[Dec 05, 2025] Today Updated 200-901 Exam Dumps Actual Questions
200-901 exam dumps with real Cisco questions and answers
NEW QUESTION # 265
A developer has experienced security issues with a previously developed application. The API offered by that application is open and without any constraints. During a recent attack, the application was overloaded with API requests. To address this issue, an API constraint is implemented to protect the application from future attacks or any sudden throttling. Which API constraint must the application developer implement in this situation?
- A. payload limiting
- B. pagination
- C. filtering
- D. rate limiting
Answer: D
Explanation:
Rate limiting is a technique used to control the amount of incoming and outgoing traffic to or from a network.
It restricts the number of API requests a user can make within a specified time window, protecting the application from being overwhelmed by too many requests at once.
* Definition and Purpose: Rate limiting sets a threshold for the number of requests a user or system can
* make in a given timeframe (e.g., 100 requests per minute).
* Implementation: Developers can implement rate limiting using various strategies such as token buckets or fixed windows.
* Benefits: This constraint helps prevent abuse, reduces server load, and ensures the application remains available and performant even during high traffic periods or attacks.
References:
* Rate Limiting and Throttling in APIs: Rate Limiting
NEW QUESTION # 266
What are two advantages of YANG-based approaches for infrastructure automation? (Choose two.)
- A. command line driven interface
- B. compiles to executables that run on network devices
- C. directly maps to JavaScript
- D. multi-platform vendor abstraction
- E. designed to reflect networking concepts
Answer: D,E
NEW QUESTION # 267
A developer starts to learn about building applications that use Cisco APIs. The developer needs access to Cisco security products in a development lab to test the first new Dlication that has been built. Which DevNet resource must be used?
- A. DevNet Sandbox
- B. DevNet Code Exchange
- C. DevNet Communities
- D. DevNet Automation Exchange
Answer: A
Explanation:
Cisco DevNet Sandbox provides developers with access to a variety of Cisco technologies in a lab environment. It is an essential resource for developers who want to test and build applications using Cisco APIs and products.
DevNet Sandbox: This platform offers pre-configured, ready-to-use environments that allow developers to experiment with Cisco products, including security products, without the need to set up and configure their own infrastructure.
Reference:
Cisco DevNet Sandbox
NEW QUESTION # 268
What is the difference between YAML and JSON data structure?
- A. YAML uses brackets and braces; JSON uses indentation
- B. YAML uses spaces; JSON uses parentheses
- C. YAML uses parentheses; JSON uses spaces
- D. YAML uses indentation; JSON uses brackets and braces
Answer: B
NEW QUESTION # 269
When a site-to-site VPN is used, which protocol is responsible for the transport of user data?
- A. MD5
- B. IKEv2
- C. IKEv1
- D. IPsec
Answer: D
Explanation:
Section: Security Fundamentals
NEW QUESTION # 270
What is a benefit of a model-driven approach for infrastructure automation?
- A. enforces the generation of all automation scripts through the modeling environment
- B. provides a small learning curve and helps system administrators with limited coding experience
- C. enables a user to understand a declarative language to translate the model into an actionable script
- D. ensures that system administrators gain a good understanding of coding and expand their experience and capabilities
Answer: A
NEW QUESTION # 271
What is the purpose of the first three pairs of digits in a MAC address?
- A. indicates vendor of the network card or adapter
- B. defines a routing identifier for the client
- C. indicates the IP address of the client in Hex
- D. defines packet forwarding priority sent or received by the adapter
Answer: A
Explanation:
The first three pairs of digits in a MAC address, also known as the Organizationally Unique Identifier (OUI), identify the vendor or manufacturer of the network card or adapter. This part of the MAC address is assigned by the IEEE to the manufacturers, ensuring that each MAC address is unique.
Reference: Cisco DevNet Associate documentation on networking fundamentals, which explains MAC addresses and their structure.
NEW QUESTION # 272
Refer to the exhibit.
Drag and Drop the code from the bottom onto the box where the code is missing on the Meraki Python script to create a new network
Answer:
Explanation:
Explanation:
NEW QUESTION # 273
Refer to the exhibit.
Fill in the blank to complete the query parameter and value so that the result set is returned in reverse chronological order (most recent first) based on when message were entered.
Answer:
Explanation:
sortBylastactivity
Explanation:
To ensure the result set is returned in reverse chronological order based on when messages were entered, we need to use the sortBy parameter with the value lastactivity. This parameter sorts the rooms by their last activity timestamp, ensuring the most recent rooms are listed first.
Example:
GET /v1/rooms?sortBy=lastactivity
Reference:
Cisco Webex Teams API Documentation (explains query parameters and their usage in API calls) Cisco DevNet Associate Exam Topics: APIs and Automation (understanding how to utilize query parameters to retrieve data)
NEW QUESTION # 274
A developer is attempting to retrieve all the messages from a Cisco Webex space. The server responds by sending the first 1,000 messages. The developer must make additional requests to retrieve the rest of the messages. Which API constraint is described in this scenario?
- A. pagination
- B. rate limiting
- C. payload limiting
- D. throttling
Answer: A
Explanation:
https://developer.atlassian.com/server/confluence/pagination-in-the-rest-api/
NEW QUESTION # 275
A development team is using a version control system that has a centralized workflow. Which feature of the version control system ensures the integrity of the central repository?
- A. central common code versioning backup
- B. tracked code changes of the developers
- C. built-in conflict resolution mechanism
- D. distributed nature of the version control system architecture
Answer: B
NEW QUESTION # 276
What is the main purpose of a code review?
- A. To ensure that all code is checked in simultaneously
- B. To detect logical errors
- C. To provide the technical lead visibility into all code
- D. To identify and review errors with the team
Answer: D
Explanation:
The main purpose of a code review is to identify and review errors, ensuring code quality and adherence to coding standards. It involves evaluating the code for bugs, security vulnerabilities, and performance issues, and discussing potential improvements with the team. This collaborative process helps catch errors early, fosters knowledge sharing, and improves the overall quality of the codebase.
Reference:
Cisco DevNet Associate Study Guide: Code Review Best Practices (Chapter 6, Section: Importance of Code Reviews).
NEW QUESTION # 277
Drag and Drop Question
Drag and drop the API characteristics from the left onto the categories on the right.
Answer:
Explanation:
NEW QUESTION # 278
Refer to the exhibit.
Which two statements about the network diagram are true? (Choose two.)
- A. PC-A and PC-B are in the same subnet.
- B. The subnet of PC-C can contain 256 hosts.
- C. One of the routers has two connected serial interfaces.
- D. R1 and R3 are in the same subnet.
- E. The subnet address of PC-B has 18 bits dedicated to the network portion.
Answer: B,C
NEW QUESTION # 279
What is the well-known port for HTTPS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 280
Which protocol is used for clock synchronization between network devices?
- A. FTP
- B. BGP
- C. NNTP
- D. NTP
Answer: D
Explanation:
Network Time Protocol (NTP) is an internet protocol used to synchronize with computer clock time sources in a network. It belongs to and is one of the oldest parts of the TCP/IP suite. The term NTP applies to both the protocol and the client-server programs that run on computers.
NEW QUESTION # 281
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Cisco 200-901 Exam: Recommended Knowledge and Experience
There are no official requirements for taking the Cisco 200-901 test. The only recommendation is to just be well-versed in the content involved in the exam outline. However, the applicants are recommended to have at least one year of experience in software development as well as working knowledge of a programming language (in particular, Python).
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