part 1:List down the services provided by the data link layer.part 2: Suppose there are 4 nodes sharing a broadcast channel using TDMA protocol. Suppose at time t=0:Node 1 has three frames to transmit, Node 2 has two frames to transmit, Node 3 has no frame,Node 4 has four frames to transmit.The length of time slot is 2 seconds whereas time needed to transmit one frame is 1 second. Explain how TDMA will work and how much time will be taken to transmit all of these frames? part 3: Do we need to use multiple access protocol in following cases?Lab computers connected to a layer 2 switch through Ethernet cables (star topology)Two computers in an Ethernet bus topologyYour laptop is connected to BIIT network through a WiFi linkAnswer, yes or no and then justify your answer. Also, mention the name of the multiple access protocol if your answer is yes. part 4: Explain the difference between ALOHA and Slotted ALOHA, which one performs better and why?part 5 What do we mean by bit time while computing Ethernet (CSMA/CD) backoff time? part 6: Suppose there is a shared link (e.g. Ethernet bus) of 1 Mbps. How much time is needed (in microseconds) to transmit a 1000 bits long frame on this link?Suppose value of K is 1 (Ethernet CSMA/CD), compute backoff time when link capacity (data rate) is:10 kbps100 kbps

Note:- In the BNED Guidance, only the first question can be answered at a time. Resend the question…

Answered: part 1: List down the services…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Related questions

Question

part 1:

List down the services provided by the data link layer.

part 2:

Suppose there are 4 nodes sharing a broadcast channel using TDMA protocol. Suppose at time t=0:

Node 1 has three frames to transmit,

Node 2 has two frames to transmit,

Node 3 has no frame,

Node 4 has four frames to transmit.

The length of time slot is 2 seconds whereas time needed to transmit one frame is 1 second. Explain how TDMA will work and how much time will be taken to transmit all of these frames?

part 3:

Do we need to use multiple access protocol in following cases?

Lab computers connected to a layer 2 switch through Ethernet cables (star topology)
Two computers in an Ethernet bus topology
Your laptop is connected to BIIT network through a WiFi link

Answer, yes or no and then justify your answer. Also, mention the name of the multiple access protocol if your answer is yes.

part 4:

Explain the difference between ALOHA and Slotted ALOHA, which one performs better and why?

part 5

What do we mean by bit time while computing Ethernet (CSMA/CD) backoff time?

part 6:

Suppose there is a shared link (e.g. Ethernet bus) of 1 Mbps. How much time is needed (in microseconds) to transmit a 1000 bits long frame on this link?

Suppose value of K is 1 (Ethernet CSMA/CD), compute backoff time when link capacity (data rate) is: