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Hot Juniper JN0-224 Dumps & Trustable FreeDumps - Leader in Certification Ex

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Hot Juniper JN0-224 Dumps & Trustable FreeDumps - Leader in Certification Ex

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Juniper Automation and DevOps, Associate (JNCIA-DevOps) Sample Questions (Q11-Q16):NEW QUESTION # 11
Which two PyEZ object methods are included by default when using a Python context manager? (Choose two.)
  • A. lock () and unlock (>
  • B. pdiff() and diff()
  • C. |load() and commit ()
  • D. open() and close()
Answer: A,D
Explanation:
When using a Python context manager with Junos PyEZ, two key methods are automatically included:
open() and close(): These methods are used to establish and terminate a connection to a Junos device. When you use a context manager (the with statement), open() is called when entering the block, and close() is called when exiting, ensuring the connection is properly managed.
lock() and unlock(): These methods are used to lock the configuration database to prevent other users from making changes while you are working on it. When using a context manager, lock() is called at the start of the block, and unlock() is called at the end, ensuring safe configuration changes.
Supporting Reference:
Junos PyEZ Documentation: The documentation explains how context managers work in PyEZ, including the automatic invocation of open(), close(), lock(), and unlock() methods.

NEW QUESTION # 12
Which DevOps "Three way" principle addresses technical debt?
  • A. flow
  • B. continuous experimentation
  • C. feedback
  • D. continuous experimentation and learning
Answer: C
Explanation:
In the context of the DevOps "Three Ways" principles, the feedback principle directly addresses the management of technical debt.
The "Three Ways" are core principles guiding DevOps practices, and they are as follows:
Flow: Refers to the smooth and fast flow of work through the system, from development to operations.
Feedback: Emphasizes creating effective, fast, and continuous feedback loops between teams to catch issues early, address technical debt, and ensure quality.
Continuous experimentation and learning: Encourages constant experimentation, innovation, and learning from failures to improve systems and processes over time.
Feedback and Technical Debt:
Feedback loops play a crucial role in addressing technical debt. Technical debt refers to the implied cost of additional work that arises when code or system design decisions are made for short-term gains, such as quick fixes or temporary patches. Over time, technical debt can accumulate and degrade system performance, reliability, and maintainability.
The feedback loop ensures that issues related to technical debt (such as poor code quality, design shortcuts, or performance bottlenecks) are caught early in the process, ideally before they become major problems. Continuous monitoring, testing, and reviewing help identify and resolve technical debt incrementally rather than letting it accumulate unchecked.
Automation in feedback loops: In DevOps, automated testing, continuous integration (CI), and monitoring tools provide immediate feedback to developers, highlighting areas where technical debt is increasing. This feedback is crucial for making proactive decisions about refactoring code or improving infrastructure without waiting for problems to manifest in production.
For instance, the feedback loop might expose slowdowns in application performance after each new feature is added. This would trigger a review to either refactor the feature code or improve system resources, preventing further technical debt accumulation.
Flow and Technical Debt:
While flow focuses on the smooth transition of work through the pipeline, it indirectly helps with technical debt by ensuring continuous and streamlined processes. However, feedback mechanisms are the primary tools for identifying and resolving technical debt.
Continuous Experimentation and Learning:
This principle promotes innovation and learning from failures but does not directly address technical debt. The focus here is more on risk-taking and improvement rather than managing or eliminating technical debt.
Reference from DevOps Practices:
The Phoenix Project, a book often referenced in DevOps, discusses how feedback loops are essential for maintaining system integrity and managing technical debt effectively. By improving feedback mechanisms, teams can address small issues before they become costly to fix.
The DevOps Handbook also highlights the importance of feedback in managing technical debt, emphasizing that fast feedback allows for continuous improvement and avoids the accumulation of bad practices that would otherwise lead to technical debt.
Juniper Automation and DevOps Context: Juniper's automation frameworks integrate feedback mechanisms using tools like continuous monitoring and automated testing. These tools help engineers track the health of network systems, identify configuration drifts, and resolve issues before they lead to significant technical debt.
Additional Resources:
The Phoenix Project by Gene Kim
The DevOps Handbook

NEW QUESTION # 13
Exhibit.

Referring to the exhibit, which statement about REST is correct?
  • A. The device is configured to allow connections from the REST API Explorer
  • B. The device is configured to allow only two simultaneous REST connections.
  • C. The device is configured to allow HTTP connections on port 3030.
  • D. The device is configured to allow HTTPS connections on port 3443.
Answer: D

NEW QUESTION # 14
What is the default port for NETCONF connections over SSH?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Answer: A
Explanation:
https://www.juniper.net/document ... ssh-connection.html The IANA-assigned port for NETCONF-over-SSH sessions is 830.

NEW QUESTION # 15
Which two statements about Ansible are correct? (Choose two.)
  • A. Ansible requires a license to unlock full functionality.
  • B. Ansible modules must be written in Go.
  • C. Ansible is an open source project.
  • D. Ansible can use a single playbook to configure devices from multiple vendors.
Answer: C,D

NEW QUESTION # 16
......
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