How does a newly-installed personal computer connected to an Ethernet discover the IP addresses
of local servers? How does it translate them to Ethernet addresses?
What will be an ideal response?
The first part of the question is a little misleading. Neither Ethernet nor the Internet support ‘discovery’
services as such. A newly-installed computer must be configured with the domain names of any servers that it
needs to access. The only exception is the DNS. Services such as BootP and DHCP enable a newly-connected
host to acquire its own IP address and to obtain the IP addresses of one ore more local DNS servers. To obtain
the IP addresses of other servers (e.g. SMTP, NFS, etc.) it must use their domain names. In Unix, the nslookup
command can be used to examine the database of domain names in the local DNS servers and a user can select
approriate ones for use as servers.The domain names are translated to IP addresses by a simple DNS request.
The Address Resolution Protocol (ARP) provides the answer to the second part of the question. This is
described on pages 95-6. Each network type must implement ARP in its own way. The Ethernet and related
networks use the combination of broadcasting and caching of the results of previous queries described on page
96.
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An example of an ________ question is "Explain how you make a purchasing decision?"
A) open-ended B) closed-ended C) true/false D) multiple choice
Define enticement and entrapment and compare the two.
What will be an ideal response?
It is not important for the database designer to check the record set before running a Make Table query
Indicate whether the statement is true or false
When you add a graphic to a website, Dreamweaver automatically adds it to the ____________________ panel.
Fill in the blank(s) with the appropriate word(s).