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Nokia 4A0-AI1 Nokia NSP IP Network Automation Professional Composite Exam Online Training

Question #1

What task does Apache FreeMarker perform?

  • A . It instantiates templates.
  • B . Separates the configuration and data states
  • C . Transports YANG data
  • D . Allows communication between NSP applications

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Correct Answer: A
A

Explanation:

Apache FreeMarker is a templating language used to create dynamic webpages. It is designed to separate the configuration and data states, allowing the template to have a consistent look and feel across all webpages. FreeMarker allows the template to instantiate the data, allowing the template to be reused in different contexts. It does not allow communication between NSP applications or transport YANG data.

Question #2

Which of the following statements about an intent is FALSE?

  • A . It is stored in the database as the source of truth.
  • B . It is an instance of an intent type.
  • C . It can be created and deleted through RESTCONF API.
  • D . It only involves services.

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Correct Answer: D
D

Explanation:

According to the Nokia NSP Intent Manager Application Help2, an intent has the following characteristics:

✑ It is stored in the database as the source of truth.

✑ It is an instance of an intent type, which defines the structure and logic of an intent.

✑ It can be created and deleted through RESTCONF API or through the Intent Manager GUI.

✑ It can involve services, nodes, links, paths, or any other network elements.

Question #3

Which of the following is NOT a valid flow control attribute?

  • A . on-failure
  • B . on-complete
  • C . on-success
  • D . on-error

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Correct Answer: B
B

Explanation:

On-complete, on the other hand, is not a standard flow control property that is typically used to specify how a workflow behaves after a task is completed. In the context of a workflow, the completion of a task can be specifically distinguished by on-success or on-failure, rather than using a generalized "done" state.

Question #4

Which of the following is NOT an NSP application?

  • A . Service Fulfilment
  • B . Network Supervision
  • C . IP/MPLS Optimization
  • D . Network Virtualization

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Correct Answer: C
C

Explanation:

According to the Nokia NSP Learning and Certification Program2, there are four main NSP applications:

✑ Service Fulfillment: Enables service providers to design, create, and deliver IP/MPLS services across a multi-vendor network.

✑ Network Supervision: Provides real-time visibility and control of network performance, faults, and inventory across physical and virtual networks.

✑ IP/MPLS Optimization: Optimizes network resources by applying advanced algorithms and machine learning techniques to automate traffic engineering and path computation.

✑ Network Virtualization: Enables service providers to create and manage virtualized network functions (VNFs) and network slices using cloud-native technologies.

Question #5

Which of the following is NOT a characteristic of Infrastructurelure Intents?

  • A . Policy management
  • B . System security
  • C . Initial hardware configuration
  • D . L2/L3 VPN configuration of multiple services

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Correct Answer: C
C

Explanation:

Initial hardware configuration, on the other hand, involves more of the basic setup of the physical device, such as the boot configuration of the device, which is usually done when the device is first installed, rather than the focus of the infrastructure intent. Infrastructure intent is more focused on management and automation at the network level than on the initial setup of physical hardware.

Question #6

What happens if you select "Modify" under "Behavior" in the WebUI and successfully modify anintent?

  • A . The Intent is updated in the Intent Manager database and no other actions are performed.
  • B . The Intent is updated in the Intent Manager database and compared with the configuration on the target node.
  • C . The Intent is updated in the Intent Manager database and synchronized.
  • D . The version number of the Intent is increased and multiple copies of the Intent are stored In the Intent Manager.

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Correct Answer: A
A

Explanation:

This option reflects the process where the intent’s information is updated within the database to reflect the modifications made. This process is primarily about updating the stored data; it doesn’t inherently include automatic comparison with the configuration on the target node, synchronization actions, or versioning and storage of multiple copies of the intent without further specific actions or configurations being set to do so.

Question #7

Which of the following is NOT an example of good coding principles?

  • A . Offloading code
  • B . Using logging to debug code
  • C . Using hard coded values
  • D . Adding notes/comments into code

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Correct Answer: C
C

Explanation:

Good coding principles aim to make the code more maintainable and easier to debug. Offloading code and using logging to debug code are both good coding principles, as they make the code more efficient and easier to debug. Adding notes and comments into code is also a good coding practice, as it makes the code more readable and understandable. However, using hard coded values is not a good coding practice, as it makes the code more difficult to maintain and debug.

