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Oracle 1Z0-902 VCE Dumps & Testking IT echter Test von 1Z0-902

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Die Oracle 1Z0-902-Prüfung, auch bekannt als Oracle Exadata Database Machine X8M Implementation Essentials Exam, ist für IT-Profis konzipiert, die ihr Wissen und ihre Fähigkeiten bei der Implementierung und Verwaltung von Oracle Exadata Database Machine X8M-Systemen demonstrieren möchten. Diese Prüfung ist Teil der Oracle Certified Specialist (OCS) Zertifizierung und wird für Fachleute empfohlen, die Erfahrung mit Oracle Exadata Database Machine X8M haben und ihre Expertise in diesem Bereich validieren möchten.

>> 1Z0-902 Zertifizierung <<

1Z0-902 Deutsche Prüfungsfragen & 1Z0-902 Testing Engine

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Oracle Exadata Database Machine X8M Implementation Essentials 1Z0-902 Prüfungsfragen mit Lösungen (Q60-Q65):

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

A. 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
B. 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
C. 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
D. 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

Antwort: A,B

Begründung:
Statement D is true as the Exadata X9M-2 Database Server has two 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fiber cable for backup network, and two 10Gb ports on eth3 and eth4 using RJ45 cat6 cable for client network, as stated in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 24).
Statement B is also true as the Exadata X9M-2 Database Server has two 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fibre cable for client network [1][2], and two 10Gb ports on eth9 and eth10 using RJ45 cat6 cable for backup network, as stated in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 24).

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

A. Database Quarantine
B. Disk Region Quarantine
C. SQL Plan Quarantine
D. Cell Offload Quarantine
E. Manually created Quarantine

Antwort: C,D

Begründung:
A and E are the two correct quarantine types that can disable Smart Scan for multiple databases that offload SQL statements to a cell on an Exadata Database Machine. A is correct because SQL Plan Quarantine will disable Smart Scan for all queries related to the SQL plan that was placed in the SQL Plan Quarantine [1]. E is correct because the Cell Offload Quarantine will disable Smart Scan for all queries offloaded to Oracle Database Exadata Storage Server Software [2]. The other statements (B, C, and D) are incorrect.
[1] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book , Chapter 13 [1][2]: Oracle Database Exadata Storage Server Software [2] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book , Chapter 15 [1][2]: Oracle Database Exadata Storage Server Configuration

62. Frage
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?

A. the Power Distribution Units (PDUs)
B. the storage server ILOM
C. ASM instances
D. Hybrid Columnar Compression (HCC) ratios on Extended (XT) storage servers
E. Oracle clusterware on the database server
F. the RDMA over Converged Ethernet (RoCE) switches

Antwort: C,D,E

Begründung:
Exadata-specific Enterprise Manager Plug-Ins are used to monitor different components of the Exadata Database Machine.
1. ASM instances: The Automatic Storage Management (ASM) instances can be monitored directly through the use of Exadata-specific Enterprise Manager Plug-Ins. This allows you to monitor the storage space, disk usage, and performance of the ASM instances.
2. Hybrid Columnar Compression (HCC) ratios on Extended (XT) storage servers: The HCC ratios on Extended (XT) storage servers can be monitored directly through the use of Exadata-specific Enterprise Manager Plug-Ins. This allows you to monitor the compression ratios and performance of the storage servers.
3. Oracle clusterware on the database server: The Oracle clusterware on the database server can be monitored directly through the use of Exadata-specific Enterprise Manager Plug-Ins. This allows you to monitor the health and performance of the clusterware.

63. Frage
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?

A. The sparse_<DBM_NAME> diskgroup is created automatically.
B. There is free space available on flashdisks inside the Exadata storage servers for possible use for storage indexes.
C. 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.
D. There is free space available on flashdisks inside the Exadata storage servers to configure Exadata Smart Flash Logs.
E. There is free space available on the hard disks inside the database servers for possible extension of the /uoi file system.

Antwort: B,D

Begründung:
According to the Oracle Exadata Database Machine Technical Architecture1, the initial storage configuration after the standard (non-virtualized) deployment of a new Exadata Database Machine with High Capacity storage servers includes two ASM disk groups: DATA_<DBM_Name> and RECO_<DBM_NAME>. These disk groups are built on hard disks and flash disks inside the Exadata Storage Servers1.
The correct statements about this configuration are:
Option D: There is free space available on flashdisks inside the Exadata storage servers for possible use for storage indexes. Storage indexes are a feature of Exadata Storage Software that can improve query performance by avoiding unnecessary I/O operations. Storage indexes use a small amount of flash memory to store metadata about data blocks stored on disk1.
Option E: There is free space available on flashdisks inside the Exadata storage servers to configure Exadata Smart Flash Logs. Exadata Smart Flash Logs are another feature of Exadata Storage Software that can improve database performance by using flash memory as an extension of the database redo log buffer. This can reduce latency and increase throughput for redo log writes1.

64. Frage
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. 7,6,9,11
B. 10, 8, 9, 11
C. 0
D. 10, 8, 2, 5
E. 44, 6, 9

Antwort: B

65. Frage
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