__________ is an alternative to the use of gateway to communicate between autonomous networks, using multiprotocol router.

A. Routing
B. Tunneling
C. Balancing
D. Switching

Explanation: Tunneling is a process used when the source and the destination are on the same network. Though different protocols are to be applied while data traverses through dissimilar networks, protocol conversion is not implemented here. Instead, the data frames are encapsulated and transmitted through the networks.

__________ is a routing technique deployed in the Edge Routers.

A. Multiprotocol label switching (mpls)
B. Fixed weighted
C. Round robin
D. Adaptive balancing

Explanation: The name edge router arises from the fact that edge routers generally operates on the edge of a network. MPLS is a routing technique that is used by Edge routers and these routers are termed as MPLS Edge routers. Whereas Fixed weighted, Round Robin and Adaptive balancing are load balancing techniques and not routing techniques.