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(a) Explain the two possible configuration for 3DES.
(b) What is the main disadvantage of 3DES?
(c) Why are most modern symmetric algorithm block ciphers?
(d) Describe four weaknesses of symmetric cryptography.
(e) Consider that Alice have to send bulk data to a remote user Bob.
Explain how Alice would use both asymmetric and symmetric cryptography to achieve both security and efficiency in terms of encryption time.
What are Transmission Impairments? Explain the following concepts with respect to Transmission Impairments a) Attenuation b) Delay Distortion c) Noise ion #Minimum 100 words ac
ADDRESS RESOLUTION WITH CLOSED-FORM COMPUTATION For networks use reliable addressing, it is possible to select an address that creates closed-form address resolution possible.
Question: (a) What is the main security vulnerability of IPv4? (b) Which protocol can be used for secure remote login? (c) Distinguish between the transport and tunnel
Consider the following case study: In order to avoid criticisms of their existing manned road-toll payment system on its private road, WS-Pass has decided to adopt an automated
In 10 or more pages, address the following topics (be sure to use diagrams as well as references). 1) Define broadband and baseband transmission technology. 2) Describe broadban
Question (a) Draw a typical hybrid star-ring topology paying attention to how the clients and switching hubs are connected. (b) State 3 main differences between a router
IP DATAGRAM SIZE: Datagrams may have different sizes i.e. Header area is generally fixed (20 octets) but can have various options. Data area may contain between 1 octet and 6
MAC Address The address for a machine as it is identified at the Media Access Control (MAC) layer in the network structure. MAC address is generally stored in ROM on the n
Question: a) There are two basic approaches to dealing with errors in the presence of pipelining. One way is Go-Back-N and the other strategy is Selective Repeat. i. Explain
IPV6 DATAGRAM FORMAT It is given in the figure below:
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