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| Section | Objectives |
|---|---|
| Topic 1: Delta Lake and Data Management | - Delta Lake transactions and ACID properties - Schema evolution and enforcement - Time travel and versioning |
| Topic 2: Production Pipelines and Orchestration | - Error handling and recovery strategies - Databricks Workflows - Job scheduling and monitoring |
| Topic 3: Databricks Lakehouse Platform Architecture | - Data governance concepts (Unity Catalog basics) - Medallion architecture (Bronze, Silver, Gold) - Workspace and cluster architecture |
| Topic 4: Data Ingestion and Processing | - ETL pipeline design patterns - Structured Streaming fundamentals - Batch and streaming ingestion with Auto Loader |
| Topic 5: Data Modeling and Transformation | - Dimensional modeling concepts - Spark SQL transformations - Performance optimization techniques |
ある企業では、タスクの最新ステータスを追跡するタスク管理システムを導入しています。このシステムはタスクイベントを入力として受け取り、Lakeflow Declarative Pipelines を使用してほぼリアルタイムでイベントを処理します。タスクが作成されるか、タスクステータスが変更されると、新しいタスクイベントがシステムに取り込まれます。Lakeflow Declarative Pipelines は、BI ユーザーがクエリを実行できるストリーミングテーブル (tasks_status) を提供します。
表はすべてのタスクの最新のステータスを表し、5 つの列が含まれます。
task_id(タスクごとに一意)
タスク名
タスクオーナー
タスクステータス
タスクイベント時間
テーブルでは、削除ベクトル、行追跡、変更データ フィード (CDF) の 3 つのプロパティが有効になります。
データ エンジニアは、静的ディメンション テーブル (従業員) から検索できる task_owner の部門を表す 1 つの列を追加することで、tasks_status テーブルをほぼリアルタイムで拡充するための新しい Lakeflow 宣言型パイプラインを作成するように求められています。
この強化はどのように実装する必要がありますか?
Correct Answer: D 🗳️
Explanation: Only visible for ValidDumps members. You can sign-up / login (it's free).
実稼働クラスターには 3 つのエグゼキュータ ノードがあり、ドライバーとエグゼキュータに同じ仮想マシン タイプを使用します。
このクラスターの Ganglia メトリックを評価する場合、ドライバー上で実行されるコードによって発生したボトルネックを示すインジケーターはどれですか?
Correct Answer: E 🗳️
Explanation: Only visible for ValidDumps members. You can sign-up / login (it's free).
プラットフォームチームリーダーは、各チームのSQL Warehouse利用状況のアトリビューションを自動化する責任を負います。要件は、個々のユーザーレベルでSQL Warehouseの利用状況を特定し、全事業部門のリーダーを含む経営チームと共有するための日次レポートを生成することです。プラットフォームリーダーは、どのようにすれば毎日共有可能な自動レポートを生成できるでしょうか?
Correct Answer: D 🗳️
Explanation: Only visible for ValidDumps members. You can sign-up / login (it's free).
現在アクティブなクラスター内のすべてのノードに、ノートブック レベルのスコープを持つ Python パッケージをインストールする方法は何ですか?
Correct Answer: D 🗳️
Explanation: Only visible for ValidDumps members. You can sign-up / login (it's free).
3 つのエグゼキュータ ノードを持つ特定のクラスターの Ganglia メトリックを評価する場合、VM のリソースが適切に使用されていることを示す指標はどれですか。
Correct Answer: D 🗳️
Explanation: Only visible for ValidDumps members. You can sign-up / login (it's free).
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