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1Z0-902 Certification Sample Questions certification Exam
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For those of you who are looking for the Oracle 1Z0-902 Exam, you should follow the steps mentioned below to register and pass the exam easily.
Log in to the Oracle website and go to the homepage.
Step 1: Choose “Exam” from the left menu bar.
Step 2: Click on “Oracle Certification” and then click on “Register for Exam”.
Step 3: Enter your login information and then click on “Submit”.
Step 4: Fill in the details of the exam.
Step 5: Pay the exam fee and then click on “Next”.
Step 6: choose your password and then click on “Confirm Password”.
Step 7: choose the exam centre.
Step 8: Then, enter your date of birth and click on “Submit”.
Step 9: You will be asked to provide a phone number and an email address. You may choose to receive a text message to confirm your identity.
Step 10: Then, you will receive a confirmation message for your application.
NEW QUESTION 18
Which are two valid reasons for executing an X9M-2 Exadata storage server rescue procedure?
- A. accidental loss of all data from all griddisks in a storage server
- B. corruption in a normal or high redundancy ASM diskgroup
- C. corruption in the / (root) filesystem
- D. the failure of both physical M.2 disks
- E. moving all disks from one cell to another as part of a chassis-level component failure
- F. the failure of physical disk 1
- G. the failure of physical disk 0 and 11
Answer: C,G
Explanation:
The rescue procedure is necessary when system disks fail, the operating system has a corrupt file system, or there was damage to the boot area. If only one system disk fails, then use CellCLI commands to recover. In the rare event that both system disks fail simultaneously, you must use the Exadata Storage Server rescue functionality provided on the Oracle Exadata Storage Server Software CELLBOOT USB flash drive.
NEW QUESTION 19
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 an administrator-created storage server user with appropriate privileges on celldisk objects by calling EXACLI on all cells using exadcli
- C. to the CELLADMIN account by calling CELLCLI on all cells using DCLI
- D. to the CELLADMIN account using cellcli interactively on each storage server
- E. to the CELLMONITOR account using cellcli interactively on each storage server
- F. to the CELLMONITOR account calling CELLCLI on all cells using DCLI
Answer: A,E,F
NEW QUESTION 20
What are two recommended configuration best practices for backup and recovery on Exadata?
- A. 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.
- B. 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.
- C. 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.
- D. Even if the backup was limited to writing to four tape drives, eight channels could be specified to expedite the restore process.
Answer: C,D
NEW QUESTION 21
Which three of the following options are available for database consolidation on Exadata?
- A. Multiple pluggable databases in one or more container databases on a Virtual Machine or Bare Metal cluster
- B. A single database with one or more schema per application
- C. Multiple databases spanning a Bare Metal and Virtual Machine cluster to provide resource isolation and consolidation concurrently
- D. Multiple Virtual Machine clusters supporting a single database for greatest resource isolation
- E. Multiple Databases on a cluster
- F. Bare Metal deployment with one database per database server
Answer: A,D,E
NEW QUESTION 22
Which two sections of the AWR report shows statistics for X9M Persistent Memory Cache?
- A. PMEM Pool cache Read Hits in the Cache Sizes portion of the Report Summary
- B. PMEM Pool Misses in the Exadata Outlier Summary
- C. cell PMEM cache Read Hits in the Database IOs portion of the Performance Summary
- D. PMEM Cache section within Exadata Smart Statistics
- E. PMEM Cache section within Memory Statistics
Answer: E
NEW QUESTION 23
I/O performance of the prod database on your Exadata Database Machine has degraded slightly over the past month. The database has been allocated to the OLTP I/O Resource Management (IORM) category.
Which two monitoring tools might be useful in examining I/O performance for the prod database?
- A. cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk
- B. I/O-specific dynamic performance views such as v$iostat_fiie, v$iostat_function, and v$iostat_consumer_group from the prod
database instances using SQL *p1us - C. OS I/O metrics using Enterprise Manager host pages for the storage servers
- D. OS I/O metrics using OS tools such as iostat on the database servers
- E. OS I/O metrics using OS tools such as iostat on the storage servers
Answer: A,D
NEW QUESTION 24
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. netstat -rn
- B. ifconfig -a legrep "re0| re1"
- C. cat /proc/net/bonding/bondeth0
- D. /opt/oracle.SupportTools/ibdiagtools/checkbadlinks.p1 -all
Answer: D
NEW QUESTION 25
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?
