Cisco 200-901 Online Practice Questions and Exam Preparation

Cisco 200-901 Online Questions & Answers

• Question 71:

  A REST API service requires basic authentication. A user's credentials are "ned/33662255" and the Base64 encoding of the credentials is "a2lsbGE6NDU4ODI5". Which requirement must be met for a request to be authenticated?

  A. The header must include: Authorization: Basic a2lsbGE6NDU4ODI5
  B. The payload must include: Authorization: Basic a2lsbGE6NDU4ODI5
  C. The header must include: username: ned, password: 33662255
  D. The payload must include: username: ned, password: 33662255
  A. The header must include: Authorization: Basic a2lsbGE6NDU4ODI5

• Question 72:

  Which two types of NAT are used in a network? (Choose two.)

  A. routed NAT
  B. static NAT
  C. multicast NAT
  D. normal NAT
  E. dynamic NAT
  B. static NAT
  E. dynamic NAT

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  Explanation Explanation/Reference:https://www.dummies.com/programming/networking/cisco/types-of-network-address-translation/

• Question 73:

  Refer to the exhibit.

  

  Which type of YANG object is "interfaces"?

  A. subitem
  B. container
  C. item
  D. node
  B. container

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  In YANG, a "container" is a grouping of related nodes and sub-nodes. The "interfaces" object in the YANG model is a container for interface-related data. Container: The container statement is used to define an interior data node in the YANG data tree. Structure: The exhibit shows that "interfaces" encapsulates other nodes such as interface, name, description, etc., indicating that it is a container. References: YANG Data Modeling Language: YANG RFC

• Question 74:

  Refer to the exhibit.

  

  Which two statements about the network diagram are true? (Choose two.)

  A. The subnet address of PC-B has 18 bits dedicated to the network portion.
  B. One of the routers has two connected serial interfaces.
  C. R1 and R3 are in the same subnet.
  D. PC-A and PC-B are in the same subnet.
  E. The subnet of PC-C can contain 256 hosts.
  B. One of the routers has two connected serial interfaces.
  D. PC-A and PC-B are in the same subnet.

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  Explanation Explanation/Reference:D is the closest answer than others. hosts connected to the same switch DOES NOT mean that they are on the same subnet. Different switch ports can be on different subnets (This is what VLANs are for, breaking down broadcast domains in a switch) as others already mentioned, a /24 network can only have 254 host addresses

• Question 75:

  Refer to the exhibit.

  

  An astronomer creates a Python script named makeexoplanetapi.py to import external data for comparison with the department data. The astronomer changes the script after a discussion with another astronomer. Which code snippet shows a unified diff of the script?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  B. Option B

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  Explanation Explanation/Reference:

• Question 76:

  Refer to the exhibit.

  

  A developer is using cURL to test connectivity to a webpage. The request times out after 10 seconds. The developer tested connectivity by using Ping and can open a TCP socket to the remote server by using Telnet. Other users confirm that they can access the webpage from their device. The developer has SSH access to the remote server and runs commands to troubleshoot. What causes the issue?

  A. Connectivity from the remote server back to the client is down.
  B. Firewall rules on the remote server block the client on port 443.
  C. Application-layer security features on the remote server block the connection.
  D. HTTPS proxy configured on the remote server blocks the connection.
  D. HTTPS proxy configured on the remote server blocks the connection.

• Question 77:

  What are two benefits of managing network configuration via APIs? (Choose two.)

  A. more security due to locking out manual device configuration
  B. configuration on devices becomes less complex
  C. eliminates the need of legacy management protocols like SNMP
  D. reduction in network changes performed manually
  E. increased scalability and consistency of network changes
  D. reduction in network changes performed manually
  E. increased scalability and consistency of network changes

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  API is all about automation and escalability

• Question 78:

  An existing application is accessible from an external IP address. Which device or service must be configured to make the application accessible through a URL by using a domain name?

  A. reverse proxy
  B. DNS
  C. firewall
  D. load balancer
  B. DNS

• Question 79:

  Which plane is used to enable routing on a network-connected device?

  A. management
  B. data
  C. control
  D. forwarding
  C. control

• Question 80:

  A team of developers is responsible for a network orchestration application in the company. The responsibilities also include:

  1.

  developing and improving the application in a continuous manner

  2.

  deployment of the application and management of CI/CD frameworks

  3.

  monitoring the usage and problems and managing the performance improvements

  Which principle best describes this DevOps practice?

  A. responsible for IT operations
  B. automation of processes
  C. end-to-end responsibility
  D. quality assurance checks
  C. end-to-end responsibility

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  The key words "developing," "deployment," "monitoring," and "managing" show end-to-end responsibility. The principle that best describes the DevOps practice outlined in the question is "end-to-end responsibility". In DevOps, teams are responsible for the entire lifecycle of the application, including development, deployment, continuous integration/continuous delivery (CI/CD), monitoring, and performance improvements. This holistic approach ensures that the same team manages all aspects of the application's lifecycle, leading to better collaboration, faster deployment cycles, and improved overall quality and reliability of the software. References: Cisco DevNet Associate Certification Guide DevOps Handbook: How to Create World-Class Agility, Reliability, and Security in Technology Organizations