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 Basics C# ups C# datastrukturer SQL CRUD -operationer SQL slutter sig til og indekser C# Programmering Undtagelseshåndtering i C# Objektorienterede designprincipper i C# Forståelse og implementering af algoritmer i C# Relationsdatabasekoncepter og design i SQL

C# & SQL Online Test

About the test:

C# SQL-testen bruger scenariebaserede MCQ'er til at evaluere kandidater om deres forståelse af C# programmeringssprog og SQL-databaser. Test vurderer kandidater om deres viden om C# syntaks, objektorienteret programmering (OOP) koncepter og .NET-ramme samt deres evne til at skrive og debug C# -kode. Det evaluerer også deres fortrolighed med SQL -syntaks og brug, SQL -kommandoer til oprettelse, forespørgsel og ændring af relationelle databaser og tabeller, databasedesign, normalisering og indeksering og deres evne til at skrive effektive og optimerede SQL -forespørgsler i C#.

Covered skills:

C# Syntax Basics
C# datastrukturer
SQL slutter sig til og indekser

C# ups
SQL CRUD -operationer
C# Programmering

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9 reasons why

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

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:

Forståelse og implementering af C# Syntax Basics
Anvendelse af objektorienterede programmeringskoncepter i C#
Arbejder med forskellige datastrukturer i C#
Udfører CRUD -operationer i SQL
Brug af sammenføjninger og indekser effektivt i SQL
Anvendelse af C# programmeringsevner i virkelige verdensscenarier

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 kun en lille prøve fra vores bibliotek med 10.000+ spørgsmål. De faktiske spørgsmål om dette C# & SQL -test vil være ikke-gåbart.

🧐 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

Med Adaface var vi i stand til at optimere vores indledende screeningsproces med op mod 75 %, hvilket frigjorde kostbar tid for både ansættelsesledere og vores talentanskaffelsesteam!

Brandon Lee, Leder af mennesker, 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

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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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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 Basics
C# ups
C# datastrukturer
SQL CRUD -operationer
SQL slutter sig til og indekser
C# Programmering
Undtagelseshåndtering i C#
Objektorienterede designprincipper i C#
Forståelse og implementering af algoritmer i C#
Relationsdatabasekoncepter og design i 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 Basics
C# Syntax Basics henviser til de grundlæggende regler og struktur, der bruges til at skrive C# -kode. Dette inkluderer forståelse af datatyper, variabler, operatører, kontrolstrukturer og grundlæggende input/output -operationer. Evaluering af denne færdighed sikrer, at kandidater har en solid forståelse af de grundlæggende byggesten til C# -programmering.
C# ups
C# oops (objektorienteret programmering) involverer design og oprettelse af klasser, objekter , og deres interaktioner til at løse problemer i den virkelige verden. Denne færdighed måler en kandidats evne til at anvende objektorienterede principper såsom indkapsling, arv og polymorfisme til at udvikle fleksible og modulære kode Organisering og lagring af data effektivt. Dette inkluderer arrays, lister, køer, stabler og ordbøger. Evaluering af denne færdighed hjælper med at vurdere en kandidats forståelse af de forskellige typer datastrukturer og deres anvendelse i løsning af komplekse programmeringsudfordringer.
SQL CRUD -operationer
SQL CRUD (CREATE, LÆS, UPDATE, Slet) operationer involverer manipulering af data, der er gemt i en database. Denne færdighed tester en kandidats færdigheder i at skrive SQL -udsagn til at udføre operationer såsom indsættelse af poster, hentning af data, opdatering af eksisterende poster og sletning af poster fra databasetabeller.
SQL tilslutter sig og indekser
SQL tilslutter sig, og indekser er vigtige koncepter i databasestyring, der letter effektiv og optimeret dataindhentning. Denne færdighed måler en kandidats evne til at skrive SQL -forespørgsler, der involverer sammenføjning af tabeller baseret på fælles kolonner og anvendelse af indeks til at forbedre forespørgselsydelsen.
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# variabler
C# datatyper
C# operatører
C# Betingede udsagn
C# Loops
C# arrays
C# lister
C# Dictionaries
C# klasser
C# arv
C# grænseflader
C# polymorfisme
C# indkapsling
C# abstraktion
C# Undtagelseshåndtering
SQL Opret erklæring
SQL INSERT -erklæring
SQL Select -erklæring
SQL Update -erklæring
SQL Slet -sætning
SQL Deltag i
SQL Inner Deltag
SQL Ydre slutter sig til
SQL -indeks
SQL Primary Key
SQL Udenlandsk nøgle
SQL Group af
SQL Bestil af
SQL -underspil
C# Linq
C# Lambda -udtryk
C# delegater
C# begivenheder
C# nullable typer
C# generik
C# Multithreading
SQL -transaktioner
SQL lagrede procedurer
SQL -visninger
C# fil IO
C# serialisering
C# refleksion
C# Regulære udtryk
SQL -aggregeringsfunktioner
SQL -normalisering
C# Enhedstestning
C# debugging
SQL -triggere
C# Fejlhåndtering
SQL -underspil
C# Undtagelseshåndtering
SQL -begrænsninger
C# Kodeoptimering
C# hukommelsesstyring
SQL -gemte funktioner
C# begivenhedsdrevet programmering
C# Designmønstre
C# Web Services
SQL -visninger
C# netværk
C# Databaseforbindelse
SQL slutter sig til
C# GUI -udvikling
C# Entity Framework
SQL Performance Tuning

