Refer to the code below:

What is the value of result when the code executes?

• A.10 - 5
• B.5 - 5
• C.10 - 10
• D.5 - 10

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developer is trying to convince management that their team will benefit from using
Node.js for a backend server that they are going to create. The server will be a web server that
handles API requests from a website that the team has already built using HTML, CSS, and
JavaScript.
Which three benefits of Node.js can the developer use to persuade their manager?
Choose 3 answers:

• A.I nstalls with its own package manager to install and manage third-party libraries.
• B.Performs a static analysis on code before execution to look for runtime errors.
• C.Executes server-side JavaScript code to avoid learning a new language.
• D.User non blocking functionality for performant request handling .
• E.Ensures stability with one major release every few years.

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A developer is required to write a function that calculates the sum of elements in an
array but is getting undefined every time the code is executed. The developer needs to find
what is missing in the code below.
Const sumFunction = arr => {
Return arr.reduce((result, current) => {
//
Result += current;
//
), 10);
);
Which option makes the code work as expected?

• A.Replace line 03 with if(arr.length == 0 ) ( return 0; )
• B.Replace line 02 with return arr.map(( result, current) => (
• C.Replace line 05 with return result;
• D.Replace line 04 with result = result +current;

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Refer to the code below:

A developer import a library that creates a web server. the imported library uses events and callback to start the server.
Which code should be inserted at line 03 to set up an event and start the web server?

• A.Server. on ('connet' , (port) => (
  Console.log (Listening on' port);
  }};
• B.server( );
• C.server ( (port) => (
  Console.log ('Listening on' , port) ;
  }};
• D.Server .start();

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Refer to the following code:

What is returned by the function call on line 13?

• A.Line 13 throws an error.
• B.Undefined
• C.Null value
• D.Undefined value.

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