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databases Online Quiz - 176

Description: databases Online Quiz - 176
Number of Questions: 20
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Tags: databases
Attempted 0/20 Correct 0 Score 0
  1. Adding a new user to database.

  2. Adding a new tablespace to database.

  3. Dropping a table from the database.

  4. Dropping a user from the database.

  5. Dropping a datafile from a tablespace.


Correct Option: B,E
  1. Flashback

  2. Data guard

  3. ASM

  4. Tivoli data protection

  5. Flash recovery.


Correct Option: A,B,C,E
  1. It specifies the directory containing the oracle managed files.

  2. It specifies the directory for database files, if not specified explicitly.

  3. It specifies the directory containing the oracle software

  4. It specifies the directory of Optimal Flexible Architecture.


Correct Option: C
  1. Online redo log files can be backed up.

  2. RMAN backup can be taken only if the database is configured in ARCHIEVELOG mode.

  3. Only used data blocks can be backed up as backup sets.

  4. Archived redo log files are backed up.

  5. Only consistent database backed up can be performed.


Correct Option: C,D
  1. Create the new text file as ALERT.log

  2. You have to recover the alert log file from the valid backup.

  3. No action required. The file will be created automatically by the instance.

  4. Change the value for the BACKGROUND_DUMP_DEST parameter.


Correct Option: C
  1. None

  2. Up to the current free space in the tablespace

  3. Unlimited space, including autoextends

  4. Up to the default quota established at tablespace creation time


Correct Option: A
  1. A role can contain both system and object privileges.

  2. A role cannot be assigned external authentication.

  3. A role can be granted to itself.

  4. Roles are owned by the SYS user.

  5. Roles can be granted to other roles


Correct Option: A,E
  1. alter session set idle_timeout=30;

  2. alter session set idle_timeout=1800;

  3. alter profile limit idle_time 30;

  4. alter profile set idle_timout 30;


Correct Option: C

Which three information are to be mandatorily provided while creating a new listener using Enterprise Manager Database Control?

  1. The database services to be registered with the listener

  2. The log file and trace file destination for the listener.

  3. The protocol used by the listener

  4. The server name where the listener runs.

  5. The port used by the listener.


Correct Option: C,D,E

Which of the following prevents a user from reusing a password when they change their password?

  1. Setting the initialization parameter NO_PASSWORD_REUSE to TRUE

  2. Altering that user’s profile to UNLIMITED for PASSWORD_REUSE_TIME and 1 for PASSWORD_REUSE_MAX

  3. Altering that user’s profile to UNLIMITED for both PASSWORD_REUSE_TIME and PASSWORD_REUSE_MAX

  4. Using a password verify function to record the new password and compare the new passwords to those recorded previously


Correct Option: B

How can you prevent someone from using an all-numeric password?

  1. Set the initialization parameter PASSWORD_COMPLEXITY to ALPHANUM.

  2. Alter that user’s profile setting PASSWORD_COMPLEXITY to ALPHNANUM.

  3. Alter the user’s profile to use a password verify function that performs REGEX comparisons to validate the password.

  4. There is no mechanism that lets you prevent an all-numeric password


Correct Option: C
  1. Extents would be managed by freelists.

  2. Free space would be managed by data dictionary.

  3. The segment would be managed by bitmaps.

  4. The segment would be managed by freelists.


Correct Option: C

Which of the following is not an object privilege on a table?

  1. SELECT

  2. DEBUG

  3. REFERENCES

  4. READ


Correct Option: D
  1. Object level.

  2. Row level.

  3. Block level.

  4. Schema level.

  5. Database level.


Correct Option: A,B
  1. Loss of the initialization parameter file.

  2. One of the redo log members.

  3. Any data file belonging to the default permanent tablespace

  4. Any archive log file.

  5. Any control file.


Correct Option: E

Which statements are true regarding the logical structure of database? (Choose three)

  1. It is possible to have tablespaces of different block sizes in a database.

  2. A data block is the smallest unit of I/O for data files.

  3. Multiple tablespaces can share single data file.

  4. Each data block in the database always corresponds to one OS block.

  5. Each segment contains one or more extents.


Correct Option: A,B,E

Which three statements are true about the stages of database startup?

  1. Data files and redo log files can be renamed at the MOUNT stage.

  2. Control files are required to bring the database to the NOMOUNT stage.

  3. Data files and online redo log files are checked for consistency while opening the database.

  4. Data files and redo log files are made available to users at the OPEN stage.

  5. Control files are read at the OPEN stage for the location of data files.


Correct Option: A,B,D
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