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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
The "Big Red Rocks" (BRR) mining company is based and operates in Western Australia. They are primarily an iron ore miner, but they also produce electricity through tidal power to
IPV6 DATAGRAM FORMAT It is given in the figure below:
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
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
TRAP AND TRACE SYSTEMS Trap and Trace Systems use techniques to detect an intrusion and trace it back to its source. Trap comprises of honey pot or padded cell and alarm. The dr
IPV6 NEXT HEADER It is given in the figure below:
INFORMATION CLASSIFICATION The classification of information is an important aspect of policy and a control for the information protection. A clean desk policy stipulates that a
The following message was enciphered with a Vigenère cipher. aikiaawgfspxeppvjabjnivulfznzvkrlidamsmyamlvskniyffdpbwtnxsvvbtnamvltsefoeycztkomylmerkwrs deusjgecmzkwvnreeyp
In this section, you should create a program that emulates a GBN node. Two GBN nodes will be running to send packets to each other through the UDP protocol. For emulation purpose,
Topic -Spam is an ever-growing problem, with some network administrators reporting that 90% or moreof the email delivered to their mail servers is spam. Identify and briefly evalua
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