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Snowflake COF-C03日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security & Access Control | 10% | - Authorization (roles, privileges) - Masking policies - Governance best practices - Authentication (SSO, MFA) - Row-level and column-level security |
| Topic 2: Semi-Structured Data | 10% | - VARIANT data type - Array and object operations - Parsing and flattening semi-structured data |
| Topic 3: Virtual Warehouses | 15% | - Warehouse sizing and scaling - Cache concepts (warehouse, result, metadata) - Warehouse creation and configuration - Warehouse monitoring and troubleshooting - Multi-cluster warehouses |
| Topic 4: Data Sharing | 12% | - Shares and reader accounts - Data listing marketplace - Private sharing vs. Data Exchange - Reader account management |
| Topic 5: Cloud Platform Overview & Snowflake Key Concepts | 8% | - Snowflake architecture layers (storage, compute, services) - Virtual warehouse concepts and credit usage - Snowflake editions and features |
| Topic 6: Account Objects | 8% | - Warehouses, databases, and schemas hierarchy - Organizations and accounts structure - Resource monitors |
| Topic 7: Databases, Tables & Views | 18% | - Stored procedures and UDFs - Table types (permanent, transient, temporary) - Views (standard, materialized, secure) - Data manipulation (DML operations) - Column types and sequences - Clustering and micro-partitions |
| Topic 8: Performance Optimization & Monitoring | 4% | - Query history and monitoring - Resource optimization techniques - Query profiling and performance tuning |
| Topic 9: Time Travel & Cloning | 10% | - Fail-safe concepts - Zero-copy cloning - UNDROP and historical data access - Time travel concepts and retention |
| Topic 10: Data Loading & Unloading | 15% | - Continuous loading with Snowpipe - File formats (JSON, CSV, Parquet, AVRO) - Bulk loading with COPY command - Data ingestion best practices - Data unloading and staging |
Snowflake SnowPro® Core Certification (COF-C03日本語版) Sample Questions:
1. どのSnowflakeエディションが、専用のメタデータストアと、他のSnowflake顧客がアクセスできない独立したコンピューティングクラスタをサポートしていますか？
A) ビジネス上重要な
B) 企業
C) 標準
D) 仮想プライベートスノーフレーク、またはVPS
2. テーブルに関する最も詳細なストレージ情報を提供するビューまたはコマンドはどれですか？
A) ACCOUNT_USAGE.STORAGE_USAGE
B) ACCOUNT_USAGE.TABLE_STORAGE_METRICS
C) 表を表示
D) 説明表
3. 仮想ウェアハウス上で実行待ちのクエリ数を最小限に抑えるには、どの手順を踏むのが良いでしょうか？
A) AUTO_SUSPEND パラメータの値を増やします。
B) MAX_CLUSTER_COUNT の値を増やします。
C) WAREHOUSE_SIZEを増やします。
D) WAIT_FOR_COMPLETION パラメータを FALSE に設定します。
4. Snowflake のプラクティショナーは、SALES_DB というデータベースを管理しています。このデータベースには、PUBLIC スキーマと、頻繁に更新される ORDERS テーブルがあります。データベースのデータ保持期間は 7 日です。2025 年 11 月 16 日午後 3 時、プラクティショナーは誤って DELETE コマンドを実行し、ORDERS テーブルからすべてのレコードを削除してしまいました。削除されたすべてのレコードを復元するには、どのステートメントを使用しますか？
A) CREATE TABLE orders_restored CLONE orders BEFORE (TIMESTAMP = > ' 2025-11-16 15:00:00' ::TIMESTAMP);
B) CREATE TABLE orders_restored CLONE orders AT (TIMESTAMP = > ' 2025-11-16 10:00:00 ' ::TIMESTAMP);
C) CREATE TABLE orders_restored CLONE orders AT (TIMESTAMP = > ' 2025-11-16 15:00:00 ' ::TIMESTAMP);
D) CREATE TABLE orders_restored CLONE orders BEFORE (OFFSET = > -60*5);
5. クエリ高速化サービスでサポートされているコマンドはどれですか？(2つ選択してください。)
A) マージ
B) 挿入
C) アップデート
D) 選択
E) 削除
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: B | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: A,B |
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