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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
A Network is described as a system for connecting computers using a single transmission technology. The computers can interact with each other in a network. They can receive an
QUESTION (a) Consider the following digital bit stream 01001100 is to be encoded in: i. NRZ-I ii. Pseudoternary iii. Manchester iv. Differential Manchester Show th
differentiate between internet and www
Information asset classification-risk management A number of organizations have data classification schemes (for instance confidential, internal, public data). The classificat
Question: (a) Describe how IPSec provides data source authentication. (b) Which protocol can be used to provide limited traffic analysis confidentiality? Why is it "limite
Detect each visit to www.google.com that is made by the machine. o Send an alert when an activity relating to network chat is detected. o Send an alert when an attempt is made for
Guided Media These are those that give a conduit from one machine to another that add twisted-pair, fiber-optic cable and coaxial cable. A signal traveling along any of these
Repeater known as regenerator ; it is an electronic machine that performs only at physical layer. It gets the signal in the network before it becomes loss or weak, recreates the
Spambot Detection: The previous studies in this field have focused on content and meta-content based features. The main assumption in this area of spam detection of late is
QUESTION: a) Below is a capture of an Ethernet II frame which has an IPv4 packet and a segment. Provide the source MAC address in hexadecimal; the source IP address, the length
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