JNCIA-DevOps Juniper Associate DevOps

Which protocol does the Junos XML API use to transport RPC requests and responses?

• AREST over HTTP/HTTPS
• BNETCONF over SSH
• CSOAP over HTTPS
• DCLI over Telnet

When retrieving Junos configuration via the XML API, which RPC call is used to get the entire configuration in XML format?

• A<get-software-information/>
• B<get-config/>
• C<get-interface-information/>
• D<load-configuration/>

Which Python library is the standard client for making NETCONF connections to Junos devices?

• Aparamiko
• Bncclient
• Cnetmiko
• Drequests

When establishing a NETCONF session with an ncclient manager.connect() call to a Junos device, which SSH port is used by default?

• A22
• B830
• C443
• D8080

In Junos PyEZ, which class is the primary object used to create a connection to a Junos device?

• Ajnpr.junos.Router
• Bjnpr.junos.Device
• Cjnpr.junos.Connection
• Djnpr.junos.Host

In PyEZ, how do you invoke the 'get-interface-information' RPC on a connected Device object named 'dev'?

• Adev.cli('show interfaces')
• Bdev.rpc.get_interface_information()
• Cdev.rpc('get-interface-information')
• Ddev.execute('<get-interface-information/>')

What does the 'dev.facts' dictionary contain in a PyEZ Device object after opening a connection?

• AThe full device configuration in Python dict format
• BDevice metadata such as hostname, model, Junos version, and serial number
• CA list of all available RPC methods
• DInterface statistics and counters

Which PyEZ utility class is used to manage Junos configuration changes, including loading and committing configuration?

• Ajnpr.junos.utils.sw.SW
• Bjnpr.junos.utils.config.Config
• Cjnpr.junos.utils.fs.FS
• Djnpr.junos.utils.scp.SCP

In a Jinja2 template, which delimiter is used to output a variable value?

• A{% variable %}
• B{{ variable }}
• C{# variable #}
• D<< variable >>

You are building a Jinja2 template to generate Junos interface configuration. The template receives a list called 'interfaces'. Which Jinja2 construct iterates over this list?

• A{% foreach item in interfaces %}
• B{% for item in interfaces %}
• C{{ for item in interfaces }}
• D{% loop item in interfaces %}

In YAML, how are list items typically denoted?

• AWith square brackets around each item
• BWith a dash (-) followed by a space before each item
• CWith curly braces around each item
• DWith a semicolon at the end of each item

A Junos PyEZ script uses a YAML file for device inventory. Which Python library is used to parse YAML files into Python dictionaries?

• Ajson
• Byaml (PyYAML)
• Ctoml
• Dconfigparser

Which two languages are supported for writing Junos operational (op) scripts?

• APerl and Ruby
• BSLAX and Python
• CBash and JavaScript
• DTCL and Go

To enable a Python op script called 'check-bgp.py' on a Junos device, under which configuration hierarchy is it enabled?

• Aset system automation scripts op file check-bgp.py
• Bset system scripts op file check-bgp.py
• Cset routing-options scripts op file check-bgp.py
• Dset event-options scripts op file check-bgp.py

What is the primary purpose of a Junos commit script?

• ATo execute operational commands when a commit is triggered
• BTo validate configuration changes and optionally generate warnings or transient changes b…
• CTo back up the running configuration to a remote server after each commit
• DTo schedule commits at specific times of day

A commit script generates a 'transient change' in Junos. What distinguishes a transient change from a permanent configuration change?

• ATransient changes are applied to the candidate configuration but not committed
• BTransient changes appear in the active configuration at runtime but are not saved in the…
• CTransient changes are logged to syslog but not applied to the configuration
• DTransient changes are applied to a secondary routing engine only

In Junos event policies, which configuration hierarchy is used to define an event policy that triggers when a specific syslog event occurs?

