[Free] 2018(Mar) EnsurePass Examcollection Oracle 1z0-514 Dumps with VCE and PDF 21-30

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Oracle Database 11g Essentials

Question No: 21

Which two statements are true regarding indexes? (Choose two.)

  1. column can have multiple indexes created on it.

  2. An index can be created on one or more columns.

  3. Index must be created in the same tablespace as the table.

  4. Indexes are implicitly created by the PRIMARY KEY and UNIQUE constrains.

Answer: B,D

Question No: 22

View the Exhibit.

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Which actions would be performed and in what sequence by clicking the Startup button?

  1. Control file is read.

  2. Memory is allocated.

  3. Background processes are started.

  4. Initialization parameter file is read.

  5. Redo log files and data files are opened.

A. 2, 3, 1

B. 4, 1, 5

C. 1, 5, 4, 2

D. 4, 2, 3, 1, 5

E. 3, 2, 4, 1, 5

Answer: D

Question No: 23

View the exhibit

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and examine the structure of the PRODUCTS table. The PRODUCTS table contains 20 rows.

In the data that has been entered, the PROD_ID column contains only single digit values, PROD_NAMKhas a maximum of 5 characters, and RATE has 4 digit values for all rows.

Which two statements are true regarding the modifications that can be performed to the structure of the PRODUCTS table? (Choose two.)

  1. PROD_NAME size can be reduced from 10 to 5 characters.

  2. PROD_IP can be changed from CHAR to NUMBER data type.

  3. Now columns can be added only if they have NOT NULL constraint.

  4. PROD_RATE size can be changed from NUMBER (4) to NUMBER (6, 2).

  5. None of the existing columns can be dropped because they contain data.

Answer: A,D

Question No: 24

View the exhibit.

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You are creating a database by using Database Configuration Assistant (DHCIA). You have chosen the File System option as the storage mechanism. What would be the result of choosing this option?

  1. Disk mirroring and striping would be done automatically.

  2. The database files would be managed by the operating system#39;s file system.

  3. DBCA would not save the database files by using Optimal File Architecture (OFA).

  4. The data files are automatically spread across all available storage devices to optimize performance and resource utilization.

Answer: B

Question No: 25

Whit h two of the following tasks must you perform in order to benefit from the SQL. Query Result Cache?

  1. Use a SQL_QUERY_RESULT_CACHEhint in your SQL statement.

  2. Set RESULT_CACHE_MODE to FORCE

  3. Make sure the RESULT_CACHE_MAX_SIZE is greater than 0.

  4. Have SQL statements that are executed repeatedly.

  5. Use temporary tables.

  6. Not use bind variables in your query.

Answer: A,C

Question No: 26

Whi.li statement is true regarding the management of tablespaces?

  1. AUTOEXTEND can be enabled only for new data files.

  2. Dictionary-managed tablespaces can be converted to locally managed tablespaces.

  3. Space usage alert thresholds can be modified only if the tablespace contains no data.

  4. Locally managed temporary tablespaces can be converted to permanent tablespaces.

Answer: B

Question No: 27

View the exhibit.

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You plan to load the customer information that has been brought from a non Oracle database in the CUSTOMERS table in your database using the “Enterprise Manager – Load Data From User File” option. Which files should you create before using this option?

  1. only data file

  2. data file and log file

  3. data file and dump file

  4. data file and control file

Answer: D

Question No: 28

Which mode of database shutdown requires an instance recovery at the time of the database startup?

  1. ABORT

  2. NORMAL

  3. IMMEDIATE

  4. TRANSACTIONAL

Answer: A

Question No: 29

Which two statements are true regarding views? (Choose two)

  1. Views contain no data

  2. Views provide an additional level of security by restricting access to a predetermined set of rows and columns of a table

  3. Views can be created only on tables in the same schema.

  4. Views on one or more tables can be used to update the columns specified in the views.

Answer: A,B

Question No: 30

Which two statements correctly differentiate undo and redo data? (Choose two.)

  1. Undo reverses a change, whereas redo re-creates a change.

  2. Redo reverses a change, whereas undo re-creates a change.

  3. Undo protects against inconsistent reads, whereas redo protects against data loss.

  4. Redo protects against inconsistent reads, whereas undo protects against data loss.

Answer: A,C

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