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Exam Code : C1000-122
Exam Name : Db2 12 for z/OS DBA Fundamentals
Vendor Name :
"IBM"

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Question: 1

What is the purpose of the security labels in Db2 12 for z/OS?

1. To enforce row-level security for the database

2. To classify and protect sensitive data in the database

3. To control access to the database objects

4. 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.

Question: 2

How does Db2 12 for z/OS handle data concurrency?

1. By using row-level locking

2. By using table-level locking

3. By implementing optimistic concurrency control

4. 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.

Question: 3

for z/OS database?

1. SELECT XMLQUERY

2. SELECT XMLTABLE

3. SELECT XMLGEN

4. 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.

Question: 4

Which Db2 12 for z/OS object is used to enforce referential integrity constraints?

1. Index

2. View

3. Trigger

4. 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.

Question: 5

1. To determine the hardware requirements for the database

2. To define the logical and physical structure of the database

3. To create backup and recovery strategies for the database

4. 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.

Question: 6

What is the purpose of a database trigger in Db2 12 for z/OS?

1. To enforce data validation rules

2. To control access to the database objects

3. To monitor and log database activity

4. 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.

Question: 7

What is the purpose of application design in Db2 12 for z/OS?

1. To optimize query performance

2. To define the database schema

3. To establish security policies for the application

4. 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.

Question: 8

Which utility is used to load data into a Db2 12 for z/OS database?

1. DSNTIAUL

2. DSNTIUL

3. DSNTIPTF

4. 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.

Question: 9

Which utility is used to perform database backup and recovery operations in Db2 12 for z/OS?

1. DSNTIJRT

2. DSNTIAUL

3. DSNTIAUL

4. 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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