[Jul 27, 2022] Get New 1Z0-902 Certification – Valid Exam Dumps Questions [Q28-Q47]

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[Jul 27, 2022] Get New 1Z0-902 Certification – Valid Exam Dumps Questions

100% Passing Guarantee – Brilliant 1Z0-902 Exam Questions PDF

Q28. Which of the following is NOT a requirement when validating, receiving, unpacking, and planning access route and space requirements for Exadata Database Machine?

The entire access route to the installation site should be free of raised-pattern flooring that can cause vibration.

914mm of space required above the rack height is required for maintenance access.

The incline of any access route ramp must be less than or equal to 6 degrees.

All four leveling and stabilizing feet should be raised and out of the way prior to moving the rack.

Oracle Exadata Rack may only be installed on raised floor environments.

A conditioned space is required to remove the packaging material to reduce particles before entering the data center.

Q29. You are hardening the security posture of your Exadata Database Machine. Before disabling ssh access to the storage servers, what should you do to enable REST access to the MS process?

Install Oracle Rest Data Services on each Database server and install the MS APEX application.

The MS Process on the storage servers is natively endowed with REST services, but are not enabled by default.

Install Oracle Rest Data Services on each Storage server and install the MS APEX application.

The MS Process on the storage servers is natively endowed with REST services and are enabled by default, however, appropriate roles and users should be created to ensure security.

Q30. You have configured a multirack Database Machine with two X9M-8 full racks all in a single cluster and storage grid comprising a total of 4 X9M-8 Database servers and 28 X9M-8 Storage servers.
Which two options are true regarding the servers on which Enterprise Manager agents must be deployed in order to monitor all components of this multirack configuration?

on at least two storage servers in both racks

on only one database server in both racks

on all database servers in the first rack

on all storage servers in both racks

on all database servers and at least two storage servers in both racks

on all database servers in the second rack

on all database servers in both racks and one storage server in each rack

Q31. Which two sections of the AWR report shows statistics for X9M Persistent Memory Cache?

PMEM Pool cache Read Hits in the Cache Sizes portion of the Report Summary

PMEM Pool Misses in the Exadata Outlier Summary

cell PMEM cache Read Hits in the Database IOs portion of the Performance Summary

PMEM Cache section within Memory Statistics

PMEM Cache section within Exadata Smart Statistics

Q32. What is the minimum Oracle Linux version required to support RoCE and Persistent Memory?

Oracle Linux 7.5

Oracle Linux 6.9

Oracle Linux 8.0

Oracle Linux 7.7

Q33. Which are two valid reasons for executing an X9M-2 Exadata storage server rescue procedure?

the failure of physical disk 1

corruption in the / (root) filesystem

the failure of both physical M.2 disks

the failure of physical disk 0 and 11

moving all disks from one cell to another as part of a chassis-level component failure

accidental loss of all data from all griddisks in a storage server

corruption in a normal or high redundancy ASM diskgroup

Q34. Which two statements are correct about adding an additional database server to a physical Exadata X9M Database Machine using Oracle Exadata Deployment Assistant (OEDA)?

Do not proceed if the OEDA Validate Configuration File step displays an error message about missing files p6880880.zip.

Executing /opt/oracle.supportTools/reclaimdisks.sh -free -reclaim on each Exadata X9M Database server is required to reclaim disk space and perform partition reconfiguration.

In order to configure the servers with Oracle Exadata Deployment Assistant (OEDA), the new server information must be entered in OEDA, and the configuration file must contain existing nodes.

The applyElasticConfig.sh script performs network configuration for the new servers. The new servers are restarted at the end of the process.

It is required to install OEDA on the first new database server.

Q35. 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?

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

# xfs_growfs /uOl +20G

# resize2fs +20G /dev/VGExaDb/LVDbOral

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

Q36. Which statement is true about the patching features provided in Platinum Services?

Oracle Platinum Service covers Exadata storage software and firmware patching, but customers must perform the database patching.

Patching services are available for the full software stack up to twice per year.

The rolling and complete down time approaches are two options to patching.

Patching is done automatically during business hours.

Q37. Which two statements are true about the initial storage configuration after the standard (non-virtualized) deployment of a new Exadata Database Machine with High Capacity storage servers?

The sparse_<DBM_NAME> diskgroup is created automatically.

There is free space available on the hard disks inside the database servers for possible extension of the /uoi file system.

The DATA_<DBM_Name> and RECO_<DBM_NAME> ASM diskgroups are built on with DATA on the outer-most tracks and RECO on the inner-most tracks of the physical disk.

There is free space available on flashdisks inside the Exadata storage servers for possible use for storage indexes.

There is free space available on flashdisks inside the Exadata storage servers to configure Exadata Smart Flash Logs.

Q38. Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

Consult My Oracle Support note 888828.1 to determine the current recommended Exadata software release.

Check the Exadata Critical Issues My Oracle Support note 1270094.1 for any issues not added to the latest version of exachk.

Run exachk and resolve only WARNINGS that you have not seen before.

Run the appropriate patchmgr preqequisite check step for each component being updated.

Run patchmgr –all_comp -autofix -autobackup -upgrade -rolling.

