Oracle 1Z0-902 Deluxe Study Guide with Online Test Engine [Q12-Q29]

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Oracle 1Z0-902 Deluxe Study Guide with Online Test Engine

1Z0-902 dumps review – Professional Quiz Study Materials

NEW QUESTION 12
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

NEW QUESTION 13
Which statement is true about the Persistent Memory Commit Accelerator?

Persistent Memory Commit Accelerator tracks changes to Persistent Memory Data Accelerator to ensure duplicate blocks are not written to Flash.

Persistent Memory Commit Accelerator helps to further reduce redo log write latency by using Persistent Memory and Remote Direct Memory Access (RDMA).

Persistent Memory Commit Accelerator copies redo log data from disk for faster redo apply on Data Guard Standby Databases.

Persistent Memory Commit Accelerator contains logging information from all tiers of the software stack for rapid triage and diagnostics.

Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk.

NEW QUESTION 14
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

NEW QUESTION 15
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.

NEW QUESTION 16
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.

NEW QUESTION 17
Which two quarantine types can disable Smart Scan for multiple databases that offload SQL statements to a cell on an Exadata Database Machine?

SQL Plan Quarantine

Manually created Quarantine

Database Quarantine

Disk Region Quarantine

Cell Offload Quarantine

NEW QUESTION 18
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.

NEW QUESTION 19
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

NEW QUESTION 20
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.

NEW QUESTION 21
An Exadata storage server physical disk on an X9M-2 high-capacity full rack entered the predictive failure state. Which two steps must you perform to replace this failed physical disk?

Replace the failed physical disk.

Add the griddisks back into the ASM diskgroup they used to be a member of.

Identify the griddisks located on the failed physical disk and drop them from the associated ASM diskgroups.

Rebalance the data on the effected griddisks before performing a manual drop command.

Create a new celldisk and new griddisks on the replaced physical disk.

Verify that the griddisks located on the physical disk have been successfully dropped from the associated ASM diskgroups.

NEW QUESTION 22
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.

NEW QUESTION 23
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.

NEW QUESTION 24
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

4,1, 6, 9

10, 8, 9, 11

7,6,9,11

NEW QUESTION 25
Which two statements are false about backup to ZFS Storage Appliance (ZFSSA)?

ZFSSA may connect directly to the Exadata 100Gb RoCE network switches.

Top of Rack (ToR) switches are managed as part of the hardware stack and software levels are upgraded during the patching process.

When backing up multi-rack systems, sharing Exadata X9M switches is recommended.

ZFS Snapshots can provide rapid cloning of development and test environment.

NEW QUESTION 26
You have been notified by your Network Administrator that an upstream switch has been replaced due to a hardware fault. Which command verifies that the client network on your Exadata X9M-2 Database Server is available via both client switches?

ifconfig -a legrep “re0| re1”

/opt/oracle.SupportTools/ibdiagtools/checkbadlinks.p1 -all

netstat -rn

cat /proc/net/bonding/bondeth0

NEW QUESTION 27
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.

NEW QUESTION 28
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

NEW QUESTION 29
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.

By passing the Oracle 1z1-902 exam, individuals can demonstrate their knowledge and expertise in implementing and managing Oracle Exadata Database Machine X8M systems. Oracle Exadata Database Machine X8M Implementation Essentials certification can help individuals enhance their career prospects and open up new opportunities in the field of database administration and management.

Oracle 1z1-902 certification exam is designed for professionals who want to validate their knowledge and skills in implementing and managing Oracle Exadata Database Machine X8M systems. Oracle Exadata Database Machine X8M Implementation Essentials certification exam is intended for individuals who have already gained experience in database administration, database design, and Oracle technologies. Passing 1Z0-902 exam is a great achievement and can open up new opportunities for professionals looking to advance their careers.

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