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Unguided Media
This is the wireless media that transfer electromagnetic waves without using a physical media. Waves are broadcast through the air. This is performing through radio communication, cellular telephony and satellite communication. Unguided transmission media are functions that give the transmission of data without the use of physical media means to describe the way it takes. Unguided media gives a means for transmitting electromagnetic signals but do not operate them.
(a) Explain the importance of the Euler Totient function in Cryptography. Calculate Euler Totient function value, φ(1280). (b) Explain the role of the Authentication Server (
Public Key Infrastructure (PKI) It is integrated system of software, encryption methodologies, protocols, legal agreements, and 3rd-party services enabling users to communicate
Question a) From the capture below: Give the datagram source IP address, upper layer protocol, Total length in decimal and header checksum in hexadecimal; the segment source po
Question: (a) Which of the following is not a goal of security: i) detection ii) prevention iii) recovery iv) prosecution (b) You are an honest student. One day you
Hashing is the transformation of a string of characters into a generally shorter fixed-length key or a value that presents the original string. Hashing is used to index and retri
Dynamic Packet Filtering Dynamic Packet Filtering is also referred to as stateful firewalling. Here the firewall maintains the status of connections as well. When a connection
Question : (a) There are two approaches for providing confidentiality for packets in a network using symmetric encryption: End-to-End Encryption and Link Encryption. State wh
STAR TOPOLOGY In this topology, all devices are attached to a central point, which is sometimes known as the "Hub" as given in the diagram below. Figure: An ideal
#Under what circumstances would the use of a SecSDLC be more appropriate than an SDLC?
Attacks on Cryptosystems Attacks are attempts to achieve unauthorized access to secure communications have characteristically used brute force attacks. Attacker may alternatively
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