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Oracle Database Administration I Sample Questions (Q23-Q28):

NEW QUESTION # 23
In the spfile of a single instance database, LOCAL_LISTENER is set to LISTENER_1.
The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains:

Which statement is true?

A. The LREG process registers services dynamically with the LISTENER_1 listener
B. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database instances
C. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration
D. The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration
E. Dynamic service registration cannot be used for this database instance

Answer: A

Explanation:
The listener forwards client requests to supported services. These services are dynamically registered with the listener. This dynamic registration feature is called service registration. The registration is performed by the Listener Registration (LREG) process. Dynamic service registration does not require any manual configuration in the listener.ora file.
Reference:
https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292
https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292

NEW QUESTION # 24
Examine the description of the CUSTOMERS table:

For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?

A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND cust_credit_limit IS NOT NULL;
B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND due_amount != NULL;
C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND due_amount IS NOT NULL;
D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level <> NULLAND due_amount <> NULL;
E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND cust_credit_level !=NULL;

Answer: A

NEW QUESTION # 25
You execute this command:

Sufficient storage is available in filesystem /u01.
Which two statements are true about the BIG_TBS tablespace? (Choose two.)

A. It will be a dictionary-managed tablespace by default
B. AUTOEXTEND is possible for the datafile
C. Additional data files may not be added
D. It will always have a 32K blocksize
E. It must be bigger than the largest SMALLFILE tablespace

Answer: B,E

NEW QUESTION # 26
Which three statements are true about GLOBAL TEMPORARY TABLES? (Choose three.)

A. Any GLOBAL TEMPORARY TABLE rows existing at session termination will be deleted.
B. GLOBAL TEMPORARY TABLE space allocation occurs at session start.
C. A TRUNCATE command issued in a session causes all rows in a GLOBAL TEMPORARY TABLE for the issuing session to be deleted.
D. A GLOBAL TEMPORARY TABLE'S definition is available to multiple sessions.
E. A DELETE command on a GLOBAL TEMPORARY TABLE cannot be rolled back.
F. GLOBAL TEMPORARY TABLE rows inserted by a session are available to any other session whose user has been granted select on the table.

Answer: A,C,D

NEW QUESTION # 27
Examine these commands:

Which two statements are true about the sqlldr execution? (Choose two.)

A. It generates a sql script that it uses to load data from EMP.DAT to EMP
B. It generates a log that contains control file entries, which can be used with normal SQL*Loader operations
C. It overwrites data in EMP with data in EMP.DAT
D. It appends data from EMP.DAT to EMP
E. It uses the database buffer cache to load data

Answer: B,D

NEW QUESTION # 28
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