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Download Oracle : 1Z0-1089-20 Questions & Answers as PDF & Test Software

Last Updated: Sep 06, 2026

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A Oracle credential still carries serious weight with hiring managers in 2026, and Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate is one of the most direct ways to earn one. Prepare with the 57 expert-verified 1Z0-1089-20 practice questions from TestSimulate and walk into the test center knowing what to expect.

Oracle 1Z0-1089-20 Exam Overview:

Certification Vendor:Oracle
Exam Name:Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate
Exam Number:1Z0-1089-20
Passing Score:Approximately 68%
Real Exam Qty:55-60
Related Certifications:Oracle Cloud Infrastructure Foundations Associate
Oracle Cloud Infrastructure Architect Associate
Exam Format:Multiple Response, Multiple Choice
Exam Duration:90 minutes
Available Languages:English
Certificate Validity Period:18 months
Exam Price:$245 USD (may vary by country)
Recommended Training:OCI Learning Path
Oracle Cloud Infrastructure Training
Exam Registration:Pearson VUE Oracle Exams
Oracle Certification Registration
Sample Questions:Oracle 1Z0-1089-20 Sample Questions
Exam Way:Online proctored or test center (Pearson VUE)
Pre Condition:No formal prerequisite required; recommended familiarity with Oracle Cloud Infrastructure fundamentals.
Official Syllabus URL:https://education.oracle.com/

Oracle 1Z0-1089-20 Exam Syllabus Topics:

SectionObjectives
OCI Infrastructure for HPC- Compute and GPU instances
  • 1. Bare metal and GPU shapes
    • 2. Cluster networking for HPC
      - Networking and storage
      • 1. VCN design for HPC workloads
        • 2. Block, File, and Object Storage usage
          Security and Operations- Monitoring and optimization
          • 1. Performance tuning for HPC workloads
            • 2. Logging and monitoring services
              - Identity and access management
              • 1. Secure workload deployment
                • 2. IAM policies and compartments
                  Big Data Services on OCI- Analytics tools
                  • 1. Data flow and data science services
                    • 2. Visualization and reporting tools
                      - Data platforms
                      • 1. Spark and Hadoop integration
                        • 2. Oracle Big Data Service
                          HPC and Big Data Concepts on OCI- Big Data architecture on OCI
                          • 1. Data processing frameworks overview
                            • 2. Batch vs streaming workloads
                              - High Performance Computing fundamentals
                              • 1. Parallel computing concepts
                                • 2. HPC architecture overview

                                  Common Questions About the Oracle 1Z0-1089-20 Exam

                                  The 1Z0-1089-20 exam is the official Oracle exam behind Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate — passing it earns you the Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate certification, a credential positioned at the Associate level. It is built for candidates who want to validate the skills measured by Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate. Depending on your track, the exam is also linked to the Oracle Cloud Infrastructure Foundations Associate and Oracle Cloud Infrastructure Architect Associate certifications, so one pass can move you toward more than one Oracle credential.

                                  The 1Z0-1089-20 exam presents 55-60 questions to be completed within 90 minutes. That pace leaves little room for second-guessing: read each question carefully on the first pass, flag the ones you want to revisit, and keep moving instead of stalling on a single item. Before exam day, run at least one full timed session in the TestSimulate desktop or online test engine with a comparable question load — a steady rhythm under the clock is a trainable skill, and it is often what separates a pass from a near miss.

                                  To pass the 1Z0-1089-20 exam you need Approximately 68%, and the official registration fee is $245 USD (may vary by country). Keep in mind that a failed attempt means paying that fee again in full — retakes are not discounted. Given the cost, self-test before you book: if you can score comfortably above the passing mark on two or three consecutive timed TestSimulate practice tests, your budget is far better spent on the exam itself than on a retake.

                                  No formal prerequisite required; recommended familiarity with Oracle Cloud Infrastructure fundamentals. Because Oracle revises its certification programs from time to time, treat this as a starting point rather than the final word. Confirm the current eligibility requirements on the official Oracle exam page before you register.

