WIRELESS NETWORKS AND MOBILE IP
WIRELESS NETWORKS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Is another name for a router
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Is the central server on a typical LAN
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Looks up IP addresses from URLs
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Organises data in packets
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Detailed explanation-1: -DNS servers convert URLs and domain names into IP addresses that computers can understand and use. They translate what a user types into a browser into something the machine can use to find a webpage. This process of translation and lookup is called DNS resolution.
Detailed explanation-2: -Using the DNS lookup tool Both the ping command and nslookup command are options for finding the IP address of a website. However, the simplest way to determine the IP address of a website is through the DNS lookup tool. Go to the DNS lookup tool, type the website URL into the text entry, and click Lookup.
Detailed explanation-3: -DNS is short for Domain Name System. Like a phone-book, DNS maintains and maps the name of the website, i.e. URL, and particular IP address it links to. Every URL on the internet has a unique IP address which is of the computer which hosts the server of the website requested.
Detailed explanation-4: -Access your command prompt. Use the command nslookup (this stands for Name Server Lookup) followed by the domain name or IP address you want to trace. Press enter. This command will simply query the Name Service for information about the specified IP address or domain name.