Download Oracle Database 12c-Installation and Administration.PracticeTest.1z0-062.2019-04-15.1e.217q.vcex

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Exam Oracle Database 12c: Installation and Administration
Number 1z0-062
File Name Oracle Database 12c-Installation and Administration.PracticeTest.1z0-062.2019-04-15.1e.217q.vcex
Size 1.72 Mb
Posted April 15, 2019
Downloads 43

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Demo Questions

Question 1
As a user of the ORCL database, you establish a database link to the remote HQ database such that all users in the ORCL database may access tables only from the SCOTT schema in the HQ database. SCOTT’s password is TIGER. The service mane “HQ” is used to connect to the remote HQ database. 
Which command would you execute to create the database link?

  • A: CREATE DATABASE LINK HQ USING 'HQ';
  • B: CREATE DATABASE LINK HQ CONNECT TO CURRENT_USER USING ‘HQ’;
  • C: CREATE PUBLIC DATABASE LINK HQ CONNECT TO scott IDENTIFIED BY tiger USING 'HQ';
  • D: CREATE DATABASE LINK HQ CONNECT TO scott IDENTIFIED BY tiger USING 'HQ';



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
Which two tasks can be performed on an external table? (Choose two.)

  • A: partitioning the table
  • B: creating an invisible index
  • C: updating the table by using an update statement
  • D: creating a public synonym
  • E: creating a view



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
The HR user receives the following error while inserting data into the sales table:

  

On investigation, you find that the users tablespace uses Automatic Segment Space Management (ASSM). It is the default tablespace for the HR user with an unlimited quota on it. 
Which two methods would you use to resolve this error? (Choose two.)

  • A: Altering the data file associated with the USERS tablespace to extend automatically
  • B: Adding a data file to the USERS tablespace
  • C: Changing segment space management for the USERS tablespace to manual
  • D: Creating a new tablespace with autoextend enabled and changing the default tablespace of the HR user to the new tablespace
  • E: Enabling resumable space allocation by setting the RESUMABLE_TIMEOUT parameter to a nonzero value



Question 10
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









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