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What is Proxy Sever and Firewall
Proxy Sever
Also known as a proxy or application level gateway. It is an application that breaks the connection among sender and receiver. Thus, it helps us to stop hacker from getting Internet address and detail of a private network.
Firewall
Firewall is a method for keeping a network secure. It is mainly used in giving user's access to the Internet in a secure fashion as well as to separate a company's public web server from its internal network.
What is Protocol Data Unit? The data unit in the LLC level is known as the protocol data unit (PDU). The PDU having of four fields a destination service access point (DSAP), a
Reliable Data Transfer Figure illustrate the framework for reliable transfer. The service abstraction provided to the upper layer entities is that of a reliable channel
the equation x3-6x+9x-5=0
Disadvantages of Fiber Optics - Installation/maintenance - Unidirectional - Cost
What is the Frame A presentation format, which enables Web page designers and users to mark a part of the screen for links to other pages. Frames usually appear on the left
Describe distance vector routing protocol?
Security Security is the protection of hardware software and data from unauthorized access. Restricted physical access to computer password protection limiting user priv
Question 1 Explain the following with respect to Data Encoding Digital Signaling of Digital Data Digital Signal Encoding Techniques Questi
The Network Control Unit (NCU) is a field panel housing electronic modules, terminal blocks, and signal conditioners (pneumatic, linevoltageand electronic) all inside a one enclosu
Tools for Digital Sound Sound is the oscillation of pressure that propagates in the form of a wave. Sound waves are transmitted through some medium (solid, liquid, or gas); th
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