The document poses a series of questions related to networking, focusing on criteria for an effective network, the distinction between LAN and WAN, and the differences between internet drafts and proposed standards. It also addresses TCP/IP protocol data units across different layers, the necessity of routers in specific circumstances, and measures of network reliability and performance. Additionally, it touches on network topologies, specifically the requirement of a central controller in certain configurations.

1. 17.1
Q1:- What are the three criteria necessary for an effective and efficient network?
Q2:- What are some of the factors that determine whether a communication system is a
LAN or WAN?
Q3:- Explain the difference between an Internet draft and a proposed standard.
the
Q4:- A host communicates with another host using the TCP/IP protocol suite. What
is the unit of data sent or received at each of the following layers?
a. application layer b. network layer c. data-link layer
Q5:- If there is a single path between the source host and the destination host, do
we need a router between the two hosts?
Q6 The _______ is the physical path over which a message travels.
A. Protocol B. Medium C. Signal D. All the above
Q7:- Frequency of failure and network recovery time after a failure
are measures of the _______ of a network.
A. Performance B. Reliability C. Security D. Feasibility
Q8:- Which topology requires a central controller or hub?
A. Mesh B. Star C. Bus D. Ring