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In broadcast topology there are further two types
1) SATELLITE\RADIO 2) RING TOPOLOGY
In a radio or satellite topology every computers are connected to each other via radio or satellite wave as given in the figure.
Figure: Satellite and Ring topologies:
In a ring topology every computer is connected to thorough a ring as given in the figure above.
Question: (a) What is Network Address Translation (NAT)? Why is it used? (b) Given a following information by your ISP about your newly acquired Frame Relay connection:
Discuss how developers should apply the following countermeasures to improve the security of their code:
QUESTION (a) Consider the following authentication options A. Using password B. Using pin and fingerprint Which option A or B provides stronger security and why? (b
ROUTING TABLE For efficiency, information about forwarding is saved in a routing table, which is started at system initialization and must be updated as network topology modif
Bridges perform both in the data link layers and physical of LANs of same kind. They split a bigger network in to smaller segments. They have logic that accept them to store the
Problem a) Consider a 1000 Mbps Ethernet with a single Store-N-Forward switch mid-way in the path between two nodes A and B. Assume that there are no other nodes on the network
- Alice, Bob and Charlie have a secret key a=3, b=4, c=5, in that order. - They would like to find a common secret key using Diffie-Hellan key exchange protocol (with g=2, p=5).
W h a t do you understand by the terms security, network security and information security? How network security and information security are connected? Security can be def
Question 1 (a) Explain briefly the following terms as used in network security: (i) Denial of service (DoS) attack (ii) Birthday attack (iii) DeMilitarized Zone
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