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IBM PureData System for Transactions Technical Mastery Test v1 Questions and Answers

Question 1

Using a date column as a distribution key may distribute rows evenly across dataslices, why is this a poor choice of a distribution key?

Options:

A.

Queries on the table will invoke compression.

B.

Queries on date range may involve processing skew.

C.

Queries on date range will utilize only host processing.

D.

Queries on the table will invoke compression on the date columns.

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Question 2

The PureData System for Analytics implements which level of transaction isolation?

Options:

A.

Serializable

B.

Committed read

C.

Repeatable read

D.

Uncommitted read

Question 3

Which statement is true?

Options:

A.

All user space is available for database expansion.

B.

Each database is assigned it's own section of disk space.

C.

When creating the database you can specify which disks to use.

D.

When you create a database you can set the maximum space it is allowed to use.