- A. Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances
- B. alert logs for the ASM instances
- C. Enterprise Manager Alerts on the Exadata Storage Server Grid home page
- D. alert logs for Enterprise Manager
- E. alert logs for the prod database instances
Answer: A,C
NEW QUESTION 26
For which four component failures on an X9M Database Machine does Auto Service Request (ASR) raise service requests?
- A. RoCE network interface cards in the storage servers
- B. fans in the storage servers
- C. power supplies in the database servers
- D. power distribution units
- E. Cisco RDMA over Converged Ethernet (RoCE) switches
- F. Cisco management switch
- G. RoCE network interface cards in the database servers
Answer: A,C,E,F
NEW QUESTION 27
An Exadata X9M-2 Elastic Rack with 4 Database Servers and 8 HC Storage Servers and 3-phase 24kVA 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?
- A. The installation can go ahead, no change is required.
- B. A splitter cable can be used to provide power to all PDU cables.
- C. The installation cannot proceed until two power feeds are available per PDU.
- D. 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.
Answer: D
NEW QUESTION 28
Which two statements are true for the Oracle Exadata Configuration Assistant (OECA)?
- A. OECA allows one XT storage server in the configuration.
- B. OECA's "Add Equipment" input option allows allocation of RU slots for customer equipment.
- C. OECA reconfigures the size of disk groups and recreates grid disks.
- D. OECA facilitates PDU power selection initially and after equipment addition.
- E. OECA extends the hardware for the elastic configuration only.
Answer: A,B
NEW QUESTION 29
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?
- A. on all database servers and at least two storage servers in both racks
- B. on at least two storage servers in both racks
- C. on all database servers in both racks and one storage server in each rack
- D. on only one database server in both racks
- E. on all storage servers in both racks
- F. on all database servers in the second rack
- G. on all database servers in the first rack
Answer: E,G
NEW QUESTION 30
Examine this list of software components:
1. Oracle KVM Guest
2. Oracle Enterprise Manager Agent (OMA)
3. ASM instance
4. RDBMS instance
5. Automatic Diagnostic Repository Command Interpreter (ADRCI)
6. CELLCLI
7. Cell Server(CELLSRV)
8. diskmon
9. Restart Server (RS)
10. Management Server (MS)
What is the correct location where these software components can run in the standard Exadata Database Machine deployment?
- A. 1, 2, 3, 4, 5, 8, 9 and 10 run on the database servers; 5, 6,7, 9 and 10 run on the Exadata storage servers.
- B. 3, 4, 8, and 10 run on the database servers; 1, 2, 5, 6, 7 and 9 run on the Exadata storage servers.
- C. 1, 2, 3, 4, 8 and 9 run on the database servers; 5, 6, 7, 9 and 10 run on the Exadata storage servers.
- D. 1, 2, 3, 4, 9 and 10 run on the database servers; 5, 6, 7, 8, 9, and 10 run on the Exadata storage servers.
- E. 2, 3, 4, 8, and 10 run on the database servers; 1, 5, 6, 7and 9 run on the Exadata storage servers.
Answer: A
NEW QUESTION 31
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?
- A. 44, 6, 9
- B. 7,6,9,11
- C. 10, 8, 2, 5
- D. 10, 8, 9, 11
- E. 0
Answer: D
NEW QUESTION 32
Which two statements are true about applying updates on Exadata systems?
- A. When running a "yum update" for a new Exadata release, all other repositories should be disabled.
- B. Updating kernel and RDMA packages on storage cells should be prevented by excluding them with the yum -exclude option.
- C. For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.
- D. Failed database server updates are rolled back to a working state on a previous release automatically.
- E. Failed storage server updates are automatically rolled back to a previous release.
- F. To speed up applying storage server updates in a rolling manner, updating two storage servers simultaneously is recommended.
Answer: C,D
NEW 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?
- A. A conditioned space is required to remove the packaging material to reduce particles before entering the data center.
- B. The entire access route to the installation site should be free of raised-pattern flooring that can cause vibration.
- C. Oracle Exadata Rack may only be installed on raised floor environments.
- D. All four leveling and stabilizing feet should be raised and out of the way prior to moving the rack.
- E. 914mm of space required above the rack height is required for maintenance access.
- F. The incline of any access route ramp must be less than or equal to 6 degrees.
Answer: A
NEW QUESTION 34
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