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

C# udvikler
SQL -databaseadministrator

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

Optimering af SQL -forespørgsler til ydeevne
Database normalisering og denormalisering i SQL
Arbejde med samlinger og generika i C#
Forståelse og brug af LINQ i C#
Arbejde med lagrede procedurer i SQL
Forståelse og implementering af arv i C#
Forståelse og brug af indeksering i SQL
Implementering af multithreading og asynkron programmering i C#
Forståelse og brug af transaktioner i SQL
Test og fejlsøgning i C#

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

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Ansættelseslederne mente, at de gennem de tekniske spørgsmål, som de stillede under panelinterviewene, var i stand til at fortælle, hvilke kandidater der havde bedre score og differentieret med dem, der ikke scorede så godt. De er meget tilfreds med kvaliteten af de kandidater, der er nomineret med Adaface-screeningen.

85%

Reduktion i screeningstid

Se den fulde casestudie

C# & SQL Hiring Test Ofte stillede spørgsmål

Kan jeg kombinere flere færdigheder i en brugerdefineret vurdering?

Ja absolut. Brugerdefinerede vurderinger er oprettet baseret på din jobbeskrivelse og vil omfatte spørgsmål om alle must-have-færdigheder, du angiver.

Har du nogen anti-cheating eller proctoring-funktioner på plads?

Vi har følgende anti-cheating-funktioner på plads:

Ikke-gåbare spørgsmål
IP Proctoring
Webproctoring
Webcam Proctoring
Detektion af plagiering
Sikker browser

Læs mere om Proctoring Features.

Hvordan fortolker jeg testresultater?

Den primære ting at huske på er, at en vurdering er et elimineringsværktøj, ikke et udvælgelsesværktøj. En færdighedsvurdering er optimeret for at hjælpe dig med at eliminere kandidater, der ikke er teknisk kvalificerede til rollen, den er ikke optimeret til at hjælpe dig med at finde den bedste kandidat til rollen. Så den ideelle måde at bruge en vurdering på er at beslutte en tærskelværdi (typisk 55%, vi hjælper dig med benchmark) og inviterer alle kandidater, der scorer over tærsklen for de næste interviewrunder.

Hvilken oplevelsesniveau kan jeg bruge denne test til?

Hver Adaface -vurdering tilpasses til din jobbeskrivelse/ ideel kandidatperson (vores emneeksperter vælger de rigtige spørgsmål til din vurdering fra vores bibliotek på 10000+ spørgsmål). Denne vurdering kan tilpasses til ethvert erfaringsniveau.

Får hver kandidat de samme spørgsmål?

Ja, det gør det meget lettere for dig at sammenligne kandidater. Valgmuligheder for MCQ -spørgsmål og rækkefølgen af spørgsmål randomiseres. Vi har anti-cheating/proctoring funktioner på plads. I vores virksomhedsplan har vi også muligheden for at oprette flere versioner af den samme vurdering med spørgsmål om lignende vanskelighedsniveauer.