Question 1

Which two options describe the flash memory capabilities of the Exadata X9M-2 database and storage severs?

Options :

A : 4 x 6.4 TB NVMe flash cards on the High Capacity (HC) storage server

B : 4 x 6.4 TB NVMe flash cards on the database server

C : 8x 6.4 TB NVMe flash cards on the Extended (XT) storage server

D : No flash storage on the database server

E : 8 x 6.4 TB NVMe flash cards on the Extreme Flash (EF) storage server

Answer: A,E

Question 2

You want to monitor how a large production table is accessed. Especially, you are interested to see how the

access on that particular table leverages the benefits of the Exadata Platform.

Which two actions are NOT appropriate for that purpose?

Options :

A :

YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.

B :

You query v$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.

C : You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.

D :

You run the CellCli-command list activerequest , filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS.

Answer: A,C

Question 3

You are adding a disk expansion kit to a running Exadata X8M Database Machine's Database Servers, and have a filesystem layout that includes:

After running the following commands, which command needs to be run to add 20G of space to the filesystem mounted on /u01?

Options :

A : # lvextend -L +20G —verbose /dev/mapper/VGExaDb-LVDbOral

B : # xfs_growfs /uOl +20G

C : # resize2fs +20G /dev/VGExaDb/LVDbOral

D : # lvextend -L +20G —verbose /dev/VGExaDb/LVDbOral

Answer: A

Question 4

How do ASM failure groups provide redundancy?

Options :

A :

Failure groups are created for each grid disk to ensure mirror copies are written to the same storage server for faster recovery after a physical disk failure.

B :

Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.

C :

They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.

D : Extended Redundancy mirrors data across data centers providing the highest levels of data protection.

Answer: B

Question 5

You are monitoring PMEM cache to see if it is being used effectively with RDMA. Which two of these sources contain information about the RDMA I/O statistics?

Options :

A : PMEM Cache Space Usage section in AWR Report

B : PMEM Cache User Reads section in AWR Report

C : Database lOs section in AWR Report

D : Database Statistics (v$ View)

E : Exadata Metrics (LIST METRICCURRENT)

Answer: B,E

Free 1Z0-902 Mock Exam – Practice Online Confidently

Buying Options: