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a) determine the RTT (round trip time) between a client requesting a web page of 1024 bytes in size from an internal web server on a 100 Base-T Ethernet. Assume a one-way propagation delay of 10 s and that the request and header response messages are of negligible size and all other delays are zero.
b) Consider the arrangement of ‘self-learning' bridges shown in the figure below. Assuming all are initially empty, give the forwarding tables for each of the bridges W, X, Y and Z after the following transmissions: Host A sends to Host C, Host D sends to Host B, and Host C
c) Give an example of a transmitted byte-stream in Basic Encoding Rule (BER) by using the following data type declarations and its corresponding instances:
nickname ::= OCTET STRING {nickname, "King Kenny"} number ::= INTEGER {number, 7} active ::= BOOLEAN [0=NO, 1=YES] {inactive, 0}
d) i) Give the structure of typical SNMPv1 get and trap messages. ii) Which MODULE IDENTITY does this OBJECT ID belong to: 1.3.6.1.2.1.5.1
IDS RESPONSE BEHAVIOR Once IDS detects an anomalous network situation, it has a number of options. IDS responses to external stimulation can be classified as active or passive.
FRAGMENTATION One method is to limit datagram size to smallest MTU of any server. IP needs fragmentation i.e. datagrams can be divided into pieces to fit in network with small
This project involves the design and development of a simulation environment of many sensors tagging material/ machinery/equipment/etc in a warehouse site to help monitor and manag
(a) Briefly explain the following security goals provided by cryptography: confidentiality, authentication, integrity and non-repudiation. (b) State Kerckhoff's Princip
a) Define the term "Enterprise Network". b) Briefly discuss the similarity and differences between a switch and a router. c) A company XYZ has been renting the 1 st Floor of
Screened Subnet Architecture This setup provides an extra security layer to screened host architecture by creating a perimeter subnet which further isolates internal network f
Netfilter Firewall Netfilter is the popular name for the packet filtering system installed by default in the Linux kernel. The filtering system can be used as a very effective
Question: a) Explain what you understand by the term brute force attack, giving an example of such an attack b) Briefly outline the concept of Caesar cipher and identify a
Question 1 The speech act theory is used as the model for communication among computational agents. Locution, illocution, and perlocution are the 3 aspects of this theory Using
project on ensuring data securities on cloud computing
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