CS302 Quiz No.4 Shared by Haris

Question # 1 of 10 ( Start time: 09:29:25 PM ) Total Marks: 1
A stage in the shift register consists of
Select correct option:
a latch
a flip flop a byte of storage
four bits of storage


Question # 2 of 10 ( Start time: 09:30:51 PM ) Total Marks: 1
When an eight bit serial in/serial out shift register is used for a 24 micro seconds time delay, the clock frequenct must be
Select correct option:
41.67 KHz
333 KHz not confirm
125 KHz
8 MHz


Question # 3 of 10 ( Start time: 09:33:12 PM ) Total Marks: 1
Asynchronous mean that_____________
Select correct option:
Each flip-flop after the first one is enabled by the output of the preceding flip-flop
Each flip-flop is enabled by the output of the preceding flip-flop
Each flip-flop except the last one is enabled by the output of the preceding flip-flop
Each alternative flip-flop after the first one is enabled by the output of t


Question # 4 of 10 ( Start time: 09:35:07 PM ) Total Marks: 1
Divide-by-160 counter is acheived by using
Select correct option:
Flip-Flop and DIV 10
Flip-Flop and DIV 16
DIV 16 and DIV 32
DIV 16 and DIV 10


Question # 5 of 10 ( Start time: 09:36:08 PM ) Total Marks: 1
A 4- bit UP/DOWN counter is in DOWN mode and in the 1010 state. on the next clock pulse, to what state does the counter go?
Select correct option:
1001
1011
0011
1100


Question # 6 of 10 ( Start time: 09:36:46 PM ) Total Marks: 1
In moore machine the output depends on
Select correct option:
the current state and the output of previous flip flop
only inputs
the current state
the current state and inputs


Question # 7 of 10 ( Start time: 09:37:50 PM ) Total Marks: 1
A divide-by-10 Johnson counter requires
Select correct option:
ten flip-flops
four flip-flops
five flip-flops
twelve flip-flops


Question # 8 of 10 ( Start time: 09:38:56 PM ) Total Marks: 1
Three cascaded modulus-10 counters have an overall modulus of
Select correct option:
30
100
1000
10000


Question # 9 of 10 ( Start time: 09:39:24 PM ) Total Marks: 1
A divide-by-10 ring counter requires a minimum of
Select correct option:
ten flip-flops
five flip-flops
four flip-flops
twelve flip-flops


Question # 10 of 10 ( Start time: 09:39:59 PM ) Total Marks: 1
Number of states in an 8-bit Johnson counter sequence are:
Select correct option:
8
12
14
16