Ruby & Rails Online Test

About the test:

Ruby＆Railsオンラインテストでは、シナリオベースのMCQを使用して、Rubyプログラミング言語とRails Webフレームワークの習熟度に関する候補者を評価します。このテストでは、オブジェクト指向プログラミング、モデルビューコントローラーアーキテクチャ、ActivereCord、ルーティング、移行、RESTFUL APIなどのトピックに対する候補者の理解を評価します。候補者は、RubyとRailsを使用してスケーラブルで保守可能なWebアプリケーションを開発する能力と、Rubyの宝石、ツール、ライブラリを使用して一般的なプログラミングの問題を解決する能力について評価されます。

Covered skills:

ルビーの基本
Rails Fundamentals
レールでAPIを休ませます

Ruby Oops
Rails MVC
ルビーコーディング

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9 reasons why

Adaface Ruby & Rails Test is the most accurate way to shortlist Ruby開発者s

Reason #1

Tests for on-the-job skills

The Ruby & Rails 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:

Ruby Basicsに熟練しています
Ruby Oopsの強い理解
Railsの基礎に精通しています
Rails MVCで知識があります
RailsでREST APIを構築できます
ルビーコーディングに熟練しています
例外とエラーの効率的な処理に熟練しています
Rubyでオブジェクト指向のプログラミング概念を使用する機能
Railsを使用してWebアプリケーションを開発できます
RailsにRESTFUL APIを設計および実装できます

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

これらは、10,000以上の質問のライブラリからのわずかなサンプルです。これに関する実際の質問 Ruby＆Railsテストグーグルできません.

🧐 Question
Easy Arrays Strings Arrays Strings	Try practice test
Check the following Ruby code: We want the following execution result: - Commit - PR - Merge What should we replace __BLOCK__ with to achieve this?
Medium Class and Self OOPs	Try practice test
What is the execution result of the following Ruby code?
Easy Exceptions Exceptions OOPs	Try practice test
What is the result of following Ruby code:
Medium New Class OOPs Singleton	Try practice test
Check the following Ruby code: Which all of the following statements should replace __BLOCK__ to have "Marvel" as execution result? A: Sample.new.class.ciao B: Sample.class.new.ciao C: Sample.new.ciao D: Sample.ciao
Hard Movie query problem	Try practice test
Our intern created the following model scope and they want to use in this view: Which of these code snippets they use to fetch the correct results, and avoid the N+1 query issue?
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
	Easy Arrays Strings Arrays Strings	2 mins Ruby	Try practice test
Check the following Ruby code: We want the following execution result: - Commit - PR - Merge What should we replace __BLOCK__ with to achieve this?
	Medium Class and Self OOPs	2 mins Ruby	Try practice test
What is the execution result of the following Ruby code?
	Easy Exceptions Exceptions OOPs	2 mins Ruby	Try practice test
What is the result of following Ruby code:
	Medium New Class OOPs Singleton	2 mins Ruby	Try practice test
Check the following Ruby code: Which all of the following statements should replace __BLOCK__ to have "Marvel" as execution result? A: Sample.new.class.ciao B: Sample.class.new.ciao C: Sample.new.ciao D: Sample.ciao
	Hard Movie query problem	4 mins Rails	Try practice test
Our intern created the following model scope and they want to use in this view: Which of these code snippets they use to fetch the correct results, and avoid the N+1 query issue?
	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
	Arrays Strings Arrays Strings	Ruby	Easy	2 mins	Try practice test
Check the following Ruby code: We want the following execution result: - Commit - PR - Merge What should we replace __BLOCK__ with to achieve this?
	Class and Self OOPs	Ruby	Medium	2 mins	Try practice test
What is the execution result of the following Ruby code?
	Exceptions Exceptions OOPs	Ruby	Easy	2 mins	Try practice test
What is the result of following Ruby code:
	New Class OOPs Singleton	Ruby	Medium	2 mins	Try practice test
Check the following Ruby code: Which all of the following statements should replace __BLOCK__ to have "Marvel" as execution result? A: Sample.new.class.ciao B: Sample.class.new.ciao C: Sample.new.ciao D: Sample.ciao
	Movie query problem	Rails	Hard	4 mins	Try practice test
Our intern created the following model scope and they want to use in this view: Which of these code snippets they use to fetch the correct results, and avoid the N+1 query issue?
	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

Adaface を使用することで、最初の選考プロセスを 75% 以上最適化することができ、採用担当マネージャーと人材獲得チームの両方にとって貴重な時間を同様に解放することができました。

Brandon Lee, 人々の責任者, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Ruby＆Railsテスト 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 Ruby＆Railsテスト 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 Ruby & Rails Assessment Test

Why you should use Pre-employment Ruby & Rails Online Test?

The Ruby＆Railsテスト 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:

ルビーの基本
Ruby Oops
Rails Fundamentals
Rails MVC
レールでAPIを休ませます
ルビーコーディング
Rubyの例外とエラーの処理
ルビーのオブジェクト指向の原則を理解する
Railsを使用したWebアプリケーションの構築
レールにMVCアーキテクチャの実装

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 Ruby & Rails Online Test?

