(2021) 1Z0-1089-20 Dumps and Practice Test (57 Questions)
Guide (New 2021) Actual Oracle 1Z0-1089-20 Exam Questions
NEW QUESTION 30
On Oracle Cloud Infrastructure (OCI), a customer wants to build a 3TB filesystem for high IOPS workloads (like relational databases, small files, etc).
Which action provides the highest IOPS using OCI block volumes for storage?
- A. Attach three Block volumes of 1TB each and use filesystem Block size of 2M or higher.
- B. Attach one Block volume of 3TB volume size and use filesystem Block size of 4K.
- C. Attach three Block volumes of 1TB each and use filesystem Block size of 4K.
- D. Attach one Block volume of 3TB volume size and use filesystem Block size of 2M or higher.
Answer: B
NEW QUESTION 31
A file system is built using BM.Standard2.52 Compute shape for File Servers. One 25 Gbps NIC/network card is used to connect to 10 Block Volumes of 1TB each (max. 4#0MB/s per volume). The other 25 Gbps NIC is used for sending/receiving data to/from client nodes.
File system client instances which mount the file system are provisioned using VM.Standard2.16 Compute shapes. (Network bandwidth: l6.4Gbps(2050 MB/s)) What is the max IO theoretical throughput a client node can get?
- A. 3125 MB/s
- B. 6250 MB/s
- C. 2050 MB/s
- D. 4800 MB/s
Answer: A
NEW QUESTION 32
You are building a file system that needs to handle large files with a lot of nodes reading at the same time.
What minimum size of block volume maximizes throughput for large files?
- A. 1TB
- B. 500GB
- C. 800GB
- D. 32TB
Answer: C
NEW QUESTION 33
Which workload is massively parallel In nature?
- A. Map/Reduce
- B. ETL
- C. SQL Queries
- D. Streaming
Answer: A
NEW QUESTION 34
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. 66%
- B. 50%
- C. 100%
- D. 75%
Answer: B
NEW QUESTION 35
You are comparing different processors for Monte-Carlo simula-tion with millions of single core executions. What frequency will have the highest impact on the "time to solution" ?
- A. Base Frequency
- B. Turbo Frequency
- C. All Core Turbo Frequency
- D. Only the network throughput will influence Monte Carlo simula-tions.
Answer: B
NEW QUESTION 36
A customer has a very busy workload. The model is very large (1 PB range) and only some small files are updated for new jobs. Throughput needed during the run is roughly 25GB/s.
What Is a fast and cost-conscious way to handle the file system?
- A. Build a file system using Block volumes and Standard BMs, take advantage of the different block volume performances levels.
- B. Put the data in object storage, and mount It using s3fs-fuse project.
- C. Build a file-system using NVMe on Dense shapes. Then move the data to object storage when not needed.
- D. Use NVMe on HPC shapes to build a File System with the RDMA connection.
Answer: C
NEW QUESTION 37
You are running a cluster using multiple BM.Standard2.52 machines. The model is on a NFS share running on block volume- You've tried doubling the number of machines but It's not running any faster.
Which two actions could potentially speed up this tightly coupled workload?
- A. Switch to FSS for your file system.
- B. Use BM.HPC2.36.
- C. Switch to ESS mode.
- D. Use Cluster Networking.
Answer: C
NEW QUESTION 38
What HDFS replication factor can be used with Block Volumes to optimize cost?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 39
Which is an accurate analogy for Amdahl's law?
- A. When chopping vegetable to prepare a 4 person-meal, 2 persons are going twice as fast as one, but 8 people may not be 8 times faster.
- B. In track and field, the 4xl00m relay is only 17% faster than the world record for individual 400m.
- C. There Is no such thing as a free lunch.
- D. An orchestra can only play well together If they have a great conductor.
Answer: A
NEW QUESTION 40
Which Message Passing Interface (MPI) distribution is NOT available today?
- A. Platform MPI
- B. Intel MPI
- C. OCI MPI
- D. Open MPI
Answer: B
NEW QUESTION 41
What are two different types of Storage offerings available to build a filesystem on Oracle Cloud infrastructure (OCI)?
- A. Object Storage
- B. File Storage
- C. Local NVMe SSDs on DenselO and HPC compute shapes
- D. Block Volume Service
Answer: A
NEW QUESTION 42
Which is NOT an advantage associated with moving a Big Data workload to Oracle Cloud Infrastructure (OCI)?
- A. dynamically scale capacity against workload
- B. best price / performance for Big Data workloads In the Cloud
- C. availability of Oracle Airflow
- D. managed service offerings to support common Big Data workloads
- E. Object Storage as Data Lake
Answer: D
NEW QUESTION 43
You are building a file system that needs to handle large files with a lot of nodes reading at the same time.
What should be your main goal?
- A. Maximize Latency while keeping throughput above a certain threshold.
- B. Maximize throughput.
- C. Minimize throughput while keeping the latency low.
- D. Minimize latency.
Answer: B
NEW QUESTION 44
Which statement correctly describes Oracle Data Science?
- A. It provides management for on-premise machine learning models.
- B. It enables data science teams to build, train, and manage machine learning models on Oracle Cloud.
- C. It is primarily focused on supporting a single data scientist.
- D. Oracle's Data Science model catalog holds contains only the model artifact.
Answer: A
NEW QUESTION 45
Which benchmark is important to a customer when considering 0lg Data workloads on Oracle Cloud Infrastructure (OCI)?
- A. TPC-DS
- B. TPC-C
- C. TPC-DI
- D. Terasort
Answer: C
NEW QUESTION 46
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