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NEW QUESTION 281
What is a difference between structured data and semi-structured data?
A. Structured data has a fixed schema and semi-structured data has a flexible schema.
B. Only Structured data supports entities.
C. Structured data has a flexible schema and semi-structured data has a fixed schema.
D. Only Structured data supports attributes.
Whereas structured data requires a fixed schema defined in advance, semi-structured data does not require a prior schema definition. For this reason, it can constantly evolve – new attributes can be added at any time.
NEW QUESTION 282
A bank needs to ensure that after an account transfer transaction completes, the revised account balances persists even if the database system hosting the transaction becomes temporarily unavailable. Of which ACID semantic is this an example?
NEW QUESTION 283
Which statement is an example of Data Manipulation Language (DML)?
NEW QUESTION 284
Which language is used to define queries in Azure Synapse Data Explorer?
NEW QUESTION 285
Which Azure Cosmos DB API should you use for a graph database?
A. Azure Cosmos DB for Table
B. Azure Cosmos DB for Apache Cassandra
C. Azure Cosmos DB for NoSQL
D. Azure Cosmos DB for Apache Gremlin
NEW QUESTION 286
A bank needs to ensure that a transaction involving debiting funds from a source account and crediting the same funds to a destination account must complete both actions. If either action falls to complete, the other action must fail. Of which ACID semantic is this an example?
NEW QUESTION 287
Blob rehydration occurs in Azure Blob storage when a blob moves between which access tiers?
A. Hot to Cool
B. Hot to Archive
C. Cool to Archive
D. Archive to Cool
NEW QUESTION 288
Which activity is most common for transactional workloads?
A. recording small units of work events in real time
B. aggregating massive amounts of data
C. producing complex reports
D. performing self-service data exploration
NEW QUESTION 289
You have a banking application that transfers money in to and out of accounts. Of which type of solution is this is an example?
A. online transaction processing (OLTP)
B. online analytical processing (OLAP)
C. extract, transform and load (ETL)
D. a data warehouse
NEW QUESTION 290
SELECT, INSERT, and UPDATE are examples of which type of SQL statement?
A. Data Definition Language (DDL)
B. Data Control Language (DCL)
C. Data Manipulation Language (DML)
NEW QUESTION 291
In an analytical data model, which type of table contains entities that are used to aggregate numeric values, where each entity is represented by a row with a unique key value?
NEW QUESTION 292
In a fully denormalized database, how is data read and written for a single entity?
A. Data is read from a single table and written to a single table.
B. Data is read from multiple tables and written to a single table.
C. Data is read from a single table and written to multiple tables.
D. Data is read from multiple tables and written to multiple tables.
NEW QUESTION 295
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