Reliable Oracle Cloud Infrastructure 1Z0-1089-20 Dumps PDF Dec 19, 2021 Recently Updated Questions
Pass Your Oracle 1Z0-1089-20 Exam with Correct 57 Questions and Answers
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NEW QUESTION 17
A customer has decided to use Oracle Cloud Infrastructure (OCI) for their Disaster Recovery (DR) site for an on-premises Hadoop cluster. They have an RPO of 4 hours, and an RTO of 1 hour.
Which two options should they consider on OCI to meet their DR requirements?
- A. Replicate data to OCI Object Storage every hour.
- B. Use Terraform to rapidly provision Hadoop Cluster on OCI.
- C. Replicate data to a Hadoop cluster running on OCI in near-realtime.
- D. Replicate data to OCI Object Storage in near-realtime.
Answer: B
NEW QUESTION 18
Which Message Passing Interface (MPI) distribution is NOT available today?
- A. Open MPI
- B. Intel MPI
- C. Platform MPI
- D. OCI MPI
Answer: B
NEW QUESTION 19
Which is NOT an advantage associated with moving a Big Data workload to Oracle Cloud Infrastructure (OCI)?
- A. best price / performance for Big Data workloads In the Cloud
- B. Object Storage as Data Lake
- C. dynamically scale capacity against workload
- D. availability of Oracle Airflow
- E. managed service offerings to support common Big Data workloads
Answer: E
NEW QUESTION 20
Which two options are valid when configuring health check policies in Oracle Cloud Infrastructure (OCI) Load Balancing?
- A. FTP level health checks
- B. HTTP level health checks
- C. TCP level health checks
- D. UDP level health checks
Answer: B,C
NEW QUESTION 21
You are architecting the infrastructure for a file system.
What are the different criteria you should use, and in what order to build a filesystem for optimal performance?
- A. Storage > Network Bandwidth > Number of Compute Cores/RAM
- B. Number of Compute Cores/RAM > Storage > Network Bandwidth
- C. Network Bandwidth > Number of Compute Cores/RAM > Storage
- D. Network Bandwidth > Storage > Number of Compute Cores/RAM
Answer: C
NEW QUESTION 22
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. 50%
- B. 66%
- C. 75%
- D. 100%
Answer: A
NEW QUESTION 23
Which statement explains how instances are distributed in an instance pool?
- A. The instances In a pool are distributed between availability domains only.
- B. The instances in a pool are not distributed across fault domains.
- C. The instances in a pool are distributed across all fault domains In a best-effort manner based on capacity.
- D. It is not possible to distribute instances across availability domains or fault domains.
- E. The instances in a pool are distributed evenly between two fault domains.
Answer: C
NEW QUESTION 24
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. 2050 MB/s
- B. 4800 MB/s
- C. 3125 MB/s
- D. 6250 MB/s
Answer: C
NEW QUESTION 25
A two node clustered/parallel filesystem built using Baremetal Compute shape (BM.Standard2.52) and Block Volume Storage delivers maximum sustained aggregate IO throughput of 5GB/s for read and write, while storing a single copy of the data (replica=l) in filesystem.
What will be the maximum sustained aggregate IO throughput for read and write, when two copies of the data (replica=2) are stored in filesystem for High Availability?
- A. 2.5GB/S for write and 5GB/s for read
- B. 2.5GB/s for both (read and write)
- C. 2.5GB/s for read and 5GB/s for write
- D. 5GB/s for both (read and write)
Answer: B
NEW QUESTION 26
Compute nodes are on subnet2(l72.16.1.0/24) and there is a BM.Dense.I02.8 on subnet1.
(1 /2.16.0.0/24) that will serve as a bastion, file server and license server. The bastion will be accessed through a public IP with SSH.
Which security lists should you choose for an HPC cluster? If multiple options are possible, choose the one limiting access the most.
- A. Subnet1: 0-0.0.0 for TCP port 22, subnet 1 and 2: 172.16.0.0/23 for all TCP/UDP ports
- B. Subnet1: 0-0.0.0 for TCP port 22, subnet 2: 172.16.0.0/16 for TCP port 22
- C. Subnet1: 172.16-1.0/24 for port 22, subnet2: 172.16.1.0/24 for all TCP/UDP ports
- D. Subnet1: 0.0.0.0 for all TCP/UDP ports, subnet2: 172.16.0.0/16 for all TCP/UDP ports
Answer: C
NEW QUESTION 27
You have an HPC cluster running tightly coupled MPI jobs without VPN or Fast Connect.
The compute nodes are on subnet2(172.16.1.0/24), and there is a BM.Dense.I02.8 on subnet1 (172-16.0.0/24) that will serve as a bastion and file server.
What security lists should you choose to be able to run the workloads while limiting access as possible?
- A. Subnet1: 0.0.0.0 for TCP port 22, subnet 1 and 2: 172.16.0.0/23 for all protocols
- B. Subnet1: 0.0.0.0 for all protocols, subnet2: 172.16.0-0/16 for all protocols
- C. Subnet1: 172.16.1.0/24 for port 22, subnet2: 172.16.1.0/24 for all protocols
- D. Subnet1: 0.0.0.0 for TCP port 27, subnet 7: 172.16.0.0/16 for TCP port 22
Answer: B
NEW QUESTION 28
What minimum size of block volume with Balanced performance tier maximizes throughput for large files?
- A. 32TB
- B. 10TB
- C. 1TB
- D. 100GB
Answer: A
NEW QUESTION 29
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 ESS mode.
- B. Use Cluster Networking.
- C. Use BM.HPC2.36.
- D. Switch to FSS for your file system.
Answer: A
NEW QUESTION 30
When an instance pool scales in, what is the correct order that the instances are terminated?
- A. The oldest instance within the fault domain is terminated, the number of instances is balanced across availability domains, the number of instances is balanced across fault domains.
- B. The number of instances is balanced across availability domains, the oldest instance within the fault domain is terminated, the number of instances Is balanced across fault domains.
- C. The number of instances is balanced across fault domains, the number of instances is balanced across fault domains, the oldest instance within the fault domain is terminated.
- D. The number of instances is balanced across availability domains, the number of instances is balanced across fault domains, the oldest instance within the fault domain is terminated.
Answer: D
NEW QUESTION 31
What HDFS replication factor should be used for locally attached storage In HDFS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 32
Which workload is massively parallel In nature?
- A. SQL Queries
- B. ETL
- C. Map/Reduce
- D. Streaming
Answer: C
NEW QUESTION 33
Oracle Cloud infrastructure (OCI) Block Volume Storage supports sharing a Block Volume among multiple compute Instances in read/write or read only shareable mode.
Which two file systems should be used to allow multiple compute Instances to read/write data concurrently without any data loss?
- A. Network File System (NFS)
- B. Linux File Systems like XFS, EXT4, EXT3, etc.
- C. Distributed File Systems like Gluster, OCFS2, GFS2
- D. Parallel File Systems like Lustre, IBM Spectrum Scale(GPFS), BeeGFS, etc.
Answer: C
NEW QUESTION 34
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