Which two WAN options are examples of private WAN architecture?

Which two WAN options are examples of private WAN architecture?

• A. ATM
• B. Frame Relay
• C. Leased line
• D. Ethernet WAN

Answer: (C)

Private WAN architectures are designed for organizations to create dedicated communication channels, offering secure and reliable connectivity. Among the given choices, leased lines are a prime example of private WAN architecture. Leased lines are dedicated circuits that provide a permanent, private connection between two points. This means that the bandwidth is allocated entirely to the subscribed organization, resulting in consistent performance and security, as they do not share the infrastructure with other users. This exclusivity is a hallmark of private WAN solutions, making leased lines suitable for businesses that require reliability and privacy for their communications. In contrast, while ATM, Frame Relay, and Ethernet WAN can also serve wide area networking needs, they often involve shared infrastructure or other features that do not guarantee the same level of exclusivity and privacy that leased lines provide. For example, Frame Relay can be a shared service, where multiple virtual circuits can traverse the same physical connection, leading to potential performance variability and security concerns. Thus, leased lines stand out as a pure private WAN solution.

Private WAN architectures are designed for organizations to create dedicated communication channels, offering secure and reliable connectivity. Among the given choices, leased lines are a prime example of private WAN architecture.

Leased lines are dedicated circuits that provide a permanent, private connection between two points. This means that the bandwidth is allocated entirely to the subscribed organization, resulting in consistent performance and security, as they do not share the infrastructure with other users. This exclusivity is a hallmark of private WAN solutions, making leased lines suitable for businesses that require reliability and privacy for their communications.

In contrast, while ATM, Frame Relay, and Ethernet WAN can also serve wide area networking needs, they often involve shared infrastructure or other features that do not guarantee the same level of exclusivity and privacy that leased lines provide. For example, Frame Relay can be a shared service, where multiple virtual circuits can traverse the same physical connection, leading to potential performance variability and security concerns. Thus, leased lines stand out as a pure private WAN solution.