Download Databricks : Databricks-Certified-Data-Engineer-Professional日本語 Questions & Answers as PDF & Test Software
Updated: Jun 08, 2026
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Databricks Certified Data Engineer Professional Exam (Databricks-Certified-Data-Engineer-Professional日本語版) Sample Questions:
1. データエンジニアリングチームは、DatabricksアセットバンドルとGitプロバイダーのCI/CD機能を用いて統合テストを自動化するGitプロジェクトを構築しています。パイプラインへの変更を含むプルが送信されたら、データパイプラインをテストするためのジョブを実行する必要があります。このタスクにおいて、GitプロバイダーのCI/CD自動化から実行すべき正しいDatabricksバンドルコマンドシーケンスは何ですか？
A) 初期化、デプロイ、実行、検証
B) 初期化、検証、デプロイ、実行
C) デプロイ、実行、検証
D) 検証、デプロイ、実行
2. ジュニアデータエンジニアの1人が、DataFrame dfを用いたグループ化された集計機能を備えたストリーミングデータパイプラインの開発を依頼されました。このパイプラインでは、重複しない5分間隔ごとに平均湿度と平均気温を計算する必要があります。イベントはデバイスごとに1分ごとに記録されます。
ストリーミング DataFrame df には次のスキーマがあります。
「device_id INT、event_time TIMESTAMP、temp FLOAT、humidity FLOAT」
コードブロック:
このタスクを完了するには、コード ブロック内の空白を正しく埋める応答を選択してください。
A) lag("event_time", "10 minutes").alias("time")
B) to_interval("event_time", "5 minutes").alias("time")
C) window("event_time", "10 minutes").alias("time")
D) "event_time"
E) window("event_time", "5 minutes").alias("time")
3. PySpark の ETL コードに DataFrame 変換を使用するモジュール式でテスト可能な方法を示すアプローチはどれですか?
A) 
B) 
C) 
D) 
4. デルタ レイクとレイクハウスについて正しいのは次のうちどれですか?
A) Lakehouse 内のビューは、常にソース テーブルの最新バージョンの有効なキャッシュを維持します。
B) Z オーダーは Delta Lake テーブルに格納されている数値にのみ適用できます。
C) Delta Lake は、クエリ フィルターに基づいてデータのスキップに活用される各テーブルの最初の 32 列の統計を自動的に収集します。
D) 主キー制約と外部キー制約を利用すると、ディメンション テーブルに重複する値が入力されないようにすることができます。
E) Parquet はデータを行ごとに圧縮するため、文字列は文字が複数回繰り返される場合にのみ圧縮されます。
5. 統合テストについて説明している記述はどれですか?
A) アプリケーションのサブシステム間の相互作用を検証します
B) 自動テストフレームワークが必要です
C) アプリケーションのユースケースを検証する
D) アプリケーションの個々の要素の動作を検証します
E) 手動介入が必要
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: E | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: A |
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