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- Question
A smart modem can dial, hang up and answer incoming calls automatically. Can you tell who provides the appropriate instruction to the modem for this purpose?
Options- A. Communications software
- B. Error detecting protocols
- C. Link access procedure (LAP)
- D. Telecommunications
- E. None of the above
- Correct Answer
- Communications software
- 1. In SQL, which of the following is not a data Manipulation Language Commands?
Options- A. DELETE
- B. SELECT
- C. UPDATE
- D. CREATE
- E. None of the above Discuss
- 2. The synchronous modems are more costly than the asynchronous modems because
Options- A. they produce large volume of data
- B. they contain clock recovery circuits
- C. they transmit the data with stop and start bits.
- D. they operate with a larger bandwidth
- E. None of the above Discuss
- 3. Information should be accurate, timely, complete, and _____
Options- A. accuracy
- B. concise
- C. simulation
- D. decision
- E. None of the above Discuss
- 4. Report generators are used to
Options- A. store data input by a user
- B. retrieve information from files
- C. answer queries
- D. both (b) and (c)
- E. None of the above Discuss
- 5. Who is considered to be the "father" of artificial intelligence?
Options- A. Fisher Ada
- B. John McCarthy
- C. Allen Newell
- D. Alan Turning
- E. None of the above Discuss
- 6. Which of the following is not a device used in data communication?
Options- A. modem
- B. multiplexer
- C. statistical multiplexer
- D. front-end processor
- E. All of the above Discuss
- 7. The X.25 standard specifies a
Options- A. technique for start-stop data
- B. technique for dial access
- C. DTE/DCE interface
- D. data bit rate
- E. None of the above Discuss
- 8. Which transmission mode is used for data communication along telephone lines?
Options- A. Parallel
- B. Serial
- C. Synchronous
- D. Asynchronous
- E. None of the above Discuss
- 9. Data manipulation language (DML)
Options- A. describes how data are structured in the data base
- B. specifies for the DBMS what is required; the techniques used to process data
- C. determine how data must be structured to produce the user's view
- D. All of the above
- E. None of the above Discuss
- 10. A system investigation may result from
Options- A. an analysis investigation
- B. a scheduled systems reviewed
- C. a manager's formal request
- D. All of the above
- E. None of the above Discuss
More questions
Correct Answer: CREATE
Correct Answer: they contain clock recovery circuits
Correct Answer: concise
Correct Answer: both (b) and (c)
Correct Answer: John McCarthy
Correct Answer: All of the above
Correct Answer: DTE/DCE interface
Correct Answer: Serial
Correct Answer: specifies for the DBMS what is required; the techniques used to process data
Correct Answer: All of the above
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