What is the impact of scalability on performance in software systems?

What is the impact of scalability on performance in software systems?

Scalability refers to a system's ability to handle increased load. It impacts performance by ensuring that as demand grows, the system can maintain efficiency and speed.

Can you explain the difference between vertical and horizontal scalability?

Vertical scalability involves adding more power to a single machine, while horizontal scalability means adding more machines to a system.

Which approach is generally more cost-effective?

Horizontal scalability is often more cost-effective in the long run, as it allows for the use of cheaper, commodity hardware.

How does scalability affect user experience?

Scalability directly affects user experience by ensuring that applications remain responsive and fast, even under heavy load.

What are some common challenges in achieving scalability?

Common challenges include managing data consistency, ensuring load balancing, and dealing with increased complexity in system architecture.