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Vendor: Oracle
Certifications: Oracle Engineered Systems
Exam Name: Oracle Exadata Database Machine and Cloud Service 2017 Implementation Essentials
Exam Code: 1z0-338
Total Questions: 72

♥ 2018 Valid 1z0-338 Exam Questions ♥

1z0-338 exam questions, 1z0-338 PDF dumps; 1z0-338 exam dumps:: https://www.dumpsschool.com/1z0-338-exam-dumps.html (72 Q&A) (New Questions Are 100% Available! Also Free Practice Test Software!)

Latest and Most Accurate Oracle 1z0-338 Dumps Exam Questions and Answers:

Question: 21

You are concerned about how to recover from a failed Exadata Storage Server. What is the best way to recover from a storage cell failure when content in both system disks is lost?

A. Database Machine Administrators should be prepared by creating a backup using dbserver_backup.sh.
B. Database Machine Administrators should be prepared by creating a backup to an NFS file location as described in the owners guide.
C. Any USB can be plugged in to create a backup.
D. Be sure that you have a backup by running make_cellboot_usb.sh in /opt/oracle.cellos.
E. Use the Exadata Storage Server rescue functionality that Is provided on the CELLBOOT USB flash drive.
F. Re-imaging the cell is the only option.

Answer: E

Explanation:
Recovering Storage Cells from Loss of a System Volume Using CELLBOOT Rescue
Problem
You have either corrupted your system volume images or suffered from simultaneous loss of the first two disk drives in your Exadata storage cell, and you wish to use the internal CELLBOOT USB drive to recover from failure.
Solution
At a high level, these are the steps you should take:
A. Understand the scope of the failure
B. Contact Oracle Support and open a Service Request
C. Boot your system from the internal CELLBOOT USB image
D. Recover your storage cell using the cell rescue procedure
E. Perform post-recovery steps and validation

Question: 22

You are measuring the I/O savings provided by storage indexes for Table
A. One of your scripts displays the I/O savings as a result of the storage indexes. Which two statements are true?
SQL> select count (*) from transmap.mymap_comp
2 where map_id between 400 and 500;
COUNT(*)
—————————————
103000
Elapsed: 00:00:00.08
SQL> select b.name, a.value/1024/1024 value
from vSmystat a, vSstatname b,
where b.statistic# = a.statistic#
and b.nafne in (•cell physical IO bytes eligible for predicate offload’,
•cell physical IO interconnect bytes’,
•cell physical IO bytes saved by storage index’,
•cell physical IO interconnect bytes returned by smart scan’) order by 1;
Statistic Value (MB)
——————————————————————————————— —————–
cell physical IO bytes eligible for predicate offload 2,255 .09
cell physical IO bytes saved by storage index .00
cell physical IO interconnect bytes 1.72
cell physical IO interconnect bytes returned by smart scan 1.68

A. The storage indexes were disabled using the disable_storage_INDEX Parameter.
B. Storage Index data is not on the Cell Server’s region index memory structures yet because this predicate has not been used.
C. Since the database was started, no quires were run against this table with the same predicate.
D. The storage indexes reduced the amount of physical I/O bytes significantly for this query.

Answer: BC

Question: 23

A customer has three databases named CC. FIN, and DW. The CC database is for their CallCenter. Even a slight decrease in the response time of the database would mean more people “on hold” in their data center. The orders received through the CallCenter are stored in the Finance (FIN) database. Both databases, CC and FIN, serve as sources for the Data Warehouse (DW) database. All databases use the same Automatic Storage Management (ASM) diskgroup and therefore, the same physical disks on Exadata storage. The customer wants to dynamically control the resources that are available for the CallCenter database because this has direct impact on their operations?
Which option should be implemented?

A. DBRM on the CC database
B. DBRM on all the databases
C. IORM, because DBRM cannot be changed for an existing session
D. IORM and DBRM

Answer: B

Question: 24

Consider the following software changes that are performed manually on a Linux server:
1. Changes for Linux kernel firewall configuration
2. Changes for custom performance monitoring tools
3. Changes for security scan tools
4. Changes for Linux system performance optimization
Which of the software changes listed are permitted on Exadata Storage Servers?

A. 1, 2, 3, and 4
B. only 3 ‘
C. none
D. only 2
E. only 1 and 2
F. only 2 and 3

Answer: C

Explanation:
1: The Storage Server Patch is responsible for keeping our cell nodes always up-to-date, fixing possible problems, and this patch includes different component patches, like kernel patches, firmware, operation system, etc… for the Storage Server.
Incorrect:
3,4: security scan tools changes and Linux system performance optimization changes would be on the database server.

Question: 25

Which two statements are true about enabling write-back flash cache?

A. When enabling write-back flash cache in a non rolling manner, it is important to ensure that asmdeactivatonoutcome is set to YES and asmModestatus is set to ONLINE for all grid disks.
B. Before using write-back flash cache, you need to verify the minimum required versions.
C. Before write back-flash cache is enabled, you need to drop the Flash Cache first.
D. The setting flashCacheMode should be set to writeback by updating cellinit.ora and restarting cellsrv.
E. When enabling write-back flash cache in a rolling manner, dcli should be used to inactivate the grid disks on all cells first.

Answer: B, C

Explanation:
B: Exadata storage version 11.2.3.2.1 is the minimum version required to use this write back flash cache option.
C: Steps for Enabling Write back flash cache:
First of all, you don’t need the stop CRS or database (This is ROLLING method) ,you can do it cell by cell.
* drop flashcache
* Be sure asmdeactivationoutcome is YES is before disabling grid disk

Question: 26

Consider the following setup:
User A1 belongs to resource group High on Database A.
User B2 belongs to resource group Low on Database B.
User C3 is a user on Database C without any DBRM setup.
DBRM setup:
Database A: Resource group High gets 80% and Low gets 20%.
Database B: Resource group High gets 60% and Low gets 40%.
IORM setup:
Database A: Share=20, limit=5
Database B: Share=30, limit=10
Database C: 5 shares
Total number of shares in the IORM setup = 100
What percent of I/O will each database user theoretically be using when the Exadata storage unit I/O throughout is used 100% and no other databases but A, B, and C are running?

A. Al = 36%, B2=18%, and C3=9%
B. Al = 33%, B2=33%, and C3=33%
C. AI = 10%, B2=5%, and C3=20%
D. Al = 8%, B2=12%, and C3=5%
E. Al = 5%, B2=10%, and C3=85%

Answer: E

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