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SOLID Principles Online Assessment Test

🕒 Allotted Time: approx 45 mins

🧐 Questions:

  • Approx 20 MCQs

⚙️ Customized Based On:

  • Experience/ difficulty level
  • Multiple skills in 1 assessment
  • Job description/ role requirements

🧪 Test Options:

  • Preset test: Not available
  • Customized test: < 48 hour setup time

📝 Topics:

description
topic
Open Closed Principle (OCP)
Interface Segregation Principle (ISP)
Dependency Inversion Principle (DIP)
Single Responsibility Principle (SRP)
Liskov Substitution Principle (LSP)
SOLID
Coupling
Inversion of Control
Violation in SRP
Types of DI
See full list

Sample Adaface Questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this test will be non-googleable.

🧐 Question🔧 Skill💪 Difficulty⌛ Time
Hedge risk using derivates - Phenomenal Pte. Ltd., a Singap
FinanceEasy2 min
Custom Exception - What does the following code o
Exceptions
JavaEasy2 min
Huckleberry Finn typo - In the draft for a new edition
Attention to DetailEasy2 min
Go WaitGroup - What does the following Go cod
Concurrency
GoMedium2 min
ER Diagram and minimum tables - Look at the given ER diagram.
ER Diagram
Data ModelingMedium2 min
Paint says Bye! - Which SOLID principle is follo
SOLIDEasy2 min
Budget plan 1 - FinoRena Inc. wants to configu
Dynamics 365 FinanceMedium2 min

How to use the Adaface SOLID Principles test

Start screening candidates within minutes with the Adaface SOLID Principles ready-to-go test

1. Choose the most appropriate test for your role

2. Start inviting candidates to complete the assessment

3. Receive real time notifications and shortlist the best candidates

Customize the Adaface SOLID Principles Test according to your job description

1. Get a custom assessment from our library of 700+ skills within 48 hours

2. Start inviting candidates to complete the assesment

3. Receive real time notifications and shortlist the best candidates

Adaface SOLID Principles test is trusted by enterprises worldwide

amazon
PayPal
Morgan Stanley
Adidas
SG Government
Neilsen
UCLA
Ernst and Young
Microsoft
WeWork
Bosch
Optimum Solutions
SAP
Doubtnut
Deloitte
HCL
FusionCharts
United Nations
Love Bonito
ZiMetrics
MTM

About the Adaface SOLID Principles Test

Evaluate technical and coding skills with Adaface skills assessment platform powered by an intelligent chatbot

Topics:

description
topic
Open Closed Principle (OCP)
Interface Segregation Principle (ISP)
Dependency Inversion Principle (DIP)
Single Responsibility Principle (SRP)
Liskov Substitution Principle (LSP)
SOLID
Coupling
Inversion of Control
Violation in SRP
Types of DI
Cohesion
Encapsulation

Recommended Roles:

Javascript Developer
C# Developer
Java Developer
Python Developer

Why You Should Use This SOLID principles Test

The SOLID Principles 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 expensive engineering time by filtering out unqualified candidates.

SOLID is an acronym for the five important object-oriented design (OOD) principles that are intended to make software designs more reusable, maintainable, understandable, and flexible. SOLID principles are used in all object-oriented programming languages such as Java, C#, Python, etc.

The Adaface SOLID Principles test screens candidates for the typical skills recruiters look for in a Software Engineer:

  • Basic understanding of Coupling and Cohesion
  • OOD fundamentals
  • Expertise with SOLID principles
  • Violations of SOLID principles

The insights generated from this assessment can be used by recruiters and hiring managers to identify the best candidates for the role. Anti-cheating features enable you to be comfortable with conducting assessments online. The SOLID Principles test is ideal for helping recruiters identify which candidates have the technical skills to do well on the job.

About SOLID Principles

In Object-Oriented Programming, SOLID is an acronym for five important design principles intended to make software designs more reusable, scalable, and robust. Promoted as a subset of a set of principles by Robert C Martin, the SOLID principles are important for the creation of robust software that has low coupling, high cohesion, and strong encapsulation.

