Download Oracle Database 12c: Installation and Administration.1z0-062.PassIt4Sure.2017-09-14.183q.vcex

Vendor: Oracle
Exam Code: 1z0-062
Exam Name: Oracle Database 12c: Installation and Administration
Date: Sep 14, 2017
File Size: 3 MB
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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?
  1. by granting a secure application role to the user
  2. by implementing Database Resource Manager
  3. by using Oracle Label Security options
  4. by assigning a profile to the user
Correct answer: D
Explanation:
Answer is correct.
Answer is correct.
Question 2
Which three statements are true about a job chain? 
  1. It can contain a nested chain of jobs.
  2. It can be used to implement dependency-based scheduling.
  3. It cannot invoke the same program or nested chain in multiple steps in the chain.
  4. It cannot have more than one dependency. 
  5. It can be executed using event-based or time-based schedules.
Correct answer: ABE
Explanation:
Reference:http://docs.oracle.com/cd/B28359_01/server.111/b28310/scheduse009.htm#ADMIN12459
Reference:
http://docs.oracle.com/cd/B28359_01/server.111/b28310/scheduse009.htm#ADMIN12459
Question 3
The hr user receiver, the following error while inserting data into the sales table:
ERROR at line 1:
ORA-01653; unable to extend table HR.SALES by 128 in tablespace USERS 
On investigation, you find that the users tablespace uses Automnrif 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?
  1. Altering the data life associated with the USERS tablespace to ex automatically
  2. Adding a data life to the USERS tablespace
  3. Changing segment space management for the USERS tablespace to manual
  4. Creating a new tablespace with autoextend enabled and changing the default tablespace of the HR user to the new tablespace
  5. Enabling resumable space allocation by setting the RESUMABLE_TIMEOUT parameter to a nonzero value
Correct answer: AD
Question 4
Which three factors influence the optimizer's choice of an execution plan?
  1. the optimizer_mode initialization parameter
  2. operating system (OS) statistics 
  3. cardinality estimates
  4. object statistics in the data dictionary
  5. fixed baselines
Correct answer: ABD
Explanation:
Reference: http://docs.oracle.com/cd/B19306_01/server.102/b14211/optimops.htm
Reference: http://docs.oracle.com/cd/B19306_01/server.102/b14211/optimops.htm
Question 5
Examine the resources consumed by a database instance whose current Resource Manager plan is displayed. 
SQL> SELECT name, active_sessions, queue_length, 
Consumed_cpu_time, cpu_waits, cpu_wait_time 
FROM v$rsrc_consumer_group; 
  
Which two statements are true?
  1. An attempt to start a new session by a user belonging to DSS_QUERIES fails with an error. 
  2. An attempt to start a new session by a user belonging to OTHE_GROUPS fails with an error.
  3. The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to resource management.
  4. 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.
  5. A user belonging to the DSS__QUERIES resource consumer group can create a new session but the session will be queued.
Correct answer: CE
Question 6
Which action takes place when a file checkpoint occurs?
  1. The checkpoint position is advanced in the checkpoint queue.
  2. All buffers for a checkpointed file that were modified before a specific SCN are written to disk by DBWn and the SCN is stored in the control file.
  3. The Database Writer process (DBWn) writes all dirty buffers in the buffer cache to data files.
  4. The Log Writer process (LGWR) writes all redo entries in the log buffer to online redo log files.
Correct answer: C
Explanation:
well answered.
well answered.
Question 7
Examine the structure of the sales table, which is stored in a locally managed tablespace with Automatic Segment Space Management (ASSM) enabled. 
  
You want to perform online segment shrink to reclaim fragmented free space below the high water mark. 
What should you ensure before the start of the operation?
  1. Row movement is enabled.
  2. Referential integrity constraints for the table are disabled.
  3. No queries are running on this table.
  4. Extra disk space equivalent to the size of the segment is available in the tablespace.
  5. No pending transaction exists on the table.
Correct answer: D
Question 8
Which task would you recommend before using the Database Upgrade Assistant (DBUA) to upgrade a single-instance Oracle 11g R2 database to Oracle Database 12c?
  1. shutting down the database instance that is being upgraded
  2. executing the catctl.pl script to run the upgrade processes in parallel
  3. running the Pre-Upgrade Information Tool
  4. copying the listener.ora file to the new ORACLE_HOME
Correct answer: C
Explanation:
Reference: http://docs.oracle.com/cd/E11882_01/server.112/e23633/upgrade.htm#UPGRD12395
Reference: http://docs.oracle.com/cd/E11882_01/server.112/e23633/upgrade.htm#UPGRD12395
Question 9
Your database is open and the listener LISTNENER is up. You issue the command:
LSNRCTL> RELOAD 
What is the effect of reload on sessions that were originally established by listener?
  1. Only sessions based on static listener registrations are disconnected.
  2. Existing connections are not disconnected; however, they cannot perform any operations until the listener completes the re-registration of the database instance and service handlers.
  3. The sessions are not affected and continue to function normally.
  4. All the sessions are terminated and active transactions are rolled back.
Correct answer: B
Question 10
Which statement is true regarding the startup of a database instance? 
  1. The instance does not start up normally and requires manual media recovery after a shutdown using the abort option.
  2. Uncommitted transactions are rolled back during the startup of the database instance after a shutdown using the immediate option.
  3. There is no difference in the underlying mechanics of the startup whether the database is shut down by using the immediate option or the abort option.
  4. Media recovery is required when the database is shut down by using either the immediate option or the abort option.
  5. Instance recovery is not required if the database instance was shut down by using SHUTDOWN IMMEDIATE.
Correct answer: E
Explanation:
Reference: http://docs.oracle.com/cd/A87860_01/doc/server.817/a76956/start.htm
Reference: http://docs.oracle.com/cd/A87860_01/doc/server.817/a76956/start.htm
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