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Exam 1z0-070 topic 1 question 76 discussion

Actual exam question from Oracle's 1z0-070
Question #: 76
Topic #: 1
[All 1z0-070 Questions]

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?

  • A. An improved highly efficient undo and redo architecture
  • B. Faster optimization due to an Exadata-specific optimizer
  • C. Reduced I/O latency for writes due to writeback flashcache on all Exadata X5 and later models
  • D. Ultra high I/O performance for reads and writes when using Exadata Extreme Flash in X5 and later models
  • E. Reduced I/O latency for reads due to read flashcache on all Exadata X5 and later models
Show Suggested Answer Hide Answer
Suggested Answer: ACD 🗳️
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 thuthuysphn58 at April 4, 2025, 10:20 a.m.

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