Question 1mediummatching
Full question →Match each automation-related data term to the most accurate description.
Answer choices are not available in this preview. Open the full question page for the complete review.
mediummatchingObjective-mapped
Match each automation-related data term to the most accurate description.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is confusing the data format JSON with the data modeling language YANG. JSON is a lightweight, text-based data format used to represent structured data, while YANG is a modeling language that defines the structure and semantics of configuration and state data for network devices. Candidates might also mistake an array for a key or vice versa, leading to incorrect matching. Understanding that a key is a field name within a JSON object, and an array is an ordered list of values, is crucial to avoid misinterpretation of API outputs and automation data structures in Cisco environments.
Technical deep dive
How to think about this question
Automation in Cisco networking relies heavily on structured data representation and modeling to enable programmability and integration with network devices. JSON (JavaScript Object Notation) is a lightweight, human-readable data format widely used to encode data exchanged between network controllers and devices. It organizes data into key-value pairs and arrays, making it easy to parse and manipulate. A key in JSON is the name of a field that identifies a specific piece of data, while an array is an ordered list that can hold multiple values or objects, facilitating complex data structures. YANG, on the other hand, is a data modeling language used to define the structure, constraints, and semantics of configuration and state data for network devices. It provides a standardized way to describe how data is organized and related, enabling consistent automation across different vendors and platforms. Understanding the distinction between YANG as a model and JSON as a format is critical because YANG models are often serialized into JSON for transmission and processing by network management systems. A common confusion arises when candidates mistake JSON arrays for keys or confuse YANG models with data formats. In practical Cisco automation scenarios, YANG models define what data can be configured or monitored, while JSON represents the actual data exchanged. Recognizing these roles helps network engineers interpret API outputs correctly, troubleshoot automation scripts, and design effective network programmability solutions aligned with Cisco's automation frameworks.
KKey Concepts to Remember
- JSON is a lightweight data format that represents structured data using key-value pairs and arrays, enabling easy data exchange in network automation.
- A key in JSON names a specific field within an object, allowing precise identification and access to individual data elements in automation outputs.
- An array in JSON is an ordered list of values or objects, supporting the representation of multiple related data items in network configurations or states.
- YANG is a data modeling language that defines the schema and structure of network configuration and state data, ensuring consistent automation across devices.
- YANG models are often serialized into JSON format for transmission between network controllers and devices in Cisco automation environments.
- Understanding the difference between data formats like JSON and data models like YANG is essential for interpreting API responses accurately.
- Confusing JSON arrays with keys or mistaking YANG for a data format can lead to misinterpretation of automation data and incorrect network configurations.
- Cisco network automation relies on correctly matching data terms to their roles to enable effective programmability and integration with network devices.
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 is a lightweight data format that represents structured data using key-value pairs and arrays, enabling easy data exchange in network automation.
What exam trap should I watch out for?
Common exam trap: answer the scenario, not the keyword: A common exam trap is confusing the data format JSON with the data modeling language YANG. JSON is a lightweight, text-based data format used to represent structured data, while YANG is a modeling language that defines the structure and semantics of configuration and state data for network devices. Candidates might also mistake an array for a key or vice versa, leading to incorrect matching. Understanding that a key is a field name within a JSON object, and an array is an ordered list of values, is crucial to avoid misinterpretation of API outputs and automation data structures in Cisco environments.
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.