Junos Automation Stack And DevOps Concepts

What is the primary benefit of using structured data formats (such as XML, JSON, or YAML) over unstructured CLI text output in Junos automation?

In a DevOps pipeline managing Junos devices, an engineer implements 'Infrastructure as Code' (IaC). Which practice best exemplifies this methodology when applied to Junos routing policies?

An engineer needs to explain the primary advantage of treating network configurations as code in a modern DevOps workflow. Which principle best describes this approach?

You are configuring a CI/CD pipeline for Junos network deployments. The pipeline must validate the syntax of generated candidate configurations against a physical or virtual Junos device before committing them to production. Which stage of the CI/CD pipeline does this validation step represent?

Your CI/CD pipeline includes a linters step before deployment. Why is running a linter against YAML or Jinja2 template files critical in a Junos automation workflow?

A network engineer is using Git for version control of Junos configurations. During a peer review on a pull request, a merge conflict arises because two engineers modified the same interface description line in different branches. What is the correct procedure to resolve this conflict in Git?

An automation engineer is designing a deployment strategy for Junos devices using Git branches. Which branching strategy model aligns best with continuous delivery where feature branches are merged frequently into a shared integration branch that automatically triggers staging tests?

You are reviewing a pull request that updates Junos interface configurations using Jinja2 templates. The template contains a conditional statement checking an interface speed variable. What happens if the variable is undefined during template rendering?

When managing Junos configuration changes in a team environment, why is atomic configuration rollback capability crucial during automated deployments?

In the context of network DevOps, what is the purpose of implementing idempotency in automation scripts or playbooks targeting Junos devices?

Which protocol is natively used by Junos XML management APIs to provide structured, session-oriented configuration and operational data exchange?

What is a primary characteristic of a DevOps culture when applied to network operations (NetOps)?

Which command is used in Git to save staged changes to the local repository with a descriptive commit message?

In a Junos automation environment, what role does a schema (such as YANG or Junos XSD) play when interacting with NETCONF?

Why is it considered a best practice to store sensitive secrets (such as SNMP community strings or API tokens) outside of plaintext Jinja2 templates in a Git repository?

What is the primary function of a version control system (VCS) like Git in a Junos automation workflow?

A network engineer writes a Python script using Junos PyEZ to push a configuration change. The script uses the ConfigTable or Config class. What mechanism does PyEZ use under the hood to ensure the configuration lock is released even if the script encounters an unhandled exception?

In a CI/CD pipeline for network changes, what is the role of automated unit testing?

Which Junos automation toolset relies heavily on XML over NETCONF and provides robust Python libraries tailored specifically for Junos network devices?

What is the primary benefit of decoupling network configuration data (YAML/JSON) from presentation templates (Jinja2) in network automation?

During a NETCONF session with a Junos device, an automation script issues an RPC to load a configuration. The device returns a response containing an <rpc-error> tag. What does this indicate?

Which term describes the practice of continuously building, testing, and validating software or network configurations in an automated pipeline?

Which TWO benefits are gained by applying DevOps principles to Junos network management? (Choose two)

You are configuring a webhook in your version control system to trigger an automated CI/CD pipeline whenever a developer pushes a configuration commit to the main branch of your Junos automation repository. What security mechanism should be implemented on the receiving pipeline webhook endpoint?

When designing a version control workflow for Junos configurations using Git, which THREE practices are considered industry best standards? (Choose three)

Which TWO components are essential parts of a model-driven network automation architecture on Junos devices? (Choose two)

In Git version control, which TWO commands are used to integrate changes from one branch into another? (Choose two)

Which TWO file formats are commonly used for structuring network configuration data and automation templates in Junos DevOps pipelines? (Choose two)

In a CI/CD pipeline configured for Junos network changes, which THREE automated testing steps are typically performed before production deployment? (Choose three)

When interacting with Junos devices via NETCONF, which TWO RPC operations are part of standard NETCONF protocol capabilities? (Choose two)

Which TWO tools or platforms are commonly used for version control and hosting of Junos automation code repositories? (Choose two)

Which THREE principles are foundational to the DevOps movement when applied to network engineering? (Choose three)

Which TWO advantages does structured telemetry and data streaming offer over traditional SNMP polling in Junos automation? (Choose two)

In a Git repository managing Junos configurations, which TWO files or directories are typically added to the '.gitignore' file to prevent sensitive or temporary files from being tracked? (Choose two)

When writing Python automation scripts for Junos using PyEZ, which THREE objects or methods are commonly used for device interaction and configuration management? (Choose three)

