HTML/CSS, JavaScript, C# Algorithms, and SQL Online Test

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The HTML/CSS, JavaScript, C# Algorithms, and SQL online test assesses candidates' knowledge across the whole Web stack. HTML, CSS, and JavaScript on the Web front-end, algorithmic-thinking skills in C#, and SQL on the back-end for data access.

It's an ideal test for pre-employment screening. A good full stack C# developer needs to be able to use a wide range of technologies, including solving back-end problems of a significant computational complexity.

This online test requires candidates to solve coding problems, find and fix bugs in multiple technologies, and analyze or design an algorithm using C# as the programming language.

Recommended Job Roles

Full-Stack Developer
C# Developer
.NET Developer
Web Developer
JavaScript Developer
SQL Developer

Sample Candidate Report


Sample Free Questions

Ensure

3min
  -  
Easy  
  -  
CODE

JavaScript Language Public

Implement the ensure function so that it throws an error if called without arguments or the argument is undefined. Otherwise it should return the given value.

Students

3min
  -  
Easy  
  -  
CODE

SQL Aggregation Public

Given the following data definition, write a query that returns the number of students whose first name is John.

TABLE students
   id INTEGER PRIMARY KEY,
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL

Semantics

7min
  -  
Easy  
  -  
CODE

HTML/CSS HTML5 Public

Update the website's HTML to make use of semantic elements so that:

  • The classless outer div element is replaced with a more appropriate element.
  • The divs with the image and caption classes are replaced with self-contained content elements.
  • The divs with the lorem-ipsum and description classes are replaced with elements, so that by default only the contents of the description element are shown. When the contents of the description element are clicked, the visibility of the rest of the lorem-ipsum element is toggled.

Binary Search Tree

15min
  -  
Easy  
  -  
CODE

C# Algorithmic thinking Data structures Public

A three-node binary tree.Binary search tree (BST) is a binary tree where the value of each node is larger or equal to the values in all the nodes in that node's left subtree and is smaller than the values in all the nodes in that node's right subtree.

Write a function that, efficiently with respect to time used, checks if a given binary search tree contains a given value.

For example, for the following tree:

  • n1 (Value: 1, Left: null, Right: null)
  • n2 (Value: 2, Left: n1, Right: n3)
  • n3 (Value: 3, Left: null, Right: null)

Call to Contains(n2, 3) should return true since a tree with root at n2 contains number 3.

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Premium Questions

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Questions
Prefix, Upload, Link, Bicycle, Editor, Classroom, Filter, Stopwatch, Runner, Movies, Disposable Wrapper, Index Performance, Tasks, Poll, Rectangles, Blog, Read Write Execute, Needle, Log Parser, Label Color, Height, Widgets, Driver Exam, Positive Numbers, Logo, Vectors, Crop Ratio, Article Style, Weighted Average, Retirees, Chicken, Share Button, Ad, Racer, Authors, Countries, Employee Manager, Merge Stock Index, Paragraph, Paragraph, Post Comment, Row Appender, Validation, Username, Keywords, Chain Link, Hobbies, Hobbies, Sort Params, Node, Cheapest Product, Links, Programmer Teacher, Vectors, Username, Function Wrapper, Segment, Anchors, Shipping, Confirm, Movies Live, Double, Reorder, Hide Button, Timesheet, Read First Line, Truthy Expressions, Stack to List, Addition, Array Search, ATM Locations, Autocomplete, Bookmark, Christmas Tree, Department Report, Developers, iframe, Ingredients, Loading Bar, Delete Orders, Product Rating, Product Refactoring, Products, Restaurant Menu, Roads, Sales, Shirts, Snapshot, Snapshot, Student Activities, Table of Names, Transactions, Warehouse, Word Count, Projects, Menu Items, Date Transform, Baby Names, Loading, Log Parser, Segment, Date Transform, Cards, Shining Star, Document Store, Youngest Child, SMS Messages, Procedural Generator, Format Table, Document Counter, Adder, Breakfast Menu, Cities, Screen Reader, Shelf, Scale Font Size, Bank Branches, Hospital Patients, New Folder, Screen, Eye of the Storm, Internal Nodes, Movie Night, Window Manager, Moving Total, Entry, Unique Numbers, Rare, Paper Strip, Platformer, Max Sum, Friend, Remove Repetitions, Unique Name, Log Patch, Log Patch, Matryoshka Doll, Stories, Ban Users, Train
Skills
C# LINQ HTML/CSS HTML attributes Language JavaScript Arrays Closures Bug fixing Memory management SQL Aggregation Subqueries OOP Indexes Joins Conditions HTML5 Semantic tags Arithmetic Strings Stream Serialization CSS selectors Positioning Exceptions Searching Insertion Styling Multithreading Union DOM manipulation Event handling Data structures Iteration Tables Algorithmic thinking CSS Advanced Recursion Constraints Database Schema Performance tuning Update Delete Refactoring Sorting Views Animation TDD Random Selectors Accessibility Test case design Classes ECMAScript 2015 Graphs Monkey Patching Extension Methods Dynamic programming
Score Distribution
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