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About the test:

Docker-testen bruger scenariebaserede MCQ'er til at evaluere kandidater om deres færdigheder i at arbejde med Docker-containere, deres viden om Docker-arkitektur, Docker-kommandolinjegrænseflade, Dockerfile-syntaks, Docker-netværk, Docker Volumes og Docker Compose. Disse nøglefærdigheder/emner er vigtige for at evaluere en kandidats evne til at implementere og administrere applikationer ved hjælp af Docker.

Covered skills:

  • Docker Basics
  • Docker -containere
  • Docker -volumener
  • Docker Swarm
  • Docker -orkestrering
  • Docker -billeder
  • Docker Networking
  • Docker Compose
  • Docker Security
  • Docker -fejlfinding

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9 reasons why
9 reasons why

Adaface Docker Test is the most accurate way to shortlist Docker -udviklers



Reason #1

Tests for on-the-job skills

The Docker 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:

  • Evne til at forstå og forklare det grundlæggende i Docker
  • Evne til at oprette, administrere og tilpasse Docker -billeder
  • Evne til lancering, administration og fejlfinding af Docker -containere
  • Evne til at konfigurere og administrere Docker Networking
  • Evne til at arbejde med Docker -volumener og datapersistens
  • Evne til at bruge Docker-komponering til multi-container-applikationer
  • Evne til at implementere og administrere tjenester ved hjælp af Docker Swarm
  • Evne til at implementere sikkerhedsforanstaltninger i Docker -miljøet
  • Evne til at forstå og implementere Docker -orkestrering
  • Evne til at fejlfinde almindelige problemer i Docker -miljøet
Reason #2

No trick questions

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 Docker -test vil være ikke-gåbart.

🧐 Question

Medium

Docker Multistage Build Analysis
Multistage Builds
Optimization
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Consider the following Dockerfile, which utilizes multistage builds. The aim is to build a lightweight, optimized image that just runs the application.
 image
The Dockerfile first defines a base image that includes Node.js and npm, then it creates an intermediate image to install the npm dependencies. Afterwards, it runs the tests in another stage and finally, creates the release image.

Which of the following statements are true?

A: The final image will include the test scripts.
B: If a test fails, the final image will not be created.
C: The node_modules directory in the final image comes from the base image.
D: The final image will only contain the necessary application files and dependencies.
E: If the application's source code changes, only the release stage needs to be rebuilt.

Easy

Docker Networking and Volume Mounting Interplay
Networking
Volume Mounting
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You have two docker containers, X and Y. Container X is running a web service listening on port 8080, and container Y is supposed to consume this service. Both containers are created from images that don't have any special network configurations.

Container X has a Dockerfile as follows:
 image
And, you build and run it with the following commands:
 image
Container Y is also running alpine with python installed, and it's supposed to read data from the `/app/data` directory and send a GET request to `http://localhost:8080` every 5 minutes. The Dockerfile for container B is:
 image
And you run it with:
 image
Assuming all the python scripts work perfectly and firewall isn't blocking any connections, you find that container Y can't access the web service of container X via `http://localhost:8080` and also it can't read the data in `/app/data` directory. What could be the potential reason(s)?
A: Y can't access X's web service because they're in different Docker networks.
B: Y can't read the data because the volume is not shared correctly.
C: Both A and B are correct.
D: Both A and B are incorrect.

Medium

Dockerfile Optimization
Dockerfile
Multi-stage builds
Layer Caching
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You have been asked to optimize a Dockerfile for a Python application that involves a heavy dependency installation. Here is the Dockerfile you are starting with:
 image
Given that the application's source code changes frequently but the dependencies listed in requirements.txt rarely change, how can you optimize this Dockerfile to take advantage of Docker's layer caching, reducing the build time?
A: Move the `RUN pip install` command to before the `COPY` command.
B: Change `COPY . /app` to `COPY ./app.py /app` and move the `RUN pip install` command to before the `COPY` command.
C: Add `RUN pip cache purge` before `RUN pip install`.
D: Replace the base image with `python:3.8-slim`.
E: Implement multi-stage builds.

