Why you should use C# & SQL Online Test?

The C# & 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: C# Syntax -Grundlagen C# oops C# Datenstrukturen SQL CRUD Operations SQL schließt sich und Indizes mit C# Programmierung Ausnahmebehandlung in C# Objektorientierte Designprinzipien in C# Algorithmen in C# verstehen und implementieren Relationale Datenbankkonzepte und -design in SQL

C# & SQL Online Test

About the test:

Der C# SQL-Test verwendet szenariobasierte MCQs, um Kandidaten über das Verständnis der C# -Pergrammensprache und der SQL-Datenbanken zu bewerten. Der Test bewertet die Kandidaten über ihre Kenntnisse von C# -Syntax, objektorientierte Programmierkonzepte (OOP) und .NET Framework sowie ihre Fähigkeit zum Schreiben und Debuggen von C# Code. Es bewertet auch ihre Vertrautheit mit SQL -Syntax und -nutzung, SQL -Befehlen zum Erstellen, Abfragen und Ändern von relationalen Datenbanken und Tabellen, Datenbankdesign, Normalisierung und Indexierung sowie deren Fähigkeit, effiziente und optimierte SQL -Abfragen in C#zu schreiben.

Covered skills:

C# Syntax -Grundlagen
C# Datenstrukturen
SQL schließt sich und Indizes mit

C# oops
SQL CRUD Operations
C# Programmierung

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9 reasons why

Adaface C# & SQL Test is the most accurate way to shortlist C# Entwicklers

Reason #1

Tests for on-the-job skills

The 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:

Verständnis und Implementierung von C# Syntax -Grundlagen
Anwenden von objektorientierten Programmierkonzepten in C#
Arbeiten mit verschiedenen Datenstrukturen in C#
Durchführung von CRUD -Operationen in SQL
Verwendung von Verbindungen und Indizes effektiv in SQL
Anwenden von C# -Pergrammenfähigkeiten in realen Szenarien

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

Dies sind nur ein kleines Beispiel aus unserer Bibliothek mit mehr als 10.000 Fragen. Die tatsächlichen Fragen dazu C# & SQL -Test wird nichtgänger sein.

🧐 Question
Hard Classes and Constructors OOPs	Try practice test
What is the output of the following C# code?
Easy Arrays and Exceptions Arrays Exceptions	Try practice test
What is the output of the following C# code?
Medium Multiple Namespaces	Try practice test
Class Student exists in both firstnamespace and secondnamespace namespaces. Which of the following are the correct ways to use the Student class?
Medium Static and constructors OOPs	Try practice test
What is the output of the following C# code?
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
	Hard Classes and Constructors OOPs	2 mins C#	Try practice test
What is the output of the following C# code?
	Easy Arrays and Exceptions Arrays Exceptions	2 mins C#	Try practice test
What is the output of the following C# code?
	Medium Multiple Namespaces	2 mins C#	Try practice test
Class Student exists in both firstnamespace and secondnamespace namespaces. Which of the following are the correct ways to use the Student class?
	Medium Static and constructors OOPs	3 mins C#	Try practice test
What is the output of the following C# code?
	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
	Classes and Constructors OOPs	C#	Hard	2 mins	Try practice test
What is the output of the following C# code?
	Arrays and Exceptions Arrays Exceptions	C#	Easy	2 mins	Try practice test
What is the output of the following C# code?
	Multiple Namespaces	C#	Medium	2 mins	Try practice test
Class Student exists in both firstnamespace and secondnamespace namespaces. Which of the following are the correct ways to use the Student class?
	Static and constructors OOPs	C#	Medium	3 mins	Try practice test
What is the output of the following C# code?
	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

Mit Adaface konnten wir unseren Erstauswahlprozess um mehr als 75 % optimieren und so wertvolle Zeit sowohl für Personalmanager als auch für unser Talentakquiseteam gewinnen!

Brandon Lee, Leiter der Menschen, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment C# & 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 C# & 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

Ansicht der Probe 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

Learn more

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Ansicht der Probe Scorecard

About the C# & SQL Assessment Test

Why you should use Pre-employment C# & SQL Online Test?