Question #8

Which of the following is the proper FULL syntax to describe a workflow task using the std.hrtp action to access a url using the GET method?

A) my_task:

action: std.http

input:

url: http://test.org

method: GET

B) my_task:

action: std.http

input:

html: http://test.org

method: GET

C) my_task:

action: std.http url= "http://test.org" method:="GET"

D) my_task:

action: std.http html= "http://test.org" method:="GET"

  • A . Option A
  • B . Option B
  • C . Option C
  • D . Option D

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Correct Answer: A
Question #9

Which feature can be used to make a workflow portable if the workflow needs to be executed on either a development or production lab)?

  • A . Conditional transactions
  • B . Environments
  • C . Forking
  • D . Joining

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Correct Answer: B
B

Explanation:

a workflow can use environments to make it portable if the workflow needs to be executed on either a development or production lab. Environments are files that contain key-value pairs that can be used as input parameters for workflows1. Environments allow workflows to be executed with different settings without modifying the workflow definition1.

Question #10

Which of the following timing attributes will halt the entire workflow and require user intervention to proceed?

  • A . wait-before
  • B . wait-after
  • C . timeout
  • D . pause-before

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Correct Answer: D
D

Explanation:

This attribute specifies a manual approval step before executing a task1. The other attributes will either delay or abort the execution of a task, but not halt the entire workflow.

Question #11

Which of the following system actions will pause a workflow at some point and wait for an operator to confirm or deny a particular course of action?

  • A . std. sleep
  • B . nsp.wait
  • C . nsp.user_input
  • D . nsp.pause_before

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Correct Answer: C
C

Explanation:

This system action allows you to pause a workflow and prompt the user for input. You can use this action to confirm or deny a course of action, or to enter some data that isrequired for the workflow1. For example, you can use nsp.user_input to ask the user if they want to continue with a service deployment or rollback.

The other options are not correct because:

✑ std.sleep is a standard Python function that pauses the execution of a script for a specified number of seconds2.

✑ nsp.wait is a system action that waits for an event or condition to occur before resuming the workflow1. For example, you can use nsp.wait to wait for a service activation status change or a network element alarm.

✑ nsp.pause_before is not a valid system action. There is no such action defined in the NSP documentation1.

Question #12

Which of the following is NOT a characteristic of Intent-based networking?

  • A . Abstraction
  • B . Virtualization
  • C . Automation
  • D . Persistence

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Correct Answer: B
B

Explanation:

Virtualization is not a characteristic of intent-based networking, but rather a technology that enables it. Virtualization is the process of creating virtual versions of physical resources, such as servers, storage, or networks1. Virtualization allows for more flexibility and scalability in network design and management, but does not imply any automation or intelligence.

Question #13

Which of the following sequences best describes the process of moving to SDN based self-regulated networking?

  • A . action-based networking -> static networking -> adaptive networking -> autonomous networking
  • B . static networking -> action-based networking -> autonomous networking -> adaptive networking
  • C . static networking -> action-based networking -> adaptive networking > autonomous networking
  • D . action-based networking -> static networking -> autonomous networking -> adaptive networking

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Correct Answer: C
C

Explanation:

Nokia NSP is a platform that enables management, control and automation of IP/Optical networks. It supports various levels of network automation, from static networking to autonomous networking.

The process of moving to SDN based self-regulated networking involves four stages:

✑ Static networking: The network is manually configured and operated by human operators. There is no automation or intelligence involved.

✑ Action-based networking: The network is partially automated by using predefined actions or scripts that are triggered by events or commands. There is still human intervention required for complex tasks or exceptions.

✑ Adaptive networking: The network is dynamically automated by using policies, analytics and machine learning that can adjust the network behavior based on changing conditions and objectives. There is minimal human intervention required for oversight and validation.

✑ Autonomous networking: The network is fully automated by using artificial intelligence and closed-loop feedback that can optimize the network performance and reliability without any human involvement. The network can self-heal, self-optimize and self-protect.

