McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) , Information Technology Engineering (IT) , Electrical Engineering , Civil Engineering , Mechanical Engineering .
Chapters
| 1. |
What will be the output of the following Python expression? int(1011)? |
| A. | 1011 |
| B. | 11 |
| C. | 13 |
| D. | 1101 |
| Answer» A. 1011 | |
| Explanation: the result of the expression shown will be 1011. this is because we have not specified the base in this expression. | |
| 2. |
Which of the following expressions results in an error? |
| A. | int(1011) |
| B. | int(‘1011’,23) |
| C. | int(1011,2) |
| D. | int(‘1011’) |
| Answer» C. int(1011,2) | |
| Explanation: the expression int(1011,2) results in an error. had we written this expression as int(‘1011’,2), then there would not be an error. | |
| 3. |
Which of the following represents the bitwise XOR operator? |
| A. | & |
| B. | ^ |
| D. | ! |
| Answer» B. ^ | |
| Explanation: the ^ operator represent bitwise xor operation. &: bitwise and, | |
| 4. |
What is the value of the following Python expression? bin(0x8) |
| A. | ‘0bx1000’ |
| B. | 8 |
| C. | 1000 |
| D. | ‘0b1000’ |
| Answer» D. ‘0b1000’ | |
| Explanation: the prefix 0x specifies that the value is hexadecimal in nature. when we convert this hexadecimal value to binary form, we get the result as: ‘0b1000’. | |
| 5. |
What will be the output of the following Python expression? 0x35 | 0x75 |
| A. | 115 |
| B. | 116 |
| C. | 117 |
| D. | 118 |
| Answer» C. 117 | |
| Explanation: the binary value of 0x35 is 110101 and that of 0x75 is 1110101. on or- ing these two values we get the output as: 1110101, which is equal to 117. hence the result of the above expression is 117. | |
| 6. |
It is not possible for the two’s complement value to be equal to the original value in any case. |
| A. | true |
| B. | false |
| Answer» B. false | |
| Explanation: in most cases the value of two’s | |
| 7. |
Bitwise gives 1 if either of the bits is 1 and 0 when both of the bits are 1. |
| A. | or |
| B. | and |
| C. | xor |
| D. | not |
| Answer» C. xor | |
| Explanation: bitwise xor gives 1 if either of the bits is 1 and 0 when both of the bits are 1. | |
| 8. |
What will be the output of the following
|
| A. | 2 |
| B. | 4 |
| C. | 8 |
| D. | 12 |
| Answer» C. 8 | |
| Explanation: ^ is the xor operator. the binary form of 4 is 0100 and that of 12 is 1100. therefore, 0100^1100 is 1000, which is equal to 8. | |
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