Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- How is it possible for a host A to transport a datagram to its destination B using the ARP protocol if the host A does not know the MAC address of the destination B?arrow_forward1. It is known that the MAC address is the only address that is used in order to communicate and reach to the destination in the local network. Study the figure below carefully and then answer the following question: Suppose that a data (shown in the figure) has arrived to the router A. The ARP table for Router A is as shown in the figure below. Discuss the necessary steps that are needed for the Router A to prepare the frame for the final hop. MAC src: 74-29-9C-E8-FF-55 ARP Table MAC dest: E6-E9-00-17-BB-4B IP src: 11.11.11.11 IP MAC TTL IP dest: 22.22.22.22 11.11.11.11 74-29-9C-E8-FF-55 22.22.22.11 88-B2-2F-54-1A-OF 20 minutes 18 minutes 11.11.11.11 22.22.22.22 74-29-9C-E8-FF-55 49-BD-D2-C7-56-2A Router A 11.11.11.10 22.22.22.20 11.11.11.22 22.22.22.11 E6-E9-00-17-BB-4B 1A-23-F9-CD-06-9B cC-49-DE-DO-AB-7D 88-B2-2F-54-1A-OFarrow_forwardIs it true that you are familiar with the three DHCP packets required to initiate the protocol's operation?arrow_forward
- ARP restricts address resolution to a single network. Could ARP send an IP datagram to a faraway server and seek a response from it?arrow_forwardThe router's layer 2 protocol has been discovered to have what problems? How may this finding be applied? When the subnet of the serial interface is changed on a PPP-encapsulated router, why does the ICMP request still function?arrow_forwardWhat will happen if traceroute is used to find the path to an unassigned address? Does it matter if the network portion or only the host portion is unassigned?arrow_forward
- If host A doesn't know the MAC address of destination B, how does the ARP protocol allow host A to send a datagram to B?arrow_forwardIn what ways does the router layer 2 protocol contain weaknesses that have been discovered? Why does sending an ICMP request over a PPP-encapsulated router cause it to operate even after changing the subnet of the router's serial interface?arrow_forward
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