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a) Used for sending e-mail.
b) Uses port 25.
NICs AND NETWORK HARDWARE: NIC is create for one kind of physical network. For example Ethernet interface may not be needed with token ring and similar ATM interface cannot b
Q. What do you understand by OSI? Ans: The Open System Interconnection (OSI) reference model illustrates how information from a software application in one computer goes throug
CPU bus It is connect with various components of the system and transformation of data between components. Power Supply It is separate external part of cisco rou
Q. What is Parabolic Dish Antenna? - Incoming signals means that the Signal bounces off of dish and is directed to focus - Outgoing signals signifies transmission is broadca
Memory Memory Layout BOOTROM This device stores the information of the startup diagnostic code in permanently. It performs diagnostics of hardware wh
Can you define IKE (Internet Key Exchange)?
Describe some common threats to the hardware Theft of a computer, printer, or other resources. Tampering by a disinterested or frustrated employee who takes every chan
what is a WAN
Some multiple WAN methods are defined below: ARPANET: It start in 1960's. It was operated by Advanced Research Project Agency, which is a company of US defense department.
1. A low voltage digital device has a low state of 0 V and a high state of 1.8 V. It generates a signal train of high pulses at a rate of 1 MHz, these pulses having a 10 ns width a
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