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- Light source is LED (light-emitting diode) or a laser
- LEDs are cheaper however not as precise (unfocused) limited to short-distance use
- Lasers is able to have a narrow range and better control over angle
- Receiving device requires a photosensitive cell (photodiode) capable of receiving the signal
- Utilizes SC- Subscriber channel & ST-straight tip connectors
Q. Describe the Class C Addresses? The initial three octets are the network number as well as the last octet is the host number 2096896 blocks used for assignment to o
What is the difference between a JDK and a JVM? JDK is Java Development Kit which is for development purpose and it contains execution environment also. But JVM is purely a
Can you describe RSVP?
Fixed version of rdt 2.0 rdt 2.1 The rdt 2.1 sender and receiver FSM each now have twice as many states as before. This is because the protocols state must now refle
Determine the term- Web Server and Webmaster Web Server: A host computer that stores Web pages and responds to requests for viewing. Web servers communicate with Web browse
can we correct errors using crc?
ARP sent the request in broadcast, response is unicast When a source sends ARP request the switch broadcast the ARP req. if it doesn't have the destination mac address in its ma
Repeaters - Operate only in physical layer - Connects two segments of the same LAN - Both segments must be of the same protocol - Only forwards frames; does not filter
Determine the benefits of security on internet or intranet Security has long been seen as a major threatening point in the implementation of the Internet or of Intranet technolog
The Received Message If we didn't mention another class of header lines that are inserted by the SMTP receiving server. The receiving server upon receiving a message wit
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