Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
Why would an orchestration platform prefer a northbound API over screen-scraping CLI output?
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
Because the northbound API provides a defined and structured interface intended for software interaction.
This is correct because APIs are built for reliable programmatic use.
B
Distractor review
Because screen-scraping automatically encrypts data more strongly than APIs.
This is wrong because parsing method and transport security are different issues.
C
Distractor review
Because northbound APIs remove the need for authentication.
This is wrong because secure APIs still require authentication and authorization.
D
Distractor review
Because CLI output cannot be read by humans.
This is wrong because CLI output is specifically designed for human readability.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is to assume that CLI output is suitable for automation because it is the traditional method for network management. Candidates may incorrectly believe that screen-scraping CLI output is secure or easier to implement. However, CLI output is designed for human readability, not for consistent machine parsing, and can vary with device software versions or configurations. This fragility makes screen-scraping unreliable for orchestration platforms, which require stable, structured data interfaces like northbound APIs to ensure dependable automation.
Technical deep dive
How to think about this question
Northbound APIs in network orchestration platforms provide a standardized, structured interface that allows software tools to interact programmatically with network devices and services. These APIs expose network functions and data in a predictable format, enabling automation and integration with higher-level management systems. Unlike CLI interfaces, which are designed primarily for human operators, northbound APIs facilitate reliable, repeatable, and scalable automation workflows essential for modern network programmability. The decision to prefer northbound APIs over screen-scraping CLI output is based on reliability and maintainability. Screen-scraping involves parsing human-readable CLI text output, which can vary with device models, OS versions, or command syntax changes, making automation fragile and error-prone. Northbound APIs, by contrast, provide consistent data models and error handling, reducing the risk of parsing failures and simplifying authentication and authorization processes within Cisco network environments. A common exam trap is assuming that CLI output is equally valid for automation because it is the traditional method for network management. However, CLI output is inherently unstable for programmatic use and lacks the structured data format APIs provide. In practical Cisco network operations, relying on northbound APIs ensures better integration with automation tools like Cisco DNA Center or third-party orchestration platforms, avoiding the pitfalls of brittle screen-scraping scripts that can break with minor CLI changes.
KKey Concepts to Remember
- Northbound APIs provide a defined and structured interface designed specifically for software interaction with network devices and services.
- Screen-scraping CLI output is fragile because CLI commands are intended for human readability and can change across device models or software versions.
- Automation platforms prefer northbound APIs because they offer consistent data formats and predictable responses, improving reliability in network programmability.
- Northbound APIs support secure authentication and authorization mechanisms, which are essential for safe automated network management.
- Screen-scraping requires complex parsing logic that increases maintenance overhead and the risk of errors in automation workflows.
- Cisco network automation tools like Cisco DNA Center leverage northbound APIs to integrate with network devices efficiently and reliably.
- Using northbound APIs aligns with modern network programmability principles, enabling scalable and maintainable orchestration solutions.
- Relying on CLI output for automation can lead to failures when command output formats change, making APIs the preferred interface for orchestration.
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?
Northbound APIs provide a defined and structured interface designed specifically for software interaction with network devices and services.
What is the correct answer to this question?
The correct answer is: Because the northbound API provides a defined and structured interface intended for software interaction. — A northbound API is preferred because it is designed for software consumption. In practical terms, it provides a defined, structured, predictable interface that tools can interact with directly. Screen-scraping CLI output is much more fragile because CLI displays are primarily intended for human reading, not consistent machine parsing. This is a practical architecture question. The API is the clean software interface. The CLI is useful for humans, but not usually the best primary interface for orchestration.
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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