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Snowflake COF-C03日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Sharing | 12% | - Private sharing vs. Data Exchange - Shares and reader accounts - Data listing marketplace - Reader account management |
| Cloud Platform Overview & Snowflake Key Concepts | 8% | - Snowflake architecture layers (storage, compute, services) - Snowflake editions and features - Virtual warehouse concepts and credit usage |
| Data Loading & Unloading | 15% | - File formats (JSON, CSV, Parquet, AVRO) - Data unloading and staging - Data ingestion best practices - Bulk loading with COPY command - Continuous loading with Snowpipe |
| Time Travel & Cloning | 10% | - UNDROP and historical data access - Fail-safe concepts - Zero-copy cloning - Time travel concepts and retention |
| Databases, Tables & Views | 18% | - Data manipulation (DML operations) - Stored procedures and UDFs - Table types (permanent, transient, temporary) - Clustering and micro-partitions - Column types and sequences - Views (standard, materialized, secure) |
| Account Objects | 8% | - Organizations and accounts structure - Resource monitors - Warehouses, databases, and schemas hierarchy |
| Security & Access Control | 10% | - Row-level and column-level security - Authentication (SSO, MFA) - Masking policies - Authorization (roles, privileges) - Governance best practices |
| Semi-Structured Data | 10% | - Array and object operations - Parsing and flattening semi-structured data - VARIANT data type |
| Performance Optimization & Monitoring | 4% | - Query profiling and performance tuning - Query history and monitoring - Resource optimization techniques |
| Virtual Warehouses | 15% | - Warehouse monitoring and troubleshooting - Warehouse sizing and scaling - Cache concepts (warehouse, result, metadata) - Multi-cluster warehouses - Warehouse creation and configuration |
Snowflake SnowPro® Core Certification (COF-C03日本語版) Sample Questions:
Question 1
クラウドサービス層に含まれるアクティビティはどれですか？(2つ選択してください)
A. インフラストラクチャ管理
B. データストレージ
C. 動的データマスキング
D. ユーザー認証
E. パーティションスキャン
Question 2
COPYコマンドを使用してSnowflakeからデータをアンロードする場合、デフォルトのファイルサイズはどれくらいですか？
A. 16 MB
B. 5 MB
C. 8GB
D. 32 MB
Question 3
copy into <table> コマンドを使用して Snowflake にデータを一括ロードする際にサポートされている変換手法はどれですか？(2つ選択してください)
A. 列の省略
B. 限られた数の行の選択
C. 列のグループ化
D. 列の集計
E. 列の並べ替え
Question 4
Snowflakeにデータをロードする際の推奨されるベストプラクティスは何ですか？
A. ロードする前に、テーブルのDATA_RETENTION_TIME_IN_DAYSを0に設定します。
B. 小さなファイルを大きなタイルに結合してからロードします。
C. ステージ内のファイルがすべて圧縮されているか、すべて非圧縮であることを確認してください。
D. 大きなファイルを1つ読み込む場合は、読み込む前に複数のファイルに分割します。
Question 5
半構造化データをリレーショナル表現に変換するために使用できる関数はどれですか？
A. 平らにする
B. 配列からオブジェクトへ
C. オブジェクトキー
D. PARSE_JSON
Solutions:
| Question 1 Answer: A,D | Question 2 Answer: A | Question 3 Answer: A,E | Question 4 Answer: D | Question 5 Answer: A |
