Verified 1z1-902 Dumps Q&As – 1z1-902 Test Engine with Correct Answers [Q31-Q52]

QUESTION 31
Which two activities are supported on the storage servers in an Exadata Database Machine?

changing the root password

upgrading a device driver for hard disks when inserting a replacement disk after a hard disk failure

installing an alternative package manager

upgrading the Storage Server software package using rpm

configuring secure shell user equivalency for the cellmonitor user

QUESTION 32
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.

QUESTION 33
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.

QUESTION 34
You must drop all celldisks on all the storage servers in an X9M-2 quarter rack as part of a reconfiguration project.
Which three statements describe the account on the storage servers which you should use and the tool that may be used to drop the celldisks?

to the CELLADMIN account by calling CELLCLI on all cells using DCLI

to an administrator-created storage server user with appropriate privileges on celldisk objects by calling CELLCLI on all cells using exadcli

to the CELLMONITOR account using cellcli interactively on each storage server

to an administrator-created storage server user with appropriate privileges on celldisk objects by calling EXACLI on all cells using exadcli

to the CELLMONITOR account calling CELLCLI on all cells using DCLI

to the CELLADMIN account using cellcli interactively on each storage server

QUESTION 35
Which two of the following network connection types can be deployed on the client network ports of an Exadata X9M-2 Database Server?

2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fiber cable for backup network, and 2x 25Gb ports on eth5 and eth6 using SFP28 transceivers and OM4 fiber cable for client network

2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fibre cable for client network, and 2x 10Gb ports on eth9 and eth10 using RJ45 cat6 cable for backup network

2x 10Gb ports on eth1 and eth2 using FU45 cat6 cable for client network, and 2x 25Gb ports on eth11 and eth12 using SFP28 transceivers and OM4 fiber cable for backup network

2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fiber cable for backup network, and 2x 10Gb ports on eth3 and eth4 using RJ45 cat6 cable for client network

QUESTION 36
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.

QUESTION 37
Your customer needs to ensure that their data is available on the Exadata machine during updates. The customer wants to be able to update one server at a time but still be protected against single-node server failure.
What ASM redundancy level should they use?

Normal

Sparse

High

External

Extended

QUESTION 38
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.

QUESTION 39
What is the maximum DRAM capacity you can expand an X9M-2 DB Server?

1536GB

512GB

2048GB

768GB

1024GB

384GB

QUESTION 40
Which are two correct statements for managing virtual deployment using Oracle Exadata Deployment Assistant (OEDA)?

OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack.

There is no limit on the number of VMs in an Exadata rack as long as the Exadata rack has adequate resources.

OEDA deployment steps include calibrate cells, create cell disks, and resecure machine.

OEDA sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA.

QUESTION 41
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.

Oracle Platinum Services provides patching features for the full software stack, which includes operating systems, virtualization, storage software and firmware, and databases. This service is typically performed up to twice per year, allowing customers to schedule the patching at their convenience. The patching is usually done to keep the software and firmware up-to-date and to fix any known security vulnerabilities. It’s important to note that patching services are not done automatically during business hours, customer’s involvement and schedule is needed, and the rolling and complete downtime approaches are options to minimize the impact on the system during patching.
The correct statement about the patching features provided in Platinum Services is that patching services are available for the full software stack up to twice per year. Oracle Platinum Service covers Exadata storage software and firmware patching, and customers must also perform the database patching. The rolling and complete down time approaches are two options for patching, and patching should be scheduled for times when the system is not being heavily used. Patching is not done automatically during business hours. This is covered in section 4.13 of the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources [1].
[1] https://docs.oracle.com/en/engineered-systems/exadata-database-machine/x9m/exad-implementing-database-machine-x9m.pdf Search results: [1] Oracle Exadata Storage Server Patching [1][2]. Oracle Exadata Storage Server patching is performed by a team of Oracle engineers [3][2], and includes the latest Oracle… [2] Patching and Upgrades. Oracle Database Machine provides automated patching and upgrades for the full Exadata software stack, up to twice a year, with… [3] Virtualized Exadata. Oracle Database Machine X9M-2 comes with a choice of two patching approaches to accommodate different customer needs: Rolling… [4] Jan 10, 2017 … Exadata Patching Process. Oracle Exadata Storage Server patching is performed by a team of Oracle engineers [3][2], and includes the latest…

QUESTION 42
Which two statements are true for the Oracle Exadata Configuration Assistant (OECA)?

OECA reconfigures the size of disk groups and recreates grid disks.

OECA extends the hardware for the elastic configuration only.

OECA allows one XT storage server in the configuration.

OECA’s “Add Equipment” input option allows allocation of RU slots for customer equipment.

