Answer:
Guided media provide a physical path along which the signals are propagated; these include twisted pair, coaxial cable and optical fiber. Unguided media employ an antenna for transmitting through air, vacuum or water. Traditionally, twisted pair has been the workhorse for communications of all sorts.
Explanation:
douc54.cs.edinboro.edu /~bennett/class/csci475/spring2002/notes/chapter4/index.html
copy and paste that it might help!
Answer:
Executing multivalued attribute in
database:
Multivalued attributes are not directly
implemented in Relational Database,
instead of that follow the below possible
actions:
Explanation:
Multivalued Attributes
A multivalued attribute of an entity is an attribute that can have more than one value associated with the key of the entity. ... If attributes are restricted to be single valued only, the later design and implementation decisions will be simplified.
Example:
Consider a person can have multiple
degrees values like BSC, MCA and these
values can be stored in single attribute in a
database.
In order to help the student expand his/her
knowledge I will help answer the question. This in hope that the student will
get a piece of knowledge that will help him/her through his/her homework or
future tests.
<span>
Google Glass uses a projector that bounces a
beam of light off a prism and projects the image directly on your retina. This was shown and explained
the day it was launched. </span>
<span>
I hope
it helps, Regards.</span>
<span> </span>
The statement that Apache web server is the most widely used network operating system used on web servers is true. This server runs on <span>67% of all webservers in the world</span>
The Apache web server is a free and open-source cross-platform HTTP Server,<span> developed and maintained by </span>Apache Software Foundation.
