Internetworking — Test 1

Correct Answer: A. A. True
Explanation: The statement is true. Partial mesh is a highly flexible topology that can take a variety of very different configurations. The routers are tightly coupled than the basic topologies. But they are not fully interconnected, as would be the case in a fully meshed network.

Correct Answer: B. B. Gateways
Explanation: Gateways are used for this purpose. Gateways interconnect dissimilar networks, protocol conversion is performed by them.

Correct Answer: B. B. Two-tiered
Explanation: A two-tiered topology is a modified version of the basic star topology. Rather than single concentrator routers, two or more routers are used.

Correct Answer: C. C. Three-tiered
Explanation: Wide Area Networks that need to interconnect a very large number of sites, or are built using smaller routers that can support only a few serial connections, may find the two-tiered architecture insufficiently scalable.

Correct Answer: C. C. Routers
Explanation: They are referred to as the routers. They are used for interconnecting those networks that use the same high-level protocols above network layer.

Correct Answer: B. B. Ring
Explanation: Ring topology involves sending and receiving of data with the help of tokens. Ring started out as a simple peer-to-peer LAN topology.

Correct Answer: A. A. Bridges
Explanation: Bridges operate at the bottom two layers of the OSI model. It connects networks that use the same communication protocols above data-link layer.

Correct Answer: A. A. Internetworking
Explanation: Connecting two or more networks to form a single network is called internetworking and the resultant network is called internetwork.

Correct Answer: C. C. Open system interconnection
Explanation: OSI is open system interconnection. It is a framework for defining standards for linking heterogeneous computers in a packet switched network.