One, why do protocols like HTTP, FTP, SMTP, and POP3 use TCP instead than UDP? When comparing Routing and Forwarding, what are the key distinctions? Three, explain H
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One, why do protocols like HTTP, FTP, SMTP, and POP3 use TCP instead than UDP?
When comparing Routing and Forwarding, what are the key distinctions?
Three, explain HOL blocking. Which ports, input or output, are affected?
Step by step
Solved in 3 steps
- Why do protocols like HTTP, FTP, SMTP, and POP3 use TCP instead of UDP? When comparing Routing and Forwarding, what are the key distinctions? How does HOL blocking work? Where does it happen, the input or the output?TCP / IP uses the client-server communication model, in which a user or computer (a client) receives a service (such as sending a web page) from another computer (a server) on the network. In short, the TCP / IP protocol suite is classified as stateless, which means that each client request is considered new because it has nothing to do with previous requests. Being stateless, network routes are released so that they can be used continuously. Answer the following questions briefly. How does resource reservation work in the TCP / IP model? Which TCP / IP layer is responsible to reserve resources across a network using the TCP / IP model? What protocol assigns an IP address to the client connected to the Internet? Checksum is used by various protocols on the Internet, but not at the one of TCP / IP Explain.Task NW29. UDP is the simplest transport layer communication protocol. It contains a minimum amount of communication mechanisms. It is considered an unreliable protocol, and it is based on best-effort delivery services. UDP provides no acknowledgment mechanism, which means that the receiver does not send the acknowledgment for the received packet, and the sender also does not wait for the acknowledgment for the packet that it has sent. An end system sends 50 packets per second using the User Datagram Protocol (UDP) over a full duplex 100 Mbps Ethernet LAN connection. Each packet consists 1500B of Ethernet frame payload data. What is the throughput, when measured at the UDP layer? Task DS30
- Examining the pros and cons of connection-based versus connectionless protocols is a valuable exercise.Both UDP and TCP use port numbers to identify the destination entity when delivering a message. Give two reasons for why these protocols invented a new abstract ID (port numbers), instead of using process IDs, which already existed when these protocols were designed.One helpful exercise is to weigh the merits of connection-based versus connectionless protocols against one another.
- Network Address Translation, or NAT, was used very often before IPv6 was fully implemented as a means to mask IPs, as well as to have many more IPs at one's disposal behind a router. Now that we are fully into using IPv6, is NAT needed anymore? What would some of the utility of NAT be?Firstly, it is worth considering the rationale behind the utilization of TCP rather than UDP by protocols such as HTTP, FTP, SMTP, and POP3.Why do HTTP, FTP, SMTP, and POP3 use TCP over UDP instead of the other protocol? How do routing and forwarding differ from one another? What does HOL blocking mean? Does it happen in output or input ports?
- It would be interesting to examine and contrast the advantages of connectionless protocols with those of connection-based protocols.Data collision happens when many senders attempt to access the medium at once; what protocols are available to avoid this, and at what layer(s) do they operate? Can these methods provide reliable transmission with no chance of collisions? What other possibilities do we have for fixing the issue if this doesn't work?Both TCP and UDP are separate protocols that may be contrasted with one another. Give us an example of two circumstances in which you, as a software architect, might choose to make use of TCP rather than UDP.