1z1-902 Valid Exam Book | Test 1z1-902 Guide Online

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Oracle 1z1-902 Certification Exam is designed to validate the skills and knowledge of IT professionals who are tasked with implementing the Exadata Database Machine X8M. 1z1-902 exam covers a wide range of topics, including the installation and configuration of Exadata storage servers, the configuration of network components, and the management and administration of Oracle databases on the Exadata platform.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q50-Q55):

NEW QUESTION # 50
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?

A. cat /proc/net/bonding/bondeth0
B. netstat -rn
C. /opt/oracle.SupportTools/ibdiagtools/checkbadlinks.p1 -all
D. ifconfig -a legrep "re0| re1"

Answer: C

NEW QUESTION # 51
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?

A. to an administrator-created storage server user with appropriate privileges on celldisk objects by calling CELLCLI on all cells using exadcli
B. to the CELLMONITOR account calling CELLCLI on all cells using DCLI
C. to the CELLADMIN account by calling CELLCLI on all cells using DCLI
D. to the CELLMONITOR account using cellcli interactively on each storage server
E. to the CELLADMIN account using cellcli interactively on each storage server
F. to an administrator-created storage server user with appropriate privileges on celldisk objects by calling EXACLI on all cells using exadcli

Answer: A,B,D

NEW QUESTION # 52
You want to monitor how a large production table is accessed. Especially, you are interested to see how the access on that particular table leverages the benefits of the Exadata Platform.
Which two actions are NOT appropriate for that purpose?

A. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.
B. You query v$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.
C. You run the CellCli-command list activerequest , filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS.
D. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.

Answer: A,B

Explanation:
The two actions that are not appropriate for monitoring how a large production table is accessed in order to leverage the benefits of the Exadata Platform are A) querying VSSYSTEMEVENTS and filtering for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table; and B) querying v$segmentstatistics and filtering for the Object ID of your table from dbaobjects and the the column STATISTICNAME='optimized physical reads'. Instead, you should query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table (C), or run the CellCli-command list activerequest, filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS (D). These two methods are outlined in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (Chapter 8, Monitoring the Exadata Database Machine).

NEW QUESTION # 53
Which are two correct statements about backing up Exadata Database Machine?

A. Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server.
B. For high availability, system area can be on the first two disks and M.2 devices.
C. 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.
D. Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.
E. Backing up Exadata Storage Server Software is critical for restoration.

Answer: A,E

Explanation:
[1] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 4: Oracle Clusterware [2] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 8: Oracle Exadata Storage Server Software [3] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 9: Oracle Exadata Storage Server Infrastructure
https://www.oracle.com/technetwork/database/availability/exadata-backup-recovery-bp-3633870.pdf

NEW QUESTION # 54
Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

A. Consult My Oracle Support note 888828.1 to determine the current recommended Exadata software release.
B. For database servers, perform a server backup using patchmgr -dbnodes db_list_file -backup -rolling.
C. Run patchmgr --all_comp -autofix -autobackup -upgrade -rolling.
D. Run the appropriate patchmgr preqequisite check step for each component being updated.
E. Check the Exadata Critical Issues My Oracle Support note 1270094.1 for any issues not added to the latest version of exachk.
F. Run exachk and resolve only WARNINGS that you have not seen before.

Answer: A,B,D,E

Explanation:
For database servers, perform a server backup using patchmgr -dbnodes dblistfile -backup -rolling. This is according to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book . The other statement is false as exachk should not be used to resolve warnings or errors [1], but rather to identify them so that they can be addressed. Additionally, patchmgr should not be used with the --autofix, --autobackup, --upgrade, or --rolling flags as this could cause unexpected issues.

NEW QUESTION # 55
......

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1z1-902 Valid Exam Book | Test 1z1-902 Guide Online

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q50-Q55):

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