[Apr-2025] 200-901 Braindumps – 200-901 Questions to Get Better Grades
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NEW QUESTION # 148
A local Docker alpine image has been created with an image ID of a391665405fe and tagged as "latest". Which command creates a running container based on the tagged image, with the container port 8080 bound to port 80 on the host?
- A. docker build -p 8080:80 alpine:latest
- B. docker exec -p 8080:80 alpine:latest
- C. docker run -p 8080:80 alpine:latest
- D. docker start -p 8080:80 alpine:latest
Answer: C
Explanation:
https://docs.docker.com/get-started/02_our_app/
NEW QUESTION # 149
A developer creates a program in which an object maintains a list of classes based on the observer pattern. The classes are dependent on the object. Whenever the state of the object changes, it notifies the dependent classes directly through callbacks. Which advantage of the observer pattern offers minimum dependencies and maximum flexibility between dependent objects or classes?
- A. mediation
- B. cohesion
- C. loose coupling
- D. tight coupling
Answer: C
Explanation:
The observer pattern is designed to create a relationship where an object (subject) maintains a list of its dependents (observers) and notifies them of any state changes. This pattern achieves loose coupling between the subject and its observers, allowing them to interact without being tightly bound to each other. This flexibility ensures that changes in the subject do not heavily impact the observers, and vice versa.
Reference: Cisco DevNet Design Patterns
NEW QUESTION # 150
The project is migrated to a new codebase, the "old_project" directory must be deleted. The directory has multiple read-only files, and it must be deleted recursively without prompting for confirmation. Which bash command must be used?
- A. rm -rf old_project
- B. rm -r old_project
- C. rmdir old_project
- D. rmdir -p old_project
Answer: A
NEW QUESTION # 151
Refer to the exhibit.
The definition of the YANG module and a RESTCONF query sent to a Cisco IOc XE device is shown. Which statement is correct if the RESTCONF interface responds with a 204 status code?
- A. The query failed to set the logging seventy level due to an invalid path.
- B. The query retrieved the logging seventy level.
- C. The query updated the logging seventy level or created it if not present on the device.
- D. The query failed at retrieving the logging seventy level.
Answer: C
NEW QUESTION # 152
Drag and drop the network component names from the left onto the correct descriptions on the right. Not all options are used.
Answer:
Explanation:
Explanation
1 - A, 2 - B, 3 - D, 4 - C
NEW QUESTION # 153
Refer to the exhibit.
Which command needs to be placed on the box where the code is missing to output the value of page_jd in the Python 3.7 script?
A)
B)
C)
D)
- A. Option C
- B. Option B
- C. Option D
- D. Option A
Answer: A
NEW QUESTION # 154
Which status code is used by a REST API to indicate that the submitted payload is incorrect?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
https://httpstatuses.com/
400 Bad Request
403 Forbidden
405 Method Not Allowed
421 Misdirected Request
429 Too Many Requests
NEW QUESTION # 155
Drag and Drop the Bash commands from the left onto the correct actions on the right.
Answer:
Explanation:
NEW QUESTION # 156
An engineer prepares a set of Python scripts to interact with network devices. To avoid network performance issues, the engineer wants to run them in a test environment. Which resource must be used to monitor the live execution of code in an always-available environment?
- A. learning labs
- B. code exchange
- C. packet tracer
- D. sandbox
Answer: D
Explanation:
Comprehensive Detailed Step by Step Explanation with ReferencesA sandbox environment is an isolated testing environment that mimics a live network. It allows engineers and developers to run scripts and test code without affecting the production network. Cisco provides sandboxes through the DevNet portal, which are always available for testing and experimentation with network automation and programmability. Using a sandbox helps monitor the live execution of code in a controlled and safe manner, ensuring that any potential issues do not impact the actual network.
References:
* Cisco DevNet Sandboxes
* Cisco DevNet Associate Certification Guide
NEW QUESTION # 157
What is a benefit of organizing code into modules?
- A. simplified development
- B. better maintainability
- C. compatibility with REST APIs
- D. reduced development costs
Answer: B
NEW QUESTION # 158
A developer is working on a new feature in a branch named 'newfeat123456789' and the current working primary branch is named 'prim987654321'. The developer requires a merge commit during a fast forward merge for record-keeping purposes. Which Git command must be used?
- A. git commit --no-ff newfeat123456789
- B. git add --commit-ff newfeat123456789
- C. git merge --no-ff newfeat123456789
- D. git reset --commit-ff newfeat123456789
Answer: C
Explanation:
The --no-ff option in the git merge command ensures that a merge commit is always created, even when a fast-forward merge is possible. This is useful for keeping a clear history of feature branches being merged into the main branch.
* Fast Forward Merge: By default, Git performs a fast-forward merge if there are no diverging changes.
This can result in a linear commit history without a separate merge commit.
* Using --no-ff: The --no-ff option forces Git to create a merge commit, preserving the context that a feature branch was merged into the main branch, which is crucial for record-keeping and audit trails.
References:
* Git Merge Documentation: Git Merge
NEW QUESTION # 159
Refer to the exhibit.
An engineer must add new users and set privileges for executing a few Python scripts. The engineer prepares a Bash script to automate this task. The script ds a user and a group from the command-line arguments, creates a directory, and copies the Python scripts to it. The script then changes to the directory and lists the scripts, used on the script workflow, which process is being automated within the loop by using the list of Python scripts?
