Why you should use JavaScript, NodeJS & SQL Online Test?

The JavaScript, NodeJS & SQL Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects: Forstå og implementere grunnleggende JavaScript -syntaks Bruke JavaScript ES6 -funksjoner effektivt Opprette og manipulere objekter ved hjelp av JavaScript Oops -konsepter Arbeide med APIer for å hente og behandle data Håndtering av asynkrone operasjoner i Node.js ved hjelp av løfter Forstå og bruke Node.js -modulsystemet Forstå forespørsels-respons-livssyklusen i Node.js Utføre CRUD -operasjoner i SQL ved hjelp av JavaScript Bruk av SQL blir med og indekserer effektivt Bruke JavaScript -programmeringskonsepter for å løse problemer

JavaScript, NodeJS & SQL Online Test

Q: What topics are covered in the JavaScript, NodeJS & SQL Online Test?

JavaScript Basics JS ES6 JS Oops Håndtering av API -er Asynkron node.js og lover Node.js modulsystem Be om svar på svaret SQL CRUD -operasjoner SQL blir med og indekser JavaScript -programmering

About the test:

JavaScript, NodeJS & SQL Test bruker scenariobaserte MCQ-er for å evaluere kandidater om sin dyktighet i JavaScript-programmeringsspråk, NodeJS Runtime Environment og SQL Database. Testen vurderer kandidatenes forståelse av emner som hendelsesdrevet programmering, asynkron programmering, mellomvare, databaseforbindelser, SQL-spørsmål og databasedesignprinsipper. Kandidatene blir evaluert på deres evne til å bruke JavaScript og NodeJS for å utvikle applikasjoner på serversiden, samhandle med databaser, designdatabaseskjemaer og skrive optimaliserte og sikre SQL-spørsmål for datamanipulering og gjenfinning.

Covered skills:

JavaScript Basics
JS Oops
Asynkron node.js og lover
Be om svar på svaret
SQL blir med og indekser

JS ES6
Håndtering av API -er
Node.js modulsystem
SQL CRUD -operasjoner
JavaScript -programmering

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9 reasons why

Adaface JavaScript, NodeJS & SQL Test is the most accurate way to shortlist Full Stack Developers

Reason #1

Tests for on-the-job skills

The JavaScript, NodeJS & SQL Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

Dyktig i JavaScript Basics
Sterk forståelse av JS ES6 -konsepter
Evne til å anvende JavaScript oops -prinsipper
Erfaring med å håndtere APIer i JavaScript
Kjennskap til asynkron programmering i node.js og løfter
Dyp kunnskap om Node.js -modulsystemet
Forståelse av forespørselsens livssyklus i node.js
Kompetanse i SQL CRUD -operasjoner
Ferdighet i SQL blir med og indekser
Sterke JavaScript -programmeringsferdigheter
Effektiv feil og unntakshåndtering
Erfaring med Git -versjonskontroll

Reason #2

No trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface

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Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

Dette er bare en liten prøve fra biblioteket vårt med 10.000+ spørsmål. De faktiske spørsmålene om dette JavaScript, NodeJS & SQL Test vil være ikke-googlable.

