Download Oracle Database 12c-Installation and Administration.test-inside.1z0-062.2019-06-18.1e.220q.vcex

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Exam Oracle Database 12c: Installation and Administration
Number 1z0-062
File Name Oracle Database 12c-Installation and Administration.test-inside.1z0-062.2019-06-18.1e.220q.vcex
Size 1.68 Mb
Posted June 18, 2019
Downloads 83

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Demo Questions

Question 1
A user establishes a connection to a database instance by using an Oracle Net connection. You want to ensure the following:
1. The user account must be locked after five unsuccessful login attempts. 
2. Data read per session must be limited for the user. 
3. The user cannot have more than three simultaneous sessions. 
4. The user must have a maximum of 10 minutes session idle time before being logged off automatically. 
How would you accomplish this?

  • A: by granting a secure application role to the user
  • B: by implementing Database Resource Manager
  • C: by using Oracle Label Security options
  • D: by assigning a profile to the user



Question 2
What happens if a maintenance window closes before a job that collects optimizer statistics completes?

  • A: The job is terminated and the gathered statistics are not saved.
  • B: The job is terminated but the gathered statistics are not published.
  • C: The job continues to run until all statistics are gathered.
  • D: The job is terminated and statistics for the remaining objects are collected the next time the maintenance window opens.



Question 3
You plan to create a database by using the Database Configuration Assistant (DBCA), with the following specifications:
– Applications will connect to the database via a middle tier. 
– The number of concurrent user connections will be high. 
– The database will have mixed workload, with the execution of complex BI queries scheduled at night. 
Which DBCA option must you choose to create the database?

  • A: a General Purpose database template with default memory allocation
  • B: a Data Warehouse database template, with the dedicated server mode option and AMM enabled
  • C: a General Purpose database template, with the shared server mode option and Automatic Memory Management (AMM) enabled
  • D: a default database configuration



Question 4
Which two statements are true about the logical storage structure of an Oracle database? (Choose two.)

  • A: An extent contains data blocks that are always physically contiguous on disk.
  • B: An extent can span multiple segments.
  • C: Each data block always corresponds to one operating system block.
  • D: It is possible to have tablespaces of different block sizes.
  • E: A data block is the smallest unit of I/O in data files.



Question 5
Which two statements correctly describe the relationship between data files and logical database structures? (Choose two.)

  • A: A segment cannot span data files.
  • B: A data file can belong to only one tablespace.
  • C: An extent cannot span data files.
  • D: The size of an Oracle data block in a data file should be the same as the size of an OS block.



Question 6
Which statement is true about the Log Writer process?

  • A: It writes when it receives a signal from the checkpoint process (CKPT).
  • B: It writes concurrently to all members of multiplexed redo log groups.
  • C: It writes after the Database Writer process writes dirty buffers to disk.
  • D: It writes when a user commits a transaction.



Question 7
The ORCL database is configured to support shared server mode. You want to ensure that a user connecting remotely to the database instance has a one-to-one ratio between client and server processes. 
Which connection method guarantees that this requirement is met?

  • A: connecting by using an external naming method
  • B: connecting by using the easy connect method
  • C: creating a service in the database by using the dbms_service.create_service procedure and using this service for creating a local naming service
  • D: connecting by using the local naming method with the server = dedicated parameter set in the tnsnames.ora file for the net service
  • E: connecting by using a directory naming method



Question 8
Which three statements are true about a job chain? (Choose three.)

  • A: It can contain a nested chain of jobs.
  • B: It can be used to implement dependency-based scheduling.
  • C: It cannot invoke the same program or nested chain in multiple steps in the chain.
  • D: It cannot have more than one dependency.
  • E: It can be executed using event-based or time-based schedules.



Question 9
Which three factors influence the optimizer's choice of an execution plan? (Choose three.)

  • A: the optimizer_mode initialization parameter
  • B: operating system (OS) statistics
  • C: cardinality estimates
  • D: object statistics in the data dictionary
  • E: fixed baselines



Question 10
Examine the resources consumed by a database instance whose current Resource Manager plan is displayed. 

  

Which two statements are true? (Choose two.)

  • A: An attempt to start a new session by a user belonging to DSS_QUERIES fails with an error.
  • B: An attempt to start a new session by a user belonging to OTHER_GROUPS fails with an error.
  • C: The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to resource management.
  • D: The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to I/O waits and latch or enqueue contention.
  • E: A user belonging to the DSS__QUERIES resource consumer group can create a new session but the session will be queued.









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