Quiz 10101

(133) in decimal equals_____in a number system having radix "11".

• 111

• 101

• 110

• 121

• 211

The binary number (10101101) has

• no parity

• even parity

• is surely in 2's complement form

• is surely in 1's complement form

• none

Ambika is wondering if a system can show the following behavior.

Whenever a clock signal arrives, the count is increased by "2" on the positive edge and it decreases by "1" on the negative edge. Which components do you think can she use to develop the system?

• one up-down counter with appropriate combinational circuit to ensure proper triggerings

• one up with appropriate combinational circuit to ensure proper triggerings

• one down counter with appropriate combinational circuit to ensure proper triggerings

• one up-down counter with a NOT latch

• the circuit cannot be designed

Ananya is wondering if a system can show the following behavior.

Whenever a clock signal arrives, the count is increased by "2" on the positive edge and it decreases by "2" on the negative edge. If the system operates infinitely what would you call the operation of such a system?

• up-counting

• down-counting

• up-down counting

• not counting at all

Vrinda is wondering if a system can show the following behavior.

Whenever a clock signal arrives, the count is increased by "2" on the positive edge and it decreases by "1" on the negative edge. If the system operates for 5 clock cycles, then the final state of the system is

(assume that clock pulse count starts with one)

• 3

• 4

• 6

• 5

• 7

A combinational circuit meets a sequential circuit and is now suffering from ______ disorder!

• state-deficiency

• feedback-absence

• none of the two

• both of them

Concatenation of flip-flops can help in frequency division. This is because of which of the following phenomena.

• shifting characteristic of a flip-flop with clock inputs

• counting characteristic of a counter

• feedback

• synchronous operation of counters

Priority encoder is a

• combinational circuit with feedback

• combinational circuit without feedback

• combinational circuit with latches

• none

Assume that a code contains all the instructions of 1 bytes. In the execution of this code, the program counter was decremented erroneously after the decoding of an every instruction. Then

• only one instruction will be executed repeatedly

• no instruction will be executed

• the two instructions will be executed repeatedly

• atleast two instructions will be executed repeatedly

• atmost two instructions will be executed repeatedly

In which of the following DMA modes the CPU blockage rate is maximum?

• cycle-stealing

• burst mode

• interleaved mode

• none