Question 1easymatching
Full question →Match each automation or programmability term to its most accurate description.
Answer choices are not available in this preview. Open the full question page for the complete review.
easymatchingObjective-mapped
Match each automation or programmability 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 the controller, API, JSON, and YANG in network automation. Candidates might mistake JSON as the central management platform or think YANG is a data format rather than a data modeling language. This confusion leads to incorrect matching because each term serves a distinct purpose: the controller manages policies, the API enables communication, JSON structures data, and YANG defines data models. Misunderstanding these roles can cause errors in questions testing automation and programmability concepts in the CCNA exam.
Technical deep dive
How to think about this question
In network automation and programmability, understanding the distinct roles of key components is essential. A controller is a centralized platform that manages and enforces network policies and configurations across devices, providing a unified control point. An API (Application Programming Interface) is the software interface that allows different systems or applications to communicate and exchange data programmatically. JSON (JavaScript Object Notation) is a lightweight, human-readable data format used to structure and transmit data between systems. YANG is a data modeling language that defines the schema and structure of network configuration and state data, enabling consistent interpretation across devices and tools. When matching these terms to their descriptions, the decision process relies on recognizing their unique functions. The controller is the central management entity that orchestrates automation workflows. The API is the communication channel enabling interaction between the controller and network devices or applications. JSON serves as the format for encoding data exchanged via APIs, making it easy to parse and generate. YANG provides the formal data models that describe network elements and their relationships, ensuring interoperability and consistency in automation tasks. A frequent exam trap is mixing up JSON and YANG because both relate to data but serve different purposes. JSON is a data format, while YANG is a modeling language that defines the structure of that data. Another confusion arises between the controller and API, where candidates might think the API is the management platform rather than the interface. In practical Cisco network automation, controllers like Cisco DNA Center use APIs to communicate with devices, exchanging data formatted in JSON and structured according to YANG models, illustrating how these components work together but remain distinct.
KKey Concepts to Remember
- A network controller centralizes policy enforcement and management logic for automated network operations in Cisco environments.
- An API provides the software interface that enables communication and data exchange between network controllers and devices.
- JSON is a lightweight, human-readable data format commonly used to encode and transmit network configuration and state information.
- YANG defines standardized data models that describe network configuration and operational data consistently across devices.
- Controllers use APIs to interact with network devices, exchanging data formatted in JSON and structured according to YANG models.
- Understanding the distinct roles of controller, API, JSON, and YANG prevents confusion in automation and programmability questions on the CCNA exam.
- YANG models ensure interoperability by providing a common language for describing network data used in automation workflows.
- APIs act as the communication bridge, but do not perform policy enforcement or data modeling themselves in network automation.
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?
A network controller centralizes policy enforcement and management logic for automated network operations in Cisco environments.
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 the controller, API, JSON, and YANG in network automation. Candidates might mistake JSON as the central management platform or think YANG is a data format rather than a data modeling language. This confusion leads to incorrect matching because each term serves a distinct purpose: the controller manages policies, the API enables communication, JSON structures data, and YANG defines data models. Misunderstanding these roles can cause errors in questions testing automation and programmability concepts in the CCNA exam.
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.