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Why are semaphores used?
In computer science, a semaphore is a protected variable or abstract data type which constitutes the classic method for restricting access to shared resources such as shared memory in a multiprogramming environment. Hence as a security feature it is largely used Kushal P. Bathija
What is concurrent schedule in dbms?
A concurrent schedule in DBMS refers to multiple transactions running concurrently without interfering with each other. This allows for improved performance and efficiency in handling multiple operations simultaneously. However, it requires careful management to ensure data consistency and avoid conflicts such as race conditions.
What is View Serializable in DBMS?
View Serializable is a correctness criterion in database management systems that ensures that the final result of executing concurrent transactions is the same as if they were executed one after the other. This property helps maintain data consistency and ensures that the database remains in a consistent state despite concurrent transaction execution. Transactions are said to be view serializable if their interleaved execution produces the same results as if they were executed sequentially.
How database provide informatiom to multiple users?
Databases allow multiple users to access information simultaneously through features such as user permissions and concurrent access control. Each user is granted specific levels of access to the data, ensuring data integrity and security while allowing for collaboration and sharing of information. Additionally, databases can handle multiple queries and transactions at the same time, allowing various users to interact with the data concurrently.
Why would you choose a database system instead of simply storing data in operating system files When would it make sense not to use a database system?
A database system provides structured data storage, efficient retrieval, data integrity, and concurrent access control that are not available with OS files. It is suitable when data needs to be queried, updated frequently, and maintained consistently across multiple users or applications. Using OS files might be more appropriate for storing small, non-relational datasets that do not require complex querying or transactional support.
What are types of control in business organization?
· Feedback control · Concurrent control · Feedforward control
Which type of control takes place while plans are being carried out?
concurrent control
Importance and limitations of concurrent control?
how can i as you n then you tel me to aswer it? think
Is the government control over immigration an inherent or concurrent power?
Inherent
What is control techniques?
several problems can occur when concurrent transaction execute in an uncontrolled manner.
What is concurrent possession?
It means that - while you may not actually have it on your possession - you are near enough to it to have it in your control, or under your control - just as if you actually had it on you.
Which kind of control takes place after the actual work has been carried out?
Feedforward.
What is disadvantages of concurrency control?
Disadvantage of concurrent control: Since concurrent control uses a series of checks throughout the process/project chain, clarity about the standards required at each control point is essential. This requires a thorough and detailed understanding of the specific tasks involved and their relationship to the desired end product/project outcomes.
What are 3 basic categories of control?
The three basic categories of control are feedforward control, concurrent control, and feedback control. Feedforward control involves anticipating potential issues and implementing measures to prevent them before they occur. Concurrent control monitors ongoing processes to ensure they align with established standards and objectives. Feedback control assesses outcomes after a process has been completed to evaluate performance and guide future improvements.
What are the 4 types of Control and how do they function?
The four types of control are feedforward control, concurrent control, feedback control, and bureaucratic control. Feedforward control anticipates problems before they occur by monitoring inputs and processes. Concurrent control takes place during the execution of activities, allowing for real-time adjustments. Feedback control evaluates the outcomes after processes are completed, using results to inform future actions and improve performance.
What is concurrency control techniques?
several problems can occur when concurrent transaction execute in an uncontrolled manner.
What powers are shared by the federal and the state governments?
concurrent
