In Stop and wait protocol, sender wait for ACK before sending next packet. But what if an ACK is dropped in the network and never reached to sender. What sender should do in that case?A sender process transmits 100 packets towards destination process. Out of 100, 80 packets successfully reach the destination whereas 20 packets drop in the network. How many ACKs will be sent by the receiver towards sender while using:ACK (positive/ normal ACK)NACKWhy do we need length field in UDP header when we know that the length of the UDP header is always fixed (i.e. 8 Bytes)?

Given: Network protocol: Stop and Wait is given. It includes sender, receiver, and a network. Goal:…

Answered: In Stop and wait protocol, sender wait…

In Stop and wait protocol, sender wait for ACK before sending next packet. But what if an ACK is dropped in the network and never reached to sender. What sender should do in that case?

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter6: Security Technology: Access Controls, Firewalls, And Vpns

Section: Chapter Questions

Problem 2RQ

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Concept explainers

Types Of Protocols

A network protocol is a collection of rules that governs the exchange of data between devices connected to the same network. In other words, network protocols are rules that specify how devices communicate or transfer data over a network. The sender and receiver systems must obey the standards to facilitate communication between them.

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In Stop and wait protocol, sender wait for ACK before sending next packet. But what if an ACK is dropped in the network and never reached to sender. What sender should do in that case?
A sender process transmits 100 packets towards destination process. Out of 100, 80 packets successfully reach the destination whereas 20 packets drop in the network. How many ACKs will be sent by the receiver towards sender while using:

ACK (positive/ normal ACK)
NACK

Why do we need length field in UDP header when we know that the length of the UDP header is always fixed (i.e. 8 Bytes)?

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In Stop and wait protocol, sender wait for ACK before sending next packet. But what if an ACK is dropped in the network and never reached to sender. What sender should do in that case? A sender process transmits 100 packets towards destination process. Out of 100, 80 packets successfully reach the destination whereas 20 packets drop in the network. How many ACKs will be sent by the receiver towards sender while using: ACK (positive/ normal ACK) NACK Why do we need length field in UDP header when we know that the length of the UDP header is always fixed
Question 2:a) In Stop and wait protocol, sender wait for ACK before sending next packet. But what if an ACK is dropped in the network and never reached to sender. What sender should do in that case?b) A sender process transmits 100 packets towards destination process. Out of 100, 80 packets successfully reach the destination whereas 20 packets drop in the network. How many ACKs will be sent by the receiver towards sender while using: • ACK (positive/ normal ACK)• NACKc) Why do we need length field in UDP header when we know that the length of the UDP header is always fixed (i.e. 8 Bytes)?
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A sends a total of 12 data packets to b using the stop wait protocol, as shown in the figure. How many packets must sender A transmit to recipient B if every third packet is lost in transmission?
consider the sender A transmits 12 data packets to b using stop wait protocol. if every 3rd packet is lost while transmission then how many packets will the sender A has to send to B in total
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Consider a network with 4 links between two hosts where the maximum allowable packet size is 1000 bits; each link has a transmission rate of 2000 bits per second, except the second link has a transmission rate of 1000 bits per second. How long does it take to send 6000 bits from one host to the other? You may ignore propogation delay, assume there is no other traffic on the network, and assume that no routers drop packets due to queue length. Round your answer to two decimal places.
Draw a space-time diagram similar to Figure 3.22 of textbook for the following problem: Sender is sending 10 packets to receiver. Stop after 7 packets are accepted by receiver. Protocol Used: Go-Back-N Sliding Window size = 6 Timeout interval =1RTT Assume transmission time of a packet = 1/4 RTT Assume Packet 1 is lost, then ACK 2 is lost, and then ACK 6 is lost Note: The sender starts a timer when base = nextseqnum, i.e. at beginning of your example. Then when an ACK is received, if base is not nextseqnum, the timer is started.
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Consider the sender A transmits 12 data packets to B using stop wait 3rd packet is lost while transmission , then how many packets will send to B in total