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JavaScript, HTML/CSS, C# & SQL Online Test

The JavaScript, HTML/CSS, C# & SQL Test uses scenario-based MCQs to evaluate candidates on their proficiency in JavaScript programming language, front-end web development using HTML/CSS markup, C# 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. Candidates are evaluated on their ability to use these technologies to develop interactive and scalable web applications, interact with databases, design database schemas, and write optimized and secure SQL queries for data manipulation and retrieval.

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Screen candidates with a 60 mins test

Test duration:  60 mins
Difficulty level:  Moderate
Availability:  Ready to use
Questions:
  • 5 JavaScript MCQs
  • 5 HTML/CSS MCQs
  • 5 C# MCQs
  • 5 SQL MCQs
  • 1 Coding Question
Covered skills:
JavaScript Fundamentals
ES6 Syntax
Async/ Await in JS
HTML/ CSS Basics
DOM Handling with JS
C# Syntax
C# OOPs
SQL CRUD operations
SQL Joins and Indexes
Coding
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Use the JavaScript, HTML/CSS, C# & SQL Test to shortlist qualified candidates

The JavaScript, HTML/CSS, C# & 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
  • Knowledge of ES6 syntax and features
  • Experience with asynchronous programming using async/await in JavaScript
  • Understanding of HTML/CSS basics and ability to create responsive designs
  • Proficiency in manipulating DOM using JavaScript
  • Understanding of C# syntax and ability to write code using C#
  • Knowledge of object-oriented programming principles in C#
  • Familiarity with SQL CRUD operations
  • Ability to work with SQL joins and indexes
  • Proficiency in solving coding problems
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Screen candidates with the highest quality 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 15,000+ questions. The actual questions on this JavaScript, HTML/CSS, C# & SQL Test will be non-googleable.

🧐 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 ‘a’ 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;
}

Hard

Classes and Constructors
OOPs
Solve
What is the output of the following C# code?
 image

Easy

Arrays and Exceptions
Arrays
Exceptions
Solve
What is the output of the following C# code?
 image

Medium

Multiple Namespaces
Solve
Class Student exists in both firstnamespace and secondnamespace namespaces. Which of the following are the correct ways to use the Student class?
 image

Medium

Static and constructors
OOPs
Solve
What is the output of the following C# code?
 image

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 ‘nth highest Sales’ 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.
⚠️⚠️⚠️ 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
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

Hard

Classes and Constructors
OOPs

2 mins

C#
Solve

Easy

Arrays and Exceptions
Arrays
Exceptions

2 mins

C#
Solve

Medium

Multiple Namespaces

2 mins

C#
Solve

Medium

Static and constructors
OOPs

3 mins

C#
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
🧐 Question🔧 Skill💪 Difficulty⌛ 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
Classes and Constructors
OOPs
C#
Hard2 mins
Solve
Arrays and Exceptions
Arrays
Exceptions
C#
Easy2 mins
Solve
Multiple Namespaces
C#
Medium2 mins
Solve
Static and constructors
OOPs
C#
Medium3 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

Test candidates on core JavaScript, HTML/CSS, C# & SQL Hiring Test topics

JavaScript Fundamentals: JavaScript Fundamentals refers to the core concepts, syntax, and basic functionality of the JavaScript programming language. It includes topics like variables, data types, operators, control flow, functions, and arrays. Measuring this skill is important as it forms the foundation of JavaScript development and demonstrates the candidate's understanding of the language.

ES6 Syntax: ES6 Syntax refers to the latest version of JavaScript, also known as ECMAScript 2015. It introduces new features and syntax improvements to make JavaScript code more concise and expressive. Measuring this skill helps assess a candidate's familiarity with modern JavaScript development practices and their ability to use advanced language features.

Async/ Await in JS: Async/ Await in JavaScript is a programming pattern that simplifies asynchronous code execution. It allows developers to write asynchronous functions in a synchronous style, making the code easier to read and maintain. Measuring this skill is important as it tests a candidate's understanding of handling asynchronous operations, such as API requests or data fetching, in JavaScript.

HTML/ CSS Basics: HTML/ CSS Basics refer to the fundamental concepts and syntax of HTML and CSS, the building blocks of web development. It includes topics like HTML tags, CSS selectors, styling elements, and creating layouts. Measuring this skill is essential as it assesses a candidate's ability to create and style basic web pages using HTML and CSS.

DOM Handling with JS: DOM Handling with JavaScript is the manipulation and interaction with the Document Object Model (DOM) using JavaScript. It involves selecting elements, modifying their properties, adding or removing elements, and responding to user events. Measuring this skill is crucial as it evaluates a candidate's proficiency in dynamically manipulating web pages and creating interactive user interfaces using JavaScript.

C# Syntax: C# Syntax refers to the rules and structure of the C# programming language. It includes topics like variables, data types, control flow, functions, classes, and object-oriented programming concepts. Measuring this skill is important as it tests a candidate's understanding of the C# language and their ability to write clean and efficient code.

C# OOPs: C# OOPs (Object-Oriented Programming) involves designing and implementing object-oriented solutions using C# language features like classes, inheritance, polymorphism, and encapsulation. Measuring this skill is crucial as it assesses a candidate's ability to write well-structured and maintainable code using object-oriented principles.

SQL CRUD operations: SQL CRUD (Create, Read, Update, Delete) operations represent the basic database operations performed using SQL (Structured Query Language). It includes inserting data into a database, retrieving data from a database, updating existing data, and deleting data. Measuring this skill is important as it evaluates a candidate's ability to work with databases and perform essential data manipulation tasks using SQL.

SQL Joins and Indexes: SQL Joins and Indexes are techniques used for efficient and optimized data retrieval from relational databases. SQL Joins allow combining data from multiple tables based on specified conditions, while Indexes enhance the database's search and retrieval performance. Measuring this skill is crucial as it tests a candidate's understanding of advanced SQL concepts and their ability to optimize queries for better database performance.

Coding: Coding skill refers to the ability to write clean, efficient, and functional code in the chosen programming language. Measuring this skill helps assess a candidate's expertise in translating problem statements into working code, applying programming concepts, and following best practices to produce reliable software solutions.

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Have questions about the JavaScript, HTML/CSS, C# & SQL Hiring Test?

How does pricing work?

You can check out our pricing plans.

Can I customize the test?

Yes, absolutely. Custom assessments are set up within 48 hours 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. You can also customize a test by uploading your own questions.

Can I combine multiple skills into one test?

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.

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

Here are few roles for which we recommend this test:

  • Full-stack Developer
  • C# Developer
  • Database Administrator
  • C# Application Developer
Can I see a sample test, or do you have a free trial?

Yes!

The free trial includes one sample technical test (Java/ JavaScript) and one sample aptitude test that you will find in your dashboard when you sign up. You can use it to review the quality of questions and the candidate experience of giving a test on Adaface.

You can preview any of the 500+ tests and see the sample questions to decide if it would be a good fit for your requirements.

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.

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.

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