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Snowflake COF-C03日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Databases, Tables & Views | 18% | - Column types and sequences - Data manipulation (DML operations) - Stored procedures and UDFs - Table types (permanent, transient, temporary) - Clustering and micro-partitions - Views (standard, materialized, secure) |
| Cloud Platform Overview & Snowflake Key Concepts | 8% | - Snowflake editions and features - Virtual warehouse concepts and credit usage - Snowflake architecture layers (storage, compute, services) |
| Account Objects | 8% | - Resource monitors - Warehouses, databases, and schemas hierarchy - Organizations and accounts structure |
| Virtual Warehouses | 15% | - Cache concepts (warehouse, result, metadata) - Warehouse monitoring and troubleshooting - Warehouse sizing and scaling - Warehouse creation and configuration - Multi-cluster warehouses |
| Data Sharing | 12% | - Shares and reader accounts - Data listing marketplace - Private sharing vs. Data Exchange - Reader account management |
| Security & Access Control | 10% | - Authentication (SSO, MFA) - Row-level and column-level security - 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 history and monitoring - Resource optimization techniques - Query profiling and performance tuning |
| Time Travel & Cloning | 10% | - Time travel concepts and retention - Fail-safe concepts - UNDROP and historical data access - Zero-copy cloning |
| Data Loading & Unloading | 15% | - Data ingestion best practices - File formats (JSON, CSV, Parquet, AVRO) - Continuous loading with Snowpipe - Data unloading and staging - Bulk loading with COPY command |
Snowflake SnowPro® Core Certification (COF-C03日本語版) Sample Questions:
Question #1
FLATTEN関数のLATERAL修飾子は何をしますか？
A. フラット化されたデータのパスを抽出します
B. フラット化されたデータの値をキャストします
C. フラット化されたデータ内の繰り返し要素の単一インスタンスを取得します
D. オブジェクト外の情報をフラット化されたデータと結合します
Question #2
データ取り込みが成功した後、Snowflakeステージからステージングされたファイルを削除するために使用するコマンドはどれですか？
A. 切り捨て
B. 削除
C. ドロップ
D. 削除
Question #3
COPY INTO <location>コマンドを使用してSnowflakeからCSVデータをアンロードする際、デフォルトのフォーマットタイプCOMPRESSIONオプションは何ですか？
A. なし
B. 空気を抜く
C. 自動
D. GZIP
Question #4
COPY INTO <場所> コマンドのオプションのうち、生成されるファイルの数に影響を与えるものはどれですか？2つ選択してください。
A. シングル
B. INCLUDE_QUERY_ID
C. レコード区切り文字
D. MAX_FILE_SIZE
E. 詳細出力
Question #5
ファイル内のメタデータが期限切れになっている場合に、ステージングされたファイルからデータをロードするために使用できる COPY INTO <テーブル> オプションはどれですか？(2つ選択してください)
A. FORCE
B. PURGE
C. LOAD_EXPIRED_FILES
D. ENFORCE_LENGTH
E. LOAD_UNCERTAIN_FILES
Solutions:
| Question #1 Correct Answer: D | Question #2 Correct Answer: B | Question #3 Correct Answer: D | Question #4 Correct Answer: A,D | Question #5 Correct Answer: B,E |
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