MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The following SQL is which type of join: SELECT CUSTOMER_T. CUSTOMER_ID, ORDER_T. CUSTOMER_ID, NAME, ORDER_ID FROM CUSTOMER_T,ORDER_T ? |
| A. | Equi-join |
| B. | Natural join |
| C. | Outer join |
| D. | Cartesian join |
| Answer» E. | |
| 2. |
Because it contains a description of its own structure, a database is considered to be ________ . |
| A. | described |
| B. | metadata compatible |
| C. | self-describing |
| D. | an application program |
| Answer» D. an application program | |
| 3. |
Which of the following is true about the characteristics of abstract data types? i)It exports a type. ii)It exports a set of operations |
| A. | True,False |
| B. | False, True |
| C. | True, True |
| D. | False, False |
| Answer» D. False, False | |
| 4. |
The main reason for connecting a pulse transformer at the output stage of a thyristor triggering circuit is to |
| A. | Amplify the power of the triggering pulse |
| B. | Provide electrical isolation |
| C. | Reduce the turn on time of the thyristor |
| D. | Avoid spurious triggering of the thyristor due to noise |
| Answer» C. Reduce the turn on time of the thyristor | |
| 5. |
A memory system has a total of 8 memory chips each with 12 address lines and 4 data lines. The total size of the memory system is: |
| A. | 6 kbyte |
| B. | 32 kbyte |
| C. | 48 k byte |
| D. | 64 kbyte |
| Answer» C. 48 k byte | |
| 6. |
The pressure coil of dynamometer type wattmeter is |
| A. | Highly inductive |
| B. | Highly resistive |
| C. | Purely resistive |
| D. | Purely inductive |
| Answer» C. Purely resistive | |