Why you should use Backend Engineer Online Test?

The Backend Engineer 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: Backend -udvikling ved hjælp af forskellige programmeringssprog og rammer Databasedesign og -styring med populære databasesystemer API -design og udvikling til problemfri kommunikation mellem forskellige softwarekomponenter Softwarearkitekturdesign og implementering til skalerbare og vedligeholdelige systemer Objektorienterede programmeringsprincipper og bedste praksis Systemdesign for at sikre effektiv og pålidelig ydelse Ydelsesoptimeringsteknikker til forbedring af applikationshastighed og lydhørhed Fejlfinding og fejlfindingsevner til at identificere og løse problemer Versionskontrol ved hjælp af Git eller andre lignende værktøjer Enhedstest og viden om test af rammer

Backend Engineer Online Test

Q: What topics are covered in the Backend Engineer Online Test?

Backend -udvikling Databasedesign API -design Softwarearkitektur Objektorienteret programmering Systemdesign Præstationsoptimering

About the test:

Backend Engineer Online Test bruger scenariebaserede MCQ'er til at evaluere kandidater om deres viden om backend-udvikling, som involverer design og implementering af server-side-logik, databaser og API'er til understøttelse af web- og mobilapplikationer. Testen vurderer kandidaternes færdigheder i at designe skalerbare og robuste arkitekturer, skrive effektiv kode på sprog som Java, Python eller Ruby, bygge og integrere med databaser, implementere RESTful API'er og debugging og optimere server-side-kode.

Covered skills:

Backend -udvikling
API -design
Objektorienteret programmering
Præstationsoptimering

Databasedesign
Softwarearkitektur
Systemdesign

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9 reasons why

Adaface Backend Engineer Test is the most accurate way to shortlist Backend Engineers

Reason #1

Tests for on-the-job skills

The Backend Engineer 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:

Dygtige til backend -udvikling ved hjælp af forskellige programmeringssprog
Stærk forståelse af databasedesign og -styring
I stand til at designe og udvikle API'er, der overholder industriens bedste praksis
Vidende i softwarearkitekturprincipper og mønstre
Dygtige til objektorienterede programmeringskoncepter og implementering
Erfaret med systemdesign og bygning af skalerbare applikationer
I stand til ydelsesoptimeringsteknikker og strategier
Dygtige til fejlfinding og fejlfinding af komplekse backend -problemer
Evne til at arbejde med og integrere tredjeparts-API'er
Kendskab til sikkerheds bedste praksis for backend -udvikling
Fortrolighed med cache -mekanismer og strategier
Forståelse af datastrukturer og algoritmer i backend -sammenhæng

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 Backend Engineer Test vil være ikke-gåbart.

