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Oracle 1z0-027 Exam Practice Questions (P. 2)

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Question #6
To guarantee proper cooling, you plan to place perforated floor tiles near your Database Machine.
Where, in relation to the cabinet, should they be placed?
  1. A
    On the left side, because the air flow is from left to right
  2. B
    At the back, because the air flow is from back to front
  3. C
    On the right side, because the air flow is from right to left.
  4. D
    At the front, because the air flow is from front to back
  5. E
    Underneath the cabinet, because the air flow is from bottom to top

Correct Answer:
D
Airflow must be front-to-back.
Reference: Oracle White Paper, ORACLE Exadata Database Machine X3-8

Question #7
Identify two valid reasons for creating multiple griddisks on a Single celldisk.
  1. A
    To segregate storage into multiple pools with different performance characteristics
  2. B
    To facilitate normal or high redundancy ASM diskgroups
  3. C
    To enable disk mirroring for the system area
  4. D
    To segregate storage into multiple pools that can be assigned to different databases
  5. E
    To segregate storage into multiple pools that can be assigned to different resource consumer groups in the same database.

Correct Answer:
AD

Question #8
You plan to migrate an Oracle database that supports an online transaction processing (OLTP) workload to your Database Machine.
Following are details for the source database:

Database version: 10.2.0 -
Byte order: Big Endian HP-UX (64-bit)

Database size: 24 TB -
Storage: ASM with 1 MB allocation unit size
Which two are supported migration methods?
  1. A
    Physical migration using ASM online Migration
  2. B
    Physical migration using Transportable Database
  3. C
    Logical migration using Oracle Streams
  4. D
    Local migration using Oracle Streams
  5. E
    Logical migration using logical standby

Correct Answer:
CE
There are several techniques for migrating data to a Database Machine. Migration can be done using Oracle Recovery Manager (RMAN) to backup from traditional storage and restore the data onto Exadata. Oracle Data Guard can also be used to facilitate a migration. This is done by first creating a standby database based on Exadata storage. The standby can be using Exadata storage and the production database can be on traditional storage. By executing a fast switchover, taking just seconds, you can transform the standby database into the production database. This provides a built-in safety net as you can undo the migration very gracefully if unforeseen issues arise. Transportable Tablespaces (B) and Data Pump may also be used to migrate to Exadata. Any technique used to move data between Oracle Databases can be used with Exadata.

Question #9
You have configured a multi-rack Database Machine with two X3-8 full racks all in a single cluster and storage grid.
Which two are true regarding the servers on which Enterprise manager agents must be deployed in order to monitor all components of the multi-rack Database
Machine?
  1. A
    On only one database server in the first rack
  2. B
    On all storage servers in all racks
  3. C
    On at least two storage servers in the first rack
  4. D
    On all database servers in the first rack
  5. E
    On only one database server in second rack
  6. F
    On all database servers in second rack
  7. G
    On at least two storage servers in the second rack

Correct Answer:
DF
Note:
* The Enterprise Manager agent must be deployed to all compute nodes of the Database Machine.
* Oracle's documentation uses the term compute node when referring to the database server tier of the platform.
* The Exadata Database Machine runs Oracle Database 11g Real Application Cluster. The cluster and the database run on the servers known as database nodes or compute nodes (or simply "nodes").
* Cells and compute nodes are not shared between partitions.
* Compute nodes in same partition share the same Cluster.

Question #10
Which three storage components are available after the standard initial Database machine deployment?
  1. A
    The DATA_<DBM_Name> ASM diskgroup
  2. B
    The RECO_<DBM_Name> ASM diskgroup
  3. C
    Mirrored system partitions on hard disk 0 and hard disk 1
  4. D
    The DBFS_DG diskgroup with external redundancy
  5. E
    Exadata Smart Flash Cache using all of the flashdisk space

Correct Answer:
ABC

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