Oracle Exam 1Z0-070 Topic 6 Question 21 Discussion

Actual exam question for Oracle's 1Z0-070 exam

Question #: 21
Topic #: 6

You plan to migrate a database supporting an OLTP workload to your new X5 Database Machine.

The current database instance supports a large number of short duration sessions and a very high volume of short transactions.

Which three X5 Database Machine features can improve performance for this type of workload?

AAn improved highly efficient undo and redo architecture

BFaster optimization due to an Exadata-specific optimizer

CReduced I/O latency for writes due to writeback flashcache on all Exadata X5 and later models

DUltra high I/O performance for reads and writes when using Exadata Extreme Flash in X5 and later models

EReduced I/O latency for reads due to read flashcache on all Exadata X5 and later models

Show Suggested Answer

Suggested Answer: A, C, D

A: To further accelerate OLTP workloads, the Exadata Smart Flash Cache also implements a special algorithm to reduce the latency of log write I/Os called Exadata Smart Flash Logging.

C: Use the Write-Back Flash Cache feature to leverage the Exadata Flash hardware and make Exadata Database Machine a faster system for Oracle Database Deployments.

D: Exadata X5-2 introduces Extreme Flash Storage Servers. Each Extreme Flash storage server contains eight 1.6 TB state-of-the-art PCI Flash drives. PCI flash delivers ultra-high performance by placing flash memory directly on the high speed PCI bus rather than behind slow disk controllers and directors.

References:

http://www.oracle.com/technetwork/database/exadata/exadata-x5-2-ds-2406241.pdf

http://www.oracle.com/technetwork/articles/database/exadata-write-back-flash-2179184.html

by Jovita at May 08, 2022, 08:46 PM

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