A test has a dependency on database .query. During the test the dependency is replace with an called database with the method, query, that returns an array. The developer needs to verify how many times the method was called and the arguments used each time.
Which two test approaches describe the requirement?

• A.Black box
• B.Integration
• C.Mocking
• D.White box

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Universal Container (UC) notices that its application allows users to search for account makes a network request each time a key is pressed. This results in too many request for the server to handle.
O address this problem, UC decides to implement a deboune function on the search string change handler. Choose 3 answers

• A.If there is an existing settimeout and the search string changes, allow the existing setTimeout to finish, and do not enqueue a settimeout.
• B.If the there is an existing setTimeout and the search string changes, cancel the existing setTimeout using the persisted timeout replace it with a new setTimeout.
• C.Ensure that the network request has the property debounce set to true,
• D.When the search string changes, enqueue the request within a setTimeout.
• E.Store the timeId of the setTimeout last enqueued by the search string change handler.

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Refer to the code below:

What is the result of running line 05?

• A.Neither aPromise or bPromise runs.
• B.aPromise and bPromise run sequentially.
• C.Apromise and bpromise run in parallel.
• D.Only apromise runs.

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A developer wants to iterate through an array of objects and count the objects and count
the objects whose property value, name, starts with the letter N.
Const arrObj = [{"name" : "Zach"} , {"name" : "Kate"},{"name" : "Alise"},{"name" : "Bob"},{"name" :
"Natham"},{"name" : "nathaniel"}
Refer to the code snippet below:
01 arrObj.reduce(( acc, curr) => {
02 //missing line 02
02 //missing line 03
04 ). 0);
Which missing lines 02 and 03 return the correct count?

• A.Const sum = curr.name.startsWith('N') ? 1: 0;
  Return acc +sum
• B.Const sum = curr.startsWith('N') ? 1: 0;
  Return acc +sum
• C.Const sum = curr.startsWIth('N') ? 1: 0;
  Return curr+ sum
• D.Const sum = curr.name.startsWIth('N') ? 1: 0;
  Return curr+ sum

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A developer is debugging a web server that uses Node.js The server hits a runtimeerror every third request to an important endpoint on the web server.
The developer added a break point to the start script, that is at index.js at he root of the server's source code. The developer wants to make use of chrome DevTools to debug.
Which command can be run to access DevTools and make sure the breakdown is hit ?

• A.Node --inspect index.js
• B.node -i index.js
• C.Node inspect index.js
• D.Node --inspect-brk index.js

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