🧐 Question
Medium Broker Replication System Design	Solve
You are working on a large-scale, distributed, and fault-tolerant message processing system designed to handle high throughput and low latency requirements. The system is based on the publish-subscribe pattern and uses multiple brokers to distribute messages across various topics and partitions. In this architecture, both publishers and subscribers are considered clients. The brokers are responsible for replicating messages among themselves to ensure fault tolerance and data durability. A client reports successfully publishing a message on a specific topic. However, one of the subscribers has not received the message. To investigate the issue, you have gathered detailed logs and system design data, as shown below: Based on the information provided, which of the following is the most likely reason for the issue? A: The message was not published on the topic B: Client C is not subscribed to the correct topic C: There is a replication lag between brokers B1 and B2 D: Client C is consuming from the wrong broker E: The message processing system failed to acknowledge the message
Medium Load Balancer Latency Debugging	Solve
A backend service is experiencing intermittent latency spikes while processing incoming requests. The service is deployed in a multi-node environment with a load balancer in front. You suspect that the issue might be related to resource contention. You collect the following performance metrics from the affected nodes during a spike: Which of the following is the most probable cause of the latency spikes? A: High memory usage on the affected nodes. B: Disk I/O bottlenecks on the affected nodes. C: Insufficient CPU resources on the affected nodes. D: Uneven distribution of incoming requests by the load balancer. E: Network latency between the load balancer and the backend nodes.
Medium Decryptor Strings	Solve
What does the following pseudo code print?
Hard Fibonacci codes Time Complexity Pseudo Code	Solve
Here are three pseudocodes for calculating the Nth Fibonacci number. Which of the following statements about these codes are true? A: Time complexity/efficiency of CODE 1, CODE 2, CODE 3 is the same. B: CODE 2 is more space-efficient than CODE 3. C: CODE 3 is more space-efficient than CODE 2. D: CODE 2 is more time-efficient than CODE 1. E: CODE 3 is more time-efficient than CODE 1.
Hard Palindrome Test cases Strings	Solve
Go through the following faulty palindrome detection pseudocode and test cases. For which of the test cases would the code return true? Testcases A: a B: aba C: aaa D: aac
Medium Rewards Activities Order Database Connection	Solve
A new popular app tracks the activities performed by its users and grants them rewards based on each individual's total activities performed in a year. This data is maintained in a database table (activitesinfo), with the following columns: userid, totalactivities, reward. This year, due to fundraising activity, the company has decided to further reward its users by enhancing the reward as per the following formula: If reward < = 4000, increase it by 2%, If 4000 < reward <= 8000, increase it by 4%, If reward > 8000, increase it by 6%. The tech team has written three different scripts to calculate increment for each slab, each script is to run as a separate transaction. Here are the three scripts: Script 1: For users with reward <= 4000, set reward = reward * 1.02 Script 2: For users with reward > 4000 and reward <= 8000, set reward = reward * 1.04 Script 3: For users with reward > 8000, set reward = reward * 1.06 Each script is to be executed separately. Which of the following options will update the rewards as expected: A: Execute Script 1 followed by Script 2 followed by Script 3 B: Execute Script 2 followed by Script 3; Script 1 running concurrently throughout C: Execute Script 3 followed by Script 2; Script 1 running concurrently throughout D: Execute Script 3 followed by Script 2 followed by Script 1 E: Execute Script 2 followed by Script 3 followed by Script 1
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 Broker Replication System Design	3 mins Backend	Solve
You are working on a large-scale, distributed, and fault-tolerant message processing system designed to handle high throughput and low latency requirements. The system is based on the publish-subscribe pattern and uses multiple brokers to distribute messages across various topics and partitions. In this architecture, both publishers and subscribers are considered clients. The brokers are responsible for replicating messages among themselves to ensure fault tolerance and data durability. A client reports successfully publishing a message on a specific topic. However, one of the subscribers has not received the message. To investigate the issue, you have gathered detailed logs and system design data, as shown below: Based on the information provided, which of the following is the most likely reason for the issue? A: The message was not published on the topic B: Client C is not subscribed to the correct topic C: There is a replication lag between brokers B1 and B2 D: Client C is consuming from the wrong broker E: The message processing system failed to acknowledge the message
	Medium Load Balancer Latency Debugging	3 mins Backend	Solve
A backend service is experiencing intermittent latency spikes while processing incoming requests. The service is deployed in a multi-node environment with a load balancer in front. You suspect that the issue might be related to resource contention. You collect the following performance metrics from the affected nodes during a spike: Which of the following is the most probable cause of the latency spikes? A: High memory usage on the affected nodes. B: Disk I/O bottlenecks on the affected nodes. C: Insufficient CPU resources on the affected nodes. D: Uneven distribution of incoming requests by the load balancer. E: Network latency between the load balancer and the backend nodes.
	Medium Decryptor Strings	2 mins Technical Aptitude	Solve
What does the following pseudo code print?
	Hard Fibonacci codes Time Complexity Pseudo Code	2 mins Technical Aptitude	Solve