The C# & 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:

C# Syntax -Grundlagen
C# oops
C# Datenstrukturen
SQL CRUD Operations
SQL schließt sich und Indizes mit
C# Programmierung
Ausnahmebehandlung in C#
Objektorientierte Designprinzipien in C#
Algorithmen in C# verstehen und implementieren
Relationale Datenbankkonzepte und -design in SQL

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 C# & SQL Online Test?

C# Syntax -Grundlagen
C# Syntax -Basics bezieht sich auf die grundlegenden Regeln und Struktur, die zum Schreiben von C# -Codes verwendet werden. Dies umfasst das Verständnis von Datentypen, Variablen, Operatoren, Kontrollstrukturen und grundlegenden Eingangs-/Ausgangsvorgängen. Die Bewertung dieser Fähigkeit stellt sicher, dass Kandidaten ein solides Verständnis der grundlegenden Bausteine der C# -Programmierung haben. und ihre Interaktionen zur Lösung realer Probleme. Diese Fähigkeit misst die Fähigkeit eines Kandidaten, objektorientierte Prinzipien wie Kapselung, Vererbung und Polymorphismus zur Entwicklung flexibler und modularer Code zu verwenden. Daten organisieren und speichern Daten effizient. Dies umfasst Arrays, Listen, Warteschlangen, Stapel und Wörterbücher. Die Bewertung dieser Fähigkeit hilft, das Verständnis des Kandidaten für die verschiedenen Arten von Datenstrukturen und deren Anwendung bei der Lösung komplexer Programmierherausforderungen zu bewerten. Löschen) Vorgänge beinhalten die Manipulation von Daten, die in einer Datenbank gespeichert sind. Dieser Skill testet die Kenntnisse eines Kandidaten beim Schreiben von SQL -Anweisungen, um Operationen wie das Einsetzen von Datensätzen, das Abrufen von Daten, das Aktualisieren vorhandener Datensätze und das Löschen von Datenbanktabellen auszuführen. SQL -Verbindungen und Indizes sind wichtige Konzepte in der Datenbankverwaltung, die ein effizientes und optimiertes Datenabruf erleichtern. Diese Fertigkeit misst die Fähigkeit eines Kandidaten, SQL -Abfragen zu schreiben, bei denen Tabellen basierend auf gemeinsamen Spalten basieren und Indizes zur Verbesserung der Abfrageleistung verwenden. Kenntnisse in der C# -Programmiersprache. Dies umfasst eine Kombination aus Syntax, objektorientierten Konzepten, Datenstrukturen und Problemlösungsfähigkeiten. Die Bewertung dieser Fähigkeit bietet Personalvermittlern ein umfassendes Verständnis der Fähigkeit eines Kandidaten, Anwendungen mit C#zu entwickeln.
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 C# & SQL -Test to be based on.
C# Variablen
C# Datentypen
C# Operatoren
C# Bedingte Aussagen
C# Loops
C# Arrays
C# Listen
C# Wörterbücher
C# Klassen
C# Vererbung
C# Schnittstellen
C# Polymorphismus
C# Kapselung
C# Abstraktion
C# Ausnahmehandling
SQL erstellen Anweisung
SQL Insert Anweisung
SQL SELECT -Anweisung
SQL Update Anweisung
SQL Delete Anweisung
SQL Join
SQL Innere Join
SQL Outer Join
SQL -Index
SQL Primärschlüssel
SQL Fremdschlüssel
SQL -Gruppe von
SQL Order By
SQL -Unterabfragen
C# Linq
C# Lambda Ausdrücke
C# Delegierte
C# Ereignisse
C# Nullierstypen
C# Generika
C# Multithreading
SQL -Transaktionen
SQL gespeicherte Verfahren
SQL -Ansichten
C# Datei io
C# Serialisierung
C# Reflexion
C# reguläre Ausdrücke
SQL -Aggregationsfunktionen
SQL Normalisierung
C# Unit -Tests
C# Debugging
SQL -Auslöser
C# Fehlerbehandlung
SQL -Unterabfragen
C# Ausnahmehandling
SQL -Einschränkungen
C# Codeoptimierung
C# Speicherverwaltung
SQL gespeicherte Funktionen
C# ereignisgesteuerte Programmierung
C# Designmuster
C# Webdienste
SQL -Ansichten
C# Networking
C# Datenbankkonnektivität
SQL schließt sich an
C# GUI -Entwicklung
C# Entity Framework
SQL -Leistungsstimmung

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What roles can I use the C# & SQL Online Test for?

