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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q13-Q18):

NEW QUESTION # 13
You use Enterprise Manager to monitor all the components of your Exadata Database Machine.
Recently, you discovered that certain asmdisks were offline in one of the diskgroups used by the rac database called prod.
In which two sources would you find diagnostic messages related to this problem?

  • A. Enterprise Manager Alerts on the Exadata Storage Server Grid home page
  • B. alert logs for the prod database instances
  • C. alert logs for the ASM instances
  • D. alert logs for Enterprise Manager
  • E. Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances

Answer: B,C Explanation:
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources, you can find diagnostic messages related to this problem in the alert logs for the ASM instances and the alert logs for the prod database instances. The alert logs for the ASM instances will provide information related to the offline asm disks, while the alert logs for the prod database instances will provide information related to whether the prod database instances are connected to the ASM instance or not.
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/sagug/exadata-administering-asm.html
NEW QUESTION # 14
Which of the following is NOT a requirement when validating, receiving, unpacking, and planning access route and space requirements for Exadata Database Machine?

  • A. The incline of any access route ramp must be less than or equal to 6 degrees.
  • B. A conditioned space is required to remove the packaging material to reduce particles before entering the data center.
  • C. Oracle Exadata Rack may only be installed on raised floor environments.
  • D. The entire access route to the installation site should be free of raised-pattern flooring that can cause vibration.
  • E. All four leveling and stabilizing feet should be raised and out of the way prior to moving the rack.
  • F. 914mm of space required above the rack height is required for maintenance access.

Answer: B
NEW QUESTION # 15
Which two statements are true about Auto Service Request (ASR) with an Exadata Database Machine?

  • A. Configuring ASR is mandatory for all Database Machine assets.
  • B. ASR communicates with Oracle support services using HTTPS.
  • C. ASR Manager opens a service request (SR) automatically after sensors detect hardware faults.
  • D. ASR can upload configuration metadata to support problem resolution.
  • E. ASR Manager must be installed and configured on one of the database servers.
  • F. ASR Manager must be installed and configured on a dedicated server external to the Database Machine.

Answer: C,D Explanation:
1. ASR can upload configuration metadata to support problem resolution1.
2. ASR Manager opens a service request (SR) automatically after sensors detect hardware faults1
https://docs.oracle.com/cd/E37710_01/doc.41/e23333/toc.htm
NEW QUESTION # 16
Which two statements are true about enabling write-back flash cache?

  • A. Write-back flash cache is on by default for High Capacity Storage Servers in High Redundancy configurations.
  • B. When enabling write-back flash cache in a rolling manner, DBCLI should be used to inactivate the grid disks on all cells first.
  • C. When enabling write-back flash cache in a non-rolling manner, you need to drop the Persistent Memory Commit Accelerator (PMEMLog) first.
  • D. Write-back Flash Cache cannot be used on Extreme Flash Storage Servers.
  • E. Before write-back flash cache is enabled, you need to drop the Flash Cache first.

Answer: B,C Explanation:
When enabling write-back flash cache in a rolling manner, it is important to use DBCLI to inactivate the grid disks on all cells first so that all the cells are in the same state before the process is started. In a non-rolling manner, you must drop the Persistent Memory Commit Accelerator (PMEMLog) first. Write-back flash cache is not on by default for High Capacity Storage Servers in High Redundancy configurations and can be used on Extreme Flash Storage Servers. It's also important to check if it's necessary to drop the flash cache before enabling write-back flash cache.
NEW QUESTION # 17
You have been notified by your Network Administrator that an upstream switch has been replaced due to a hardware fault. Which command verifies that the client network on your Exadata X9M-2 Database Server is available via both client switches?

  • A. /opt/oracle.SupportTools/ibdiagtools/checkbadlinks.p1 -all
  • B. cat /proc/net/bonding/bondeth0
  • C. netstat -rn
  • D. ifconfig -a legrep "re0| re1"

Answer: A
NEW QUESTION # 18
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