HPC practice exam

HPC practice exam Which Hadoop distributions are supported on OCI? a. Cloudera b. Hortonworks c. MapR d. Pivotal EMC - ✔✔a. Cloudera b. Hortonworks c. MapR Which OCI storage options are supported for direct HDFS ...

HPC practice exam Which Hadoop distributions are supported on OCI? a. Cloudera b. Hortonworks c. MapR d. Pivotal EMC - ✔✔a. Cloudera b. Hortonworks c. MapR Which OCI storage options are supported for direct HDFS use in Hadoop? a. Object Storage b. Block Volume c. DenseIO NVMe d. FSS - ✔✔b. Block Volume c. DenseIO NVMe What HDFS replication factor should be used for locally attached storage in HDFS? a. 1 b. 2 c. 3 d. 4 - ✔✔3 Which of the following shapes are available for Data Science Notebook Sessions? a. BM.GPU2.1 b. VM.Standard2.1 c. BM.GPU3.8 d. VM.Standard2.16 - ✔✔VM.Standard2.16 Why is Data Visualization necessary in Data Science? a. Visualize trends and patterns b. Visualize Model lifecycle c. Understand gradient values d. Visual relationship of the hyperparameters - ✔✔Visualize trends and patterns Which one is the correct progression of steps when using Accelerated Data Science a. Data Acquisition ---> Feature Engineering ---> Exploratory Data Visualization ---> Model Training b. Data Acquisition ---> Hyperparameter optimization ---> Feature Engineering ---> Model Training c. Data Acquisition ---> Exploratory Data Analysis and Visualization ---> Feature Engineering -- -> Model Training d. Data Acquisition ---> Feature Engineering ---> Model Training---> Exploratory Data Analysis and Visualization - ✔✔Data Acquisition ---> Exploratory Data Analysis and Visualization ---> Feature Engineering ---> Model Training What is (roughly) the latency between 2 BM.HPC2.36 nodes using RDMA on the same rack: a. 1.7 nano seconds b. 1.7 micro seconds c. 3 micro seconds d. 0.2 milli seconds - ✔✔1.7 micro seconds What would you use as a first guess to run an embarrassingly parallel workload for risk analysis with Monte Carlo? The code is homegrown and has not changed much in the last decade. They will use a parallel file system outside of the compute cluster. BM.HPC2.36 BM.DenseIO2.52 BM.Standard.E2.64 BM.GPU3.8 - ✔✔BM.Standard.E2.64 You have run a workload on 2000 cores on OCI. Here is how long it took: BM.HPC2.36: 6 hours BM.Standard.E2.64: 10 hours BM.Standard.E3.128: 5 hours BM.Standard2.52: 12 hours Which one should you pick? a. BM.HPC2.36 b. BM.Standard.E2.64 c. BM.Standard.E3.128 d. BM.Standard2.52 - ✔✔BM.Standard.E3.128 What are the different types of Storage offerings available to build a filesystem on Oracle Cloud Infrastructure? a. Local NVMe SSDs on DenseIO and HPC compute shapes b. Block Volume Service c. File Storage d. Object Storage e. All of the above - ✔✔a. Local NVMe SSDs on DenseIO and HPC compute shapes b. Block Volume Service 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. 480MB/s per volume). The other 25 Gbps NIC is used for sending/receiving data to/from client nodes. File system client instances who mount the file system are provisioned using VM.Standard2.16 Compute shapes. What is the max IO theoretical throughput a client node can get? a. 3125 MB/s b. 2050 MB/s c. 4800 MB/s d. 6250 MB/s - ✔✔2050 MB/s OCI Block Volume Storage supports sharing a Block Volume among multiple compute instances in read/write or read only shareable mode. What file system should be used to allow multiple compute instances to read/write data concurrently without any data loss. a. Parallel File Systems like Lustre, IBM Spectrum Scale(GPFS), BeeGFS, etc b. Linux File Systems like XFS, EXT4, EXT3, etc c. Network File System (NFS) d. Distributed File Systems like Gluster, OCFS2, GFS2 - ✔✔a. Parallel File Systems like Lustre, IBM Spectrum Scale(GPFS), BeeGFS, etc d. Distributed File Systems like Gluster, OCFS2, GFS2 What are the two types of autoscaling available on OCI? Select two. a. Load based autoscaling b. Metrics based autoscaling c. Schedule based autoscaling d. Fault based autoscaling - ✔✔b. Metrics based autoscaling c. Schedule based autoscaling Which of the following is not a valid OCI load balancer shape? Select one. a. 10 Mbps b. 100 Mbps c. 400 Mbps d. 1000 Mbps e. 8000 Mbps - ✔✔1000 Mbps Which of the following options is not included in the OCI load balancer backend sets? Select one. a. A load balancing policy. b. A list of backend servers. c. Load balancer shape. d. A health check policy. e. Optional SSL handling. - ✔✔Load balancer shape.