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Problem 1:
a) One of the limitations of file processing systems is data inconsistency. Briefly explain with the help of an example what do you understand by this phrase.
b) Explain the use of the data dictionary in databases.
c) Write short notes on System software.
Problem 2:
Describe the five-layer network using block diagrams.
Problem 3:
1. Describe local area network (LAN) and wide area network (WAN) using appropriate examples.
2. What is an Ethernet? Explain the principle behind Ethernet.
In Star topology all computers are connected using a central device known as hub. Star networks are one of the most general computer network topologies. In its simplest way, a
Problem (a) Using Vigenère cipher and given the key abc, find the ciphertext for the message: simplicity Only the 26 lower-case alphabetical characters are used in messa
POLICY MANAGEMENT Policies should be managed as they constantly change. Good policy development and maintenance make a more resilient organization. All policies undergo tremendou
Assume that the RSA problem is hard, prove that the RSA encryption is secure against IND- CPA. Provide a game between an adversary A and a simulator (or challenger) B.
Thinking ethically is difficult without a background in moral philosophy. Asking people to embrace ethics without offering practical explanation of the efficacy of so doing, is a t
There is another probing methods i-e Trace Route. To get more detail it is used As given in the figure about the route to DANDELION-PATCH.MIT.EDU was looked out a
Innovative nature of triple key management The triple key management scheme provides secure services by combining different techniques whic contribute to the security and priv
(a) Using the extended Euclidean algorithm, find the multiplicative inverse of 504 mod 67. (b) Decrypt the following ciphertext, which has been encrypted using Caesar cipher:
Host-Based IDS A host-based IDS (HIDS) resides on a particular computer or server and monitors activity only on that system. HIDS also called as system integrity verifiers as th
STAR TOPOLOGY In this topology, all devices are attached to a central point, which is sometimes known as the "Hub" as given in the diagram below. Figure: An ideal
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