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Explain the term - Integrity
In most cases, corporate data should remain unchanged by third parties, so the system should be capable of ensuring that only authorised personnel can effect changes. Integrity also concerns the subject of non-repudiation-once an order is received, for instance, the customer should not be able to claim later that it did not come from him. Digital signatures allow us to verify the originator, as well as ensuring that data has not been tampered within transit.
Distinguish between combinational logic circuits and sequential logic circuits. Ans: Combinational logic circuits:- (i) Outputs only depend upon present state of the i
Q. Graphic symbol of S-R flip-flop? R-S Flip flop - Graphic symbol of S-R flip-flop is displayed in Fig below. It has 3 inputs S (set), R (reset) and C (for clock). Q(t+1) is
Computer to computer communication is: (A) Simplex (B) Duplex (C) Half Duplex (D) Both Duplex and Half D
Which of following requires refreshing SRAM., DRAM., ROM. or EPROM. ? Ans. DRAM. requires refreshing.
Explain Macro definition and call. Macro: The assembly language programming frequently finds this necessary to repeat certain piece of code several times during the course of
Explain the Modularity of Object oriented analysis Modularity is closely attached to encapsulation; you may think of it as a way of mapping encapsulated abstractions into phys
? Object: The interaction among objects takes place in a system. An object is depicted by a rectangle with the name of the object, preceded by a colon and underline. ? Relation
What is Random access memory (RAM) This is a volatile memory (i.e. contents are lost when computer is switched off). A user can write or delete data and read the contents. Befo
A managed bean - sometimes simply referred to as an MBean - is a type of JavaBean, developed with dependency injection. Managed Beans are particularly used in the Java Management E
What is meant by concurrent execution of database transactions in a multi user system
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