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Multiplexer :-                         It is known as MUX..                         Multiplexing is the process of connecting many inputs to one output it is "many into one " process with appropriate logic control signals.                         Multiplexer is a basic block or basic logic combinational circuit with i) 'n' input lines ii) 'm' control lines / selector lines iii) one output line 'Y'     It requires OR gate in the O/P.       It cannot be used as a decoder.    Example :- IC 74153,74157  To calculate Select line  -  Formula :-      ...

1.In relational database row and column is called as ____and ____respectively. (A)Tuple; Attribute (B)Attribute; Tuple (C)Tupple;Domain (D)Attribute; Domain (E)None of these Answer :- (A)Tuple; Attribute 2.Arrange the following in increasing order of their size.  (A) Database<File<Record<Field<Byte<Bit  (B) Bit<Byte<Field<Record<File<Database  (C) Bit>Byte>Record>Field>File>Database  (D) Bit>Byte>File>Record>Field>Database Answer :-   (B) Bit<Byte<Field<Record<File<Database 3. Round robin scheduling is essentially the preemptive version of (A) FIFO (B)Shortest job first (C) Shortest remaining (D)Longest time first (E) None of these Answer :- (A) FIFO 4. Which of the following identifies specific web page and its computer on the web page? (A) Web site (B) URL (C) Web site address (D) Domain Name (E) None of these Answer :- (B) URL...