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Describe about the role of bitmap indexes to solve aggregation problems?
Ans) Bitmaps are very useful in begin schema to join large databases to small databases. Answer queries and bit arrays are used to do logical operations on the databases. Bit map indexes are very well-organized in handling Gender differentiation; also repetitive tasks are performed with much larger efficiency.
Minimize the logic function F(A, B, C, D) = ∑ m(1,3,5,8,9,11,15) + d(2,13) using NOR gates with help of K-map. Ans. Realization of given expression by using NOR gates: In POS
Explain the concept of variable-partition contiguous storage allocation. Suppose that we have 1024K main memory available in that 128K is occupied through operating system pro
Dynamic screen sequence for a screen can be set using which commands? It uses two commands:- A) Set Screen B) Call screen.
What does the c$ command do from command mode using Vi Editor? Ans) C$ will start from the character under the curser till the finish of line. So when you use this command it wi
Explain Busy tone in strowger telephony. Busy tone pattern is demonstrated in figure. This is a bursty 400 Hz signal with silence era in between. The burst and silence durati
Which two properties are on every validation control? Two properties are:- a) Control to validate b) Error Message.
Define macros. A macro is a pre-processor directive which is a program that processes the source code before it passes by the compiler. These are placed in the source program
Explain about Flip-Flops Flip-Flops are also called bistable multivibrator. A flip-flop is capable of storing 1 bit of binary data. It has two stable states- 'one' and 'zero
What are the steps to design algorithm? Formulate algorithm for each operation. Analysis specification tells what the operation does. The algorithm shows how it is done. The st
What are the categories of Radio communication 1. Sky wave or ionosphere communication 2. Line-of-sight (LOS) microwave communication limited by horizon 3. Troposphere
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