Database problems
- 1. 88%of 370 +24% of 210-x =118 find x Also asked in: Bank PO, Bank Clerk
Correct Answer: From the given equation, 88x370/100 + 24x210/100 - 118 = x => x = 3256 + 504 - 118 x = 258
- 2. A proxy server is used for which of the following?
Options- A. To provide security against unauthorized users
- B. To process client requests for Web pages
- C. To process client requests for database access
- D. To provide TCP/IP Discuss
Correct Answer: To provide security against unauthorized users
- 3. The benefits of object-oriented modeling are which of the following?
Options- A. The ability to tackle more challenging problems
- B. Reusability of analysis, design, and programming results
- C. Improved communication between users, analysts, etc.
- D. All of the above. Discuss
Correct Answer: All of the above.
- 4. A collection of interrelated records is called a
Options- A. Datasheet
- B. Spreadsheet
- C. Database
- D. Utility File Also asked in: AIEEE, Bank Exams, Analyst, Bank PO, Database Administrator, IT Trainer, Network Engineer, Project Manager, Software Architect
Correct Answer: Database
- 5. When mapping a supertype/subtype relationship which of the following is true?
Options- A. The supertype primary key is assigned to each subtype.
- B. The subtype primary key is assigned to each supertype.
- C. There is no link between the supertype/subtype entities.
- D. There is no primary key/foreign key relationship between a supertype/subtype. Discuss
Correct Answer: The supertype primary key is assigned to each subtype.
- 6. With this type of SQL Server cursor concurrency no lock is obtained until the user updates the data.
Options- A. READ_ONLY
- B. SCROLL_LOCK
- C. OPTIMISTIC
- D. PESSIMISTIC Discuss
Correct Answer: OPTIMISTIC
- 7. For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?
Options- A. Two
- B. Three
- C. Four
- D. Six Discuss
Correct Answer: Six
- 8. A shared database should:
Options- A. be accurate and available.
- B. provide for backup and recovery.
- C. be secure.
- D. All of the above. Discuss
Correct Answer: All of the above.
- 9. A transitive dependency is which of the following?
Options- A. A functional dependency between two or more key attributes.
- B. A functional dependency between two or more nonkey attributes.
- C. A relation that is in first normal form.
- D. A relation that is in second normal form. Discuss
Correct Answer: A functional dependency between two or more nonkey attributes.
- 10. It is necessary to sort a file before searching a particular item
Options- A. True
- B. False
- C. May or may not be true
- D. None of the above Also asked in: Database Administrator
Correct Answer: May or may not be true
Explanation:
If less work is involved in searching a element than to sort and then extract, then we don?t go for sort
If frequent use of the file is required for the purpose of retrieving specific element, it is more efficient to sort the file.
Thus it depends on situation
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