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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:
Global IP address: 202.123.21.120 /30
You are required to design a network which constitutes of a LAN having 3 subnets (with Internet connectivity) for each department in your company.
Each subnet is assumed to have each a maximum of 28 hosts including a file server and an internal web server.
Note: You must use an internal Class C addressing scheme.
Draw the network layout and giving maximum information about:
• IP, Subnet Mask & Gateway addresses of all devices and servers and 1 host from each subnet.
• Type and hierarchy of hardware devices, transmission media and network topology you might adopt, with justifications, where necessary.
(a) Describe DES encryption with a block diagram and brief steps. (b) How does triple DES improve security. What is the effective key length of triple DES? How can 3DES be compa
Ask question #MinimAn NMS is connected to a remote network by a 64 Kb/s link. The network elements in the remote network generate 50 faults/second. Of these, 5% are critical and th
Risk Management Discussion Points Organizations should define level of risk it can live with Risk appetite: it defines quantity and nature of risk which organizations are wil
(a) Describe the principal characteristics of associative memory networks? (b) Name the two basic types of associative memories and the differences between them. (c) Give an
Management of Classified Data Management of classified data comprises of its storage, distribution, portability, and destruction of classified data. All information which is not
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
explaain it?
In BUS topology every computer is directly connected to primary network cable in a single way. Bus networks are the easiest way to connect multiple users, but can have problems
Elements of Cryptosystems Cryptosystems is characteristically made up of algorithms, data handling techniques, and procedures which are combined in multiple ways to ensure confi
COLLISION: The receiver can get simultaneous requests, which gives in collision at receivers and both service lost and in this way no transmitter accepts reservations and both use
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