Answered: Working from a PC on a local network…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Working from a PC on a local network connected to an internet router with the IP address 10.0.0.5. A web page is requested by a browser. Describe when and why each of the following networking elements is active. Precision is essential. NAT, ARP, DNS, UDP, and TCP

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Step 1

Most Internet-connected homes use a home network gateway to connect a local area network (LAN) in the home, to a wide area network (WAN) such as the Internet. In this experiment, we will look at some of the services that are always or often included on these gateways:

routing between the LAN and WAN,
DHCP, to provide hosts in the home network with IP addresses,
DNS, to respond to name resolution queries from hosts in the home network,
NAT (Network Address Translation), to map one public IPv4 address to internal (private) IP addresses assigned to hosts on the home network.

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