Medium

Dockerfile Updates
Cache
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Check the following Dockerfile used for a project (STAGE 1):
 image
We created an image from this Dockerfile on Dec 14 2021. A couple of weeks after Dec 14 2021, Ubuntu released new security updates to their repository. After 2 months, we modified the file (STAGE 2):
 image
Couple of weeks later, we further modified the file to add a local file ada.txt to /ada.txt (STAGE 3): (Note that ada.txt exists in /home/adaface and the dockerfile exists in /home/code folders)
 image
Pick correct statements:

A: If we run “docker build .” at STAGE 2, new Ubuntu updates will be fetched because apt-get update will be run again since cache is invalidated for all lines/layers of Dockerfile when a new line is added.
B: If we run “docker build .” at STAGE 2, new Ubuntu updates will not be fetched since cache is invalidated only for last two lines of the updated Dockerfile. Since the first two commands remain the same, cached layers are re-used skipping apt get update.
C: To skip Cache, “docker build -no-cache .” can be used at STAGE 2. This will ensure new Ubuntu updates are picked up.
D: Docker command “docker build .” at STAGE 3 works as expected and adds local file ada.txt to the image.
E: Docker command “docker build .” at STAGE 3 gives an error “no such file or directory” since /home/adaface/ada.txt is not part of the Dockerfile context.

Medium

Efficient Dockerfile
Dockerfile
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Review the following Dockerfiles that work on two projects (project and project2):
 image
All Docker files have the same end result:

- ‘project’ is cloned from git. After running few commands, ‘project’ code is removed.
- ‘project2’ is copied from file system and permissions to the folder is changed.
Pick the correct statements:

A: File 1 is the most efficient of all.
B: File 2 is the most efficient of all.
C: File 3 is the most efficient of all.
D: File 4 is the most efficient of all.
E: Merging multiple RUN commands into a single RUN command is efficient for ‘project’ since each RUN command creates a new layer with changed files and folders. Deleting files with RUN only marks these files as deleted but does not reclaim disk space. 
F: Copying ‘project2’ files and changing ownership in two separate commands will result in two layers since Docker duplicates all the files twice.
🧐 Question🔧 Skill

Medium

Docker Multistage Build Analysis
Multistage Builds
Optimization

3 mins

Docker
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Easy

Docker Networking and Volume Mounting Interplay
Networking
Volume Mounting

3 mins

Docker
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Medium

Dockerfile Optimization
Dockerfile
Multi-stage builds
Layer Caching

2 mins

Docker
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Medium

Dockerfile Updates
Cache

2 mins

Docker
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Medium

Efficient Dockerfile
Dockerfile

2 mins

Docker
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🧐 Question🔧 Skill💪 Difficulty⌛ Time
Docker Multistage Build Analysis
Multistage Builds
Optimization
Docker
Medium3 mins
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Docker Networking and Volume Mounting Interplay
Networking
Volume Mounting
Docker
Easy3 mins
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Dockerfile Optimization
Dockerfile
Multi-stage builds
Layer Caching
Docker
Medium2 mins
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Dockerfile Updates
Cache
Docker
Medium2 mins
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Efficient Dockerfile
Dockerfile
Docker
Medium2 mins
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Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

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 Docker -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 Docker -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.

invite candidates
Reason #7

Detailed scorecards & benchmarks

Reason #7

Detailed scorecards & benchmarks

Along with scorecards that report the performance of the candidate in detail, you also receive a comparative analysis against the company average and industry standards.

View sample 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.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the Docker Assessment Test

Why you should use Pre-employment Docker Online Test?

The Docker -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:

  • Forståelse af Docker Basics and Concepts
  • Oprettelse, styring og implementering af Docker -billeder
  • Arbejder med Docker -containere og deres livscyklus
  • Forståelse af Docker -netværk og kommunikation mellem containere
  • Håndtering af Docker -volumener og vedvarende data
  • Arbejde med Docker Compose for at definere og administrere multi-container-applikationer
  • Implementering og styring af tjenester ved hjælp af Docker Swarm
  • Implementering af Docker -sikkerhedspraksis og politikker
  • Orkestrering af Docker-containere til store implementeringer

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 Docker Online Test?