🧐 Question
Medium Async Await Promises Promises Async-Await	Try practice test
What will the following code output? A: 24 after 5 seconds and after another 5 seconds, another 24 B: 24 followed by another 24 immediately C: 24 immediately and another 24 after 5 seconds D: After 5 seconds, 24 and 24 E: Undefined F: NaN G: None of these
Medium Bitcoin prices Axios Promises	Try practice test
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
Medium My Module Scope	Try practice test
What will the output of the following JavaScript code be?
Medium Promise Resolve Promises Async-Await	Try practice test
What does the following code output?
Easy Throw, Try, Async Promises Async-Await	Try practice test
What does the following JS code output?
Medium I/O cycle and main module Event Loop	Try practice test
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
Easy Res methods	Try practice test
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
Medium Phases and Timers Event Loop	Try practice test
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
Medium Multi Select JOIN GROUP BY	Try practice test
Consider the following SQL table: How many rows does the following SQL query return?
Medium nth highest sales Nested queries User Defined Functions	Try practice test
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
Medium Select & IN Nested queries	Try practice test
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
Medium Sorting Ubers Nested queries Join Comparison operators	Try practice test
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
Hard With, AVG & SUM MAX() MIN() Aggregate functions	Try practice test
Consider the following SQL table: How many tuples does the following query return?
Easy Registration Queue Logic Queues	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
Medium Visitors Count Strings Logic	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill
	Medium Async Await Promises Promises Async-Await	2 mins JavaScript	Try practice test
What will the following code output? A: 24 after 5 seconds and after another 5 seconds, another 24 B: 24 followed by another 24 immediately C: 24 immediately and another 24 after 5 seconds D: After 5 seconds, 24 and 24 E: Undefined F: NaN G: None of these
	Medium Bitcoin prices Axios Promises	2 mins JavaScript	Try practice test
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
	Medium My Module Scope	2 mins JavaScript	Try practice test
What will the output of the following JavaScript code be?
	Medium Promise Resolve Promises Async-Await	2 mins JavaScript	Try practice test
What does the following code output?
	Easy Throw, Try, Async Promises Async-Await	2 mins JavaScript	Try practice test
What does the following JS code output?
	Medium I/O cycle and main module Event Loop	2 mins NodeJS	Try practice test
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
	Easy Res methods	3 mins NodeJS	Try practice test
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
	Medium Phases and Timers Event Loop	2 mins NodeJS	Try practice test
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
	Medium Multi Select JOIN GROUP BY	2 mins SQL	Try practice test
Consider the following SQL table: How many rows does the following SQL query return?
	Medium nth highest sales Nested queries User Defined Functions	3 mins SQL	Try practice test
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
	Medium Select & IN Nested queries	3 mins SQL	Try practice test
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	Medium Sorting Ubers Nested queries Join Comparison operators	3 mins SQL	Try practice test
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
	Hard With, AVG & SUM MAX() MIN() Aggregate functions	2 mins SQL	Try practice test
Consider the following SQL table: How many tuples does the following query return?
	Easy Registration Queue Logic Queues	30 mins Coding	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Medium Visitors Count Strings Logic	30 mins Coding	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Async Await Promises Promises Async-Await	JavaScript	Medium	2 mins	Try practice test
What will the following code output? A: 24 after 5 seconds and after another 5 seconds, another 24 B: 24 followed by another 24 immediately C: 24 immediately and another 24 after 5 seconds D: After 5 seconds, 24 and 24 E: Undefined F: NaN G: None of these
	Bitcoin prices Axios Promises	JavaScript	Medium	2 mins	Try practice test
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
	My Module Scope	JavaScript	Medium	2 mins	Try practice test
What will the output of the following JavaScript code be?
	Promise Resolve Promises Async-Await	JavaScript	Medium	2 mins	Try practice test
What does the following code output?
	Throw, Try, Async Promises Async-Await	JavaScript	Easy	2 mins	Try practice test
What does the following JS code output?
	I/O cycle and main module Event Loop	NodeJS	Medium	2 mins	Try practice test
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
	Res methods	NodeJS	Easy	3 mins	Try practice test
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
	Phases and Timers Event Loop	NodeJS	Medium	2 mins	Try practice test
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
	Multi Select JOIN GROUP BY	SQL	Medium	2 mins	Try practice test
Consider the following SQL table: How many rows does the following SQL query return?
	nth highest sales Nested queries User Defined Functions	SQL	Medium	3 mins	Try practice test
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
	Select & IN Nested queries	SQL	Medium	3 mins	Try practice test
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	Sorting Ubers Nested queries Join Comparison operators	SQL	Medium	3 mins	Try practice test
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
	With, AVG & SUM MAX() MIN() Aggregate functions	SQL	Hard	2 mins	Try practice test
Consider the following SQL table: How many tuples does the following query return?
	Registration Queue Logic Queues	Coding	Easy	30 mins	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Visitors Count Strings Logic	Coding	Medium	30 mins	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

Reason #4

1200+ customers in 75 countries

Med Adaface var vi i stand til å optimalisere den første screeningsprosessen vår med oppover 75 %, og frigjorde dyrebar tid for både ansettelsesledere og vårt talentanskaffelsesteam!

Brandon Lee, Leder for mennesker, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment JavaScript, NodeJS & SQL Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the JavaScript, NodeJS & SQL Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

Reason #7

Detailed scorecards & benchmarks

Vis eksempler på scorecard

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Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

Reason #9

Advanced Proctoring

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About the JavaScript, NodeJS & SQL Assessment Test

Why you should use Pre-employment JavaScript, NodeJS & SQL Online Test?

