C1000-122 MCQs
C1000-122 TestPrep C1000-122 Study Guide C1000-122 Practice Test
C1000-122 Exam Questions
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Db2 12 for z/OS DBA Fundamentals
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What is the purpose of the security labels in Db2 12 for z/OS?
To enforce row-level security for the database
To classify and protect sensitive data in the database
To control access to the database objects
To audit and monitor user activity in the database
Answer: B
Explanation: Security labels in Db2 12 for z/OS are used to classify and protect sensitive data in the database. They help enforce data access controls and ensure that only authorized users can view or modify sensitive information.
How does Db2 12 for z/OS handle data concurrency?
By using row-level locking
By using table-level locking
By implementing optimistic concurrency control
By implementing pessimistic concurrency control
Answer: A
Explanation: Db2 12 for z/OS handles data concurrency by using row-level locking. This means that only the specific rows being accessed by a transaction are locked, allowing other transactions to access different rows concurrently.
for z/OS database?
SELECT XMLQUERY
SELECT XMLTABLE
SELECT XMLGEN
SELECT XMLCAST
Answer: B
Explanation: The SELECT XMLTABLE statement is used to retrieve XML data stored in a Db2 12 for z/OS database. It allows you to query XML data and extract specific elements or attributes from the XML document.
Which Db2 12 for z/OS object is used to enforce referential integrity constraints?
Index
View
Trigger
Constraint
Answer: D
Explanation: Constraints are Db2 12 for z/OS objects used to enforce referential integrity constraints. They define rules that ensure the relationships between tables are maintained, such as ensuring the existence of related rows in a foreign key relationship.
To determine the hardware requirements for the database
To define the logical and physical structure of the database
To create backup and recovery strategies for the database
To establish security policies and access controls for the database
Answer: B
Explanation: The purpose of the database planning process in Db2 12 for z/OS is to define the logical and physical structure of the database. This includes determining the table structures, indexes, tablespaces, and other storage considerations.
What is the purpose of a database trigger in Db2 12 for z/OS?
To enforce data validation rules
To control access to the database objects
To monitor and log database activity
To optimize query execution plans
Answer: C
Explanation: Database triggers in Db2 12 for z/OS are used to monitor and log database activity. They can be defined to automatically execute certain actions, such as logging changes to specific tables or performing additional data validation checks.
What is the purpose of application design in Db2 12 for z/OS?
To optimize query performance
To define the database schema
To establish security policies for the application
To create backup and recovery strategies for the application
Answer: A
Explanation: The purpose of application design in Db2 12 for z/OS is to optimize query performance. This includes designing efficient SQL statements, defining appropriate indexes, and structuring the application code to minimize database access and improve overall performance.
Which utility is used to load data into a Db2 12 for z/OS database?
DSNTIAUL
DSNTIUL
DSNTIPTF
DSNTIAUL
Answer: B
Explanation: The DSNTIUL utility is used to load data into a Db2 12 for z/OS database. It allows you to efficiently insert large volumes of data into tables,performing high-speed data loading operations.
Which utility is used to perform database backup and recovery operations in Db2 12 for z/OS?
DSNTIJRT
DSNTIAUL
DSNTIAUL
DSNTIPRN
Answer: D
Explanation: The DSNTIPRN utility is used to perform database backup and recovery operations in Db2 12 for z/OS. It allows you to create full or incremental backups of the database and restore it to a previous state if necessary.
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