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Snowflake COF-C03日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cloud Platform Overview & Snowflake Key Concepts | 8% | - Snowflake editions and features - Snowflake architecture layers (storage, compute, services) - Virtual warehouse concepts and credit usage |
| Topic 2: Time Travel & Cloning | 10% | - UNDROP and historical data access - Zero-copy cloning - Fail-safe concepts - Time travel concepts and retention |
| Topic 3: Databases, Tables & Views | 18% | - Column types and sequences - Table types (permanent, transient, temporary) - Clustering and micro-partitions - Data manipulation (DML operations) - Stored procedures and UDFs - Views (standard, materialized, secure) |
| Topic 4: Performance Optimization & Monitoring | 4% | - Query profiling and performance tuning - Resource optimization techniques - Query history and monitoring |
| Topic 5: Data Loading & Unloading | 15% | - Continuous loading with Snowpipe - Data unloading and staging - Data ingestion best practices - File formats (JSON, CSV, Parquet, AVRO) - Bulk loading with COPY command |
| Topic 6: Security & Access Control | 10% | - Masking policies - Governance best practices - Authentication (SSO, MFA) - Authorization (roles, privileges) - Row-level and column-level security |
| Topic 7: Virtual Warehouses | 15% | - Warehouse creation and configuration - Warehouse monitoring and troubleshooting - Warehouse sizing and scaling - Multi-cluster warehouses - Cache concepts (warehouse, result, metadata) |
| Topic 8: Account Objects | 8% | - Resource monitors - Organizations and accounts structure - Warehouses, databases, and schemas hierarchy |
| Topic 9: Semi-Structured Data | 10% | - VARIANT data type - Parsing and flattening semi-structured data - Array and object operations |
| Topic 10: Data Sharing | 12% | - Reader account management - Data listing marketplace - Private sharing vs. Data Exchange - Shares and reader accounts |
Snowflake SnowPro® Core Certification (COF-C03日本語版) Sample Questions:
Question 1
ある企業は、Snowflakeに接続するユーザーのログインセキュリティを強化するため、すべてのSnowflakeユーザーに対し、Snowflakeのデフォルトの多要素認証(MFA)サービスに自己登録することを強く推奨しています。
SnowflakeユーザーがMFAに接続するために、デバイスにインストールする必要があるアプリケーションは何ですか？
A. Okta Verify
B. Microsoft Authenticator
C. デュオモバイル
D. Google認証システム
Question 2
他の Snowflake アカウントと共有されるセキュア ビューを操作する場合、どの関数が NULL 値を返しますか？ 2 つ選択してください。
A. CURRENT_ACCOUNT_NAME()
B. CURRENT_SESSION()
C. CURRENT_ROLE()
D. CURRENT_USER()
E. CURRENT_REGION()
Question 3
ユーザーが追加のマルチクラスタを遅延なく再開できるようにしたい場合、仮想倉庫はどのように構成すべきでしょうか？
A. 倉庫を通常必要とされるサイズよりも大きく設定する
B. 最小クラスターと最大クラスターを自動スケーリングするように設定します
C. 経済倉庫のスケーリングポリシーを使用する
D. 標準の倉庫スケーリングポリシーを使用する
Question 4
次のうち、株式を正確に説明しているのはどれですか？
A. テーブル、セキュアビュー、セキュアUDFは共有できます
B. 株式は共有できます
C. データ利用者は共有から新しいテーブルを複製できます
D. 一度付与された共有へのアクセス権は取り消すことができません。
Question 5
次のうち、テーブルにクラスタリングキーを使用することが適切である可能性を示すものはどれですか？(2つ選択してください)。
A. テーブルにはカーディナリティが非常に低い列が含まれています
B. テーブルには少数のマイクロパーティションがあります
C. テーブルに対して発行される DML ステートメントはブロックされます
D. テーブルに対するクエリの実行速度が予想より遅い。
E. テーブルのクラスタリング深度が大きい
Solutions:
| Question 1 Answer: C | Question 2 Answer: C,D | Question 3 Answer: A | Question 4 Answer: A | Question 5 Answer: D,E |