Ruby Basics
このスキルは、構文、データ型、変数、制御フローなど、Rubyプログラミング言語の基本的な概念をカバーしています。テストでこのスキルを測定して、効率的で保守可能なコードを作成するために不可欠なRubyのコア概念に対する候補者の理解を評価することが重要です。クラス、オブジェクト、継承、多型など、ルビーのオブジェクト指向プログラミングの概念に焦点を当てています。このスキルを測定するには、複雑なアプリケーションの構築に重要なオブジェクト指向プログラミングの原理を使用して、スケーラブルで再利用可能なコードを設計および実装する候補者の能力を評価する必要があります。 <p>このスキルには、Model-View-Controller（MVC）アーキテクチャ、ルーティング、アクティブレコード、データベース統合など、Ruby on Railsフレームワークの基本的な側面が含まれます。このスキルを測定することで、採用担当者は、Railsフレームワークの仕組みとベストプラクティスに従ってWebアプリケーションを構築する能力を理解する候補者の習熟度を評価できます。 -Ruby on Railsフレームワーク内のView-Controller（MVC）パターン。このスキルを測定するには、Railsアプリケーションでコードを効果的に構築および整理する方法についての候補者の理解を評価することが重要です。 P>このスキルは、Ruby on Railsを使用してRestful APIの実装をカバーしています。 REST APIは最新のWeb開発のバックボーンであるため、このスキルを測定することが重要であり、APIの構築、設計、およびテストに関する候補者の専門知識を評価することで、堅牢なWebサービスの開発に関与する複雑さを処理できるようにするのに役立ちます。 Ruby Coding </h4> <p>このスキルは、候補者の習熟度をクリーンで効率的で慣用的なルビーコードを書くことを評価します。このスキルを測定して、候補者のコーディングスタイル、問題解決能力、および有能なRuby開発者にとって不可欠な品質である一般的なRubyイディオムに精通している必要があります。
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 Ruby＆Railsテスト to be based on.
変数
データ型
オペレーター
条件付きステートメント
ループ
機能
クラス
継承
多型
カプセル化
ActiverCord
ルーティング
コントローラー
ビュー
Model-View-Controller
安らかなルート
シリアル化剤
認証
許可
テスト
協会
ヘルパー
コールバック
移行
検証
エラー処理
APIバージョン化
キャッシング
バックグラウンドジョブ
ページネーション
展開
アクションメーラー
アクションケーブル
gemfile
rspec
FactoryBot
JavaScript統合
CSS統合
JSONシリアル化
データベースクエリ
資産パイプライン
ActiveJob
WebSockets
ActionView
ActionController
ActionDispatch
宝石開発
ローカリゼーション
プラグインの開発
パフォーマンスの最適化
タスクオートメーション
継続的インテグレーション
git統合
コードリファクタリング
デバッグ
コマンドラインの使用
正規表現
SQLクエリ

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What roles can I use the Ruby & Rails Online Test for?

Ruby開発者
Rails開発者
バックエンド開発者
フルスタック開発者

How is the Ruby & Rails 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

レールで安らかなAPIを開発します
Rubyで適切なデータ構造とアルゴリズムを使用します
Rubyコードのテストとデバッグ
レールでのデータベースの相互作用の理解
Railsでのユーザー認証と承認の実装
RubyおよびRailsアプリケーションのパフォーマンスの最適化
Rubyのサードパーティライブラリと宝石を使用しています
レールにキャッシュメカニズムの実装
RubyおよびRailsアプリケーションの展開
RubyとRailsの生産問題のトラブルシューティングと解決

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

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採用担当者は、パネル面接中に尋ねる専門的な質問を通じて、どの候補者がより良いスコアを持っているかを判断し、スコアが低い候補者と区別できると感じました。彼らです非常に満足 Adaface のスクリーニングで最終候補者リストに選ばれた候補者の質を重視します。

85%

スクリーニング時間の短縮

完全なケーススタディを表示します

Ruby & Rails Hiring Test よくある質問

複数のスキルを1つのカスタム評価に組み合わせることはできますか？

そのとおり。カスタム評価は、職務内容に基づいて設定され、指定したすべての必須スキルに関する質問が含まれます。

アンチチートまたは監督の機能はありますか？

次のアンチチート機能があります。

グーグル不可能な質問
IP監督
Webの提案
ウェブカメラの監督
盗作の検出
安全なブラウザ

[プロクチャリング機能]（https://www.adaface.com/proctoring）の詳細をご覧ください。

テストスコアを解釈するにはどうすればよいですか？

留意すべき主なことは、評価が選択ツールではなく排除ツールであることです。スキル評価が最適化され、技術的にその役割の資格がない候補者を排除するのに役立ちます。これは、役割の最良の候補者を見つけるのに役立つために最適化されていません。したがって、評価を使用する理想的な方法は、しきい値スコア（通常は55％、ベンチマークを支援します）を決定し、インタビューの次のラウンドのしきい値を超えてスコアを上回るすべての候補者を招待することです。