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 ETIT401 Q1  Short Answer Questions. a. What is the purpose of Reverse Address Resolution Protocol (RARP)? The purpose of Reverse Address Resolution Protocol (RARP) is to obtain an IP address from a physical address. It is used by a device to discover its IP address when it knows only its physical (MAC) address. b. What is congestion control? Congestion control is the set of mechanisms used to avoid or alleviate congestion in a network. It is used to manage the amount of data being sent over a network in order to prevent network congestion, which can lead to dropped packets, increased latency, and decreased throughput. c. What is Protocol Independent Multicast (PIM)? Protocol Independent Multicast (PIM) is a multicast routing protocol that is designed to work with any unicast routing protocol. PIM is used to distribute multicast traffic in a network, enabling a single multicast source to transmit data to multiple receivers. d. Difference between connection less services and ...

  Q Describe the main principles of information security. Confidentiality : protecting information from unauthorized access. Integrity: safeguarding the accuracy and completeness of information. Availability: ensuring timely and reliable access to information. Authenticity: verifying the identity of users and the validity of information. Non-repudiation: preventing users from denying responsibility for their actions. Q What is SET? How SET makes our transactions secure? SET (Secure Electronic Transaction) is a protocol that ensures secure online credit and debit card transactions by authenticating cardholders and merchants, and providing secure channels for data transfer. Q Differentiate among Worms, Viruses and Trojan Horses. Worms, viruses, and Trojan horses are malicious software: Worms spread through networks and exploit vulnerabilities Viruses infect files and spread through downloads or sharing Trojan horses masquerade as legitimate software to deceive users and ...