Cisco 300-550 Exam Questions : Designing and Implementing Cisco Network Programmability

  • Exam Code: 300-550
  • Exam Name: Designing and Implementing Cisco Network Programmability
  • Updated: Jul 22, 2026
  • Q&As: 98 Questions and Answers

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Cisco 300-550 Exam Certification Details:

Duration90 minutes
Sample QuestionsCisco 300-550 Sample Questions
Recommended TrainingDesigning and Implementing Cisco Network Programmability (NPDESI) v1.0 - Self-paced E-Learning
Designing and Implementing Cisco Network Programmability (NPDESI) - Instructor-led Training
Passing ScoreVariable (750-850 / 1000 Approx.)
Exam Price$300 USD
Number of Questions65-75
Exam NameDesigning and Implementing Cisco Network Programmability
Exam Code300-550 NPDESI
Exam RegistrationPEARSON VUE

Reference: http://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/npdesi.html

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Cisco 300-550 Exam Topics:

SectionWeightObjectives
Network Programmability Fundamentals16%1.Analyze and modify Python code to meet specified requirements
2.Describe the use cases for an SDK
3.Choose the appropriate Linux command to complete tasks:
  • Use RESTful APIs
  • Navigate the file system
  • Manage processes
  • Install and manage packages
  • Manage network configurations

4.Describe the importance of securing management plane interfaces
5.Describe the principle of least privilege and how it applies to programmatic interfaces
6.Describe the methods of securing management plane interfaces
7.Compare and contrast white-list vs. black-list security approaches

Controllers21%1.Deploy and configure the following:
  • APIC-EM
  • ACI

2.Troubleshoot the following:

  • APIC-EM
  • APIC

3.Describe the capabilities and architecture of:

  • APIC-EM
  • ACI

4.Construct an API request against:

  • APIC-EM
  • APIC

5.Describe how APIC cluster gets leveraged during an API call
6.Explain the use cases of Digital Networking Architecture in reference to the following technologies:

  • Network Service Orchestration (NSO)
  • Virtual Topology System (VTS)
  • Nexus Data Broker
  • WAN Automation Engine (WAE)
  • UCS Director
  • UCS Manager
Operations16%1.Describe the use cases for orchestration and automation
2.Compare and contrast agent-based with agent-less configuration management Mechanisms
3.Describe the methods for enabling the following configuration management mechanisms:
  • Puppet
  • Chef
  • Ansible

4.Describe how OpenStack Neutron interacts with a physical network infrastructure
5.Compare and contrast the software development methodologies Agile and Waterfall
6.Explain the DevOps concepts of:

  • version control
  • continuous integration
  • configuration management
  • automated validation testing
  • continuous deployment

7.Compare and contrast the benefits of Virtual Network Functions (VNF)/Network Function Virtualization (NFV) with traditional network or service architectures
8.Describe the following platforms used to test network infrastructure automation

  • VIRL
  • APIC Simulator
  • NX-OSv (via VIRL)
  • DevNet Sandboxes
  • ASAv
  • CSR1000v

9.Describe how VIRL can be used as an automated test tool
10.Describe how to setup a test environment using VIRL
11.Evaluate the impact of an automated task on a network

APIs and Automation Protocols24%1.Identify the use cases for north-bound and south-bound APIs
2.Describe the characteristics, benefits, capabilities, and functionalities of the APIs associated with the following operating systems:
  • NX-OS
  • IOS XR
  • IOS XE
  • ASA OS

3.Compare and contrast the RESTful, RESTCONF, and NETCONF APIs
4.Describe the basic characteristics of OpenFlow
5.Describe the characteristics of the following protocols for APIs

  • TLS
  • HTTPS
  • HTTP
  • GRPC
  • SSH
Data models23%1.Validate YANG based models for semantics and syntax
2.Describe the uses of YANG models in NETCONF and RESTCONF
3.Develop YANG models for specific use cases
4.Describe the use cases for platform-specific, vendor-specific, and standardized data models
5.Describe the Management Information Tree (MIT) on Nexus, ACI, and UCS
6.Explain how to use VISORE to navigate the MIT

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Cisco 300-550 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Network Programmability Fundamentals22%- Describe network programmability concepts and architectures
- Compare agent-based vs agentless management models
- Identify transport protocols: HTTP, HTTPS, TLS, SSH, gRPC
- Explain northbound and southbound API roles
Topic 2: Data Models21%- Describe YANG data modeling language
- Navigate Management Information Tree (MIT) on ACI, Nexus, UCS
- Compare standardized vs vendor-specific models
- Validate YANG model syntax and semantics
Topic 3: APIs and Automation Protocols22%- Interpret API request/response structures
- Describe use cases for each protocol
- Compare REST, RESTCONF, NETCONF protocols
- Explain authentication and authorization mechanisms
Topic 4: Automation and Operations18%- Troubleshoot automation and API issues
- Implement configuration management workflows
- Use tools: Python, Ansible, Git, VIRL
- Build test environments with DevNet Sandboxes
Topic 5: Controllers17%- Integrate controllers with external systems
- Use controller APIs for provisioning and monitoring
- Explain controller-based network architectures
- Describe Cisco ACI, DNA Center, Meraki, NSO APIs

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