Q1. (a) How many layers are there in our Internet model. (b) Describe each layer

Question

Q1. (a) How many layers are there in our Internet model. (b) Describe each layer's responsibility shortly. (c) Which layer splits data into datagrams Q2. Does IP make any guarantees of delivering datagrams to a destination error-free? Explain it. Q3. What do you understand when we say IP is a connectionless service. Q4. (a) How does a router determine either to forward a datagram to an outgoing link or to drop it? b) How does traceroute command accomplish its task of finding all the routers on its path to the destination address and lists the IP addresses of these routers Q5. How many unique addresses can be achieved when we are restricted to use only 4 bits? Specify all of them.

Explanation / Answer

Question 1:

a) How many layers in Internet model.

    4 layers in internet model

b) describe each layers responsibility shortly

c. Which layer splits data into datagram?

   Data link Layer(OSI model)

Question 2 : Does Ip gurantee data delivery to destination error free?

                         Yes, lot of techniques like checksum, which is error correct method that was involved ensure the safety of the data that are reaching the destination.

Question3 : What do you understand IP is connectionless service?

                     Since IP and UDP are connectionless protocols, the connection between two network can be achieved without prior arrangement using IP.So it is called as connectionless service.

Question4 : How trace route command works?

                       This command was used to give a path to packet from your system to the sytsem that you're sending the packet. It will list all the passing routers details along the way untill it reaches the destination.

Question5:

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