• Aset system scripts event file <script>
• Bset event-options policy <name> events <syslog-event>
• Cset system events trigger <syslog-event>
• Dset routing-options event-policy <name>

An event policy is configured to trigger when the syslog event SNMP_TRAP_LINK_DOWN occurs. In addition to syslog triggers, which other trigger type can activate a Junos event policy?

• AHTTP webhook
• BSNMP trap reception
• CBGP route change
• DInterface speed change

Which Junos service must be enabled before the Junos REST API becomes accessible?

• Aset system services web-management http
• Bset system services rest http
• Cset system services netconf ssh
• Dset system services ftp

When making a REST API call to a Junos device to retrieve routing table information, which HTTP method is appropriate?

• APOST
• BGET
• CPUT
• DDELETE

Which Ansible collection provides modules for managing Junos devices, including junos_command and junos_config?

• Acisco.ios
• Bjunipernetworks.junos
• Cansible.netcommon
• Dcommunity.network

In Ansible, which module from the junipernetworks.junos collection is used to run operational show commands on a Junos device and return the output?

• Ajunipernetworks.junos.junos_facts
• Bjunipernetworks.junos.junos_command
• Cjunipernetworks.junos.junos_config
• Djunipernetworks.junos.junos_ping

When using the junipernetworks.junos.junos_config module to push configuration changes, which parameter controls whether the configuration is confirmed or requires a rollback if not confirmed within a timeout?

• Acommit_timeout
• Bconfirm
• Crollback
• Dcheck

In Git, which command creates a new branch called 'feature/automation' and switches to it in one step?

• Agit branch feature/automation && git switch feature/automation
• Bgit checkout -b feature/automation
• Cgit new-branch feature/automation
• Dgit create feature/automation

What is the key difference between 'git merge' and 'git rebase' when integrating changes from one branch into another?

• Agit merge creates new commits; git rebase deletes the source branch
• Bgit merge preserves branch history with a merge commit; git rebase rewrites commits onto…
• Cgit merge requires a pull request; git rebase does not
• Dgit merge only works on local branches; git rebase works on remote branches

Which Git command stages all modified and new files in the current directory for the next commit?

• Agit commit -a
• Bgit add .
• Cgit stage --all
• Dgit push --staged

In a CI/CD pipeline for network automation, what is the primary purpose of the 'Continuous Integration' (CI) stage?

• ATo deploy configuration changes directly to production devices
• BTo automatically build, test, and validate code changes when pushed to a repository
• CTo monitor network devices for performance issues
• DTo create backups of device configurations

In a network automation CI/CD pipeline, which step typically follows a successful CI build before deploying to production Junos devices?

• AImmediately push to all production devices
• BDeploy to a lab or staging environment for integration testing
• CArchive the code in a read-only repository
• DSend an email notification and stop the pipeline

In SaltStack terminology, what is the component that runs on each managed device (or a proxy for it) and receives commands from the Salt master?

• ASalt pillar
• BSalt minion
• CSalt grain
• DSalt reactor

When using SaltStack to manage Junos devices, which SaltStack mechanism is used because Junos cannot run a native Salt minion agent?

• ASalt cloud
• BSalt proxy minion
• CSalt SSH
• DSalt beacon

When comparing the Junos REST API and NETCONF for automation, which statement is most accurate?

• AREST API provides stronger transactional guarantees for configuration changes than NETCONF
• BNETCONF provides native configuration transaction support with candidate datastore and co…
• CREST API uses XML encoding while NETCONF uses JSON
• DNETCONF requires more network ports to be opened than the REST API

Which automation interface provides the highest level of structured data access for Junos configuration management with native transaction support?

• ACLI (Junos command line)
• BREST API
• CNETCONF
• DSNMP

In the Junos XML API, what does the 'format' attribute on an RPC request control?

• AThe encoding of the SSH transport layer
• BThe output format of the RPC response (xml, text, json)
• CThe configuration format to be loaded (set, xml, text)
• DThe authentication method used for the request

In PyEZ, what is the correct sequence of operations to safely load and commit a configuration change using the Config utility?