The JavaScript, NodeJS & SQL Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

Forstå og implementere grunnleggende JavaScript -syntaks
Bruke JavaScript ES6 -funksjoner effektivt
Opprette og manipulere objekter ved hjelp av JavaScript Oops -konsepter
Arbeide med APIer for å hente og behandle data
Håndtering av asynkrone operasjoner i Node.js ved hjelp av løfter
Forstå og bruke Node.js -modulsystemet
Forstå forespørsels-respons-livssyklusen i Node.js
Utføre CRUD -operasjoner i SQL ved hjelp av JavaScript
Bruk av SQL blir med og indekserer effektivt
Bruke JavaScript -programmeringskonsepter for å løse problemer

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the JavaScript, NodeJS & SQL Online Test?

JS Es6
JS ES6 fokuserer på de nye funksjonene og forbedringer introdusert i ECMASCRIPT 6, den siste versjonen av JavaScript. Det inkluderer konsepter som pilfunksjoner, mallitteraler, ødeleggelse, klasser, moduler og løfter. Denne ferdigheten måles i testen for å evaluere kandidatens kjennskap til moderne JavaScript-språkfunksjoner og deres evne til å skrive effektiv og vedlikeholdbar kode.
JS Oops
JS Oops (objektorientert programmering ) innebærer å organisere kode i gjenbrukbare objekter og bruke arv, innkapsling og polymorfisme. Det gir mulighet for bedre kodeorganisasjon, modularitet og gjenbrukbarhet. Denne ferdigheten måles i testen for å vurdere kandidatens ferdigheter i å skrive objektorientert JavaScript-kode og deres forståelse av OOP-prinsipper.
Håndtering av API-er
Håndtering av APIer innebærer å hente data fra ekstern nett APIer og integrerer det i JavaScript -applikasjoner. Det krever kunnskap om HTTP -forespørsler, JSON -analysering og håndtering av asynkrone operasjoner. Denne ferdigheten måles i testen for å evaluere kandidatens evne til å jobbe med Web API -er og konsumere eksterne data i JavaScript -applikasjoner.
asynkron node.js og løfter
asynkron node.js og Løfter fokuserer på den asynkrone naturen til node.js og bruk av løfter for håndtering av asynkrone operasjoner. Det inkluderer konsepter som tilbakeringinger, hendelsesdrevet programmering, async/avventer og feilhåndtering. Denne ferdigheten måles i testen for å vurdere kandidatens forståelse av asynkron programmering i Node.js og deres evne til å skrive effektiv og skalerbar asynkron kode.
node.js modulsystem
Node .JS -modulsystemet dekker organisasjonen og gjenbrukbare moduler i Node.js -applikasjoner. Det inkluderer konsepter som import og eksport av moduler, ved hjelp av kjernemoduler, tilpasset moduloppretting og moduloppløsning. Denne ferdigheten måles i testen for å evaluere kandidatens kjennskap til modulsystemet i Node.js og deres evne til å lage og bruke moduler effektivt i Node.js -prosjekter.
Be om svar livssyklus </h4> < P> Request Response Lifecycle innebærer å forstå hvordan klient-server-kommunikasjon fungerer i sammenheng med webapplikasjoner. Det inkluderer konsepter som HTTP -metoder, forespørselsoverskrifter, rutehåndtering, mellomvare og responshåndtering. Denne ferdigheten måles i testen for å vurdere kandidatens forståelse av forespørselsresponsen i webapplikasjoner og deres evne til å håndtere HTTP-forespørsler og svar effektivt. </p> <h4> SQL CRUD-operasjoner
SQL CRUD -operasjoner refererer til Create, Read, Update og Slett operasjoner utført i databasen ved hjelp av Structured Query Language (SQL). Det inkluderer konsepter som å sette inn data, spørre data, oppdatere data og slette data fra relasjonsdatabaser. Denne ferdigheten måles i testen for å evaluere kandidatens dyktighet i SQL og deres evne til å utføre grunnleggende databaseoperasjoner ved bruk Relasjonsdatabaser og forstå hvordan du blir med i tabeller og optimaliserer databaseytelsen ved hjelp av indekser. Det inkluderer konsepter som indre sammenføyning, ytre sammenføyning, kryssforbindelse, primærnøkler, utenlandske nøkler og indeksoppretting. Denne ferdigheten måles i testen for å vurdere kandidatens evne til å skrive komplekse spørsmål som involverer sammenføyninger og deres kunnskap om å optimalisere databasespørsmål ved bruk av kandidater til å skrive rene, effektive og godt strukturerte JavaScript-kode. Den vurderer deres kunnskap om beste praksis, kodingskonvensjoner, feilhåndtering, kodeytelse og feilsøkingsevner. Denne ferdigheten måles i testen for å evaluere kandidatens generelle ferdigheter i JavaScript -programmering og deres evne til å løse programmeringsproblemer ved hjelp av JavaScript.
Full list of covered topics
The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for JavaScript, NodeJS & SQL Test to be based on.
Datatyper
Operatører
Funksjoner
Matriser
Objekter
Strenger
Betingelser
Løkker
Stenginger
Prototyper
Pilfunksjoner
Ødeleggelse
Hvile/spredt operatør
Løfter
Async/avventer
Moduler
Hendelsesdrevet programmering
Buffere og bekker
Filsystem
HTTP -modul
Express Framework
Feilhåndtering mellomvare
Ruting
CRUD -operasjoner med SQL
Datamanipulasjonsspråk
Datadefinisjonsspråk
Transaksjoner
Indekser
Blir med
Normalisering
Samlede funksjoner
Indre sammenføyning
Venstre bli med
Høyre bli med
Full ytre sammenføyning
Tilbakeringinger
Feilhåndtering
Avvikshåndtering
Feilsøking
Testing
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What roles can I use the JavaScript, NodeJS & SQL Online Test for?