  • Docker -billeder

    Docker -billeder er byggestenene til containere, der indeholder containere Alt nødvendigt for at køre en ansøgning. Denne færdighed skal måles for at evaluere kandidatens forståelse af billedskabelse, versionskontrol og distribution, som er afgørende for effektive og pålidelige containerinstallationer.

  • docker -containere

    Docker -containere er lette vægt , isolerede miljøer, der driver applikationer. Måling af denne færdighed hjælper med at vurdere kandidatens evne til at styre og konfigurere containere, inklusive netværks- og opbevaringsindstillinger, samt deres viden om containeriseringsprincipper og bedste praksis.

  • Docker Networking

    Docker Networking involverer at skabe og styre netværksforbindelser mellem containere og andre ressourcer. Test af denne færdighed giver rekruttereren mulighed for at måle kandidatens dygtighed til at konfigurere og fejlfinde Docker -netværk, forstå netværkstilstande og implementere DNS og belastebalancering i containermiljø Giv vedvarende opbevaring til containere, der gør det muligt at gemme data og deles mellem forskellige containerforekomster. Evaluering af denne færdighed hjælper med at bestemme kandidatens viden om volumenstyring, datastidensstrategier og hvordan man håndterer filsystemtilladelser og ejerskab inden for containere.

  • docker Compose

    Docker Compose er et værktøj til at definere og kørsel af multi-container-applikationer. Måling af denne færdighed er vigtig i vurderingen af ​​kandidatens evne til at skrive og implementere Docker -komponere filer, der definerer de tjenester, netværk og volumener, der kræves til komplekse containerapplikationer.

  • docker -sverm

    docker Swarm er en indbygget klynge- og orkestreringsløsning til Docker. Testning af denne færdighed evaluerer kandidatens forståelse af sværmtilstand, herunder oprettelse og styring af sværmklynger, implementering af tjenester og skalering af applikationer på tværs af flere Docker -noder for høj tilgængelighed.

  • Docker Security

    Docker Security Fokuserer på at implementere bedste praksis og funktioner til at sikre Docker -miljøer og containeriserede applikationer. Måling af denne færdighed hjælper med at måle kandidatens viden om Docker -sikkerhedsmekanismer, såsom brugernavneområder, billedscanning, containerisolering, netværkssikkerhed og sårbarhedsstyring.

  • Docker -orkestrering

    Docker -orkestrering involverer involverer Håndtering og koordinering af flere Docker -containere og -tjenester i et distribueret miljø. Evaluering af denne færdighed giver rekrutterere mulighed for at bestemme kandidatens fortrolighed med Docker -orkestreringsværktøjer som Kubernetes eller Docker Swarm, samt deres evne til at konfigurere og overvåge containeriserede applikationer i skala.

  • docker fejlfinding

    Docker -fejlfinding indebærer at identificere og løse problemer, der kan opstå i Docker -miljøer, såsom containerforstærkninger, netværksproblemer eller performance -flaskehalse. Måling af denne færdighed hjælper med at vurdere kandidatens evne til effektivt at diagnosticere og fejlfinde problemer i containeriserede applikationer, hvilket sikrer glatte og pålidelige operationer.

  • 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 Docker -test to be based on.

