1Z0-053 | 10 Tips For Regenerate 1Z0-053 exam question
Q271. Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR?
A. All objects in the database
B. Tables owned by SYS and SYSTEM
C. Data dictionary tables
D. NCHAR columns
E. CHAR columns
Answer: E
Q272. View the Exhibit to examine the metrics with a threshold.
Which statement is true regarding the Number of Transactions (per second) metric?
A. Oracle uses statistical relevance to determine when an adaptive threshold has been breached for the metric.
B. The statistics for the metric values observed over the baseline time period are not examined to determine threshold values.
C. Oracle determines when an adaptive threshold has been breached based on the maximum value captured by the baseline.
D. The total concurrent number of threshold violations, which must occur before an alert is raised for the metric, has been set to zero.
Answer: A
Q273. In Oracle 11g, which recommendations does the SQL Access Advisor generate? (Choose all that apply.)
A. partitioning recommendations
B. statistics collection recommendations
C. index creation recommendations
D. materialized view recommendations
E. materialized view log recommendations
Answer: ACDE
Q274. Identify the three predefined server-generated alerts. (Choose three.)
A. Drop User
B. Tablespace Space Usage
C. Resumable Session Suspended
D. Recovery Area Low On Free Space
E. SYSTEM Tablespace Size Increment
Answer: BCD
Q275. You need to configure fine-grained access control to external network resources from within your database. You create an access control list (ACL) using the DBMS_NETWORK_ACL_ADMIN package.
Which statement is true regarding the ACL created?
A. It is a list of remote database links stored in the XML file that are available to the users of the database.
B. It is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts.
C. It is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts.
D. It is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL/SQL network utility packages such as UTL_TCP.
Answer: B
Q276. Evaluate the following command:
SQL>ALTER SYSTEM SET db_securefile = 'IGNORE'
What is the impact of this setting on the usage of SecureFiles?
A. It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB.
B. It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB.
C. It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB.
D. It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile.
Answer: A
Q277. When setting up the Flashback Data Archive, which of these key parameters are required?
(Choose all that apply.)
A. Tablespace name
B. Storage quota
C. Retention
D. Table name
E. Create a default archive
Answer: AC
Q278. Evaluate the following code:
SQL>VARIABLE task_name VARCHAR2(255);
SQL>VARIABLE sql_stmt VARCHAR2(4000);
SQL>BEGIN
:sql_stmt := 'SELECT COUNT(*) FROM customers
WHERE cust_state_province =''CA'''
:task_name := 'MY_QUICKTUNE_TASK'
DBMS_ADVISOR.QUICK_TUNE(DBMS_ADVISOR.SQLACCESS_ADVISOR,
:task_name, :sql_stmt);
END;
What is the outcome of this block of code?
A. It creates a task and workload, and executes the task.
B. It creates a task and workload but does not execute the task.
C. It produces an error because a template has not been created.
D. It produces an error because the SQL Tuning Set has not been created.
Answer: A
Q279. You enable block change tracking. You issue the following command:
BACKUP INCREMENTAL LEVEL 0 DATABASE;
The next day, you issue the following command:
BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;
Which statement about the use of the change tracking file is true?
A. RMAN reads the block change tracking file only when it performs the incremental level 0 backup.
B. RMAN reads the block change tracking file when it performs both incremental backups.
C. RMAN reads the block change tracking file only when it performs the incremental level 1 backup.
D. RMAN does not read the block change tracking file when it performs either incremental backup.
Answer: C
Q280. Compressed backups work with which of the following commands?
A. copy as backup
B. backup as copy
C. backup
D. copy
Answer: C