College Name: Florida Tech
Subject: Networks and Communication
Course Code: MGT 5157
Title: ASSIGNMENT 2
Question 40861: • Explain what modern computer networks are and the general principles behind data communications
• Incorporate common connectivity terms
• Distinguish among different types of switched networks
Instructions
For each of the multiple-choice questions below, choose one of the options and explain your answer (10 points each). For the others, provide an explanation (15 points each). Each of your explanations should be a minimum of one paragraph (four to five sentences).
1. Routers operate at:
a. Layer 2
b. Layer 3
c. None of the these
2. TCP and UDP operate at the following layer of the protocol stack:
a. Data link layer
b. Network layer
c. Transport layer
3. Suppose there is exactly one packet switch between a sending host and a receiving host. The transmission rates between the sending host and the switch and between the switch and the receiving host are R1 and R2, respectively. Assuming that the switch uses store-and-forward packet switching, answer the following questions:
a. Describe the functions of a store-and-forward packet switch.
b. Identify and explain each of the types of delays that should be considered to calculate the total end-to-end delay to send a packet of length L.
c. Explain the difference between variable and constant delays and identify which of the delays described in (b) are constant and which are variable.
4. Describe the concept of encapsulation in layered architectures and explain the importance, and possible downsides, of encapsulation in multilayered architectures.