Question #14

Which of the following files contains all the back end implementations required for Intent configurations to be performed?

  • A . script-content.js
  • B . meta-info.json
  • C . yang-patch.json
  • D . util.js

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Correct Answer: A
A

Explanation:

The script-content.js file contains all the back end implementations required for Intent configurations to be performed.

The script-content.js file is a JavaScript file that defines the logic for creating, updating, deleting and synchronizing intents. It also defines the validation rules and error handling mechanisms for intents.

For example, a script-content.js file could contain:

function createIntent(intent) { // logic for creating an intent } function updateIntent(intent) { // logic for updating an intent }

Question #15

Which of the following statements about Kafka is FALSE?

  • A . It is a distributed messaging system.
  • B . It is an open-source platform.
  • C . It is used to send real-time notifications.
  • D . It has four components: Producer, Consumer, Topic and Connector.

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Correct Answer: D
D

Explanation:

Kafka is a distributed messaging system that is open-source and can be used to send real-time notifications. However, it has more than four components, such as brokers, partitions, replicas, consumer groups and zookeeper.

Question #16

Which of the following statements about the NSP Kafka service is FALSE?

  • A . It allows an API client to receive event or alarm notifications.
  • B . It allows an API client to subscribe to different event types.
  • C . It is a distributed messaging system.
  • D . It uses NETCONF based operations and YANG models.

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Correct Answer: D
D

Explanation:

The NSP Kafka service is a distributed messaging system that allows different applications to publish and subscribe to different event types. It provides an API client to receive event or alarm notifications and subscribe to different event types.

However, it does not use NETCONF based operations and YANG models. Instead, it uses the Kafka protocol to send and receive messages between producers and consumers.

Question #17

Which of the following allows the Intent Manger to communicate with network elements being managed by SNMP?

  • A . NSP mediator
  • B . MDC mediator
  • C . NFM-P mediator
  • D . Generic mediator

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Correct Answer: D
D

Explanation:

Intent Manager to communicate with network elements that are not directly supported by NSP12. A generic mediator can use SNMP or other protocols to interact with network elements.

Question #18

Which character is used to separate the attributes of a Target with multiple attributes?

  • A . –
  • B . /
  • C . #
  • D .

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Correct Answer: C
C

Explanation:

In a variety of programming and configuration contexts, different characters are used as separators to distinguish between different parts of a string or data structure. In particular, in some specific formats or markup languages, the # character may be used as a delimiter for attributes or values. However, the exact character used as a delimiter can vary depending on the application, programming language, or protocol. Without specific context, this answer is a best guess based on the options provided.

Note that the characters actually used to separate the target attributes may be different in different systems or languages. For example, in URLs, query parameters are usually separated by &, and in file paths, directories are usually separated by / or , depending on the operating system. Therefore, if the question is about a specific system or standard, please refer to the relevant documentation or specification.

Question #19

Convert the workflow full syntax to workflow simplified syntax.

my_task:

action: std.http

input:

url: http://mywebsite.org

method: GET

Which of the following is correct?

A) my_task:

action: std.http url=

"http://mywebsite.org"

B) my_task:

action: std.http url=

"http://mywebsite.org"

input:

method: GET

C) my_task:

action: url="http://mywebsite.org"

D) my_task:

action: std.http url=

"http://mywebsite.org" method="GET"

  • A . Option A
  • B . Option B
  • C . Option C
  • D . Option D

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Correct Answer: D
Question #20

Which of the following NSP CLI actions uses the network element’s NE ID to establish communication?

  • A . nsp.cli
  • B . nsp.sr_cli
  • C . nsp.mdm_di
  • D . nsp.netconf

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Correct Answer: D
D

Explanation:

The nsp.netconf action communicates with network elements via the NETCONF protocol. NETCONF is a network management protocol that allows the configuration, query, and control of the hardware and software of network devices. Using the NE ID of a network element is a standard way to establish communication with a particular network element via the NETCONF protocol.

Question #21

Which of the following statements about the NSP Workflow Manager (WFM) application is FALSE?

