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IP DATAGRAM SIZE:
Datagrams may have different sizes i.e. Header area is generally fixed (20 octets) but can have various options. Data area may contain between 1 octet and 65.535 octets (216-1).Generally, data area is much bigger than header.
FORWARDING DATAGRAMS:
Header contains all information required to deliver datagram to the receiver computer. It has:
Router checks header of every datagram and forwards datagram along path to destination.
QUESTION (a) (i) Describe Phishing attacks. (ii) Distinguish between Phishing and Spear Phishing attacks. (b) Describe two instances where an attacker sniffing on a netwo
Question: (a) What do you meant by the term diffusion and confusion? Explain how diffusion and confusion can be implemented. (b) Distinguish between authorisation and auth
Question: a) Explain what the following intermediate systems are and how they work? i. Repeater ii. Bridge b) A service is formally specified by a set of primitives (op
i want to know about cloud computing server security infrastructure development process
NSTISSC SECURITY MODEL The NSTISSC Security Model provides a detailed perspective on security. While the NSTISSC model covers the 3 dimensions of information security, it removes
SECURING THE COMPONENTS Computer can be subject of an attack or the object of an attack. When subject of an attack, computer is used as lively tool to conduct attack. The figure
(a) Mention the five main security services. (b) What is a passive attack? Give an example of passive attack? (c) What four types of active attacks and mention their respecti
Cost Benefit Analysis (CBA) The common approach for information security controls is economic feasibility of implementation. CBA is begun by evaluating the worth of assets which
Q1 (15 marks, 5 marks each part): This question has three parts: In a short paragraph (200-300 words) explain the fundamentals of Packet Switching and how it works. In a short pa
(a) (i) Bob has public RSA key (n = 77, e = 7). Show that Bob's private key is (d = 43). (ii) Alice wants to send the message m = 13 to Bob. She encrypts the message usi
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