Oracle 1z1-485 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 1z1-485
Exam Name/Title: Oracle Exadata Database Machine 2014 Implementation Essentials
Certification Provider: Oracle
Corresponding Certification: Other Oracle Certification

Exam Questions: 71
Updated On: Jul 09, 2026

Question #9

Which statement is true about Exadata Storage Servers?

A. Redundancy for user data stored in a database that is running on Exadata is achieved with RAID5.

B. Communication between a database and an Exadata storage flows over low latency 10 Gigabit Ethernet.

C. Exadata uses network affinity to determine which storage server data is written.

D. Exadata requires a running database instance on all storage servers and database servers.

E. The Exadata Storage Server automatically deletes old diagnostic and metric files.

Discussion 0

Correct Answer: A Vote an answer

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Question #10

When an Exadata Storage Server hard disk failure alert is received, what manual action must you take to restore the system to full redundancy?

A. Replace the disk and manually copy the mirror extents to the new drive.

B. No manual action is required because Automatic Storage Management (ASM) fast mirror resync is automatic

C. Run RMAN REPAIR FAILUR

D. No manual action is required because ASM rebalancing isautomatic.

E. Replace the disk and run MegaCLI to rebuild the degenerate mirror.

Discussion 0

Correct Answer: D Vote an answer

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Question #11

You are calculating the storage capacity that your customer will require on their ZFS Backup Appliance. Identify the set of factors that will affect this calculation.

A. database size, full/incremental cycle, RPO (Recovery Point Objective), and RTO (Recovery Time Objective)

B. database size, full/incremental cycle, compression, and retention period

C. database size, compression, and backup window

D. full/incremental cycle, retention period, and ZFS Backup Appliance model

E. database size, retention period, RPO (Recovery Point Objective), and compression

Discussion 0

Correct Answer: B Vote an answer

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Question #12

Identify the correct steps required to upgrade a 1/8th rack of Exadata to a 1/4th rack.

A. Remove the doors of the 1/8th rack.
Add an additional Sun Datacenter InfiniBand Switch.
Add the new servers.
Cable the Database Servers in the rack.
Cable the Exadata Storage Servers in the rack.
Close the rack.
Configure the new hardware.

B. Activate all cores by using a software command.
Activate all hard drives and flash drives.
Create the grid disks.
Expand the Oracle ASM diskgroups.
Review the new configuration.

C. Activate all cores by using a software command.
Activate all hard drives and flash drives.

D. Remove the doors of the 1/8th rack.
Add the new servers.
Cable the Database Servers in the rack.
Cable the Exadata Storage Servers in the rack.
Close the rack.

Discussion 0

Correct Answer: B Vote an answer

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Question #13

Exadata Database Machine offers an Intelligent Platform Management Interface for the various components in the Exadata product. Which option is true?

A. IPMI can be used to remotely start and stop servers.

B. IPMI settings can be secured by backing up the Oracle Linux installation on the storage system.

C. IPMI commands can be executed by using SNMP traps.

D. IPMI can be used to remotely log in to the operating system.

Discussion 0

Correct Answer: A Vote an answer

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Question #14

Identify the three values to which the cell_flash_cache attribute can be set.

A. WRITE

B. read

C. NONE

D. KEEP

E. DEFAULT

Discussion 0

Correct Answer: C,D,E Vote an answer

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Question #15

Which is a best practice for High Availability (HA) in an Exadata environment?

A. Checksums performed on the Exadata Storage Server ensure logical consistency of block content.

B. Due to the different architecture that Exadata has with storage servers, compared to regular Storage Area Network, DB_LOST_WRITE_PROTECT need not be set.

C. Oracle Exadata Storage Server Software HARD checks operate transparently after enabling DB_BLOCK_CHECKSUM on a database.

D. When a standby database is in place, DB_BLOCK_CHECKING is not required and thus not recommended.

E. Stretched RAC is the best alternative for Exadata that combines both HA and DR into one.

Discussion 0

Correct Answer: C Vote an answer

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Question #16

After migrating from legacy disk-based configuration, which three approaches would you use to evaluate the efficiency of Exadata Flash Cache?

A. Review the IOSTAT data that is gathered from each compute node by OS Watcher.

B. Check I/O latency on large I/O to Temp in AWR.

C. Evaluate the Smart Flash Logging efficiency metrics via CellCLI.

D. Compare Optimized Physical Reads and Total Read Requests in Automatic Workload Repository (AWR).

E. Review the Flash Hit rate via cellcli metrics.

Discussion 0

Correct Answer: A,C,E Vote an answer

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