Oracle 1Z0-027 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 1Z0-027
Exam Name/Title: Oracle Exadata X3 and X4 Administration
Certification Provider: Oracle
Corresponding Certification: Oracle Database

Exam Questions: 72
Updated On: Jul 09, 2026

Question #1

You are about to replace one memory DIMM in an Exadata storage server and need to power off the affected cell.
Which fiour commands must you execute to safiely 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 ofi the database servers

B. CellCLI> ALTER GRIDDISK ALL INACTIVE

C. CellCLI> LIST GRIDDISK ATTRIBUTE name WHERE asmdeactivationoutcome != 'Yes'

D. 'shutdown -h now' on the affected cell

E. CellCLI> LIST GRIDDISK WHERE STATUS != 'inactive'

Discussion 0

Correct Answer: B,C,D,E Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #2

Which three storage components are available after the standard initial Database machine deployment?

A. Exadata Smart Flash Cache using all ofi the flashdisk space

B. The DBFS_DG diskgroup with external redundancy

C. The RECO_<DBM_Name> ASM diskgroup

D. The DATA_<DBM_Name> ASM diskgroup

E. Mirrored system partitions on hard disk 0 and hard disk 1

Discussion 0

Correct Answer: C,D,E Vote an answer

Question #3

To troubleshoot a possible hardware problem, you consider moving all disk drives firom one Exadata storage server to a replacement chassis.
You must contain storage availability while perfiorming task.
The Exadata storage server is an X3-8 Database Machine and storage grid is not partitioned.
Which two fiactors would prevent you firom moving the disks firom one Exadata storage server to another one?

A. Offline or inactive celldisks in another Exadata server

B. The existence ofi a normal redundancy ASM diskgroup

C. The existence ofi an ASM diskgroup with its compatible.asm attribute set to 10.2.0.0.0

D. The existence ofi an external redundancy ASM diskgroup

E. The existence ofi an ASM diskgroup with the repair_time attribute set to 0.

Discussion 0

Correct Answer: C,D Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #4

Which three fiactors should you consider when choosing a method fior migrating a database to the Database Machine?

A. Size ofi the source database

B. ASM attributes and allocation unit (AU) size ofi the diskgroups used by the source database

C. Endian fiormat ofi the source database

D. Type ofi database workload

E. Number ofi tablespaces in the source database

Discussion 0

Correct Answer: A,C,D Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #5

To guarantee proper cooling, you plan to place perfiorated floor tiles near your Database Machine.
Where, in relation to the cabinet, should they be placed?

A. On the right side, because the air flow is firom right to left.

B. At the firont, because the air flow is firom firont to back

C. Underneath the cabinet, because the air flow is firom bottom to top

D. On the left side, because the air flow is firom left to right

E. At the back, because the air flow is firom back to firont

Discussion 0

Correct Answer: B Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #6

You are monitoring and evaluating a create index statement on your Database Machine and have run the fiollowing
query after executing statement, providing the output. Shown:

Select two reasons why the statement would have produced so many "cell single block physical read" waits compared
to "cell smart table scan" waits.

A. There is a transaction that has modified one block ofi the table on which the index is being built in each cell, which
committed after the create index began.

B. There are huge numbers ofi chained rows in the table on which the index is being built.

C. There is an uncommitted transaction that has modified one block ofi the table on which the index is being built, in
each cell.

D. There is a ROWID column in the table on which the index is being built.

E. There are huge numbers ofi migrated rows in the table on which the index is being built.

Discussion 0

Correct Answer: B,E Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #7

Which two communication methods are used by which components in the Enterprise manager Architecture fior the
Database Machine?

A. SNMP traps fior alerts are sent by the storage server ILOM to the Enterprise Manager agent.

B. SNMP traps fior alerts are sent by the storage server ILOM to the storage server MS process

C. SNMP traps fior alerts are sent by the storage server MS process to the storage server ILOM

D. SNMP traps fior alerts are sent by the storage server ILOM to the storage server RS process.

E. SNMP traps fior alerts are sent by the storage server MS process to the enterprise Manager agent

Discussion 0

Correct Answer: B,E Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Question #8

You plan to migrate a database supporting an an OLTP workload to your Database Machine
This is part ofi a consolidation project and several other databases already exist on the Database Machine.
Which three Exadata fieatures may help to improve the perfiormance ofi this OLTP workload?

A. Hybrid Columnar Compression

B. Storage Index

C. I/O Resource Manager

D. Smart Scan

E. Smart Flash Log

F. Smart Flash Cache

Discussion 0

Correct Answer: C,E,F Vote an answer

Explanation: Only visible for EduDump members. You can sign-up / login (it's free).

Download Free Oracle 1Z0-027 Demo

Simply submit your e-mail address below to get started with our free demo of your Oracle 1Z0-027 exam.