CS-302 Quiz Preparation Virtual University With Answers

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CS-302 Quiz Preparation Virtual University

Sr. # Questions Answers Choice
1 In ________ outputs depend only on the combination of current state and inputs. Mealy machine Moore Machine State Reduction table State Assignment table
2 A positive edge-triggered flip-flop changes its state when ________________ Low-to-high transition of clock High-to-low transition of clock Enable input (EN) is set Preset input (PRE) is set
3 For a gated D-Latch if EN=1 and D=1 then Q(t+1) = _________ 0 1 Q(t) Invalid
4 The ABEL symbol for “OR” operation is ! & # $
5 The capability that allows the PLDs to be programmed after they have been installed on a circuit board is called __________ Radiation-Erase programming method (REPM) In-System Programming (ISP) In-chip Programming (ICP) Electronically-Erase programming method (EEPM)
6 Consider A=1,B=0,C=1. A, B and C represent the input of three bit NAND gate the output of the NAND gate will be _____ Zero One Undefined No output as input is invalid
7 NAND gate is formed by connecting _________ AND Gate and then NOT Gate NOT Gate and then AND Gate AND Gate and then OR Gate OR Gate and then AND Gate
8
The output of an XNOR gate is 1 when ____________ . I) All the inputs are zero II) Any of the inputs is zero III) Any of the inputs is one IV) All the inputs are one.
 I Only IV Only I and IV only II and III only
9 The _________ of a ROM is the time it takes for the data to appear at the Data Output of the ROM chip after an address is applied at the address input lines. Write Time Recycle Time Refresh Time Access Time
10 Which is not characteristic of a shift register? Serial in/parallel in Serial in/parallel out Parallel in/serial out Parallel in/parallel out
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