Cisco Certified Network Associate (CCNA) Practice Exam

What is the purpose of a Switched Virtual Circuit (SVC) in a Frame Relay network?

1. To provide a dedicated physical path

2. To establish a dynamic logical connection

3. To enhance the security of data transmission

4. To monitor traffic congestion

The correct answer is: To establish a dynamic logical connection

The purpose of a Switched Virtual Circuit (SVC) in a Frame Relay network is to establish a dynamic logical connection. SVCs are designed to provide a way for users to create temporary connections that can be set up and torn down as needed, allowing for efficient use of bandwidth. This is particularly useful in scenarios where the communication needs vary over time, as SVCs can be established on demand rather than requiring a dedicated physical path. When a device needs to communicate with another device that does not have a permanent connection, the SVC can be initiated, allowing for data to be sent over the Frame Relay network as if a dedicated circuit were available, but without the overhead of maintaining an idle connection when it's not needed. This flexibility is one of the key benefits of using SVCs, as it helps optimize network resources and manage costs effectively. In contrast, other options deal with aspects such as dedicated paths, security measures, or monitoring traffic, which do not align directly with the primary function of SVCs in providing a temporary and dynamic connection for data transmission.