- A. assigning execution privileges to the owner, setting the user and group owner to the scripts that were initially created, and storing the script names in a file.
- B. creating a file with the content of all the files, assigning execution permissions to each script, and then changing ownership to the initially created user and group.
- C. assigning execution privileges to everyone and changing the ownership to the initially created user and group
- D. removing the files that are not Python, listing the Python files, and assigning execution privileges to the initially created user and group.
Answer: A
Explanation:
The provided Bash script performs the following steps:
* Adds a new user with useradd.
* Adds a new group with groupadd.
* Creates a directory /opt/scripts.
* Copies all Python scripts (*.py) to the /opt/scripts directory.
* Changes to the /opt/scripts directory.
* Lists the Python scripts and processes each script in a loop.
Within the loop, the script:
* Appends the script name to a file content.txt.
* Assigns execution privileges to the script (chmod u+x).
* Changes the ownership of the script to the newly created user and group (chown $1:$2).
This workflow automates the process of setting execution permissions for the owner (the newly created user) and assigning the user and group ownership to the scripts. It also stores the script names in content.txt.
References:
* Cisco DevNet Associate Certification Guide
* Bash Scripting Documentation
NEW QUESTION # 160
Which two descriptions can be given to an application that is interacting with a webhook? (Choose two.)
- A. transaction monitor
- B. codec
- C. listener
- D. processor
- E. receiver
Answer: C,E
Explanation:
Explanation/Reference:
NEW QUESTION # 161
What is impacted by the network bandwidth on an application?
- A. rate of data transferred between two endpoints
- B. number of data packets dropped during transmission
- C. time taken for a data packet to travel between two endpoints
- D. consistency in the arrival of data packets between two endpoints
Answer: A
Explanation:
Time taken for a data packet to travel between two endpoints (latency) depends on factors like distance, routing, and propagation delay. It is not directly tied to bandwidth.
NEW QUESTION # 162
Refer to the exhibit. Which API is called when the REMOTE TU sends a TCONNECT Response to the LOCAL TU?
- A. TCONNECT confirm
- B. TCONNECT indication
- C. TCONNECT completion
- D. TCONNECT request
Answer: C
NEW QUESTION # 163
Which principle is a value from the manifesto for Agile software development?
- A. customer collaboration over contract negotiation
- B. processes and tools over teams and inter actions
- C. detailed documentation over working software
- D. adhering to a plan over responding to requirements
Answer: A
Explanation:
Customer satisfaction and involvement is important and changes are always welcome.
https://www.cisco.com/c/dam/global/en_hk/solutions/collaboration/files/agile_product_developme nt.pdf
NEW QUESTION # 164
A developer creates an application that must provide an encrypted connection or API keys. The keys will be used to communicate with a REST API. Which command must be used for the secure connection?
- A. curl
-X PUSH 'http://username.app.com/endpoint/?api_key=12345abcdef' - B. curl
-X GET 'http://username.app.com/endpoint/?api_key=12345abcdef' - C. curl -v 'ftp://username.app.com/endpoint/?api_key=12345abcdef'
- D. curl -X GET 'https://username.app.com/endpoint/?api_key=12345abcdef'
Answer: D
Explanation:
To provide an encrypted connection when using API keys to communicate with a REST API, the connection must use HTTPS. The curl command with the -X GET option and an HTTPS URL ensures that the communication is encrypted, protecting the API key and data in transit.
Reference: Cisco DevNet Secure API Communication
NEW QUESTION # 165
Which Cisco product provides malware and content filtering through DNS?
- A. Cisco Umbrella
- B. Cisco ASA Firepower module
- C. Cisco ISE
- D. Cisco AMP
Answer: A
Explanation:
Cisco Umbrella processes billions of DNS requests per day, analyzing and learning about various activities and blocking requests to unwanted and malicious destinations before a connection is even established. Cisco Umbrella incorporates the following security services in its offering, regardless of where the user is located:
It blocks malware, ransomware, and phishing attempts from malicious or fraudulent sites.
NEW QUESTION # 166
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.
- B.
- C.
- D.
Answer: C
NEW QUESTION # 167
What is the purpose of the Cisco VIRL software tool?
- A. To verify configurations against compliance standards
- B. To simulate and model networks
- C. To automate API workflows
- D. To test performance of an application
Answer: B
Explanation:
Reference: https://www.speaknetworks.com/cisco-virl-better-gns3/
Cisco VIRL (Virtual Internet Routing Lab) is a powerful network simulation platform designed to simulate and model networks. It allows users to create and test network topologies, run simulations, and visualize network behavior in a controlled virtual environment. This tool is particularly valuable for network engineers and administrators to test configurations, troubleshoot issues, and validate network designs without the need for physical hardware.
Reference: Cisco VIRL Overview
NEW QUESTION # 168
Which two items are Cisco DevNet resources? (Choose two.)
- A. Software research
- B. API Documentation
- C. Sandbox
- D. TAC support
- E. Bitbucket
Answer: B,C
Explanation:
Reference: https://developer.cisco.com/
NEW QUESTION # 169
Refer to the exhibit.
What is the effect of this Ansible playbook on an IOS router?
- A. The start-up configuration of the IOS router is copied to a local folder.
- B. A new running configuration is pushed to the IOS router.
- C. A new start-up configuration is copied to the IOS router.
- D. The current running configuration of the IOS router is backed up.
Answer: D
NEW QUESTION # 170
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