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About the test:

The JavaScript, HTML/CSS, Java & SQL Test uses scenario-based MCQs to evaluate candidates on their proficiency in JavaScript programming language, front-end web development using HTML/CSS markup, Java programming language for back-end development, and SQL database management. The test assesses candidates' understanding of topics such as object-oriented programming, server-side scripting, database connections, SQL queries, and database design principles.

Covered skills:

  • JavaScript Fundamentals
  • Async/ Await in JS
  • DOM Handling with JS
  • Java OOPs
  • SQL Joins and Indexes
  • ES6 Syntax
  • HTML/ CSS Basics
  • Java Syntax
  • SQL CRUD operations
  • Coding

9 reasons why
9 reasons why

Adaface JavaScript, HTML/CSS, Java & SQL Test is the most accurate way to shortlist Full Stack Developers



Reason #1

Tests for on-the-job skills

The JavaScript, HTML/CSS, Java & 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:

  • Ability to write clean and efficient JavaScript code
  • Proficiency in ES6 syntax and features
  • Understanding of asynchronous programming and the use of async/await in JavaScript
  • Knowledge of HTML and CSS basics
  • Capability to manipulate and interact with the DOM using JavaScript
  • Familiarity with Java syntax and concepts
  • Understanding of object-oriented programming principles in Java
  • Proficiency in performing CRUD operations in SQL
  • Ability to work with SQL joins and indexes
  • Competence in solving coding problems
Reason #2

No trick questions

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
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

These are just a small sample from our library of 10,000+ questions. The actual questions on this JavaScript, HTML/CSS, Java & SQL Test will be non-googleable.

๐Ÿง Question

Medium

Async Await Promises
Promises
Async-Await
Solve
What will the following code output?
 image
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
Solve
Review the following JavaScript code and pick the correct options: 
 image
Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of โ€˜aโ€™ be after the code is executed?

Medium

My Module
Scope
Solve
What will the output of the following JavaScript code be?
 image
 image

Medium

Promise Resolve
Promises
Async-Await
Solve
What does the following code output? 
 image

Easy

Throw, Try, Async
Promises
Async-Await
Solve
What does the following JS code output?
 image

Easy

Background Properties
Solve
Consider the following shorthand CSS example:

background: #f7f7f7 url(jolie.jpg) no-repeat scroll 0px 0px;

Which of the following show the individual background properties represented by the shorthand:
 image

Easy

Colorful sentences
Solve
Our intern is writing a colorful blog post, and has written the following code. What colors will the sentences be?
 image
A: Sentence 1 will be gray, Sentence 2 will be pink.
B: Both sentences will be gray.
C: Sentence 1 will be pink, Sentence 2 will be gray.
D: Both sentences will be pink.
E: The code does not make sense; will throw an error.

Easy

Links
Solve
In the following HTML, what will be the color of link with class "mark"
 image

Medium

Let's Hack
CSS Property
Solve
Consider the following HTML and CSS:
 image
 image
Which additional CSS rule(s) will render the following image? Choose ALL that apply.
 image
A:
div{
  flex-direction : column;
  align-items : center;
}
B:
div{
  flex-direction : row;
  align-items: center;
}
C:
div{
  flex-direction: column;
  justify-content: center;
}
D:
div{
  flex-direction: row;
  justify-content: center;
}

Easy

Custom Exception
Exception Handling
Custom Exceptions
Solve
What does the following code output?
 image

Hard

Holding References
Solve
What does the following Java code output?
 image

Medium

Abstract Interface
OOPs
Interfaces
Solve
Given following interface:
 image
Which of these are correct classes?
 image

Medium

Garbage Collection
Garbage Collection
Solve
After which line is "bs" object, created on Line 4, eligible for garbage collection?
 image

Hard

Static Init Blocks
OOPs
Solve
What does the following code output?
 image
1) G A B E D H
2) G B A D E H
3) G B A D E H C F
4) C F G A B E D H
5) C F G B A D E H
6) G C F A B E D H
7) G C F B A D E H

Medium

Multi Select
JOIN
GROUP BY
Solve
Consider the following SQL table:
 image
How many rows does the following SQL query return?
 image

Medium

nth highest sales
Nested queries
User Defined Functions
Solve
Consider the following SQL table:
 image
Which of the following SQL commands will find the โ€˜nth highest Salesโ€™ if it exists (returns null otherwise)?
 image

Medium

Select & IN
Nested queries
Solve
Consider the following SQL table:
 image
Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
 image

Medium

Sorting Ubers
Nested queries
Join
Comparison operators
Solve
Consider the following SQL table:
 image
What will be the first two tuples resulting from the following SQL command?
 image