  • A . It allows network management tasks to be automated.
  • B . Only one workflow can be executed at one time.
  • C . Actions and expressions are extensible using Python.
  • D . A workflow action can run against RESTCONF APIs.

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Correct Answer: B
B

Explanation:

The NSP Workflow Manager (WFM) application allows network management tasks to be automated by creating workflows. Multiple workflows can be run in parallel, and actions and expressions are extensible using Python. Additionally, a workflow action can run against RESTCONF APIs.

According to the NSP Release 19.11 Workflow Manager Application Help1, Workflow Manager (WFM) is an application that allows network management tasks to be automated using Nokia NSP or third-party APIs1. WFM supports a variety of use cases such as node software upgrades, service activation tests, service fulfillment and mass migration of services12. WFM uses actions and expressions that are extensible using Python1. A workflow action can run against RESTCONF APIs as well as other protocols such as SNMP, NETCONF and CLI1.

Question #22

Which of the following HTTP methods are NOT supported in REST and RESTCONF?

  • A . GET
  • B . PUT
  • C . DELETE
  • D . ADD
  • E . PATCH

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Correct Answer: D
D

Explanation:

The HTTP methods that are supported by REST/RESTCONF are:

✑ GET: Used to retrieve a representation of a resource.

✑ PUT: Used to replace a resource or create it if it does not exist.

✑ DELETE: Used to delete a resource.

✑ PATCH: Used to apply a partial update to a resource.

The HTTP method ADD is not a standard HTTP method and is not supported by REST/RESTCONF.

Reference: Nokia NSP IP Network Automation Professional Guide, page 77.

Question #23

Which of the following files contains helper functions that can be leveraged by the scripts of many different Intent types?

  • A . Framework
  • B . Mapping script
  • C . Tern plate-mapping
  • D . Configuration template

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Correct Answer: A
A

Explanation:

The Framework file contains helper functions that can be leveraged by the scripts of many different Intent types.

The Framework file is a JavaScript file that provides common utility functions for Intent operations. It is located in the /opt/nokia/nsp/intent/scripts directory on the NSP server. It can be imported by other script files using the require() function. For example, a Framework file could contain:

function getNfmpTemplate(templateName) { // logic for getting an NFM-P template by name }

function getMdTemplate(templateName) { // logic for getting an MD template by name }

Question #24

Which of the following is NOT supported by the Workflow Manager out of the box?

  • A . REST/RESTCONF APIs
  • B . Optical integration using TL1
  • C . Shell command execution
  • D . CLI command execution on SROS and third party routers

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Correct Answer: B
B

Explanation:

TL1 (Transactional Language 1) is an older network management protocol that is primarily used for optical network devices. While some specific integrations may require support for TL1, this is typically not an out-of-the-box feature supported by Workflow Manager. TL1 integration may require specific plugins or custom development to implement.

Question #25

Which of the following is NOT a characteristic of Containers?

  • A . Predictable
  • B . Repeatable
  • C . Ever-changing
  • D . Self-contained

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Correct Answer: C
C

Explanation:

some of the characteristics of containers are:

✑ Resistant and strong

✑ Designed to facilitate transport of goods

✑ Easy for stuffing or destuffing

✑ Fitted with facilities for easy handling

✑ Airtight and water-resistant

✑ Predictable and repeatable

✑ Self-contained and isolated

Ever-changing is not a characteristic of containers. Containers are designed to be predictable, repeatable, and self-contained. They are isolated from the underlying infrastructure and provide a consistent environment for applications to run in, regardless of the host OS.

Question #26

Which of the following is NOT a benefit of ZTP?

  • A . Lowers overall time for network rollout
  • B . Increases network throughput
  • C . Optimizes costs
  • D . Minimizes the amount of commands typed

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Correct Answer: B
B

Explanation:

The option that is NOT a benefit of ZTP (Zero Touch Provisioning) is:

B. Increases network throughput.

ZTP is a network device deployment method that automates the initial configuration process of network devices, eliminating the need for manual intervention.

The benefits of ZTP include:

Question #27

Which of the following statements about POSTMAN is FALSE?

