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- Question
Error rate is
Options- A. an error-detecting code based on a summation operation performed on the bits to be checked.
- B. a check bit appended to an array of binary digits to make the sum of all the binary digits.
- C. a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the errors is detected.
- D. the ratio of the number of data units in error to the total number of data units
- E. None of the above
- Correct Answer
- the ratio of the number of data units in error to the total number of data units
- 1. A modem could be attached to which port?
Options- A. Parallel port
- B. ASYNC port
- C. Keyboard connector
- D. Video port
- E. None of the above Discuss
- 2. Which of the following digits are known as the terminal number of the Network User Address (NUA)?
Options- A. 5-7
- B. 1-4
- C. 8-12
- D. 13-14
- E. None of the above Discuss
- 3. Structured design methodology is an approach to design that adheres to rales based on principles such as
Options- A. top-down refinement
- B. bottom-up design
- C. data flow analysis
- D. All of the above
- E. None of the above Discuss
- 4. What could cause a fixed disk error?
Options- A. CDROM drive not installed
- B. Incorrect CMOS settings
- C. Incorrect RAM settings
- D. All of the above
- E. None of the above Discuss
- 5. Structured design produces computer programs that are
Options- A. easily
- B. maintained
- C. easily understood
- D. both (a) and (b)
- E. None of the above Discuss
- 6. The two classification of inputs are:
Options- A. energies and maintenance
- B. products and waste
- C. maintenance and waste
- D. maintenance and signal
- E. None of the above Discuss
- 7. Match the device driver HIMEM.SYS to its operation.
Options- A. Supports (ANSI) terminal emulation
- B. Manages the use of extended memory
- C. Uses expanded memory on a 80386 processor
- D. Supports code page switching
- E. None of the above Discuss
- 8. Which of the following would be a logical first step in troubleshooting a PC?
Options- A. Check the computer CMOS
- B. Define the circumstances of the problem
- C. Call the vendor
- D. Define what applications are being used
- E. None of the above Discuss
- 9. How is the integral mode implemented on a digital controller?
Options- A. the digital controller cannot handle integral mode
- B. the error is divided into discrete amounts
- C. the error signal is summed over a discrete time interval and accumulated by the controller
- D. All of the above
- E. None of the above Discuss
- 10. Which of the following statements is true?
Options- A. Two SCSI devices connected to a computer can have the same ID if they are both hard drives.
- B. Each SCSI device must have its own ID
- C. All SCSI devices must have the same ID
- D. SCSI ID's are irrelevant
- E. None of the above Discuss
More questions
Correct Answer: Parallel port
Correct Answer: 8-12
Correct Answer: data flow analysis
Correct Answer: Incorrect CMOS settings
Correct Answer: both (a) and (b)
Correct Answer: maintenance and signal
Correct Answer: Manages the use of extended memory
Correct Answer: Define the circumstances of the problem
Correct Answer: the error signal is summed over a discrete time interval and accumulated by the controller
Correct Answer: Each SCSI device must have its own ID
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