Full Stack Developer
JavaScript -utvikler
Node.js utvikler
SQL -utvikler

How is the JavaScript, NodeJS & SQL Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

Implementering av JavaScript -datastrukturer og algoritmer
Optimalisering av JavaScript -kode for ytelse
Opprette og vedlikeholde avslappende APIer i Node.js
Implementering av godkjenning og autorisasjon i Node.js -applikasjoner
Forstå og jobbe med NoSQL -databaser i Node.js
Bruke JavaScript -rammer og biblioteker (f.eks. Express, React) for å utvikle webapplikasjoner
Implementering av testdrevet utvikling (TDD) og skriveenhetstester for JavaScript-kode
Feilsøking og feilsøking av JavaScript -applikasjoner
Bruke hurtigbufringsmekanismer og optimalisere databasespørsmål i node.js
Implementering av server-side gjengivelse (SSR) ved hjelp av Node.js-rammer

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

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Vis eksempler på scorecard

Ansettelseslederne mente at de gjennom de tekniske spørsmålene de stilte under panelintervjuene, var i stand til å fortelle hvilke kandidater som scoret bedre, og differensierte med de som ikke skåret like godt. De er svært fornøyd med kvaliteten på kandidatene som er på listen med Adaface-screeningen.

85%

Reduksjon i screeningstid

Se hele casestudien

JavaScript, NodeJS & SQL Hiring Test Vanlige spørsmål

Kan jeg kombinere flere ferdigheter til en tilpasset vurdering?

Ja absolutt. Tilpassede vurderinger er satt opp basert på stillingsbeskrivelsen din, og vil inneholde spørsmål om alle må-ha ferdigheter du spesifiserer.

Har du noen anti-juksende eller proktoreringsfunksjoner på plass?

Vi har følgende anti-juksede funksjoner på plass:

Ikke-googlable spørsmål
IP Proctoring
Nettproctoring
Webcam Proctoring
Deteksjon av plagiering
Sikker nettleser

Les mer om Proctoring -funksjonene.

Hvordan tolker jeg testresultater?

Den viktigste tingen å huske på er at en vurdering er et eliminasjonsverktøy, ikke et seleksjonsverktøy. En ferdighetsvurdering er optimalisert for å hjelpe deg med å eliminere kandidater som ikke er teknisk kvalifisert for rollen, det er ikke optimalisert for å hjelpe deg med å finne den beste kandidaten for rollen. Så den ideelle måten å bruke en vurdering på er å bestemme en terskelpoeng (vanligvis 55%, vi hjelper deg med å benchmark) og invitere alle kandidater som scorer over terskelen for de neste rundene med intervjuet.

Hvilken opplevelsesnivå kan jeg bruke denne testen til?

Hver ADAFACE -vurdering er tilpasset din stillingsbeskrivelse/ ideell kandidatperson (våre fageksperter vil velge de riktige spørsmålene for din vurdering fra vårt bibliotek med 10000+ spørsmål). Denne vurderingen kan tilpasses for ethvert opplevelsesnivå.

Får hver kandidat de samme spørsmålene?

Ja, det gjør det mye lettere for deg å sammenligne kandidater. Alternativer for MCQ -spørsmål og rekkefølgen på spørsmål er randomisert. Vi har anti-juksing/proctoring funksjoner på plass. I vår bedriftsplan har vi også muligheten til å lage flere versjoner av den samme vurderingen med spørsmål med lignende vanskelighetsnivåer.