    Docker -installation
    Docker Architecture
    Dockerfile
    Docker -billedlag
    Docker Container Lifecycle
    Docker -netværkstilstande
    Docker Volume Management
    Docker Compose Yaml Syntax
    Docker Swarm Setup and Configuration
    Docker -service skalering
    Docker Security Best Practices
    Docker -orkestreringsværktøjer
    Docker -fejlfindingsteknikker
    Docker CLI -kommandoer
    Docker Registry
    Docker -containerlogfiler
    Docker containermiljøvariabler
    Docker Container Health Checks
    Docker Container Resource Management
    Docker Container Interkommunikation
    Docker -billedmærkning og versionering
    Docker -billedoptimeringsteknikker
    Docker -netværkskonfigurationer
    Docker Volume Backup og gendannelse
    Docker komponerer miljøvariabler
    Docker Swarm Service Discovery
    Docker Swarm Node Management
    Docker Security Scanning
    Docker -orkestreringsmønstre
    Docker -fejlfindingsværktøjer
    Docker -kommandolinjemuligheder
    Docker Image Cache
    Docker Container Startup Options
    Docker Container Environment Isolation
    Docker -billedregistreringsgodkendelse
    Docker Network Routing
    Docker -volumentilladelser
    Docker Compose Deployment Strategies
    Docker Swarm Load Balancing
    Docker Security Revision
    Docker Container Resource Monitoring
    Docker -billedlag Optimering
    Docker Network overlays
    Docker -volumendrivere
    Docker komponerer skalering
    Docker Swarm Service -opdateringer
    Docker -sikkerhedspolitikker
    Docker Orchestration Rollback
    Docker Container Log Management
    Docker Container Networking Fejlfinding
    Docker -billedsårbarhed scanning
    Docker Compose Network Configuration
    Docker Swarm Health Checks
    Docker Security hærdning
    Docker Container Process Monitoring
    Docker -billedstørrelsesreduktion
    Docker Network Firewall -indstillinger
    Docker Volume Backup Strategies
    Docker Compose Service Discovery
    Docker Swarm Service -begrænsninger
    Docker Security Compliance
    Docker Container Performance Optimization
    Docker Image Layer Cache
    Docker Network Load Balancing
    Docker -volumenkryptering
    Docker Compose Volume Management
    Docker Swarm Secret Management
    Docker -sikkerhedssårbarheder
    Docker container høj tilgængelighed
    Docker -billedversionsstrategier
    Docker Network Traffic Control
    Docker -volumenreplikation
    Docker komponerer miljøvariabel substitution
    Docker Swarm Stack -installation
    Docker Security Auditing Tools
    Docker Container Resource Isolation
    Docker -billedopbevaringsoptimering
    Docker Network DNS Resolution
    Docker Volume Size Management
    Docker Compose Service Scalability
    Docker Swarm Multi-Manager Setup
    Docker Security Incident Response
    Docker containerlogrotation
    Docker -billedkildekontrolintegration
    Docker Network Latency Optimization
    Docker Volume Performance Tuning
    Docker komponerer afhængighedsstyring
    Docker Swarm Service rullende opdateringer
    Docker Security Compliance Scanning
    Docker Container Debug Logging
    Docker Image Multi-Arch Support
    Docker Network Gateway -konfiguration
    Docker Volume Snapshotting
    Docker Compose Container Linking
    Docker Swarm Multi-Cluster Setup
    Docker Security Access Control
    Docker Container Log Aggregation
    Docker Image Artifact Management
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What roles can I use the Docker Online Test for?

  • Docker -udvikler
  • DevOps Engineer
  • Site Pålidelighedsingeniør
  • Infrastrukturingeniør
  • Containeriseringsspecialist
  • Backend -udvikler

How is the Docker 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

  • Design og implementering af Docker -infrastruktur
  • Bygning af modstandsdygtige og skalerbare Docker -arkitektur
  • Implementering af containerorkestrering med Kubernetes og Docker
  • Integrering af Docker med CI/CD -rørledninger
  • Håndtering af Docker i skymiljøer
  • Overvågning og logning af dockercontainere og applikationer
  • Implementering af høj tilgængelighed og fejltolerance i Docker -implementeringer
  • Automatisering af Docker -opgaver ved hjælp af scripting og automatiseringsværktøjer
  • Udførelse af Docker -billedoptimering og størrelsesreduktion
  • Konfiguration og styring af avanceret Docker -netværk
Singapore government logo

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

Docker 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.

Jeg er kandidat. Kan jeg prøve en øvelsestest?

Nej. Desværre understøtter vi ikke praksisforsøg i øjeblikket. Du kan dog bruge vores eksempler på spørgsmål til praksis.

Hvad er omkostningerne ved at bruge denne test?

Du kan tjekke vores prisplaner.

Kan jeg få en gratis prøve?

Ja, du kan tilmelde dig gratis og forhåndsvise denne test.

Jeg flyttede lige til en betalt plan. Hvordan kan jeg anmode om en brugerdefineret vurdering?

Her er en hurtig guide til hvordan man anmoder om en brugerdefineret vurdering på adaface.

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Ready to use the Adaface Docker -test?
Ready to use the Adaface Docker -test?
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40 min tests.
No trick questions.
Accurate shortlisting.
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