Download Oracle Database 12c Essentials.1z0-497.PracticeTest.2017-12-21.150q.vcex

Vendor: Oracle
Exam Code: 1z0-497
Exam Name: Oracle Database 12c Essentials
Date: Dec 21, 2017
File Size: 1 MB
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Demo Questions

Question 1
Which statement about CDB architecture is true?
  1. Oracle-supplied metadata resides only in the root container.
  2. A seed PDB can sometimes be opened for particular operations.
  3. Multiple PDBs with the same name can reside in the same CDB.
  4. A CDB can have an infinite number of PDBs.
  5. You can create common users in PDBs.
Correct answer: A
Explanation:
References:
References:
Question 2
As part of your Oracle Database 12c post-installation tasks, you run these commands:
Cd $ORACLE_HOME/bin 
srvctl stop database -d myDb 
chopt enable dm 
srvctl start database -d myDb 
What does this do?
  1. It enables the Oracle Data Mining option in your Oracle binary files.
  2. It creates the Fast Recovery Area disk group.
  3. It generates Client Static Library.
  4. It configures one of the Oracle user accounts.
  5. It configures Oracle Net Services.
  6. It configures Oracle Messaging Gateway.
Correct answer: A
Explanation:
References:
References:
Question 3
Exhibit below:
   
  
Which three statements are true about terminating a session?
  1. Without any error, you can terminate the active session by executing:SQL> ALTER SYSTEM KILL SESSION '7, 15';
  2. You can terminate the active session by executing:SQL> ALTER SYSTEM KILL SESSION "7, 15';But you also get the error message:ORA-00028: your session has been killed
  3. You cannot terminate the active session. You have to wait until that session becomes inactive.
  4. Without any error, you can terminate the inactive session by executing:SQL> ALTER SYSTEM KILL SESSION '12, 63';
  5. When an inactive session is killed, the status of that session remains visible in VSSESSION with status KILLED. The rowf the terminated session is removed from VSSESSION after the user attempts to use the session again.
  6. You cannot terminate the inactive session. You have to wait until that session becomes active again.
Correct answer: BDE
Explanation:
B (not A, Not C): * You terminate a current session using the SQL statement ALTER SYSTEM KILL SESSION. The following statement terminates the session whose system identifier is 7 and serial number is 15:* Terminating an Active Session If a user session is processing a transaction (ACTIVE status) when you terminate the session, the transaction is rolled back and the user immediately receives the following message:ORA-00028: your session has been killedALTER SYSTEM KILL SESSION '7,15'; E (not F): Terminating an Inactive SessionIf the session is not making a SQL call to Oracle Database (is INACTIVE) when it is terminated, the ORA-00028 message is not returned immediately. The message is not returned until the user subsequently attempts to use the terminated session. When an inactive session has been terminated, the STATUS of the session in the V$SESSION view is KILLED. The row for the terminated session is removed from V$SESSION after the user attempts to use the session again and receives the ORA-00028 message. References:
B (not A, Not C): 
* You terminate a current session using the SQL statement ALTER SYSTEM KILL SESSION. The following statement terminates the session whose system identifier is 7 and serial number is 15:
* Terminating an Active Session 
If a user session is processing a transaction (ACTIVE status) when you terminate the session, the transaction is rolled back and the user immediately receives the following message:
ORA-00028: your session has been killed
ALTER SYSTEM KILL SESSION '7,15'; 
E (not F): Terminating an Inactive Session
If the session is not making a SQL call to Oracle Database (is INACTIVE) when it is terminated, the ORA-00028 message is not returned immediately. The message is not returned until the user subsequently attempts to use the terminated session. 
When an inactive session has been terminated, the STATUS of the session in the V$SESSION view is KILLED. The row for the terminated session is removed from V$SESSION after the user attempts to use the session again and receives the ORA-00028 message. 
References:
Question 4
Which two statements are true about shared server sessions?
  1. No Program Global Area (PGA) is allocated for shared server processes.
  2. User Global Area is stored in System Global Area (SGA).
  3. Shared SQL Area is allocated from Program Global Area (PGA).
  4. Private SQL Area is allocated from Library Cache.
  5. Large Pool is used for SQL work areas.
Correct answer: BD
Explanation:
References:
References:
Question 5
Which targets can be managed by using Enterprise Manager Cloud Control?
  1. Hosts and databases
  2. Hosts, databases, and application servers
  3. Application servers and web applications
  4. Databases, Oracle Management Server (OMS), and Oracle Management Repository (OMR)
  5. Databases, application servers, and web applications
  6. Hosts, databases, application servers, web applications, OMS, and OMR
Correct answer: F
Explanation:
References:
References:
Question 6
Which two statements are true regarding SQL*Plus?
  1. It has commands for performing database administration operations.
  2. It can be used in interactive but not batch mode for SQL commands.
  3. It has to be installed separately after the Oracle Database 12c installation.
  4. Operating system commands can be executed from the SQL*Plus command prompt.
Correct answer: AD
Explanation:
References:
References:
Question 7
Which two statements about the Process Monitor (PMON) process are true?
  1. PMON performs process recovery when a client process fails.
  2. During instance startup, PMON takes care of instance recovery.
  3. PMON performs listener registration.
  4. PMON restarts background and dispatcher processes when they fail.
  5. PMON resolves failures of distributed transactions.
Correct answer: AD
Explanation:
http://docs.oracle.com/database/121/CNCPT/process.htm#CNCPT9840
http://docs.oracle.com/database/121/CNCPT/process.htm#CNCPT9840
Question 8
Which statement is true about loading data by using the conventional path of SQL*Loader?
  1. Redo is not generated while performing conventional path loads.
  2. Only PRIMARY KEY, UNIQUE KEY, and NOT NULL constraints are checked,
  3. No exclusive locks are acquired when the conventional path loads are performed.
  4. Instead of performing transactions, SQL*Loader directly writes data blocks to the data files.
  5. INSERT triggers are disabled before the conventional path load and re-enabled at the end of the load.
Correct answer: C
Explanation:
References:
References:
Question 9
Identify three key properties of a transaction in Oracle Database 12c.
  1. durability
  2. consistency
  3. concurrency
  4. isolation
  5. scalability
  6. manageability
Correct answer: ABD
Explanation:
References:
References:
Question 10
Which type of file system is NOT valid for storing data files, online redo log files, and control files for a pluggable database?
  1. Automatic Storage Management (ASM)
  2. OS file system
  3. logical volume (LVM)
  4. clustered file system
  5. RAW
Correct answer: E
Explanation:
https://docs.oracle.com/database/121/UPGRD/deprecated.htm#UPGRD60120
https://docs.oracle.com/database/121/UPGRD/deprecated.htm#UPGRD60120
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