. An API (Application Programming Interface) defines the set of rules and protocols that allow different software applications to communicate. In network automation, APIs expose device capabilities and data to automation tools. YANG is a specialized data modeling language designed to describe the structure and semantics of network configuration and state data. It provides a standardized way to model network elements, enabling consistent automation across diverse devices. Understanding these distinctions is critical in the CCNA context because automation questions test your ability to recognize each term’s role rather than deep programming knowledge. Confusing JSON with YANG or REST with API leads to incorrect answers. Practically, network engineers use YANG models to define device data, JSON to encode that data, REST APIs to transport it, and APIs as the interface to access device functions. This layered approach is foundational for modern Cisco network automation.
KKey Concepts to Remember
- JSON is a lightweight, structured data format used to represent network information in a human-readable and machine-parsable way.
- REST is an architectural style that uses HTTP methods to enable stateless communication between clients and network devices.
- An API defines the interface and protocols that allow software systems to interact and exchange data in network automation.
- YANG is a data modeling language that describes the structure and semantics of network configuration and operational data.
- Network automation relies on JSON for data encoding, REST for transport, APIs for interaction, and YANG for data modeling.
- Confusing data formats like JSON with data models like YANG is a common mistake in CCNA automation questions.
- REST APIs use HTTP methods such as GET, POST, PUT, and DELETE to perform operations on network device resources.
- YANG models enable consistent and vendor-neutral descriptions of network device configurations for automation tools.
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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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 is a lightweight, structured data format used to represent network information in a human-readable and machine-parsable way.
What exam trap should I watch out for?
Common exam trap: answer the scenario, not the keyword: A common exam trap is confusing the roles of JSON and YANG in network automation. JSON is often mistaken as a data modeling language, but it is actually a lightweight data format. Similarly, REST is sometimes incorrectly identified as an API rather than an architectural style. This confusion leads to mixing transport styles, data formats, and interface concepts, which causes incorrect matching. Recognizing that each term belongs to a distinct category—data format, transport style, interface, or data model—is crucial to avoid this trap.
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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