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2016 Nov 1Z0-027 free practice test

Q31. Which three are among the software components that constitute the QoS Management framework? 

A. Cluster Health Monitor (CHM) 

B. Cluster Verification Utility (CLUVFY) 

C. O/S Resource Manager 

D. Grid Infrastructure for a standalone server 

E. Grid Infrastructure for a cluster 

F. OC4J cluster resource 

Answer: AEF 


Q32. You are about to replace one memory DIMM in an Exadata storage server and need to power off the affected cell. 

Which four commands must you execute to safely power off the storage server in your standard deployed quarter rack Database Machine assuming that redundancy is not compromised? 

A. ‘crsctl stop cluster -all’ on one of the database servers 

B. CellCLI> LIST GRIDDISK ATTRIBUTE name WHERE asmdeactivationoutcome != ‘Yes’ 

C. CellCLI> ALTER GRIDDISK ALL INACTIVE 

D. CellCLI> LIST GRIDDISK WHERE STATUS != ‘inactive’ 

E. ‘shutdown –h now’ on the affected cell 

Answer: BCDE 


Q33. 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 


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 three are true abort Enterprise Manager plug- in configuration for the Database Machine? 

A. There are several separate plug-ins for Grid Control. 

B. There is one plug-in for Cloud Control. 

C. There are several separate plug-ins for Cloud Control. 

D. Some plug-ins require SNMP trap forwarders. 

E. All plug-ins require SNMP trap forwarders. 

F. There is one plug-in for Grid Control. 

Answer: ABD 


Abreast of the times 1Z0-027 rapidshare:

Q36. You plan to monitor storage servers after configuring an I/O resource manager plan with directives for inter-database plans and intra-database plans. 

Which two types if metrics would help assess the impact of the intra-database plans on I/O to the storage servers? 

A. Category I/O 

B. Database I/O 

C. Resource Consumer Group I/O 

D. Smart Flash Log I/O 

E. Smart Flash Cache I/O 

Answer: BC 


Q37. Your Database Machine has a large database with some very large tables supporting OLTP workloads. 

High volume Insert applications and high volume update workloads access the same tables. 

You decide to compress these tables without causing unacceptable performance overheads to the OLTP application. 

Which three are true regarding this requirement? 

A. Using'compress for oltp'will compress the data less than if using Hybrid Columnar Compression when specified with compress for query low. 

B. The compression is performed on the storage servers when using compress for oltp in an Exadata environment. 

C. The compression method compress for archive high is the worst fit for this requirement. 

D. Using'compress for oltp'will compress the data more than if using Hybrid Columnar Compression when specified with compress for archive low. 

E. The compression is performed on the database servers when using'compress for oltp'in an Exadata environment. 

Answer: ACE 


Q38. You have altered an index supporting a constraint to be invisible on a large read only data warehouse table, to determine it Smart Scan operations will be fast enough to satisfy your performance requirements. 

Given the results of your testing, you consider dropping the index. 

Which two statements are true? 

A. You must retain the index and set the constraint to DISABLE NOVALIDATE RELY to enforce the constraint 

B. You may drop the index and use a constraint with the DISABLE NOVALIDATE RELYflags 

C. You must retain the index and make it visible again for the constraint to be enforced. 

D. You may drop the index and make the constraint invisible, because this is enough for the constraint to be enforced. 

E. You may retain the index, and leave it as invisible, because this is enough for the constraint to be recognized. 

Answer: AC 


Q39. Your database Machine has the exachk utility pre-installed and you decide to use it periodically, to validate the installation against Oracle’s recommended best practices. 

Which two actions could you take to do this? 

A. Use a cron job on a database node to run it at regular intervals. 

B. Rut it once from a database node and it will then perform periodic monitoring automatically. 

C. Use a cron job on each cell to run it at regular intervals. 

D. Run it once on each cell and it will then perform periodic monitoring automatically. 

E. Create a Job in Enterprise Manager to run the exachk utility at regular intervals. 

Answer: BE 


Q40. Which three must he true for Smart Scans to be done? 

A. Executing a query in parallel 

B. Setting _serial_direct_read=true in the session issuing the SQL statements 

C. Having direct path reads used at run time 

D. Having a 4 megAUsize for the ASM diskgroup containing the tablespace in which tables accessed by a query are stored 

E. Cell_offload_process = true for the ASM diskgroup containing the tablespace in which tables accessed by a query are stored. 

F. cell.smart_scan_capable=true for the ASM diskgroup containing the tablespace in which tables accessed by a query are stored. 

Answer: ACF