  • A . A Postman account allows you to create a maximum of 3600 workspaces for free.
  • B . Postman allows you to add a parameter to a request. 1mm
  • C . Postman allows you to define a variable to store and re-use values in a request.
  • D . Postman pre-request scripts are executed before the main request.

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Correct Answer: A
A

Explanation:

A Postman account allows you to create a maximum of 3600 workspaces for free. Postman is an API development environment used to create, test, and document APIs. It allows users to send requests and receive responses in a variety of formats, as well as add parameters to requests, define variables to store and re-use values, and execute pre-request scripts before the main request. However, Postman accounts do not allow users to create a maximum of 3600 workspaces for free; users must upgrade their accounts to access this feature.

Question #28

Which of the following commands allows the action associated with a task to be run multiple times over a list of items?

  • A . with-items
  • B . concurrency
  • C . retry
  • D . count

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Correct Answer: A
A

Explanation:

According to the Mistral Workflow Language (v2) documentation1, which is one of the technologies that can be used in a NSP workflow2, with-items is a task property that allows the action associated with a task to be run multiple times over a list of items1.

The syntax for using with-items is:

task_name:

action:<action_name>

input:

<input_name>:<%item()%>

with-items:itemin<list>

You need to replace <action_name>, <input_name>, and <list> with your desired values. You can also use other properties such as concurrency, retry, or count to control how many iterations are executed in parallel, how many times an iteration is retried if it fails, or how many times an iteration is executed respectively1.

Question #29

Which of the following statements about the NSP Workflow Manager is FALSE?

  • A . It provides several building tools to design and create new workflows.
  • B . It uses Openstack Heat as the core workflow engine.
  • C . It supports scheduling of workflow executions.
  • D . It supports parallel execution of many workflow.

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Correct Answer: B
B

Explanation:

According to the Nokia NSP Workflow Manager Application Help2, Workflow Manager has the following characteristics:

✑ It provides several building tools to design and create new workflows. You can use graphical editors, text editors, or import existing workflows from files or repositories.

✑ It uses Openstack Mistral as the core workflow engine. Mistral is an open source project that provides a service for managing workflows across multiple cloud platforms.

✑ It supports scheduling of workflow executions. You can use cron expressions or triggers to specify when and how often a workflow should run.

✑ It supports parallel execution of many workflows. You can run multiple workflows simultaneously on different network elements or services.

Therefore, based on these sources, the correct answer is:

B. It uses Openstack Heat as the core workflow engine.

This is FALSE because Workflow Manager uses Openstack Mistral, not Heat, as the core workflow engine. Heat is another open source project that provides a service for orchestrating multiple cloud applications using templates.

The other statements are TRUE because:

Question #30

Which of the following statements about the Nokia NSP is FALSE?

  • A . It is the Source of Truth.
  • B . It uses NETCONF and YANG to provision the network.
  • C . It can act as a Path Computation Element (PCE).
  • D . It only manages Nokia equipment.

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Correct Answer: D
D

Explanation:

The Nokia NSP is an IP network automation platform that provides a unified view of the network and enables end-to-end automation of IP networks. It is designed to be vendor-agnostic and can manage a wide range of equipment from various vendors, making it the Source of Truth for the entire network. It uses NETCONF and YANG to provision the network and can act as a Path Computation Element (PCE).

Nokia NSP is a network automation platform that supports multi-vendor network infrastructure. It acts as the "Source of Truth" for the network, uses NETCONF and YANG to provision the network, and can act as a Path Computation Element (PCE) to optimize traffic flow across the network. It supports a wide range of network devices, including those from third-party vendors, making it a flexible and vendor-agnostic solution for network automation.

some of the statements about the Nokia NSP are:

✑ It is a platform that provides service automation and network optimization across multiple network layers and domains.

✑ It uses NETCONF and YANG to provision the network and supports various protocols such as BGP-LS, PCEP, SNMP, etc.

✑ It can act as a Path Computation Element (PCE) and provide end-to-end path computation for traffic engineering applications.

✑ It can manage equipment from multiple vendors and supports open interfaces and standards.

http://nsp.developer.nokia.com/

https://www.nokia.com/networks/training/nsp/

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