Here are three pseudocodes for calculating the Nth Fibonacci number. Which of the following statements about these codes are true? A: Time complexity/efficiency of CODE 1, CODE 2, CODE 3 is the same. B: CODE 2 is more space-efficient than CODE 3. C: CODE 3 is more space-efficient than CODE 2. D: CODE 2 is more time-efficient than CODE 1. E: CODE 3 is more time-efficient than CODE 1.
	Hard Palindrome Test cases Strings	2 mins Technical Aptitude	Solve
Go through the following faulty palindrome detection pseudocode and test cases. For which of the test cases would the code return true? Testcases A: a B: aba C: aaa D: aac
	Medium Rewards Activities Order Database Connection	3 mins Technical Aptitude	Solve
A new popular app tracks the activities performed by its users and grants them rewards based on each individual's total activities performed in a year. This data is maintained in a database table (activitesinfo), with the following columns: userid, totalactivities, reward. This year, due to fundraising activity, the company has decided to further reward its users by enhancing the reward as per the following formula: If reward < = 4000, increase it by 2%, If 4000 < reward <= 8000, increase it by 4%, If reward > 8000, increase it by 6%. The tech team has written three different scripts to calculate increment for each slab, each script is to run as a separate transaction. Here are the three scripts: Script 1: For users with reward <= 4000, set reward = reward * 1.02 Script 2: For users with reward > 4000 and reward <= 8000, set reward = reward * 1.04 Script 3: For users with reward > 8000, set reward = reward * 1.06 Each script is to be executed separately. Which of the following options will update the rewards as expected: A: Execute Script 1 followed by Script 2 followed by Script 3 B: Execute Script 2 followed by Script 3; Script 1 running concurrently throughout C: Execute Script 3 followed by Script 2; Script 1 running concurrently throughout D: Execute Script 3 followed by Script 2 followed by Script 1 E: Execute Script 2 followed by Script 3 followed by Script 1
	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
	Broker Replication System Design	Backend	Medium	3 mins	Solve
You are working on a large-scale, distributed, and fault-tolerant message processing system designed to handle high throughput and low latency requirements. The system is based on the publish-subscribe pattern and uses multiple brokers to distribute messages across various topics and partitions. In this architecture, both publishers and subscribers are considered clients. The brokers are responsible for replicating messages among themselves to ensure fault tolerance and data durability. A client reports successfully publishing a message on a specific topic. However, one of the subscribers has not received the message. To investigate the issue, you have gathered detailed logs and system design data, as shown below: Based on the information provided, which of the following is the most likely reason for the issue? A: The message was not published on the topic B: Client C is not subscribed to the correct topic C: There is a replication lag between brokers B1 and B2 D: Client C is consuming from the wrong broker E: The message processing system failed to acknowledge the message
	Load Balancer Latency Debugging	Backend	Medium	3 mins	Solve
A backend service is experiencing intermittent latency spikes while processing incoming requests. The service is deployed in a multi-node environment with a load balancer in front. You suspect that the issue might be related to resource contention. You collect the following performance metrics from the affected nodes during a spike: Which of the following is the most probable cause of the latency spikes? A: High memory usage on the affected nodes. B: Disk I/O bottlenecks on the affected nodes. C: Insufficient CPU resources on the affected nodes. D: Uneven distribution of incoming requests by the load balancer. E: Network latency between the load balancer and the backend nodes.
	Decryptor Strings	Technical Aptitude	Medium	2 mins	Solve
What does the following pseudo code print?
	Fibonacci codes Time Complexity Pseudo Code	Technical Aptitude	Hard	2 mins	Solve
Here are three pseudocodes for calculating the Nth Fibonacci number. Which of the following statements about these codes are true? A: Time complexity/efficiency of CODE 1, CODE 2, CODE 3 is the same. B: CODE 2 is more space-efficient than CODE 3. C: CODE 3 is more space-efficient than CODE 2. D: CODE 2 is more time-efficient than CODE 1. E: CODE 3 is more time-efficient than CODE 1.
	Palindrome Test cases Strings	Technical Aptitude	Hard	2 mins	Solve
Go through the following faulty palindrome detection pseudocode and test cases. For which of the test cases would the code return true? Testcases A: a B: aba C: aaa D: aac
	Rewards Activities Order Database Connection	Technical Aptitude	Medium	3 mins	Solve
A new popular app tracks the activities performed by its users and grants them rewards based on each individual's total activities performed in a year. This data is maintained in a database table (activitesinfo), with the following columns: userid, totalactivities, reward. This year, due to fundraising activity, the company has decided to further reward its users by enhancing the reward as per the following formula: If reward < = 4000, increase it by 2%, If 4000 < reward <= 8000, increase it by 4%, If reward > 8000, increase it by 6%. The tech team has written three different scripts to calculate increment for each slab, each script is to run as a separate transaction. Here are the three scripts: Script 1: For users with reward <= 4000, set reward = reward * 1.02 Script 2: For users with reward > 4000 and reward <= 8000, set reward = reward * 1.04 Script 3: For users with reward > 8000, set reward = reward * 1.06 Each script is to be executed separately. Which of the following options will update the rewards as expected: A: Execute Script 1 followed by Script 2 followed by Script 3 B: Execute Script 2 followed by Script 3; Script 1 running concurrently throughout C: Execute Script 3 followed by Script 2; Script 1 running concurrently throughout D: Execute Script 3 followed by Script 2 followed by Script 1 E: Execute Script 2 followed by Script 3 followed by Script 1
	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 Backend Engineer 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 Backend Engineer 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

