Oracle Database Administration from Zero to Hero - Using Table Compression (Part 1 of 2)

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Information Technology (IT), Architecture
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the three types of table compression mentioned in the lecture?
Basic, Advanced, and Columnar
Row, Column, and Hybrid
Basic, Intermediate, and Advanced
Simple, Complex, and Hybrid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does basic compression reduce storage space?
By removing unused columns
By encrypting data
By de-duplicating repeated values
By compressing all data equally
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which scenario is basic compression most effective?
With tables that have a lot of unique values
With tables that use regular DML statements
With tables that are read-only and loaded in bulk
With tables that are frequently updated
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key benefit of using direct path loading?
It supports transactional databases
It compresses data more effectively
It bypasses the buffer cache for efficiency
It allows for real-time data updates
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which keyword is optional when enabling basic compression in a CREATE TABLE statement?
COMPRESS
ROW STORE
BASIC
APPEND
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you disable compression for future inserts in a table?
Change the table's primary key
Use the statement ALTER TABLE COMPRESS OFF
Use the statement ALTER TABLE NO COMPRESS
Delete all existing rows
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to existing rows when the compression attribute of a table is changed?
They are automatically compressed
They remain uncompressed
They are deleted
They are moved to a new table
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