QUESTION 3 Each question is worth 2 points each unless specified otherwise. Fill in the blanks 1. [4 Points] In packet switching, to send a message from a source end system to a destination end system, the source breaks long into smaller chunks of data known as Between source and destination, each travels through communication links and switches (for which there are two predominant types and 2. The amount of time required to push all of a packet's bits into a link is called the 3. The time required to send a bit from the beginning of the link to the end of a link is called the 4. [4 Points] The Internet's Web document request and transfer), delay delay includes many protocols, such as the protocol (which provides for (which pro-vides for the transfer of e- mail messages),and (which provides for the transfer of files between two end systems) 5. [4 Points] In the Internet there are two transport protocols connectionless service to its applications. This is a no-frills service that provides no reliability, no flow control, and no congestion control. The includes guaranteed delivery of application-layer information to the destination and flow control (that is, sender/ receiver speed matching) mechanism, so that a source throttles its transmission rate when the network is congested 6. How many IP Protocols are there on the Internet? 7. Give one example of link-layer protocol 8. In a many other hosts, called 9. Internet protocols are defined and standardize in and The protocol provides a protocol provides a connection-oriented service to its applications. This service also breaks long into shorter and provides a congestion-control architecture, there is an always-on host, called the which services requests from