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Access ControlsAccess controls addresses admission of a user into a trusted area of organization. It comprises of a combination of policies & technologies. The ways to control access are as follows•Mandatory access controls (MAC) – give offers limited control over access to information resources. Lattice based access control: variation of MAC; user’s assigned matrix of authorizations for the areas of access.•Nondiscretionary controls - managed by a central authority in organization; is based on individual’s role or a specified set of assigned tasks. •Discretionary access controls (DAC) - implemented at discretion/option of data user.
UDP INTERACTION UDP follows four kinds of interaction 1-to-1: One application can interact with one application. 1-to-many: One application can interact with many
Stateless Packet Filtering Stateless or static packet filtering is the most straightforward kind of packet filtering that allows or disallows data transfer based on the addres
The method used to check errors is checksum . In this method data is treated as a sequence of integers and their arithmetic sum is calculated and the carry bits are added to the
Cipher Methods There are 2 methods of encrypting plaintext: • Bit stream method – every bit in the plaintext bit is transformed into a cipher bit one bit at a time. • Block cip
Question: a) You are using Active Directory Users under Windows Server 2003 and Computers to configure user objects in your domain, and you are able to change the address and
Problem (a) Describe RSA algorithm with an example. (b) Answer the following RSA encryption, given the values of the primes are: p = 17, q = 11 and choosing e = 7. (c)
IP DATAGRAM HEADER FORMAT: It is given in the figure below: In the table: VERS denotes the version of IP. H.LEN denotes the header length in units of
Question: Human telephone conversations are characterized by irregular pauses, alternating with irregular bursts of speech. In contrast, communication via computers is char
Question 1 a) Provide three advantages of using optical fiber. b) Distinguish between "Direct Sequence Modulation" and "Frequency Hopping" c) Decribe the purpose of using "
ADDRESS RESOLUTION WITH TABLE LOOKUP : Resolution needs data structure that has information about address binding. A distinct address-binding table is used for every physical n
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