For database servers, perform a server backup using patchmgr -dbnodes db_list_file -backup -rolling.

Q39. You have a script with several CELLCLI commands that must be executed on each cell in your Exadata full rack. The script must run on each cell simultaneously. How must you achieve this?

Copy and execute the script on all storage servers using the EXACLI command.

Copy the script to all storage servers using the dcli command and manually execute it on all storage servers using the EXACLI command.

Copy and execute the script on all storage servers using the dcli command.

Copy the script to all storage servers using the dcli command and manually execute it on each storage server using the DCLI command.

Copy the script to all storage servers using the CELLCLI command and execute it on all storage servers in parallel using the CELLCLI command.

Q40. You have been asked to investigate why an Exadata Database Server stopped communicating on the client network for 10 minutes over the past weekend.
Which command would help investigate this?

$ ${ORACLE_HOME}/suptools/tfa/release/tfa_home/bin/tfact1 -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

# /opt/oracle.SupportTools/ibdiagtools/netcheck/runDiagnostics.pm -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

# /opt/oracle.ExaWatcher/GetExaWatcherResults.sh -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

# /opt/oracle.SupportTools/exachk/exachk -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

Q41. How do ASM failure groups provide redundancy?

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.

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

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

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

Q42. Which three steps are required to expand an Exadata X9M-2 Database Server with the lowest memory configuration available to the highest memory configuration?

Add 12x 32GB DIMMs.

Add 12x 64GB DIMMs.

Shutdown the Database Server if running.

Add 16x 32GB DIMMs.

Add 16x 64GB DIMMs.

Memory cannot be expanded on Exadata X9M-2 Database Servers.

Remove existing memory modules.

Add 32x 64GB DIMMs.

Add 24x 32GB DIMMs.

Q43. Which are two correct statements about backing up Exadata Database Machine?

Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server.

Backing up Exadata Storage Server Software is critical for restoration.

For high availability, system area can be on the first two disks and M.2 devices.

The M.2 disk is hot pluggable and can be replaced when the power is on, but you will have to restore the system data manually.

Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.

Q44. What are two recommended configuration best practices for backup and recovery on Exadata?

Placing the backup network on dedicated switches installed in the top of the rack (ToR) has the benefits of isolating the backup network from other workloads and providing a greater level of control.

Even if the backup was limited to writing to four tape drives, eight channels could be specified to expedite the restore process.

The internal Recovery Appliance backup and restore processing is optimized when the RMAN FILESPERSET parameter is set to 1 for the level 1 incremental backup set.

When off-site long-term backup retention is needed, use Oracle Database Backup Cloud Service as a low-cost, offsite scalable storage for a disaster recovery solution.

Q45. Which dbmcli command is NOT valid on Exadata X9M?

dbmcli -e “LIST METRICHISTORY WHERE name LIKE ‘DS_.*'”
B) dbmcli -e “LIST METRICCURRENT WHERE name = ‘DS_TEMP’ “

dbmcli -e “LIST IBPORT DETAIL”

dbmcli -e “LIST ALERTHISTORY WHERE agelnMinutes < 15”

Q46. Which two statements are true about Auto Service Request (ASR) with an Exadata Database Machine?

ASR Manager must be installed and configured on a dedicated server external to the Database Machine.

Configuring ASR is mandatory for all Database Machine assets.

ASR Manager must be installed and configured on one of the database servers.

ASR can upload configuration metadata to support problem resolution.

ASR Manager opens a service request (SR) automatically after sensors detect hardware faults.

ASR communicates with Oracle support services using HTTPS.

Q47. How is Exadata Secure RDMA Fabric isolation used in X9M-2 with virtualization enabled?

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.

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.

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.

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.

Oracle 1Z0-902 Exam Syllabus Topics:

Topic	Details
Topic 1	Use the CellCLI, ExaCLI, DCLI and ExaDCLI Exadata administration tools in various situations Reconfigure the Exadata Database Machine to use a single power cable
Topic 2	Describe physical site requirements and safety best practices for implementing Exadata Describe Exadata Remote Direct Memory Access (RDMA) and Client network architecture
Topic 3	Describe Oracle Configuration Manager (OCM) and how it relates to Exadata Database Machine Explain the impact of various diskgroup failure group choices
Topic 4	Use Exadata Software to deploy an update to an Exadata Database Machine without downtime Configure Exadata Database virtual deployment using Oracle Exadata Deployment Assistant
Topic 5	Install and configure Oracle Exadata using Oracle Exadata Deployment Assistant Use Cloud Control or DBMCLI to monitor Exadata Database Machine Database Servers
Topic 6	Safely shut down a single Exadata Storage Server Describe the function of Oracle Exadata Configuration Assistant and Oracle Exadata Deployment Assistant
Topic 7	Use Exadata Software to troubleshoot client network disconnect Exadata Database Machine Architecture and Key Capabilities
Topic 8	Describe the deployment options of Exadata including Virtualization and Bare Metal Add additional storage to Exadata Database Servers

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[Jul 27, 2022] Get New 1Z0-902 Certification – Valid Exam Dumps Questions [Q28-Q47]

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