Jan-2025 Oracle 1Z0-902 Certification Real 2025 Mock Exam [Q38-Q55]

4/5 - (1 vote)

Jan-2025 Oracle 1Z0-902 Certification Real 2025 Mock Exam

1Z0-902 Exam Questions and Valid PMP Dumps PDF

Oracle 1z1-902 certification exam is an essential certification for IT professionals who want to demonstrate their expertise in implementing Oracle Exadata Database Machine X8M. It provides a comprehensive understanding of the technology and the skills needed to manage and implement the database machine efficiently. Passing this certification exam can open new career opportunities and pave the way for professional growth.

To pass the Oracle 1z1-902 exam, candidates must have a strong understanding of the Oracle Exadata Database Machine X8M architecture, configuration, and management. They must also be proficient in implementing and managing key features, such as Smart Scan, Smart Flash Cache, and Hybrid Columnar Compression. Additionally, candidates must have a solid understanding of database administration and performance tuning concepts, as well as experience in using Oracle Enterprise Manager to manage and monitor the Oracle Exadata Database Machine X8M. With the Oracle 1z1-902 certification, IT professionals can demonstrate their expertise in implementing and managing this powerful technology, and gain a competitive advantage in the job market.

NEW QUESTION 38
You are planning the monitoring configuration for your Exadata X9M Database Machine.
Which three components are monitored directly through the use of Exadata-specific Enterprise Manager Plug-Ins?

ASM instances

Hybrid Columnar Compression (HCC) ratios on Extended (XT) storage servers

the storage server ILOM

the Power Distribution Units (PDUs)

Oracle clusterware on the database server

the RDMA over Converged Ethernet (RoCE) switches

NEW QUESTION 39
Which two statements are true about Exadata System Software metrics and alerts on an Exadata Database Machine?

Metric alerts are never stateful.

Metric thresholds, if set, will persist across storage and database server reboots.

SMTP metric alert notifications must be sent to both ASR manager and Enterprise Manager agents.

Metric alert notifications can be sent to only one destination such as Enterprise Manager OR SNMP OR SMTP.

Metrics have no thresholds set on them by default.

NEW QUESTION 40
For which four component failures on an X9M Database Machine does Auto Service Request (ASR) raise service requests?

RoCE network interface cards in the storage servers

fans in the storage servers

Cisco RDMA over Converged Ethernet (RoCE) switches

RoCE network interface cards in the database servers

power distribution units

Cisco management switch

power supplies in the database servers

NEW QUESTION 41
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 42
Exadata X9M enables virtualization using KVM. Which statement is true about virtualization on Exadata X9M?

Up to 12 virtual guests per X9M-2 database server are supported. If the database server memory has 384GB and Exadata Secure RDMA Fabric isolation is configured 8 guests are supported

Up to 12 virtual guests per X9M-2 database server are supported.

Exadata X9M-8 supports up to 48 virtual guests regardless if Exadata Secure RDMA Fabric Isolation is configured.

Oracle KVM Manager should be installed on at least two Database servers per Exadata rack.

Virtual guests from X8 and earlier can be migrated to X9M using VM Guard.

NEW QUESTION 43
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?

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

CeLLCLI> list GRIDDISK where status != ‘inactive’ on the affected storage server

‘crsct1 stop cluster -all’ on one of the database servers

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

CellCLI alter GRIDDISK all inactive on the affected storage server

shutdown -h now’ on the affected storage server

NEW QUESTION 44
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 45
You are planning the monitoring configuration for your Exadata X9M Database Machine.
Which three components are monitored directly through the use of Exadata-specific Enterprise Manager Plug-Ins?

ASM instances

Hybrid Columnar Compression (HCC) ratios on Extended (XT) storage servers

the storage server ILOM

the Power Distribution Units (PDUs)

Oracle clusterware on the database server

the RDMA over Converged Ethernet (RoCE) switches

NEW QUESTION 46
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 47
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 48
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.

NEW QUESTION 49
You use Enterprise Manager to monitor all the components of your Exadata Database Machine.
Recently, you discovered that certain asmdisks were offline in one of the diskgroups used by the rac database called prod.
In which two sources would you find diagnostic messages related to this problem?

alert logs for Enterprise Manager

alert logs for the ASM instances

Enterprise Manager Alerts on the Exadata Storage Server Grid home page

Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances

alert logs for the prod database instances

NEW QUESTION 50
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?

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

CeLLCLI> list GRIDDISK where status != ‘inactive’ on the affected storage server

‘crsct1 stop cluster -all’ on one of the database servers

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

CellCLI alter GRIDDISK all inactive on the affected storage server

shutdown -h now’ on the affected storage server

NEW QUESTION 51
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 52
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 53
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 54
What is the minimum Exadata System Software version required for Exadata X9M?

20.1.1.0.0

19.2.1 0.0

21.2.0.0.0

19.3.0.0.0

18.1.3.0.0

21.3.0.0.0

NEW QUESTION 55
What type of SRs does the ASR Manager generate for Exadata?

hardware assets

backup and restore failures

operating system components

data entry errors