A. Gateways are assumed to know correct routes; hosts begin with minimal routing information and learn new routes from gateways.
B. Layered protocols are designed so that layer n at the destination receives exactly the same object sent by layer n at the source.
C. Application programs as well as all protocol software from the Internet layer upward use only IP addresses; the network interface layer handles physical addresses.
D. All of the above
E. None of the above
Correct Answer
All of the above
Networking problems
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1. Error detection at a data link level is achieved by
Correct Answer: the virtual circuit interface to packet-switched service
3. What is the name of the computer based EMMS that provides a common forum where users can check in at their convenience, post messages, actively exchange ideas and participate in ongoing discussions?
9. You are working with a class C network. You are required to configure it for five subnets, each of which will support 25 nodes. What subnet should you use?