OECA facilitates PDU power selection initially and after equipment addition.

QUESTION 43
Which two statements are true about applying updates on Exadata systems?

Failed storage server updates are automatically rolled back to a previous release.

To speed up applying storage server updates in a rolling manner, updating two storage servers simultaneously is recommended.

Updating kernel and RDMA packages on storage cells should be prevented by excluding them with the yum -exclude option.

For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.

Failed database server updates are rolled back to a working state on a previous release automatically.

When running a “yum update” for a new Exadata release, all other repositories should be disabled.

QUESTION 44
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.

QUESTION 45
A new Exadata Quarter Rack with 2 Database Servers and 3 HC Storage Servers and 3-phase 15kVA PDUs is being installed in a Data Center. However, the Data Center is only providing enough power for a single cable from each PDU.
Which statement is correct?

The installation can go ahead, no change is required.

The installation cannot proceed until two power feeds are available per PDU.

A splitter cable can be used to provide power to all PDU cables.

The power cables from the servers to the PDUs can be rearranged inside the rack following OECA guidance to utilize a single PDU power cable.

QUESTION 46
You are providing oversight for the delivery of a new Exadata Database Machine.
1. Stabilize the Exadata Rack.
2. Unpack Oracle Exadata Rack.
3. Review the safety guidelines.
4. Let the Exadata acclimatize for 24 hours.
5. Power on Exadata PDU A.
6. Place Exadata in its allocated space.
7. Power on Exadata PDU B.
What is the correct order of these steps?

4,3,2,6,1,7,5

3,2,6,4,1,7,5

2,3,4,6,1,7,5

3,2,6,1,4,7,5

2,6,1,4,3,7,5

QUESTION 47
You are concerned about the operating temperature of the database servers in your Exadata Full Rack and want to be alerted if the server exceeds 30C.
What command should use use to generate alerts for such an event?

dbmcli -e “set alert ds_temp> 30” on each database server

dbmcli -e “set threshold ds_temp comparison=’ >’, critical=30” on each database server

dbmcli -e “alert metriccurrent ds_temp where metricValue > 30” on each database server

dbmcli -e “create threshold ds_temp comparison=’>’, critical=30” on each database server

QUESTION 48
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?

Exadata storage realms using ASM-scoped security mode

File permissions on the griddisks in each database server

Using EXADCLI instead of CELLCLI to create the griddisks

File permissions on the griddisks in each storage server

Exadata storage realms using database-scoped security mode

QUESTION 49
Which are two correct statements for managing virtual deployment using Oracle Exadata Deployment Assistant (OEDA)?

OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack.

There is no limit on the number of VMs in an Exadata rack as long as the Exadata rack has adequate resources.

OEDA deployment steps include calibrate cells, create cell disks, and resecure machine.

OEDA sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA.

QUESTION 50
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.

QUESTION 51
You have been asked by Oracle Support to check the firmware of the hard & flash disks in a storage server. Which cellcli command should you use to get this information?

list celldisk attributes name, deviceName, diskType, physicalFirmware

list cell attributes name, deviceName, diskType, physicalFirmware

list physicaldisk attributes name, deviceName, diskType, physicalFirmware

list devices attributes name, deviceName, diskType, physicalFirmware

QUESTION 52
You have been asked to design a backup solution for an Exadata X9M-2 Quarter Rack with Extreme Flash Storage Servers connected to a new ZFS Storage Appliance ZS7 with 2 Storage Controllers with 100Gb Ethernet cards and 3 Storage Trays. You are using Oracle Exadata Configuration Assistant to validate the rack layout.
1. Use “Add Equipment” to add the Exadata X9M EF Storage Servers, starting from RU10.
2. Use drop down to add ZFS Storage Appliance Controllers.
3. You cannot add ZFS Storage Appliance to an Exadata Rack.
4. Use “Add Equipment” to add the ZFS Storage Trays, starting from RU1.
5. Use drop down to add ZFS Storage Trays.
6. Use “Add Equipment” to add the Exadata X9M Database Servers, starting from RU16.
7. Use “Add Equipment” to add the Exadata X9M EF Storage Servers, starting from RU1.
8. Use drop down to add Exadata X9M EF Storage Servers.
9. Use “Add Equipment” to add the ZFS Storage Controllers, starting from RU27.
10. Use drop down to add Exadata X9M Database Servers.
11. Use “Add Equipment” to add the ZFS Storage Trays, starting from RU31.
Which of these steps are correct and what is their correct order?

10, 8, 2, 5

44, 6, 9

3

10, 8, 9, 11

7,6,9,11

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Verified 1z1-902 Dumps Q&As – 1z1-902 Test Engine with Correct Answers [Q31-Q52]

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