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About the Backend Engineer Assessment Test

Why you should use Pre-employment Backend Engineer Online Test?

The Backend Engineer 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:

Backend -udvikling ved hjælp af forskellige programmeringssprog og rammer
Databasedesign og -styring med populære databasesystemer
API -design og udvikling til problemfri kommunikation mellem forskellige softwarekomponenter
Softwarearkitekturdesign og implementering til skalerbare og vedligeholdelige systemer
Objektorienterede programmeringsprincipper og bedste praksis
Systemdesign for at sikre effektiv og pålidelig ydelse
Ydelsesoptimeringsteknikker til forbedring af applikationshastighed og lydhørhed
Fejlfinding og fejlfindingsevner til at identificere og løse problemer
Versionskontrol ved hjælp af Git eller andre lignende værktøjer
Enhedstest og viden om test af rammer

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 Backend Engineer Online Test?

backend-udvikling
backend-udvikling henviser til oprettelse og vedligeholdelse af serversiden-logikken, der driver websteder og applikationer. Det involverer opgaver såsom håndtering af datalagring, behandling af brugeranmodninger og styring af serverinfrastruktur. Måling af denne færdighed sikrer, at kandidater har en stærk forståelse af backend -teknologier og effektivt kan opbygge robuste og effektive backend -systemer.
databasedesign
Databasedesign involverer design af struktur og organisering af databaser til Gem effektivt og hent data. Det inkluderer opgaver såsom at definere tabeller, skabe forhold mellem dem og optimere forespørgsler. Måling af denne færdighed hjælper med at måle en kandidats evne til at skabe skalerbare og velorganiserede databaser, hvilket er vigtigt for at opbygge pålidelige og performante applikationer.
API-design
API-design fokuserer på at skabe godt- Designerede applikationsprogrammeringsgrænseflader (API'er), der muliggør kommunikation mellem forskellige softwarekomponenter. Det involverer bestemmelse af passende slutpunkter, anmodning/svarformater og godkendelsesmekanismer. Måling af denne færdighed sikrer, at kandidater kan skabe intuitive og udviklervenlige API'er, der fremmer let integration og effektivt samarbejde.
softwarearkitektur
Softwarearkitektur omfatter design og organisering på højt niveau og organisering af Softwaresystemer. Det involverer at tage beslutninger om struktur, komponenter og interaktioner mellem et system for at imødekomme funktionelle og ikke-funktionelle krav. Måling af denne færdighed hjælper med at evaluere en kandidats evne til at skabe skalerbar, vedligeholdelig og tilpasningsdygtig softwarearkitekturer, der letter fleksibel og robust applikationsudvikling.
objektorienteret programmering
Objektorienteret programmering (OOP ) er et programmeringsparadigme, der organiserer softwaredesign omkring objekter, der indkapsler data og opførsel. Det involverer at definere klasser, skabe genstande og bruge arv og polymorfisme. Måling af denne færdighed vurderer en kandidats færdigheder i at anvende OOP -principper og teknikker, hvilket gør det muligt for dem at skrive modulær, genanvendelig og udvidelig kode.
systemdesign
Systemdesign fokuserer på at designe arkitekturen og Komponenter i store systemer. Det involverer at identificere systemkrav, specificere moduler og grænseflader og overveje skalerbarhed, fejltolerance og ydeevne. Måling af denne færdighed sikrer, at kandidater kan designe robuste og effektive systemer, der er i stand til at håndtere høje mængder data og brugere.
Performance Optimization
Performance Optimization involverer forbedring af hastighed, effektivitet og ressourceudnyttelse af softwaresystemer. Det inkluderer opgaver såsom kodeprofilering, identificering af flaskehalse og implementering af optimeringer. Måling af denne færdighed hjælper med at identificere kandidater, der forstår vigtigheden af at optimere softwareydelsen, hvilket gør dem i stand til at skabe meget lydhøre og skalerbare applikationer.
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 Backend Engineer Test to be based on.
Backend -udvikling
Frontend Development
Databasedesign
Relationsdatabaser
NoSQL -databaser
API -design
Afslappede API'er
Graphql
Mikroservices
Softwarearkitektur
MVC Arkitektur
Layered Architecture
Begivenhedsdrevet arkitektur
Objektorienteret programmering
Arv
Polymorfisme
Indkapsling
Abstraktion
Systemdesign
Skalerbarhed
Høj tilgængelighed
Belastning afbalancering
Datapartitionering
Præstationsoptimering
Cache
Forespørgseloptimering
Samtidighed
Fejlfinding
Fejlfinding
Undtagelseshåndtering
Sikkerheds bedste praksis
Godkendelse
Bemyndigelse
Kryptering
Tredjeparts API-integration
Oauth
Webhooks
Logning
Fejlhåndtering
Cache -strategier
Datakonstruktioner
Arrays
Linkede lister
Stabler
Køer
Hash borde
Binære træer
Grafer
Algoritmer
Sortering
Søger
Dynamisk programmering
Rekursion
Regelmæssige udtryk

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What roles can I use the Backend Engineer Online Test for?

Backend Engineer
Fuld stakudvikler
Software ingeniør
API -udvikler
Softwarearkitekt

How is the Backend Engineer 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

Erfaring med mikroservicesarkitektur
Forståelse af cloud computing og implementering
Kendskab til cache -mekanismer og teknikker
Designmønstre og deres anvendelse i softwareudvikling
Erfaring med containeriseringsteknologier som Docker
Færdigheder til at designe og vedligeholde afslappende API'er
Kendskab til sikkerheds bedste praksis inden for softwareudvikling
Erfaring med meddelelseskøer og begivenhedsdrevne arkitekturer
Forståelse af distribuerede systemer og deres udfordringer
Færdigheder i SQL og forespørgselsoptimering
Evne til at optimere applikationsydelse og skalerbarhed med cache -mekanismer

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

Preview this test

Se prøvescorekort

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

Backend Engineer 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.