S.O.L.I.D stands for:

S – Single-Responsibility Principle

O – Open-Closed Principle

L – Liskov Substitution Principle

I – Interface Segregation Principle

D – Dependency Inversion Principle

Single-Responsibility Principle (SRP)

As per the SRP, a class must have only one responsibility and should do only the task for which it has been designed.

Benefits of using SRP: Reduced coupling and understandable code

Open-Closed Principle (OCP)

As per the OCP, software entities such as classes, functions, modules, etc, should be written in such a way that it must be easily extensible with new features without changing its existing code in use.

Benefits of using OCP: Codebase that is robust and reusable

Liskov Substitution Principle (LSP)

LSP was defined by Barbara Liskov and says that objects in a program must be replaceable by instances of their subtypes without altering the correct functioning of that program.

Benefits of using LSP: Class hierarchies are easier to understand

Interface Segregation Principle (ISP)

As per LSP, a class should not force any client to implement an interface that is irrelevant to them. It is the first principle that is applicable to Interfaces instead of classes.

Benefits of using ISP: Decoupled system and easy refactoring of code

Dependency Inversion Principle (DIP)

As per DIP, a particular class should not depend directly on another class, but rather on an abstraction of this class.

Benefits of using DIP: Reduced coupling

SOLID principles are applicable for all object-oriented programming languages such as Java, C#, Python, etc.

Distribution Of Test Scores

The actual score distributon will vary based on your candidate pipeline quality, but you should typically expect ~20% of the candidates to do well on Adaface assessments.

The score distribution for our assessments follow the normal curve. This is a good sign- standardized tests like SAT and GRE follow the normal distribution (bell curve).

Status quo assessments typically have the exact opposite of the bell curve (too many candidates getting close to 0, too many candidates getting close to 100 and too few candidates in the middle). This is typically because they focus on theoretical questions or trick questions, which are very binary in nature- either you know the trick/ theory or you don’t.

How Adaface Is Different

Adaface conversational assessments are reflective of on-the-job skills and see an 86% completion rate as compared to ~50% for traditional assessment platforms.

OLD WAY

TRADITIONAL TESTS

Theoretical questions/ puzzles

Feels like a test

One-size-fits-all assessments

😞
HIRE IN
Weeks/Months

NEW WAY

ADAFACE ASSESSMENTS

Questions for on-the-job skills

Conversational

Customized
assessments

😀️
HIRE IN
Days

FAQs

What is a custom assessment?

Every role is different and requires a custom assessment to identify top candidates efficiently. Adaface subject matter experts understand your job description/ role requirements and pick the most relevant questions from our library of 10000+ questions to create a technical assessment that helps you find the qualified candidates in your candidate pipeline quickly. All custom assessments are set up based on the job description, role requirements, must-have skills, experience level and salary range within a maximum of 48 hours and you will get an email notification once it goes live.

Check out a sample assessment here (no credit card required).

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify.

How is Adaface different from other assessment tools?

We believe that status quo tech assessment platforms are not a fair way for companies to evaluate engineers because they focus on trick questions/ puzzles/ niche algorithms. We started Adaface to help companies find great engineers by assessing on-the-job skills required for a role. Read more about why we started Adaface.

Here's what's different with Adaface:

  • High quality non-googleable questions that test for on-the-job skills as opposed to theoretical knowledge.
  • A friendly conversational assessment with a chatbot, instead of sending a "test" to a candidate. This translates to a higher completion rate. Adaface assessments (86% candidate completion rate), as opposed to traditional tests (40-50% candidate completion rate)
  • Customized assessments for 700+ skills at different experience levels.
Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Web proctoring
  • Webcam proctoring
  • Plagairism detection
  • Non-googleable questions
  • Secure browser

Read more the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. As in an assessment is optimizing to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 60%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

The platform is completely self-serve, so here's one way to proceed:

  • You can sign up for free to get a feel for how it works.
  • The free trial includes one sample assessment (Java/ JavaScript) that you will find in your dashboard when you sign up. You can use it to review the quality of questions, and the candidate experience of a conversational test on Adaface.
  • To review the quality of questions, you can also review our public questions for 50+ skills here.
  • Once you're convinced that you want to try it out with real assessments and candidates, you can pick a plan according to your requirements.
I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

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Have any questions about the Adaface SOLID Principles Test?
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