A dedicated line is a private communication line that connects two locations, ensuring a constant and exclusive connection. This type of line is often used by businesses for secure data transmission, voice calls, or internet access, providing reliable service without interference from other users. Unlike shared lines, dedicated lines offer higher bandwidth and lower latency, making them ideal for critical applications. They are commonly used in industries such as finance and telecommunications, where uninterrupted service is essential. Examples of dedicated lines include T1 and T3 lines, which are standard in many corporate environments.