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200-901 · topic practice

Cisco Platforms and Development practice questions

Practise Cisco DevNet Associate 200-901 Cisco Platforms and Development practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

Courseiva uses original exam-style practice questions designed for learning and revision. The goal is to understand the concepts, recognise exam patterns, and improve through explanations — not memorise copied exam dumps.

Reviewed byJohnson Ajibi· MSc IT Security
20 questionsDomain: Cisco Platforms and Development
Practice 10 questionsBrowse domain →

What the exam tests

What to know about Cisco Platforms and Development

Cisco Platforms and Development questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Watch out for

Common Cisco Platforms and Development exam traps

  • ▸Answering from memory before reading the full scenario.
  • ▸Missing a constraint such as cost, availability, security, scope or command context.
  • ▸Choosing a broad answer when the question asks for the most specific fix.
  • ▸Ignoring why the wrong options are tempting.

Practice set

Cisco Platforms and Development questions

20 questions · select your answer, then reveal the explanation

Question 1easymultiple choice
Open the full VLAN trunking answer →

A network engineer needs to automate the configuration of VLANs across 50 switches. Which approach best follows Cisco’s recommended practices for programmability?

Question 2mediummultiple choice
Read the full REST/YANG explanation →

A developer is building a chatbot that retrieves interface status from a Cisco Catalyst 9000 switch using RESTCONF. Which authentication method is most appropriate for programmatic access?

Question 3hardmultiple choice
Study the full SD-Access breakdown →

During a migration from legacy to SD-Access, a network team wants to use Cisco DNA Center to automate policy deployment. They have defined a macro-level intent but need to ensure that the fabric devices are correctly configured. Which API call should they use to validate the fabric configuration?

Question 4easymultiple choice
Study the full Python automation breakdown →

A Python script uses the Cisco Meraki API to fetch the list of organizations. The script fails with a 401 HTTP status. What is the most likely cause?

Question 5mediummultiple choice
Read the full Platforms and Development explanation →

A DevOps team is using Cisco NSO to manage network devices. They want to ensure that the configuration is compliant with corporate standards. Which NSO feature should they use?

Question 6hardmultiple choice
Study the full Python automation breakdown →

A developer is writing a Python script using the Cisco Webex Teams API to send a message to a specific room. The script works for some rooms but fails for others with a 404 error. What is the most likely reason?

Question 7easymultiple choice
Read the full Platforms and Development explanation →

An organization uses Cisco Intersight to manage UCS servers. They want to automate the firmware upgrade process. Which Intersight API should be used to trigger a firmware upgrade on a server?

Question 8mediummultiple choice
Study the full Python automation breakdown →

A network administrator uses the Cisco IOS XE CLI to configure a router. They want to use a Python script to automate this configuration via the guest shell. Which library should they use to interact with the CLI from within the guest shell?

Question 9mediummulti select
Read the full REST/YANG explanation →

Which TWO are benefits of using model-driven programmability (e.g., NETCONF/RESTCONF) over traditional CLI scripting for network automation?

Question 10hardmulti select
Read the full Platforms and Development explanation →

Which THREE are valid reasons to use Cisco DNA Center's Assurance APIs in an enterprise network?

Question 11easymulti select
Read the full Platforms and Development explanation →

Which TWO are common authentication methods used when interacting with Cisco APIs?

Question 12mediummultiple choice
Open the full VLAN trunking answer →

Refer to the exhibit. A Python script using RESTCONF sends a GET request to retrieve the interface configuration. The response is shown. What is the VLAN assigned to GigabitEthernet1/0/1?

Exhibit

Refer to the exhibit.

{
  "Cisco-IOS-XE-native:interface": {
    "GigabitEthernet": [
      {
        "name": "1/0/1",
        "description": "Server port",
        "ip": {
          "address": {
            "primary": {
              "address": "192.168.1.1",
              "mask": "255.255.255.0"
            }
          }
        },
        "switchport": {
          "access": {
            "vlan": 10
          },
          "mode": "access"
        }
      }
    ]
  }
}
Question 13hardmultiple choice
Read the full VPN explanation →

Refer to the exhibit. A service engineer runs a 'check-sync' action on the NSO service 'vpn1'. The result shows 'out-of-sync' for device 'pe1'. What does this indicate?

