Exam Code: 70-357J
Exam Name: Developing Mobile Apps (70-357日本語版)
Updated: Oct 31, 2026
Q & A: 55 Questions and Answers
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| Certification Vendor: | Microsoft |
|---|---|
| Exam Name: | Developing Mobile Apps |
| Exam Number: | 70-357 |
| Real Exam Qty: | 40-60 |
| Certificate Validity Period: | Retired as of January 31, 2021; certifications earned remain valid until expiration |
| Exam Format: | Drag-and-drop, Multiple-choice, Case studies, Performance-based items |
| Exam Price: | $165 USD (varies by region) |
| Available Languages: | French, Portuguese (Brazil), Russian, Spanish, Chinese (Simplified), German, English, Chinese (Traditional), Japanese |
| Related Certifications: | MCSA: Universal Windows Platform MCSD: App Builder |
| Passing Score: | 700 out of 1000 |
| Exam Duration: | 150 minutes |
| Recommended Training: | Microsoft Official Learning |
| Exam Registration: | Microsoft Exam Page |
| Sample Questions: | ![]() |
| Exam Way: | Proctored at authorized test centers or online proctoring; retired since Jan 31, 2021 |
| Pre Condition: | Typically 2+ years of experience developing Windows apps with C# and XAML; familiarity with MVVM, Entity Framework, and authentication technologies; Visual Studio 2015+ recommended |
| Official Syllabus URL: | https://learn.microsoft.com/en-us/credentials/certifications/exams/70-357/ |
| Section | Weight | Objectives |
|---|---|---|
| Implement page navigation and lifecycle events | 10-15% | - Choose navigation patterns (Hub, Master/Details, Tabs, Nav Pane) - Implement navigation using Frame and navigation helpers - Implement command bars, menus, and dialogs - Manage app suspension, resuming, and activation |
| Develop a XAML page layout for an adaptive UI | 10-15% | - Select appropriate XAML layout panels - Configure grid, alignment, margins, and padding - Create and use custom controls - Implement responsive and adaptive UI with VisualStateManager and AdaptiveTriggers |
| Implement data access and data binding | 20-25% | - Access data using Entity Framework - Apply MVVM pattern and data binding - Access cloud and local file system data - Consume REST services and JSON data |
| Implement feature detection for adaptive coding | 10-15% | - Handle different form factors and resolutions - Detect device capabilities and features - Implement adaptive code paths |
| Manage user input and custom user interactions | 10-15% | - Implement gestures and custom interactions - Integrate share contracts and app extensions - Support touch, mouse, keyboard, and pen input |
| Implement notifications, background tasks, and reusable components | 15-20% | - Implement toast, tile, and badge notifications - Implement app services and inter-app communication - Build reusable libraries and components - Create and schedule background tasks |
| Manage authentication and identity management | 10-15% | - Implement Microsoft Account and Azure AD authentication - Manage tokens and secure storage - Implement authorization and role-based access |
Microsoft specifies the following prerequisites for the Microsoft Developing Mobile Apps (70-357日本語版): Typically 2+ years of experience developing Windows apps with C# and XAML; familiarity with MVVM, Entity Framework, and authentication technologies; Visual Studio 2015+ recommended.
Confirm the authoritative details on the official certification page before you register.
As of the latest information, the passing score for the 70-357日本語 exam is 700 out of 1000 and the fee is $165 USD (varies by region). Microsoft sets both, so verify the current figures on the official site before scheduling.
Written and dependable. If you fail the corresponding exam within 60 days of purchase, send us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; verified claims are refunded in full within seven days. Exclusions: exams taken within three days of purchase, candidate names that differ from the payer, and free or expired products. Prefer to keep preparing? Exchange your product for two others of equal value at no charge.
The Microsoft Developing Mobile Apps (70-357日本語版) blueprint centers on these principal domains:
Further domains complete the official outline, and our question bank spans every one.
By understanding the constraint first: most of our candidates are office workers, so the 70-357日本語 bank is elaborately designed for efficiency — focused content with expert-verified answers across the Microsoft Developing Mobile Apps (70-357日本語版) objectives, no filler. Safety is engineered in too: payment runs through Credit Card, the world's reliable payment platform, safeguarding the transaction and protecting your interests, so you can buy without misgivings. And because an electronic product cannot be touched before purchase, a free trial download of real bank content lets you see it first — with 24/7 customer service agents ready for any contingency afterward.
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According to the latest exam information, the 70-357日本語 exam includes 40-60 questions and lasts 150 minutes minutes. Practicing under the same limit builds the pacing confidence you will want on the day.
Registration goes through the official channels below:
Book your test center or online session early, and let a fixed date organize your preparation.
質問のドラッグアンドドロップ
写真を撮るユニバーサルWindowsプラットフォーム(UWP)アプリを作成しています。
写真を撮るためにカメラの内蔵インターフェースを使用したい場合。
デバイスの内蔵カメラから画像をキャプチャする必要があります。
メソッドをどのように完了する必要がありますか?答えるには、適切なコードセグメントを正しい場所にドラッグします。各コードセグメントは、1回、複数回、またはまったく使用されません。コンテンツを表示するには、ペイン間で分割バーをドラッグするか、スクロールする必要がある場合があります。
Correct Answer:

ホットスポットの質問
写真を表示するアプリを開発しています。
ユーザーが写真の上にポインターを置いたときに情報テキストを表示するメソッドを作成する必要があります。
メソッドをどのように完了する必要がありますか?回答するには、回答領域の各リストから適切なコードセグメントを選択します。
次のメソッドを含むアプリがあります:
以下の各ステートメントについて、ステートメントが真の場合は「はい」を選択します。それ以外の場合は、「いいえ」を選択します。
Correct Answer:

ホットスポットの質問
会社の人事データベースのデータを処理および表示するユニバーサルWindowsプラットフォーム(UWP}アプリを開発している。
ユーザーは、UWPアプリのビューの1つの読み込みが遅いと報告しています。
ロード時間を最適化する必要があります。
関連するマークアップをどのように完了する必要がありますか?回答するには、回答領域の各リストから適切なマークアップセグメントを選択します。
Correct Answer:

質問のドラッグアンドドロップ
ユニバーサルWindowsプラットフォーム(UWP)アプリを開発しています。ユーザーは、画面に画像をドラッグアンドドロップして、友人と共有できます。
アプリにドラッグアンドドロップを実装する必要があります。ユーザーは、アプリが表示する青い四角形に画像をドロップできる必要があります。
関連するマークアップをどのように完了する必要がありますか?答えるには、適切なマークアップセグメントを正しいターゲットにドラッグします。各マークアップセグメントは、1回、複数回、またはまったく使用されません。コンテンツを表示するには、ペイン間で分割バーをドラッグするか、スクロールする必要がある場合があります。
Correct Answer:

ホットスポットの質問
ユニバーサルWindowsプラットフォーム(UWP)アプリを開発しています。
レスポンシブユーザーデザインパターンを実装する必要があります。
サポートされている技術は次のうちどれですか?回答するには、回答領域の各リストから適切なオプションを選択します。
Correct Answer:

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