Question 1

You are adding a disk expansion kit to a running Exadata X8M Database Machine's Database Servers, and have a filesystem layout that includes:

After running the following commands, which command needs to be run to add 20G of space to the filesystem mounted on /u01?

Options :

A : # lvextend -L +20G —verbose /dev/mapper/VGExaDb-LVDbOral

B : # xfs_growfs /uOl +20G

C : # resize2fs +20G /dev/VGExaDb/LVDbOral

D : # lvextend -L +20G —verbose /dev/VGExaDb/LVDbOral

Answer: A

Question 2

How is Exadata Secure RDMA Fabric isolation used in X9M-2 with virtualization enabled?

Options :

A :

With Secure Fabric isolation, each Storage Server runs multiple KVM guests each dedicated to a Database VM cluster using a dedicated network partition and VLAN ID. This provides security and isolation between multiple tenants or VM clusters.

B :

With Secure Fabric isolation, each Database VM Guest uses a dedicated network partition and VLAN ID for client networking between application servers. This improves security by preventing man in the middle attacks.

C :

With Secure Fabric isolation, each Database VM Cluster uses a dedicated network partition and VLAN ID for Data Guard networking between the primary and disaster recovery Exadata racks. This improves security by isolating data guard traffic onto an encrypted network between data centers.

D :

With Secure Fabric isolation, each Database VM cluster uses a dedicated network partition and VLAN ID for cluster networking between the database servers in the VM Cluster. This provides security and isolation between multiple tenants or VM clusters.

Answer: D

Question 3

How do ASM failure groups provide redundancy?

Options :

A :

Failure groups are created for each grid disk to ensure mirror copies are written to the same storage server for faster recovery after a physical disk failure.

B :

Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.

C :

They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.

D : Extended Redundancy mirrors data across data centers providing the highest levels of data protection.

Answer: B

Question 4

You are monitoring PMEM cache to see if it is being used effectively with RDMA. Which two of these sources contain information about the RDMA I/O statistics?

Options :

A : PMEM Cache Space Usage section in AWR Report

B : PMEM Cache User Reads section in AWR Report

C : Database lOs section in AWR Report

D : Database Statistics (v$ View)

E : Exadata Metrics (LIST METRICCURRENT)

Answer: B,E

Question 5

You have been tasked with replacing a memory module of an Exadata Storage Server and need to power off the affected storage server. Which two commands must you execute to safely power off the storage server in an Exadata X9M Database Machine?

Options :

A : CeLLCLI> alter cell shutdown SERVICES all on the affected storage server

B : CeLLCLI> list GRIDDISK where status != 'inactive' on the affected storage server

C : 'crsct1 stop cluster -all' on one of the database servers

D :

CellCLI LIST GRIDDISK ATTRIBUTES name WHERE asmdeactivationoutcome != 'Yes' on the affected Storage server

E : CellCLI alter GRIDDISK all inactive on the affected storage server

F : shutdown -h now' on the affected storage server

Answer: E,F

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