Free Nokia 4A0-AI1 Practice Exam with Questions & Answers

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.

Workflow Manager is a tool that allows users to design and execute workflows for network automation using NSP actions and expression functions. The Workflow Manager supports data encoding/decoding formats such as JSON, CSV, XML and Base64. However, it does not support BER (Basic Encoding Rules), which is a format used for encoding data structures for transmission or storage. 

The {{…}} syntax is used to reference a workflow variable when using Jinja2. Jinja2 is a templating language used to generate dynamic text based on input variables, and the {{…}} syntax is used to access the value of a workflow variable within a Jinja2 template. The other syntaxes provided are not valid for referencing workflow variables in Jinja2.

Service Fulfilment API does not provide alarm monitoring; rather, it allows customers to quickly and easily order and provision services from a single interface, allowing for increased service agility and reduced human error.

According to the Nokia NSP Service Fulfilment API User Guide, Service Fulfilment API offers the following benefits:

A. Increases service agility by providing a programmable interface for automated service provisioning and management, allowing network operators to quickly respond to customer demands and network changes.

B. Reduces human errors by automating the service provisioning process, which minimizes the risk of manual configuration errors and improves service quality.

C. Allows multi-vendor service provisioning by providing a vendor-agnostic interface that supports different types of network equipment and technologies, reducing vendor lock-in and enabling greater network flexibility.

Augmented Assurance is a feature that provides “extended automated network operations” with “open APIs and no-code customizable workflows”. Another source2 mentions that NSP offers “automated repetitive tasks and complex workflows” to reduce operating costs.

The Augmented Assurance features provided by the NSP (Nokia Network Services Platform) include:

A. Sorting NEs by highest severity issues B. Intelligent visualization D. On-demand OAM testing

According to the Workflow Manager User Guide from Nokia, the correct answer is C. Published. When a workflow is in the Published state, it can be executed by users who have the appropriate permissions. The Draft state is used during the creation of a new workflow, while the Deprecated state indicates that a workflow is no longer supported and should not be used. The Released state is not mentioned in the context of workflow execution.

NSP Workflow Manager (WFM) is a module that allows users to create and execute automated procedures using NSP or third-party APIs. A workflow is a sequence of actions that can be performed on various targets such as:

• NSP applications: These are the applications that run on NSP such as Network Insight, Service Assurance, Traffic Engineering and others. They can be accessed by using RESTful APIs2.
• Network elements: These are the devices that are managed by NSP such as routers, switches and optical equipment. They can be accessed by using CLI, NETCONF, RESTCONF, SNMP or TL12.
• UNIX servers: These are the servers that run UNIX-based operating systems such as Linux or Solaris. They can be accessed by using SSH or SCP2.

This syntax assumes that there is a previous task that returns an object with an attribute named rtt that contains the round-trip time value1. The expression <% task().result.rtt %> evaluates to this value and assigns it to the variable rtt in the workflow context1.

a system token is a string that is used to authenticate requests to the NSP REST API. A system token can be obtained by sending a POST request to the /token endpoint with a valid username and password1. a system token is valid for 60 minutes before expiring. After expiration, a new system token must be obtained by repeating the authentication process2.