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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.
Belady's Anomaly Also known FIFO anomaly. Generally, on raising the number of frames given to a process' virtual storage, the program execution is faster, because lesser page
INTRODUCTION TO PHYSICAL SECURITY The Physical security addresses design, execution, and maintenance of countermeasures which protect physical resources of an organization. The
Repeater known as regenerator ; it is an electronic machine that performs only at physical layer. It gets the signal in the network before it becomes loss or weak, recreates the
how to encryt the data in plaintext cipher
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
Task 1 a. Consider the table showing the relative frequencies of letters in English. Arrange the frequencies from largest to smallest, and make a cumulative plot, using Exc
COMPONENTS OF AN INFORMATION SYSTEM The components of an information system are software, data, hardware, people, procedures and Networks. These 6 components are critical to ena
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
PACKET SNIFFERS A packet network protocol analyzer is a network tool which collects copies of packets from network and analyzes them. It can give network administrator with valu
Question 1 The speech act theory is used as the model for communication among computational agents. Locution, illocution, and perlocution are the 3 aspects of this theory Using
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