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Snowflake COF-C03日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Loading & Unloading | 15% | - Data unloading and staging - File formats (JSON, CSV, Parquet, AVRO) - Bulk loading with COPY command - Data ingestion best practices - Continuous loading with Snowpipe |
| Topic 2: Cloud Platform Overview & Snowflake Key Concepts | 8% | - Snowflake editions and features - Snowflake architecture layers (storage, compute, services) - Virtual warehouse concepts and credit usage |
| Topic 3: Databases, Tables & Views | 18% | - Stored procedures and UDFs - Table types (permanent, transient, temporary) - Views (standard, materialized, secure) - Column types and sequences - Clustering and micro-partitions - Data manipulation (DML operations) |
| Topic 4: Data Sharing | 12% | - Private sharing vs. Data Exchange - Reader account management - Shares and reader accounts - Data listing marketplace |
| Topic 5: Performance Optimization & Monitoring | 4% | - Resource optimization techniques - Query history and monitoring - Query profiling and performance tuning |
| Topic 6: Semi-Structured Data | 10% | - Array and object operations - Parsing and flattening semi-structured data - VARIANT data type |
| Topic 7: Virtual Warehouses | 15% | - Multi-cluster warehouses - Cache concepts (warehouse, result, metadata) - Warehouse creation and configuration - Warehouse monitoring and troubleshooting - Warehouse sizing and scaling |
| Topic 8: Account Objects | 8% | - Warehouses, databases, and schemas hierarchy - Resource monitors - Organizations and accounts structure |
| Topic 9: Time Travel & Cloning | 10% | - Fail-safe concepts - Time travel concepts and retention - UNDROP and historical data access - Zero-copy cloning |
| Topic 10: Security & Access Control | 10% | - Governance best practices - Row-level and column-level security - Masking policies - Authorization (roles, privileges) - Authentication (SSO, MFA) |
Snowflake SnowPro® Core Certification (COF-C03日本語版) Sample Questions:
1. Snowflakeは、テーブルに保存されたデータの完全性と一貫性をどのように保証するのですか？
A) 行レベル暗号化
B) 制約
C) 動的データマスキング
D) タイムトラベル
2. クエリプロファイルには、大規模の仮想ウェアハウスで実行されたクエリのメトリックが表示されます。
クエリのパフォーマンスを向上させるには、どのような手順を踏めば良いでしょうか？(2つ選択してください。)
A) クエリのWHERE句を更新します。
B) 倉庫を最大化モードで実行します。
C) 倉庫のAUTO_SUSPEND期間を延長します。
D) WAREHOUSE_SIZEを増やします。
E) MAX_CLUSTER_COUNTを増やします。
3. テーブルから外部ステージにデータをアンロードするコマンドはどれですか？
A) COPY INTO <location>
B) GET
C) INSERT
D) PUT
4. ステージに保存されているファイルのファイル名を取得するには、どの関数を使用しますか？
A) GET_STAGE_LOCATION
B) ビルドステージファイルURL
C) GET_OBJECT_REFERENCES
D) GET_RELATIVE_PATH
5. Snowflakeの実務担当者は、半構造化データを繰り返しクエリするパイプラインのパフォーマンスを向上させたいと考えている。
このワークロードにおけるクエリパフォーマンスを向上させるには、どの機能が有効でしょうか？2つ選択してください。
A) 検索最適化サービス
B) 半構造化列に直接クラスタリングキーを配置
C) 実物大ビュー
D) マルチクラスタ仮想倉庫
E) クエリ高速化サービス
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A,D | Question # 3 Answer: A | Question # 4 Answer: D | Question # 5 Answer: A,C |
