1Z0-027 | All About Simulation 1Z0-027 pdf
Q31. Identify two valid reasons for creating multiple griddisks on a Single celldisk.
A. To segregate storage into multiple pools with different performance characteristics
B. To facilitate normal or high redundancy ASM diskgroups
C. To enable disk mirroring for the system area
D. To segregate storage into multiple pools that can be assigned to different databases
E. To segregate storage into multiple pools that can be assigned to different resource consumer groups in the same database.
Answer: BD
Q32. You recently upgraded your Exadata image to the latest release; previously you were using 11.2.0.3.
At the same time, you decide to address some performance problems as follows:
You noticed increased latency for the database log writer, especially during the quarterly battery learn cycle on the cells.
You have complaints of erratic performance from certain write-intensive applications.
Which two actions could improve performance in these areas?
A. Enable write-back flashcache by setting lunWriteCacheMode to Write Back Mode.
B. Use ALTER TABLE in the database to set CELL_FLASH_CACHE = KEEP for the tables belonging to the affected application.
C. Configure Smart Flash Log on the cells to use some of these of the space on the cell flash devices.
D. Configure the table belonging to the affected application using CELLCLI, to the set CELL_FLASH_CACHE = KEEP.
E. Configure Smart Flash Log on the database server to use server flash memory.
Answer: BC
Q33. Identify the three components that serve a purpose only in the Database Machine.
A. ASM intelligent Data Placement (IDP)
B. Intelligent Database Protocol (IDB)
C. Database Resource Manager (DBRM)
D. I/O Resource Manager (IORM)
E. Database Filesystem (DBFS)
F. The DISKMON process
Answer: ABD
Q34. Which three statements are true regarding the configuration of Auto Service Request (ASR) on your Database Machine?
A. HTTPS connectivity must be enabled from the ASK Manager host to the internet.
B. ASR Manager must be installed on one of the database servers.
C. Oracle Solaris must be used on the server where ASK Manager is installed.
D. SMTP must be enabled on at least one database server.
E. Oracle Linux must be used on the server where ASR Manager is installed
F. ASRManager may be installed on any type of server running Oracle Linux.
G. ASRManager may be installed on any type of server running Oracle Solaris.
Answer: AFG
Q35. Which two may act as building blocks for the creation of two or more griddisks residing on the same physical device and which have more balanced performance characteristics?
A. griddisk on hard drive-based intervleaved celldisks.
B. griddisk on hard drive-based celldisks consumed by ASM when creating diskgroups using ASM-based intelligent Data Placement (IDP)
C. griddisk on hard drive-based non-interleaved celldisks.
D. griddisk on Flash-base celldisks.
Answer: AB
Q36. Your customer wants you to partition the database and storage grids in his X3-2 full rack, creating database clusters and two storage grids.
One cluster will be used for production and should consist of 6 databases servers and 11 cells from the first storage grid.
The other cluster will be used for test and development, and should consist of 2 database servers and 3 cells from the second storage grid.
The storage must be partitioned so that the cells are visible only to the appropriate database servers based on the description above.
What must be done to achieve this?
A. Configure Exadata realms using Oracle ASM scoped security mode.
B. Configure Exadata realms using Database scoped security mode.
C. Edit the CELLIP.ORA file on each database server to contain IP addresses of cells in the storage grid associated with cluster to which that database server belongs.
D. Edit the CELLINIT.ORA file on each database server to contain IP addresses of cells in the storage grid associated with the cluster to which that database server belongs.
E. Edit the CELLIP.ORA file on each database server to contain IP addresses of database servers which are allowed access to specific cells in the same storage grid.
F. Edit the CELLIP.ORA file on each cell to contain IP addresses of database servers in the database server grid that are associated with the storage grid to which that cell belongs.
Answer: C
Q37. Which two communication methods are used by which components in the Enterprise manager Architecture for the Database Machine?
A. SNMP traps for alerts are sent by the storage server ILOM to the storage serverMSprocess
B. SNMP traps for alerts are sent by the storage serverMSprocess to the storage server ILOM
C. SNMP traps for alerts are sent by the storage serverILOMto the Enterprise Manageragent.
D. SNMP traps for alerts are sent by the storage serverMSprocess to the enterprise Manageragent
E. SNMP traps for alerts are sent by the storage server ILOM to the storage server RS process.
Answer: AD
Q38. Which three are true about Exadata storage server alerts?
A. A threshold based alert gets cleared automatically when the measured value no longer violates the threshold.
B. A storage server alert is only ever issued as a warning or at a critical situation.
C. Storage server alerts are all stateless alerts.
D. Storage server alerts notifications may be sent using SNMP.
E. Storage server alerts are all stateful alerts.
F. Storage server alerts notifications may be sent using SMTP.
Answer: ABD
Q39. Yesterday, an Exadata storage server flashdisk entered the poor performance state.
This flashdisk os used by flashcache and has a griddisk which is a member of a normal redundancy diskgroup.
Identify the six steps you must perform to replace flashdisk.
A. Identify the griddisk located on the poorly performing flashdisk and drop it from the associated ASm diskgroup.
B. Verify that the griddisk located on the poorly performing flashdisk has been successfully dropped from the associated ASM diskgroup.
C. Drop the flashcache on all cell.
D. Safely power off the cell containing the poorly-performing flashdisk.
E. Replace the poorly performing flashdisk.
F. Power up the cell containing the replaced flashdisk and activate all griddisks.
G. Recreate the flashcache on the cell using all flashdisks.
H. Create a new griddisk on the replaced flashdisk.
I. Add the griddisk back into the ASM diskgroup to which it belonged.
Answer: ADEFHI
Q40. You plan to migrate a database supporting an an OLTP workload to your Database Machine
This is part of a consolidation project and several other databases already exist on the Database Machine.
Which three Exadata features may help to improve the performance of this OLTP workload?
A. Hybrid Columnar Compression
B. I/O Resource Manager
C. Smart Flash Cache
D. Smart Flash Log
E. Smart Scan
F. Storage Index
Answer: BCD