                                  Registration for the 1Z0-1089-20 exam is handled through the official channels below:

                                  Delivery method: Online proctored or test center (Pearson VUE) — pick the option that suits you best when booking your slot.

                                  Oracle points Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate candidates toward the following official courses:

                                  Official courses build the foundation; pairing them with the 57 1Z0-1089-20 practice questions from TestSimulate turns that knowledge into exam-day readiness.

                                  Yes. A free PDF demo of the 1Z0-1089-20 practice questions is available, so you can check the question style and answer quality before spending anything. Every purchase also includes 365 days of free updates — whenever Oracle adjusts the Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate blueprint, your material is refreshed at no cost during that period. After the first year, you can extend the update service at a 50% discount from your member zone.

                                  TestSimulate backs your purchase with a 100% Money Back Guarantee. If you take the corresponding exam within 60 days of purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip together with the official Score Report PDF within 2 days of your exam date; approved claims are processed within 7 days. The guarantee applies only to the exam matching your purchase, the candidate name must match the payer name, and it does not cover attempts taken within 3 days of purchase, candidates who downloaded the material but never sat the exam, expired orders, or free materials. If you would rather keep preparing, you can exchange the product for two free exam preparation packages of equal value and keep the update service on your original purchase.

                                  Delivery is instant: your download is available right after payment, and a copy is emailed to you within one minute. If nothing arrives within 2 hours, check your spam folder and contact our support team. There is no limit on the number of computers you can install the software on.

                                  The Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate syllabus is organized into 4 domains. Among the headline areas are OCI Infrastructure for HPC, Big Data Services on OCI, HPC and Big Data Concepts on OCI. Rather than copying every subtopic here, we keep the complete, current outline in the Exam Topics section above — work through it domain by domain with the TestSimulate 1Z0-1089-20 practice questions so nothing on the blueprint catches you off guard.

                                  Oracle Cloud Infrastructure 2020 HPC and Big Data Solutions Associate Sample Questions:

                                  Question 1

                                  On Oracle Cloud Infrastructure (OCI), a customer wants to build a 3TB fllesystem for high throughput-oriented workloads.
                                  Which action provides the highest IO throughput using OCI block volumes for storage?

                                  A. Attach three Block volumes of 1TB each and use filesystem Block size of 1M or higher.
                                  B. Attach three Block volumes of 1TB each and use fllesystem Block size of 256K or lower.
                                  C. Attach one Block volume of 3TB volume size and use fllesystem Block size of 1M or higher.
                                  D. Attach one Block volume of 3TB volume size and use fllesystem Block size of 256K or lower.


                                  Question 2

                                  A customer is hesitating between running BM.Standard.E3.128 or HPC2.36 for his workload. Which statement would disqualify the AMD chip without any benchmark?

                                  A. Total number of processes is between 48 and 128 cores and can use RDMA.
                                  B. IO speed has a huge impact.
                                  C. The workload is embarrassingly parallel.
                                  D. The workload requires about 4GB/core of memory.


                                  Question 3

                                  A customer ran a Job on 2 BM.HPC2.36, and the job took 4 hours using 32 cores of each node. They later ran on 4 nodes and the Job took 3 hours. What Is the efficiency gained?

                                  A. 75%
                                  B. 66%
                                  C. 50%
                                  D. 100%


                                  Question 4

                                  Which Is a common business problem for customers running Big Data workloads?

                                  A. Costs associated to process a large scale data set
                                  B. Cost associated with Disaster Recovery for large deployments
                                  C. Ability to process a large data set at the maximum cost as possible
                                  D. Ability to process a small data set at the minimum cost as possible


                                  Question 5

                                  On a RDMA cluster, a latency test was conducted, with these results:

                                  What should you do?

                                  A. Rerun the test and see If It Is consistent.
                                  B. Report the higher latency through a SR.
                                  C. Nothing, this behavior is normal.
                                  D. Latency Is not critical, check the bandwidth.


                                  Solutions:

                                  Question 1
                                  Answer: D
                                  Question 2
                                  Answer: C
                                  Question 3
                                  Answer: C
                                  Question 4
                                  Answer: A
                                  Question 5
                                  Answer: C

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