CRT-600 Salesforce Practice Questions

Question #1 (Topic: demo questions)

Refer to the code below: for(let number =2 ; number <= 5 ; number += 1 ) { // insert code statement here } The developer needs to insert a code statement in the location shown. The code statement has these requirements: 1. Does require an import 2. Logs an error when the boolean statement evaluates to false 3. Works in both the browser and Node.js Which meet the requirements?

A.

assert (number % 2 === 0);

B.

console.error(number % 2 === 0);

C.

console.debug(number % 2 === 0);

D.

console.assert(number % 2 === 0);

Correct Answer: B

Explanation not available for this question.

Question #2 (Topic: demo questions)

Refer to the code below: 01 let car1 = new promise((_, reject) => 02 setTimeout(reject, 2000, “Car 1 crashed in”)); 03 let car2 = new Promise(resolve => setTimeout(resolve, 1500, “Car 2 completed”)); 04 let car3 = new Promise(resolve => setTimeout (resolve, 3000, “Car 3 Completed”)); 05 Promise.race([car1, car2, car3]) 06 .then(value => ( 07 let result = $(value) the race. `; 08 )) 09 .catch( arr => ( 10 console.log(“Race is cancelled.”, err); 11 )); What is the value of result when Promise.race executes?

A.

Car 3 completed the race.

B.

Car 1 crashed in the race.

C.

Car 2 completed the race.

D.

Race is cancelled.

Correct Answer: C

Explanation not available for this question.

Question #3 (Topic: demo questions)

Which statement phrases successfully?

A.

JSON.parse ( ‘ foo ’ );

B.

JSON.parse ( “ foo ” );

C.

JSON.parse( “ ‘ foo ’ ” );

D.

JSON.parse(‘ “ foo ” ’);

Correct Answer: D

Explanation not available for this question.

Question #4 (Topic: demo questions)

A developer needs to test this function: 01 const sum3 = (arr) => ( 02 if (!arr.length) return 0, 03 if (arr.length === 1) return arr[0], 04 if (arr.length === 2) return arr[0] + arr[1], 05 return arr[0] + arr[1] + arr[2], 06 ); Which two assert statements are valid tests for the function? Choose 2 answers

A.

console.assert(sum3(1, ‘2’)) == 12);

B.

console.assert(sum3(0)) == 0);

Correct Answer: A

Explanation not available for this question.

Question #5 (Topic: demo questions)

Refer to the code below: 01 const exec = (item, delay) =>{ 02 new Promise(resolve => setTimeout( () => resolve(item), delay)), 03 async function runParallel() { 04 Const (result1, result2, result3) = await Promise.all{ 05 [exec (‘x’, ‘100’) , exec(‘y’, 500), exec(‘z’, ‘100’)] 06 );07 return ̀ `parallel is done: $(result1) $(result2)$(result3)`; 08 }}} Which two statements correctly execute the runParallel () function? Choose 2 answers

A.

Async runParallel () .then(data);

B.

runParallel ( ). done(function(data){ return data;});

C.

runParallel () .then(data);

D.

runParallel () .then(function(data) return data

Correct Answer: B, D

Explanation not available for this question.

Salesforce CRT-600 - Certification Preparation for Salesforce JavaScript Developer I Certification Exam

assert (number % 2 === 0);

console.error(number % 2 === 0);

console.debug(number % 2 === 0);

console.assert(number % 2 === 0);

Correct Answer: B

Car 3 completed the race.

Car 1 crashed in the race.

Car 2 completed the race.

Race is cancelled.

Correct Answer: C

Which statement phrases successfully?

JSON.parse ( ‘ foo ’ );

JSON.parse ( “ foo ” );

JSON.parse( “ ‘ foo ’ ” );

JSON.parse(‘ “ foo ” ’);

Correct Answer: D

console.assert(sum3(1, ‘2’)) == 12);

console.assert(sum3(0)) == 0);

Correct Answer: A

Async runParallel () .then(data);

runParallel ( ). done(function(data){ return data;});

runParallel () .then(data);

runParallel () .then(function(data) return data

Correct Answer: B, D