A University Intends to Use Amazon Kinesis Data Firehose to Collect

question 101

Multiple Choice

A university intends to use Amazon Kinesis Data Firehose to collect JSON-formatted batches of water quality readings in Amazon S3. The readings are from 50 sensors scattered across a local lake. Students will query the stored data using Amazon Athena to observe changes in a captured metric over time, such as water temperature or acidity. Interest has grown in the study, prompting the university to reconsider how data will be stored. Which data format and partitioning choices will MOST significantly reduce costs? (Choose two.)

• A) Store the data in Apache Avro format using Snappy compression.
• B) Partition the data by year, month, and day.
• C) Store the data in Apache ORC format using no compression.
• D) Store the data in Apache Parquet format using Snappy compression.
• E) Partition the data by sensor, year, month, and day.

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Definitions:

Fair Value Option

The Fair Value Option is an accounting option that allows companies to measure selected financial assets and liabilities at fair value, aiming to provide more relevant financial information.

Market Value

The current price at which an asset or service can be bought or sold in the marketplace.

IFRS

International Financial Reporting Standards; a set of accounting standards developed by the International Accounting Standards Board (IASB) that is becoming the global standard for the preparation of public company financial statements.

Equity Method Investments

An accounting technique used to assess the profits earned through an investment in another company, incorporating these profits into the investing company's income statements.