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Oracle Exadata Database Machine X8M Implementation Essentials - 1z1-902 Exam Questions

QUESTION NO: 1
Which two sections of the AWR report shows statistics for X9M Persistent Memory Cache?

A. PMEM Cache section within Memory Statistics B. PMEM Cache section within Exadata Smart Statistics C. cell PMEM cache Read Hits in the Database IOs portion of the Performance Summary D. PMEM Pool Misses in the Exadata Outlier Summary E. PMEM Pool cache Read Hits in the Cache Sizes portion of the Report Summary

Correct Answer: B,C

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QUESTION NO: 2
What is the minimum Exadata System Software version required for Exadata X9M?

A. 19.3.0.0.0 B. 20.1.1.0.0 C. 18.1.3.0.0 D. 19.2.1 0.0 E. 21.3.0.0.0 F. 21.2.0.0.0

Correct Answer: F

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QUESTION NO: 3
An Exadata X9M-2 Elastic Rack with 4 Database Servers and 8 HC Storage Servers and 3-phase 24kVA PDUs is being installed in a Data Center. However, the Data Center is only providing enough power for a single cable from each PDU. Which statement is correct?

A. The power cables from the servers to the PDUs can be rearranged inside the rack following OECA guidance to utilize a single PDU power cable. B. The installation can go ahead, no change is required. C. The installation cannot proceed until two power feeds are available per PDU. D. A splitter cable can be used to provide power to all PDU cables.

Correct Answer: C

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QUESTION NO: 4
Which of the following is NOT a requirement when validating, receiving, unpacking, and planning access route and space requirements for Exadata Database Machine?

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

Correct Answer: E

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QUESTION NO: 5
Which two steps concise the path used to communicate with Enterprise Manager from an Exadata Database Machine?

A. SNMP traps for alerts are sent by the storage server MS process to the Enterprise Manager agent. B. SNM? traps for alerts are sent by the storage server ILOM to the Enterprise Manager agent. C. SNMP traps for alerts are sent by the storage server ILOM to the storage server MS process. D. SNMP traps for alerts are sent by the storage server MS process to the storage server ILOM. E. SNMP traps for alerts are sent by the storage server ILOM to the storage server is process. F. SNMP traps for alerts are sent by the storage server RS process to the storage server ILOM. G. SNMP traps for alerts are sent by the storage server RS process to the Enterprise Manager agent.

Correct Answer: A,B

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QUESTION NO: 6
Which are two correct statements about backing up Exadata Database Machine?

A. For high availability, system area can be on the first two disks and M.2 devices. B. The M.2 disk is hot pluggable and can be replaced when the power is on, but you will have to restore the system data manually. C. Use a snapshot-based backup of an Oracle Exadata Database Machine database server software. D. Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server. E. Backing up Exadata Storage Server Software is critical for restoration.

Correct Answer: D,E

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QUESTION NO: 7
Which statement is true about the Persistent Memory Commit Accelerator?

A. Persistent Memory Commit Accelerator contains logging information from all tiers of the software stack for rapid triage and diagnostics. B. Persistent Memory Commit Accelerator helps to further reduce redo log write latency by using Persistent Memory and Remote Direct Memory Access (RDMA). C. Persistent Memory Commit Accelerator tracks changes to Persistent Memory Data Accelerator to ensure duplicate blocks are not written to Flash. D. Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk. E. Persistent Memory Commit Accelerator copies redo log data from disk for faster redo apply on Data Guard Standby Databases.

Correct Answer: B

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QUESTION NO: 8
You want to examine how much Smart Scan activity is occurring.
Which two would provide the information you require?

A. the number of serial queries that accessed the table B. the number of Smart Scans performed for the table on all the storage servers, as shown when performing a list ACTIVEREQUEST command using EXACLI on all the cells C. the number of Smart Scans performed for the table on all the storage servers, as shown when performing a list activerequest command using CELLCLI on all the cells D. the number of full table scans that accessed the table E. the number of parallel queries that accessed the table

Correct Answer: B,C

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QUESTION NO: 9
You have configured a multirack Database Machine with two X9M-8 full racks all in a single cluster and storage grid comprising a total of 4 X9M-8 Database servers and 28 X9M-8 Storage servers.
Which two options are true regarding the servers on which Enterprise Manager agents must be deployed in order to monitor all components of this multirack configuration?

A. on all database servers in both racks and one storage server in each rack B. on all database servers in the first rack C. on only one database server in both racks D. on all database servers in the second rack E. on at least two storage servers in both racks F. on all storage servers in both racks G. on all database servers and at least two storage servers in both racks

Correct Answer: E,G

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