_____ is the fastest logic family; it's used in high-speed applications.

An electronic logic gate whose output is logic 0 only when all inputs are logic 1 is

A

NOR

B

NAND

C

OR

D

NOT

E

None of the above

সাথী সাদৃশ্যানুমানমূলক আরোহ সম্পর্কে ধারণা লাভের জন্য কিছু গ্রন্থের সহায়তা নেয়। এক্ষেত্রে যে গ্রন্থসমূহ সমর্থনযোগ্য- i. A System of Logic ii. A Manual of Logic iii. Introduction to Logic নিচের কোনটি সঠিক?

A

i ও ii

B

i ও iii

C

ii ও iii

D

i ii ও iii

The average age of a family of 6 members is 25 years. After a 45- yers old member leves the family, what is the average age ( in years) of the family?

A

22

B

21

C

20

D

19

In a family the father took 14 of the cake and had 3 times as much as each of the other members had. The total family member is- number of family member is-

A

3

B

7

C

10

D

12

একটি XOR লজিক গেট নিম্নলিখিত কোন লজিক গেট/ গেটগুলোর সমবায়ে গঠিত হতে পারে? (An XOR logic gate can be constructed from the combination of which of the following logic gate/gates?)

A

OR gate

B

AND gate, OR gate, and NOT gate

C

AND gate and NOT gate

D

OR gate and NOT gate

Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?

A

OR gates only

B

AND gates and NOT gates

C

AND gates, OR gates, and NOT gates

D

OR gates and NOT gates

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

A

(5, 19, 9)

B

(7, 29, 13)

C

(15, 59, 29)

D

(12, 47, 23)

Positive logic in a logic circuit is one in which

A

logic 0 and 1 are represented by 0 and positive voltage respectively

B

logic 0 and, -1 are represented by negative and positive voltages respectively

C

logic 0 voltage level is higher than logic 1 voltage level

D

logic 0 voltage level is lower than logic 1 voltage level.

Which function positive logic is equivalent to OR function in negative logic?

A

NOT

B

AND

C

OR

D

NOR

E

None of the above

Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____.

A

3, 3, 1, 7

B

3, 2, 1, none

C

3, 2, 1, 7

D

3, 3, 2, none

E

All of the above

_____ is the fastest logic family; it's used in high-speed applications.

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