Which TWO benefits are provided by implementing automated CI/CD pipelines for Junos network changes? (Choose two)

Which THREE mechanisms are valid methods for authenticating and establishing a NETCONF session with a Junos device? (Choose three)

When executing a configuration commit in Junos via NETCONF, which TWO commit parameters or modifiers can be specified in the RPC? (Choose two)

Which TWO characteristics describe declarative network automation compared to imperative scripting? (Choose two)

Which THREE tasks are typical responsibilities of a network DevOps engineer managing a Junos infrastructure? (Choose three)

In a Junos NETCONF automation workflow, what happens during a lock operation on the configuration database? (Choose two)

An automation engineer is designing a Junos network automation workflow and needs to select the component of the Junos automation architecture responsible for parsing XML and JSONRPC client requests and interacting directly with the Junos kernel and daemons. Which component fulfills this role?

A network engineer is establishing a version control workflow for network configurations using Git. Which Git command should the engineer use to stage newly created configuration template files in the local repository working directory so they are included in the next commit?

An operations team is applying DevOps principles to network automation on Junos devices. They want to ensure that all changes to device operational states and configurations are treated as disposable and repeatable. Which DevOps practice best describes rebuilding device configurations completely from centralized version-controlled templates rather than performing manual incremental hot-patches?

A network automation engineer is writing a Python script using the Junos PyEZ library to retrieve operational state from a QFX Series switch. The script needs to retrieve interface statistics using an RPC instead of raw CLI text parsing. Which PyEZ method should the engineer execute to invoke the 'get-interface-information' RPC and receive the structured XML response?

An enterprise network is adopting a CI/CD pipeline for Junos network changes using GitLab CI. A developer wants to ensure that a test job automatically runs whenever a merge request is opened against the main branch. In which configuration file must this pipeline behavior be defined, and what is the primary keyword used to control branch execution?

A network architect is designing a version control strategy for multi-vendor network operations. They need a system that tracks changes to text-based configuration files, allows multiple engineers to work on separate feature branches concurrently, and merges changes systematically. Which category of tool is being utilized?

An organization is implementing a Git-based version control strategy for Junos network configurations. Which THREE practices are considered standard DevOps workflows when managing network configurations in Git? (Choose THREE)

A DevOps engineer is designing a CI/CD pipeline for validating Junos configuration changes prior to deployment. Which THREE actions are typically performed during the automated CI pipeline 'test' or 'validate' stage? (Choose THREE)

A network automation engineer is utilizing the Junos PyEZ library in Python to manage device configurations. Which THREE methods or classes are part of the core Junos PyEZ library functionality? (Choose THREE)

A network automation team is evaluating Junos PyEZ for managing a fleet of Junos devices. They want to understand which capabilities PyEZ provides natively. (Choose two.)

An engineer is building a Python application to manage Junos devices. They need to open a NETCONF session, retrieve the device's hostname and model, and handle exceptions if the device is unreachable. Which Junos PyEZ component is designed specifically for establishing the NETCONF session and executing RPCs?

A network team uses a CI/CD pipeline to manage Junos device configurations. After a developer merges a change to the main branch, the pipeline is triggered automatically. Which DevOps principle is primarily demonstrated when the pipeline deploys the tested configuration to production devices without manual intervention?

An engineer is designing a Junos automation solution that requires programmatic access to retrieve operational data and configuration from devices. The solution must use a standardized, vendor-neutral protocol that supports capabilities exchange and transactions. Which protocol should be used?

A network automation team is using Junos PyEZ to retrieve interface statistics from a device. They need to ensure that the script can handle multiple devices concurrently and that each device connection is properly closed after the operation. Which approach should they take?

An engineer is building a CI/CD pipeline for Junos device configuration. The pipeline must validate configuration changes before deployment and ensure that only tested configurations are merged into the main branch. Which two practices are essential for achieving this goal? (Choose two.)

A network engineer is designing a new automation workflow for Junos devices and wants to understand how the Junos automation stack separates its responsibilities. Which statement accurately describes the role of the Junos management daemon (mgd) in this stack?

A DevOps engineer is building a pipeline that uses Junos PyEZ to retrieve operational data from a fleet of Junos devices. The engineer wants to understand which transport protocol PyEZ uses by default and why this matters for firewall rules. Which statement is correct?

An engineer is using Junos PyEZ to load a configuration change onto a device. The script uses the Config class to lock the candidate configuration, load a set of changes, and then commit. During testing, the commit fails because another user has an exclusive lock on the configuration. What is the correct behavior of the engineer's script when it attempts to lock the configuration in this situation?