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Problem 1:
(a) Briefly explain each of the following wireless standards:
(i) WiFi (ii) WiMAX (iii) 3G.
Problem 2:
(b) Bluetooth is an industrial specification for wireless personal area networks. Bluetooth provides a way to connect and exchange information between devices like personal digital assistants (PDAs), mobile phones and laptops via a secure, globally unlicensed short range radio frequency. A future version of Bluetooth code-named, Lisbon, would provide improved security and usability features.
Briefly explain each of the following features of Lisbon:
(i) Extended Inquiry Response (ii) Atomic Encryption Change (iii) Sniff Subrating (iv) Qos (v) Simple Pairing.
State the Example of security audit as case study Linda narrates one of her experience about a security audit. She was performing a spot audit where she was checking certain
a) Assume that the time required to transmit one packet (i.e. the packet length divided by link data rate) is 10ms and the Round Trip Time (from Source to Destination and back) is
What is the internal IP address There is a separate set of IP address for a company's internal use, more popularly known as "internal IP address" or subnet IP address. This IP
Q. TCP – numbering bytes? Numbering is utilized for flow & error control Segments aren't numbered only bytes Full-duplex connection - numbering is independent in
Q. Basic working of Spanning Tree? Spanning Tree - Redundant bridges may be installed to provide reliability - To prevent infinite looping of packets between bridges,
What is Redundancy? The method of including extra information in the transmission solely for the purpose of comparison. This technique is known as redundancy.
What is the method of NLRI?
Tree interconnection network: In tree interconnection network, processors are organised in a complete binary tree pattern. Figure: Tree interconnection network
a. If a password to a cipher is exactly 8 characters long, and each character can be selected from [0-9], [a-z], and [A-Z], how many different passwords are possible? b. Suppose
Q. What is Cross over cable? - Cross the critical pair to properly transmit, align and receive signals on devices with like connections. - Pin 1 connected to pin 3 as well a
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