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Snowflake COF-C03日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Time Travel & Cloning | 10% | - Fail-safe concepts - Zero-copy cloning - UNDROP and historical data access - Time travel concepts and retention |
| Semi-Structured Data | 10% | - VARIANT data type - Array and object operations - Parsing and flattening semi-structured data |
| Account Objects | 8% | - Resource monitors - Warehouses, databases, and schemas hierarchy - Organizations and accounts structure |
| Databases, Tables & Views | 18% | - Column types and sequences - Views (standard, materialized, secure) - Clustering and micro-partitions - Data manipulation (DML operations) - Table types (permanent, transient, temporary) - Stored procedures and UDFs |
| Data Loading & Unloading | 15% | - File formats (JSON, CSV, Parquet, AVRO) - Data unloading and staging - Data ingestion best practices - Continuous loading with Snowpipe - Bulk loading with COPY command |
| Virtual Warehouses | 15% | - Warehouse monitoring and troubleshooting - Warehouse creation and configuration - Warehouse sizing and scaling - Multi-cluster warehouses - Cache concepts (warehouse, result, metadata) |
| Cloud Platform Overview & Snowflake Key Concepts | 8% | - Snowflake architecture layers (storage, compute, services) - Virtual warehouse concepts and credit usage - Snowflake editions and features |
| Data Sharing | 12% | - Private sharing vs. Data Exchange - Data listing marketplace - Shares and reader accounts - Reader account management |
| Security & Access Control | 10% | - Authorization (roles, privileges) - Row-level and column-level security - Governance best practices - Authentication (SSO, MFA) - Masking policies |
| Performance Optimization & Monitoring | 4% | - Query history and monitoring - Resource optimization techniques - Query profiling and performance tuning |
Snowflake SnowPro® Core Certification (COF-C03日本語版) Sample Questions:
Question 1
企業のセキュリティ監査では、過去90日間のすべてのSnowflakeログイン(日付とユーザーなど)を一覧表示するレポートを作成する必要があります。次のステートメントのうち、必要な情報を返すのはどれですか?
A. SELECT LAST_SUCCESS_LOGIN, LOGIN_NAME FROM ACCOUNT_USAGE.USERS;
B. SELECT EVENT_TIMESTAMP, USER_NAMEFROM table(information_schema.
login_history_by_user())
C. SELECT EVENT_TIMESTAMP, USER_NAME FROM ACCOUNT_USAGE.LOGIN_HISTORY;
D. SELECT EVENT_TIMESTAMP, USER_NAME FROM ACCOUNT_USAGE.ACCESS_HISTORY;
Question 2
あるユーザーが、5分ごとにクラウドストレージに新しいタイルを書き込むアプリケーションを使用している。
Snowflakeにファイルを取り込む最も効率的な方法は何でしょうか?
A. GET操作を実行して新しいファイルを断続的にチェックするタスクを作成します。
B. タイルロケーションでクラウドプロバイダー通知を設定し、自動取り込みで Snowpipe を使用します
C. ファイルを内部ステージに配置し、データ読み込みウィザードを自動化するタスクを作成します。
D. 5分ごとに外部ステージからコピーを実行するタスクを作成します。
Question 3
入力値を日付に変換できない場合に、エラーを発生させる代わりにNULL値を返すステートメントはどれですか?
A. SELECT TRY_TO_DATE(START_DATE) FROM TABLE_A;
B. SELECT START_DATE::DATE FROM TABLE_A;
C. SELECT TO_DATE(START_DATE) FROM TABLE_A;
D. SELECT DATE(START_DATE) FROM TABLE_A;
Question 4
Snowflakeでシステム定義ロールであるACCOUNTADMINを使用する際のベストプラクティスに関する推奨事項は何ですか?(2つ選択してください。)
A. ACCOUNTADMIN ロールは 1 人のユーザーにのみ付与する必要があります。
B. ACCOUNTADMIN ロールが付与されているすべてのユーザーには、SECURITYADMIN ロールも付与されている必要があります。
C. すべてのアカウント管理者ロールが多要素認証 (MFA) を使用していることを確認してください。
D. ACCOUNTADMIN ロールを少なくとも 2 人のユーザーに割り当てますが、できるだけ少ないユーザーに割り当ててください。
E. ACCOUNTADMIN ロールが付与されたすべてのユーザーは、ACCOUNTADMIN ロールによって所有されている必要があります。
Question 5
Snowpipeで実行/呼び出しできるのは次のうちどれですか?
A. 単一の copy_into ステートメント
B. 単一の insert__into ステートメント
C. ストアドプロシージャ
D. ユーザー定義関数 (UDF)
Solutions:
| Question 1 Answer: C | Question 2 Answer: B | Question 3 Answer: A | Question 4 Answer: C,D | Question 5 Answer: A |



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