MCQOPTIONS
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MCQOPTIONS
This section includes 155 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Which of the following is a database administrator's function? |
| A. | database design |
| B. | backing up the database |
| C. | performance monitoring |
| D. | user coordination |
| Answer» E. | |
| 152. |
In SQL, the command(s) is(are) used to create an index for a table or cluster |
| A. | CREATE INDEX |
| B. | MODIFY INDEX |
| C. | SET INDEX TO FILE |
| D. | All of the above |
| Answer» B. MODIFY INDEX | |
| 153. |
After you _____ a record, many data management the environments require you to issue a command to save the changes you made. |
| A. | Delete |
| B. | Update |
| C. | Sort key |
| D. | Index |
| Answer» C. Sort key | |
| 154. |
In a _____ a parent record type can be linked to one or more "child" record types, but a child record type can have only one parent. |
| A. | Network database |
| B. | Relational database |
| C. | Distributed database |
| D. | Hierarchical database |
| Answer» E. | |
| 155. |
Which of the following is not a logical data-base structure? |
| A. | tree |
| B. | relational |
| C. | network |
| D. | chain |
| Answer» E. | |