Question 1

Which two statements are true about enabling write-back flash cache?

Options :

A :

Write-back flash cache is on by default for High Capacity Storage Servers in High Redundancy configurations.

B : Write-back Flash Cache cannot be used on Extreme Flash Storage Servers.

C :

When enabling write-back flash cache in a rolling manner, DBCLI should be used to inactivate the grid disks on all cells first.

D : Before write-back flash cache is enabled, you need to drop the Flash Cache first.

E : When enabling write-back flash cache in a non-rolling manner, you need to drop the Persistent Memory Commit Accelerator (PMEMLog) first.

Answer: A,D

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

Which statement is FALSE about the OEDA command line interface (OEDACU)?

Options :

A : Add nodes to and remove nodes from a VM cluster.

B : Add or remove additional databases.

C : Resize Oracle ASM disk groups.

D : Support ZDLRA life cycle management operation.

E : Add or remove Oracle Database home directories.

F : OEDACU has Edit mode and Deploy mode.

Answer: D

Question 4

Which two Exadata security features would you configure to control which databases can access which griddisks, when multiple databases share space on your storage servers in an unpartitioned storage grid?

Options :

A : Exadata storage realms using ASM-scoped security mode

B : File permissions on the griddisks in each database server

C : Using EXADCLI instead of CELLCLI to create the griddisks

D : File permissions on the griddisks in each storage server

E : Exadata storage realms using database-scoped security mode

Answer: A,E

Question 5

Which of the below is NOT a precaution that should be adhered to in order to ensure the site is safe and ready for

Options :

A : Do not use a flathead screwdriver to disconnect connector locks on LAN cables.

B :

Be sure that each grounding wire used for Oracle Exadata Rack is used exclusively for Oracle Exadata Rack.

C : Do not install Oracle Exadata Rack near a photocopy machine.

D : Do not place anything on top of Oracle Exadata Rack.

E : When using shared grounding, the grounding resistance must not be greater than 10 ohms.

F : Do not install Oracle Exadata Rack in a location that is exposed to direct sunlight.

Answer: C

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