Exhibit

Refer to the exhibit.

! NSO configuration snippet
services {
  l3vpn vpn1 {
    endpoint ce1 {
      device [pe1 pe2]
      interface GigabitEthernet0/0/1
      ip-address 10.0.0.1/30
    }
    endpoint ce2 {
      device pe3
      interface GigabitEthernet0/0/2
      ip-address 10.0.0.5/30
    }
  }
}
Question 14hardmultiple choice
Open the full VLAN trunking answer →

A large enterprise operates a multi-vendor network with Cisco routers and switches, as well as Juniper devices. The network team uses Ansible for automation, with a centralized control node running RHEL. They have been using the 'ios_config' module for Cisco devices and 'junos_config' for Juniper devices. Recently, they added a new Cisco Catalyst 9300 switch to the network. They wrote a playbook to configure VLAN 100 on the switch, but the task fails with the error: 'module_stderr: Could not find platform module for Cisco IOS XE'. The playbook uses the 'cisco.ios.ios_config' module. The control node has the 'cisco.ios' collection installed (version 2.0.0). The target switch runs IOS XE 16.12.3. The control node can SSH to the switch successfully. Which action will most likely resolve the issue?

Question 15mediummultiple choice
Study the full Python automation breakdown →

A university IT department manages a Cisco Meraki network with 200 MR access points and 50 MS switches. They use the Meraki dashboard API to automate network provisioning. A new student dormitory was added, and the team needs to create a new network and claim devices. They have a Python script that uses the Meraki API to create the network and then claim devices by serial numbers. The script successfully creates the network but fails when claiming devices with a 400 error: 'Device serial number is not valid or already claimed'. The serial numbers are correct and unused. The API key has full organization access. The script uses the endpoint 'POST /networks/{networkId}/devices/claim' with the correct body. What is the most likely cause of the failure?

Question 16easymultiple choice
Open the full VLAN trunking answer →

A developer is automating VLAN configuration on a Cisco switch using REST API. Which HTTP method should be used to create a new VLAN?

Question 17mediummulti select
Read the full REST/YANG explanation →

Which TWO of the following are characteristics of Model-Driven Programmability with YANG models?

Question 18hardmultiple choice
Read the full REST/YANG explanation →

Refer to the exhibit. A developer sends a PUT request to the RESTCONF endpoint with the above JSON payload. The device already has interface GigabitEthernet1/0/1 configured with IP address 10.10.10.1/24. What is the expected outcome?

Exhibit

Refer to the exhibit.

{
  "Cisco-IOS-XE-native:interface": {
    "GigabitEthernet": [
      {
        "name": "1/0/1",
        "description": "Link to Core",
        "ip": {
          "address": {
            "primary": {
              "address": "10.10.10.1",
              "mask": "255.255.255.0"
            }
          }
        }
      }
    ]
  }
}
Question 19mediumdrag order
Open the full VLAN trunking answer →

Drag and drop the steps to configure a new VLAN on a Cisco switch into the correct order.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5
Question 20mediumdrag order
Read the full Platforms and Development explanation →

Drag and drop the steps to use Git to commit and push code changes to a remote repository into the correct order.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5
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Frequently asked questions

What does the 200-901 exam test about Cisco Platforms and Development?
Cisco Platforms and Development questions test whether you can apply the concept in context, not just recognise a definition.
How should I use these practice questions?
Select your answer before revealing the explanation. Then read why each option is right or wrong — this active recall approach builds retention far faster than re-reading notes.
Can I practise just Cisco Platforms and Development questions in a focused session?
Yes — the session launcher on this page draws every question from the Cisco Platforms and Development domain. Use a 10-question session first to gauge your baseline, then move to 20 or 30 once the weak spots are clear.
Where can I practise other 200-901 topics?
Use the topic links above to move to related areas, or go back to the 200-901 question bank to see all topics.
Are these real exam questions or dumps?
These are original practice questions written to test the same concepts the 200-901 exam covers. They are not copied from any real exam or dump site.