Oracle 1Z1-027

Preparing for the Oracle Exadata X3 and X4 Administration exam while juggling a full-time job is not easy, and most candidates simply do not have months to spare. Dumpkiller built its 1Z1-027 practice questions for exactly that situation — 72 focused questions that make every study hour in 2026 count.

Oracle 1Z1-027 Exam Overview:

Oracle 1Z1-027 Exam Syllabus Topics:

What Candidates Ask About the Oracle 1Z1-027 Exam

Can you give me an overview of the 1Z1-027 exam?

The Oracle Exadata X3 and X4 Administration exam (code: 1Z1-027) is the official Oracle exam that leads to the Oracle Certified Expert (OCE) - Exadata X3 and X4 Administration certification. It sits at the Professional level of the Oracle certification track. It is also connected with related credentials such as Oracle Database Administrator Certified Professional (OCP), Oracle Exadata Database Machine Administration, Oracle Exadata Database Machine X5 and newer certifications. Passing it proves to employers that your skills have been validated by Oracle itself, which is why the 1Z1-027 credential keeps showing up in job postings.

How many questions are in the 1Z1-027 exam, and how long does it take?

The Oracle Exadata X3 and X4 Administration exam gives you 120 minutes to work through 60-80. Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the Dumpkiller test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.

What score do I need to pass the 1Z1-027 exam, and how much does it cost?

The passing score for the Oracle Exadata X3 and X4 Administration exam is Unknown (Oracle does not publicly standardize a fixed passing percentage for this exam), and the official registration fee is USD 245 (may vary by region and tax). Remember that a failed attempt means paying that fee in full again, so a timed self-assessment with Dumpkiller practice questions about a week before your exam date is a cheap way to confirm you are scoring comfortably above Unknown (Oracle does not publicly standardize a fixed passing percentage for this exam).

Are there any prerequisites for the 1Z1-027 exam?

According to Oracle, the following applies: Recommended: Oracle Database Administrator experience (OCP level) and familiarity with RAC and ASM concepts. Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://education.oracle.com/ before you register.

How do I register for the 1Z1-027 exam?

You can book your Oracle Exadata X3 and X4 Administration exam through the official channels below:

• Oracle Certification Registration
• Pearson VUE Oracle Exams

Depending on availability in your region, the exam is delivered as Computer-based exam delivered via Oracle University / Pearson VUE testing centers or online proctored delivery (availability may vary by region and exam lifecycle).

What official training does Oracle recommend for the 1Z1-027 exam?

Oracle lists the following training options for Oracle Exadata X3 and X4 Administration candidates:

• Oracle Exadata Training (Oracle University)
• Oracle Database Machine Administration Courses

Official courses build a solid foundation, and pairing them with the 72 practice questions from Dumpkiller shows you how ready you really are before you spend money on the exam itself.

Can I try the 1Z1-027 practice questions before buying?

Yes. Dumpkiller offers a free 1Z1-027 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Oracle Exadata X3 and X4 Administration material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.

What happens if I do not pass the 1Z1-027 exam, and how is my order delivered?

If you take the corresponding 1Z1-027 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.

What topics are covered in the 1Z1-027 exam?

The official Oracle Exadata X3 and X4 Administration syllabus is organized into 6 main domains. The first three are Backup and High Availability, Storage Server (Cell) Administration, and Installation and Configuration. For the full domain-by-domain breakdown, see the complete Exam Topics outline above.

Oracle Exadata X3 and X4 Administration Sample Questions:

Question #1

Which statement is true about operating systems on database Machine multi-rack configuration consisting ofi two fiull
racks and one Exadata storage rack?

A. All Exadata storage servers in the same cluster must run the same O/S but Exadata Storage Servers in different
clusters may run a different O/S.
B. All Exadata storage servers must run the Oracle Linux O/S and all database servers within the same cluster must run
the same O/s.
C. All Exadata storage servers and all database servers must run the Oracle Linux O/S and X3-8 database server may
run the Oracle Solaris O/S.
D. All Exadata storage servers must run the Oracle Linux O/S and all database servers within the same cluster must run
the Oracle Linux O/s.
E. All Exadata Storage Servers must run the Oracle Solaris O/S and all database servers within the same cluster must
run the same O/S.

Question #2

Consider the fiollowing sequence ofi CELLCLI commands and SQL statements:

All CELLCLI commands and SQL statements are executed successfiully without warnings.
Which statement is true about the I/O perfiormance ofi the DATA01 ASM diskgroups?

A. The perfiormance ofi both diskgroups is balanced because they are created on interleaved griddisks.
B. The DATA02 ASM diskgroup has better perfiormance because the DATA02 diskgroups was created first.
C. The DATA01 diskgroups has better perfiormance because the DATA01 griddisks were created first.
D. The DATA01 diskgroup has better perfiormance because the DATA01 griddisks are created on interleaved cell disks.

Question #3

Which three are among the software components that constitute the QoS Management firamework?

A. Grid Infirastructure fior a cluster
B. Cluster Health Monitor (CHM)
C. Cluster Verification Utility (CLUVFY)
D. Grid Infirastructure fior a standalone server
E. OC4J cluster resource
F. O/S Resource Manager

Question #4

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. CellCLI> LIST GRIDDISK ATTRIBUTE name WHERE asmdeactivationoutcome != 'Yes'
B. CellCLI> ALTER GRIDDISK ALL INACTIVE
C. CellCLI> LIST GRIDDISK WHERE STATUS != 'inactive'
D. 'crsctl stop cluster -all' on one ofi the database servers
E. 'shutdown -h now' on the affected cell

Question #5

You are checking the status ofi the ports on the one ofi the InfiniBand switches in your Database Machine.
You have run the getportstatus as shown:

You have 36 ports to check.
Which two methods would you use to check the status ofi all 36 ports?

A. Create user-defined metrics fior the InfiniBand switch.
B. Use Database Control.
C. Use the ibqueryerros.pl script logged into the InfiniBand switch as root.
D. Use Enterprise Manager.

Solutions: