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Repeater known as regenerator; it is an electronic machine that performs only at physical layer. It gets the signal in the network before it becomes loss or weak, recreates the original bit pattern and transfer the refreshed copy back in to the layer.
Question: (a) What is the minimum length of a password that could be considered to be "strong" in the context of today's computing power? (b) The security of a PIN system,
Advantages and Disadvantage of Packet Filtering firewall Advantages One screening router can help protect entire network One key advantage of packet filter
QUESTION (a) Define and distinguish between Electronic Commerce and Electronic Business (b) According to you what are the benefits that Electronic Commerce can brings to org
Data units at different layers of the TCP/ IP protocol suite The data unit prepared at the application layer is known a message, at the transport layer the data unit build is
ROUTING TABLE For efficiency, information about forwarding is saved in a routing table, which is started at system initialization and must be updated as network topology modif
(a) Describe DES encryption with a block diagram and brief steps. (b) How does triple DES improve security. What is the effective key length of triple DES? How can 3DES be compa
Da t a compre s sion and the trans p ort s e rvices, The main purpose of the transport layer is to provide services which are efficient, reliable and cost-effecti
ADVANCED RESEARCH PROJECT AGENCY (ARPA) The efforts of ARPA was to active all its research groups have accept to new era computers. For this purpose ARPA started investing in wa
Q. Develop a completely secure WSN based on the triple key? Wireless network is the most vulnerable type of network to security attack. Unauthorized access to wireless network
Broadcasting is the distribution of video and audio content to a whole audience via any audio or visual mass communications medium, but generally one using electromagnetic radiat
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