Hard

With, AVG & SUM
MAX() MIN()
Aggregate functions
Solve
Consider the following SQL table:
 image
How many tuples does the following query return?
 image

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.
โš ๏ธโš ๏ธโš ๏ธ 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: 
โ€˜Wโ€™ has the highest count, then โ€˜Cโ€™, then โ€˜Mโ€™. 
โš ๏ธโš ๏ธโš ๏ธ 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- โ€œMMWโ€, then the expected output is "2M1W" since there is no โ€˜Cโ€™.
- If any of them have the same count, the output should follow this order - M, W, C.
๐Ÿง Question๐Ÿ”ง Skill

Medium

Async Await Promises
Promises
Async-Await

2 mins

JavaScript
Solve

Medium

Bitcoin prices
Axios
Promises

2 mins

JavaScript
Solve

Medium

My Module
Scope

2 mins

JavaScript
Solve

Medium

Promise Resolve
Promises
Async-Await

2 mins

JavaScript
Solve

Easy

Throw, Try, Async
Promises
Async-Await

2 mins

JavaScript
Solve

Easy

Background Properties

2 mins

HTML/CSS
Solve

Easy

Colorful sentences

2 mins

HTML/CSS
Solve

Easy

Links

2 mins

HTML/CSS
Solve

Medium

Let's Hack
CSS Property

3 mins

HTML/CSS
Solve

Easy

Custom Exception
Exception Handling
Custom Exceptions

2 mins

Java
Solve

Hard

Holding References

2 mins

Java
Solve

Medium

Abstract Interface
OOPs
Interfaces

2 mins

Java
Solve

Medium

Garbage Collection
Garbage Collection

2 mins

Java
Solve

Hard

Static Init Blocks
OOPs

2 mins

Java
Solve

Medium

Multi Select
JOIN
GROUP BY

2 mins

SQL
Solve

Medium

nth highest sales
Nested queries
User Defined Functions

3 mins

SQL
Solve

Medium

Select & IN
Nested queries

3 mins

SQL
Solve

Medium

Sorting Ubers
Nested queries
Join
Comparison operators

3 mins

SQL
Solve

Hard

With, AVG & SUM
MAX() MIN()
Aggregate functions

2 mins

SQL
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
๐Ÿง Question๐Ÿ”ง Skill๐Ÿ’ช DifficultyโŒ› Time
Async Await Promises
Promises
Async-Await
JavaScript
Medium2 mins
Solve
Bitcoin prices
Axios
Promises
JavaScript
Medium2 mins
Solve
My Module
Scope
JavaScript
Medium2 mins
Solve
Promise Resolve
Promises
Async-Await
JavaScript
Medium2 mins
Solve
Throw, Try, Async
Promises
Async-Await
JavaScript
Easy2 mins
Solve
Background Properties
HTML/CSS
Easy2 mins
Solve
Colorful sentences
HTML/CSS
Easy2 mins
Solve
Links
HTML/CSS
Easy2 mins
Solve
Let's Hack
CSS Property
HTML/CSS
Medium3 mins
Solve
Custom Exception
Exception Handling
Custom Exceptions
Java
Easy2 mins
Solve
Holding References
Java
Hard2 mins
Solve
Abstract Interface
OOPs
Interfaces
Java
Medium2 mins
Solve
Garbage Collection
Garbage Collection
Java
Medium2 mins
Solve
Static Init Blocks
OOPs
Java
Hard2 mins
Solve
Multi Select
JOIN
GROUP BY
SQL
Medium2 mins
Solve
nth highest sales
Nested queries
User Defined Functions
SQL
Medium3 mins
Solve
Select & IN
Nested queries
SQL
Medium3 mins
Solve
Sorting Ubers
Nested queries
Join
Comparison operators
SQL
Medium3 mins
Solve
With, AVG & SUM
MAX() MIN()
Aggregate functions
SQL
Hard2 mins
Solve
Registration Queue
Logic
Queues
Coding
Easy30 minsSolve
Visitors Count
Strings
Logic
Coding
Medium30 minsSolve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment JavaScript, HTML/CSS, Java & 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 candidateโ€™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, HTML/CSS, Java & 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.

invite candidates
Reason #7

Detailed scorecards & benchmarks

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.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the JavaScript, HTML/CSS, Java & SQL Assessment Test

Why you should use Pre-employment JavaScript, HTML/CSS, Java & SQL Online Test?

The JavaScript, HTML/CSS, Java & 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:

  • Understanding of JavaScript fundamentals
  • Knowledge of ES6 syntax and features
  • Proficiency in async/await in JavaScript
  • Familiarity with HTML/CSS basics
  • Ability to handle and manipulate the DOM with JavaScript
  • Understanding of Java syntax
  • Knowledge of Java object-oriented programming concepts
  • Proficiency in SQL CRUD operations
  • Understanding of SQL joins and indexes

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, HTML/CSS, Java & SQL Online Test?