C# Entwickler
SQL -Datenbankadministrator

How is the C# & 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

Optimierung von SQL -Abfragen für die Leistung
Datenbanknormalisierung und Denormalisierung in SQL
Arbeiten mit Sammlungen und Generika in C#
LINQ in C# verstehen und verwenden
Arbeiten mit gespeicherten Verfahren in SQL
Verständnis und Implementierung der Vererbung in C#
Verständnis und Verwendung der Indexierung in SQL
Implementierung von Multithreading und asynchronem Programmieren in C#
Transaktionen in SQL verstehen und verwenden
Testen und Debuggen in C#

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

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Ansicht der Probe Scorecard

Die Personalmanager hatten das Gefühl, dass sie durch die technischen Fragen, die sie während der Panel-Interviews stellten, erkennen konnten, welche Kandidaten bessere Ergebnisse erzielten, und sie von denen unterscheiden konnten, die nicht so gut abschnitten. Sie sind Sehr zufrieden mit der Qualität der Kandidaten, die beim Adaface-Screening in die engere Auswahl kommen.

85%

Verringerung der Screening -Zeit

Volle Fallstudie anzeigen

C# & SQL Hiring Test FAQs

Kann ich mehrere Fähigkeiten zu einer benutzerdefinierten Bewertung kombinieren?

Ja absolut. Basierend auf Ihrer Stellenbeschreibung werden benutzerdefinierte Bewertungen eingerichtet und enthalten Fragen zu allen von Ihnen angegebenen Must-Have-Fähigkeiten.

Haben Sie Anti-Cheating- oder Proctoring-Funktionen?

Wir haben die folgenden Anti-Cheating-Funktionen:

Nicht-Googling-Fragen
IP -Verbreitung
Web -Verbreitung
Webcam -Proctoring
Plagiaterkennung
sicherer Browser

Lesen Sie mehr über die Proctoring -Funktionen.

Wie interpretiere ich die Testergebnisse?

Die wichtigste Sache, die Sie beachten sollten, ist, dass eine Bewertung ein Eliminierungswerkzeug ist, kein Auswahlwerkzeug. Eine Bewertung der Qualifikationsbewertung wird optimiert, um Ihnen zu helfen, Kandidaten zu beseitigen, die technisch nicht für die Rolle qualifiziert sind. Sie ist nicht optimiert, um Ihnen dabei zu helfen, den besten Kandidaten für die Rolle zu finden. Die ideale Möglichkeit, eine Bewertung zu verwenden, besteht also darin, einen Schwellenwert zu entscheiden (in der Regel 55%, wir helfen Ihnen bei der Benchmark) und alle Kandidaten einladen, die für die nächsten Interviewrunden über dem Schwellenwert punkten.

Für welche Erfahrung kann ich diesen Test verwenden?

Jede Adaface -Bewertung ist an Ihre Stellenbeschreibung/ ideale Kandidatenpersönlichkeit angepasst (unsere Experten für Fache werden die richtigen Fragen für Ihre Bewertung aus unserer Bibliothek mit über 10000 Fragen auswählen). Diese Einschätzung kann für jede Erfahrungsstufe angepasst werden.

Bekommt jeder Kandidat die gleichen Fragen?

Ja, es macht es Ihnen viel einfacher, Kandidaten zu vergleichen. Optionen für MCQ -Fragen und die Reihenfolge der Fragen werden randomisiert. Wir haben Anti-Cheating/Proctoring Funktionen. In unserem Unternehmensplan haben wir auch die Möglichkeit, mehrere Versionen derselben Bewertung mit Fragen mit ähnlichen Schwierigkeitsgraden zu erstellen.