• AConfig.load() → Config.commit() → Config.lock()
• BConfig.lock() → Config.load() → Config.diff() → Config.commit() → Config.unlock()
• CConfig.diff() → Config.lock() → Config.load() → Config.commit()
• DConfig.load() → Config.diff() → Config.unlock() → Config.commit()

A Jinja2 template for Junos configuration uses the filter '| default('N/A')' on a variable. What does this filter do?

• AConverts the variable to uppercase
• BReturns 'N/A' if the variable is undefined or evaluates to false/None
• CValidates that the variable matches the string 'N/A'
• DSorts the variable if it is a list

After running the junipernetworks.junos.junos_facts module in an Ansible playbook, which variable prefix is used to access gathered Junos facts?

• Ahostvars['inventory_hostname']
• Bansible_net_
• Cjunos_facts_
• Ddevice_facts_

When writing a Python op script for Junos, which Python module provides the functions needed to generate XML output in the JUNOS XML RPC format?

• Alxml.etree
• Bjcs (Junos Class Library)
• Cxml.dom.minidom
• Djson

A network automation team uses a 'feature branch workflow' in Git. What is the correct sequence of steps when developing a new Ansible playbook?

• ACommit to main → test → push to feature branch
• BCreate feature branch → develop and commit → push feature branch → open pull request → me…
• CPush directly to main → create feature branch → backport changes
• DFork repository → commit to main → send patch file via email

In NETCONF, what is the 'candidate' datastore and how does it differ from the 'running' datastore?

• ACandidate is the startup configuration; running is the active configuration in RAM
• BCandidate is a workspace for pending configuration changes that are not yet committed; ru…
• CCandidate stores configuration backups; running stores the current configuration
• DCandidate and running are identical and point to the same data

You need to convert the Junos CLI command 'show bgp summary' to its XML RPC equivalent. What is the correct transformation rule for Junos CLI to XML RPC?

• APrepend 'show-' to each word
• BReplace spaces with hyphens and prepend 'get-' to form the RPC name (e.g., 'get-bgp-summa…
• CConvert to camelCase (e.g., 'showBgpSummary')
• DWrap the CLI command in a <cli> XML element

PyEZ Tables and Views allow you to define structured data retrieval from Junos. Where are Table/View definitions stored in a PyEZ project?

• AIn the device's /var/db/scripts/ directory
• BIn YAML files that describe the RPC to call and the XML elements to extract
• CIn SQL database tables
• DIn the Junos configuration hierarchy

In an Ansible inventory file for Junos device management, which connection plugin is typically specified to use NETCONF for connectivity?

• Aansible_connection: ssh
• Bansible_connection: netconf
• Cansible_connection: local
• Dansible_connection: paramiko

In a Junos automation CI/CD pipeline, which tool is commonly used to validate Ansible YAML files for syntax and best practice errors before deployment?

• Apylint
• Bansible-lint
• Ceslint
• Drubocop

SLAX is the primary scripting language for classic Junos op scripts. What is the underlying technology that SLAX compiles to?

• APython bytecode
• BXSLT (Extensible Stylesheet Language Transformations)
• CJavaScript (Node.js runtime)
• DCompiled C code

Using ncclient to connect to a Junos device, which ncclient method is used to commit the candidate configuration?

• Amanager.save_config()
• Bmanager.commit()
• Cmanager.push_config()
• Dmanager.apply_config()

In a YAML Ansible playbook, how is a multi-line string value typically specified to preserve newlines?

• AUsing double quotes with \n escape sequences
• BUsing the literal block scalar indicator '|' followed by indented lines
• CWrapping the text in <![CDATA[ ]]> XML tags
• DUsing backtick characters around the text

Junos Space Network Director provides centralized management for Junos devices. Which feature of Junos Space simplifies bulk configuration deployment across many devices?

• APer-device CLI sessions managed by Space
• BDevice templates that can be applied to groups of devices
• CSNMP bulk polling
• DTFTP file transfer to all devices simultaneously