Cisco 200-901 Online Practice Questions and Exam Preparation

Cisco 200-901 Online Questions & Answers

• Question 401:

  What is a benefit of organizing code into modules?

  A. improves overall performance
  B. reduces the length of code
  C. enables code to be multifunctional
  D. enables the reuse of code
  D. enables the reuse of code

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  Modules are a way to build independent and self-contained chunks of code that can be reused. Developers typically use modules to divide a large project into smaller parts. This way the code is easier to read and understand, and each module can be developed in parallel without conflicts. A Module is packaged as a single file and in addition to being available for integration with other modules, it should work independently. A module consists of a set of functions and typically contains an interface for other modules to integrate with. It is essentially a library and cannot be instantiated. Note: A module is just a set of functions in a file.

• Question 402:

  Which Cisco compute management platform enables the management of Cisco UCS, Cisco HyperFlex, Pure Storage, and Cisco Network Insights from a single platform?

  A. Cisco UCS Manager
  B. Cisco Intersight
  C. Cisco HyperFlex
  D. Cisco UCS Director
  B. Cisco Intersight

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  Explanation Explanation/Reference:

• Question 403:

  A retail store is launching an online presence through their new application. The amount of end-user traffic on the application is expected to fluctuate depending on whether there are sales on or not. The application developer has decided to adopt an application-deployment model that allows them to leverage cloud bursting. Which deployment approach would allow cloud bursting?

  A. local infrastructure
  B. edge computing
  C. on-premises
  D. hybrid
  D. hybrid

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  Explanation Explanation/Reference:

• Question 404:

  Which TCP port is used by default for HTTPS?

  A. 53
  B. 80
  C. 143
  D. 443
  D. 443

• Question 405:

  A developer checks the performance of a web application. The application is in the local data center and used a REST-based API. Based on the API logs, it is discovered that many users abandon API requests. Also, the response is taking too long to get back. What is the reason for this issue?

  A. Token-based authentication is disabled.
  B. Pagination is not implemented.
  C. Rate limiting is not implemented.
  D. Token-based authentication is enabled.
  C. Rate limiting is not implemented.

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  Explanation Explanation/Reference:Rate limiting is a technique to control the rate of incoming and outgoing traffic to or from a network. If rate limiting is not implemented, excessive API requests can overwhelm the server, causing long response times and abandoned requests. Abandoned Requests: When a server is overwhelmed with too many requests, it may not process them all, leading to abandoned requests. Long Response Times: Without rate limiting, the server might be handling more requests than it can efficiently process, resulting in delayed responses. Solution: Implementing rate limiting ensures that the server processes requests at a manageable rate, improving performance and reliability. References: Rate Limiting and API Performance: Understanding Rate Limiting

• Question 406:

  A business needs to create a simulated environment that mimics a production infrastructure to make changes to the OSPF process and analyze the impact. What should be used?

  A. Cisco VIRL / Cisco CML
  B. Cisco DevNet Sandbox labs
  C. pyATS
  D. Puppet
  A. Cisco VIRL / Cisco CML

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  https://www.cisco.com/c/en/us/products/cloud-systems-management/modeling-labs/index.html

• Question 407:

  What are two advantages of version control software? (Choose two.)

  A. It supports tracking and comparison of changes in binary format files.
  B. It allows new team members to access the current code and history.
  C. It supports comparisons between revisions of source code files.
  D. It provides wiki collaboration software for documentation.
  E. It allows old versions of packaged applications to be hosted on the Internet.
  B. It allows new team members to access the current code and history.
  C. It supports comparisons between revisions of source code files.

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  Version control is a way to keep a track of the changes in the code so that if something goes wrong, we can make comparisons in different code versions and revert to any previous version that we want. It is very much required where multiple developers are continuously working on /changing the source code.

• Question 408:

  How is a branch called "my-bug-fix" started to develop a fix needed in a product?

  A. git branch -b my-bug-fix
  B. git checkout -b my-bug-fix
  C. git checkout my-bug-fix
  D. git branch my-bug-fix
  B. git checkout -b my-bug-fix

• Question 409:

  What is the purpose of the Cisco VIRL software tool?

  A. to verify configurations against compliance standards
  B. to automate API workflows
  C. to simulate and model networks
  D. to test performance of an application
  C. to simulate and model networks

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  Explanation Explanation/Reference:https://www.speaknetworks.com/cisco-virl-better-gns3/

• Question 410:

  What is a benefit of test-driven development?

  A. early customer involvement
  B. increased code quality
  C. faster releases that have minimal features
  D. strict adherence to product requirements
  B. increased code quality