1Z0-1089-20 Online Practice Questions and Answers

Which three Hadoop distributions are supported on Oracle Cloud Infrastructure (OCI)?

A. Pivotal EMC

B. Apache Hadoop

C. Hortonworks

D. MapR

E. Cloudera

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 one Block volume of 3TB volume size and use fllesystem Block size of 256K or lower.

B. Attach one Block volume of 3TB volume size and use fllesystem Block size of 1M or higher.

C. Attach three Block volumes of 1TB each and use fllesystem Block size of 256K or lower.

D. Attach three Block volumes of 1TB each and use filesystem Block size of 1M or higher.

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. Distributed File Systems like Gluster, OCFS2, GFS2

B. Linux File Systems like XFS, EXT4, EXT3, etc.

C. Network File System (NFS)

D. Parallel File Systems like Lustre, IBM Spectrum Scale(GPFS), BeeGFS, etc.

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 all TCP/UDP ports, subnet2: 172.16.0.0/16 for all TCP/UDP ports

B. Subnet1: 0-0.0.0 for TCP port 22, subnet 1 and 2: 172.16.0.0/23 for all TCP/UDP ports

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 TCP port 22, subnet 2: 172.16.0.0/16 for TCP port 22

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. Replicate data to a Hadoop cluster running on OCI in near-realtime.

C. Use Terraform to rapidly provision Hadoop Cluster on OCI.

D. Replicate data to OCI Object Storage in near-realtime.

On a RDMA cluster, a latency test was conducted, with these results: What should you do?

A. Nothing, this behavior is normal.

B. Latency Is not critical, check the bandwidth.

C. Rerun the test and see If It Is consistent.

D. Report the higher latency through a SR.

Which two performance metrics can be used to trigger scaling actions In Autoscaling?

A. Network latency

B. Memory utilization

C. Network throughput

D. Disk IOPS

E. CPU utilization

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. 800GB

B. 1TB

C. 32TB

D. 500GB

Which three are available on Oracle Cloud Infrastructure (OCI) as load balancing policies?

A. Least Connections

B. Round Robin

C. Random

D. Least CPU Utilization

E. IP Hash

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. All Core Turbo Frequency

B. Base Frequency

C. Only the network throughput will influence Monte Carlo simula-tions.

D. Turbo Frequency