Given the JavaSript below:

Which code should replace the placeholder comment on line 05 to hide accounts that do not match the search string?

• A.'hidden'; 'visible'
• B.'Block' ; 'none'
• C.'Visible' ; hidden'
• D.none' ; 'block '

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A developer wants to set up a secure web server with Node.js. The developer create a directory locally called app-server, and the first file is app-server/index, js.
Without using any third-party libraries, what should the developer add to index, js to create the secure web server?

• A.Const server = require ( 'secure-server') ;
• B.Const http = require ('https') ;
• C.Const http = require ('http');
• D.Const tls = require ('tls') ;

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A developer is creating a simple webpage with a button. When a user clicks this button
for the first time, a message is displayed.
The developer wrote the JavaScript code below, but something is missing. The
message gets displayed every time a user clicks the button, instead of just the first time.
01 function listen(event) {
02 alert ( 'Hey! I am John Doe') ;
03 button.addEventListener ('click', listen);
Which two code lines make this code work as required?
Choose 2 answers

• A.On line 04, use event.stopPropagation ( ),
• B.On line 06, add an option called once to button.addEventListener().
• C.On line 02, use event.first to test if it is the first execution.
• D.On line 04, use button.removeEventListener(' click" , listen);

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A developer creates a generic function to log custom messages in the console. To do this, the function below is implemented.
01 function logStatus(status){
02 console./*Answer goes here*/{'Item status is: %s', status};
03 }
Which three console logging methods allow the use of string substitution in line 02?

• A.Log
• B.Message
• C.Error
• D.Info
• E.Assert

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

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