  • JavaScript Fundamentals

    JavaScript Fundamentals cover the core concepts of the JavaScript programming language, including variables, data types, operators, control flow, functions, and arrays. This skill is measured in the test to assess the candidate's understanding of the foundational concepts required to write JavaScript code.

  • ES6 Syntax

    ES6 Syntax refers to the features introduced in the ECMAScript 6 standard, such as arrow functions, template literals, spread syntax, and destructuring assignment. Assessing this skill helps gauge the candidate's familiarity with modern JavaScript syntax and their ability to utilize advanced language features.

  • Async/Await in JS

    Async/Await is a set of keywords in JavaScript that allow for cleaner and more expressive asynchronous code by simplifying the handling of Promises. This skill is important to measure as it indicates the candidate's proficiency in writing efficient and elegant asynchronous JavaScript code.

  • HTML/CSS Basics

    HTML/CSS Basics involve understanding the fundamental building blocks of the web - HTML, which provides structure, and CSS, which enables visual styling. Assessing this skill helps determine the candidate's grasp of the essential concepts and syntax required to create and style web pages.

  • DOM Handling with JS

    DOM (Document Object Model) Handling with JS refers to the manipulation and interaction with the HTML document structure using JavaScript. This skill is measured in the test to evaluate the candidate's ability to dynamically modify web page content and respond to user interactions.

  • Java Syntax

    Java Syntax covers the syntax and basic concepts of the Java programming language, including variables, data types, operators, control flow, and methods. Assessing this skill helps determine the candidate's understanding of the foundational elements of Java programming.

  • Java OOPs

    Java OOPs (Object-Oriented Programming) involves concepts such as inheritance, encapsulation, polymorphism, and abstraction, which are fundamental to Java development. This skill is measured in the test to assess the candidate's proficiency in applying object-oriented principles to develop efficient and maintainable Java code.

  • SQL CRUD operations

    SQL CRUD (Create, Read, Update, Delete) operations refer to the basic database operations for manipulating data in a relational database using SQL queries. Assessing this skill helps evaluate the candidate's ability to interact with databases and perform essential data manipulation tasks.

  • SQL Joins and Indexes

    SQL Joins and Indexes involve techniques in SQL for combining data from multiple tables using JOIN clauses and optimizing query performance using indexes. This skill is important to measure as it demonstrates the candidate's understanding of advanced SQL concepts for efficient data retrieval and manipulation.

  • Coding

    Coding skill refers to the candidate's ability to write clean, well-structured, and functional code. This skill is measured in the test to assess the candidate's overall programming proficiency and problem-solving abilities.

  • 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, HTML/CSS, Java & SQL Test to be based on.

    JavaScript variables
    JavaScript functions
    JavaScript loops
    JavaScript conditionals
    JavaScript arrays
    JavaScript objects
    JavaScript data types
    JavaScript scope
    JavaScript closures
    JavaScript callbacks
    JavaScript promises
    JavaScript template literals
    JavaScript destructuring
    JavaScript spread operator
    JavaScript arrow functions
    JavaScript classes
    JavaScript inheritance
    JavaScript lexical this
    JavaScript prototype
    JavaScript module pattern
    JavaScript async/await
    HTML tags
    HTML attributes
    HTML forms
    HTML tables
    HTML images
    CSS selectors
    CSS box model
    CSS layouts
    CSS flexbox
    CSS grid
    DOM manipulation with JavaScript
    Event handling in JavaScript
    DOM traversal and manipulation
    DOM manipulation with jQuery
    Java data types
    Java variables
    Java operators
    Java control statements
    Java arrays
    Java classes
    Java objects
    Java inheritance
    Java polymorphism
    Java abstraction
    Java encapsulation
    Java interfaces
    Java exception handling
    SQL SELECT statement
    SQL INSERT statement
    SQL UPDATE statement
    SQL DELETE statement
    SQL JOIN
    SQL indexes
    Coding problem-solving

What roles can I use the JavaScript, HTML/CSS, Java & SQL Online Test for?

  • Full Stack Developer
  • Java Developer

How is the JavaScript, HTML/CSS, Java & 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

  • Proficiency in JavaScript frameworks and libraries
  • Experience with HTML/CSS frameworks and preprocessors
  • Knowledge of Java collections and generics
  • Understanding of database management systems
  • Experience with version control systems
  • Proficiency in unit testing and test-driven development
  • Knowledge of software development life cycle
  • Ability to troubleshoot and debug code
  • Understanding of network protocols and architecture

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

Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

JavaScript, HTML/CSS, Java & SQL Hiring Test FAQs

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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