When implementing file locking, the _______ and _______ modes are used to specify the type of access allowed to files.
- Open, Close
- Read, Write
- Sequential, Indexed
- Shared, Exclusive
In COBOL, file locking mechanisms utilize two modes: Shared and Exclusive. Shared mode allows multiple users to read the file simultaneously, while Exclusive mode grants exclusive access to a single user for both reading and writing operations. These modes help control access and prevent conflicts among concurrent users.
Loading...
Related Quiz
- When performing arithmetic operations in COBOL, the _____ statement is used for adding values.
- In a team project, you need to create a hierarchy of classes with common attributes and behaviors. How can you implement this efficiently in Object-Oriented COBOL?
- In COBOL, to open a file for both reading and writing, you typically use the _____ access mode.
- When working with indexed files, the ______ clause is used to define the structure of the index file.
- What is the purpose of the OCCURS clause in COBOL?