CD-ROM Drive Interview Questions And Answers

Following eight commands to repair Window XP by console command.

C: CD ..
C: ATTRIB -H C:root.ini
C:ATTRIB -S C:root.ini
C:ATRIB -R C:root.ini
C: del boot.ini
C: BOOTCFG /Rebuild
C: CHKDSK /R /F
C: FIXBOOT

Hyper text transfer protocol.

Core2 duo is better processor because it has L2-cahe which is inside the cpu & can handle multiple programs without slowing down the system & in dual core L1-cache is attached with the cpu which is not inside the cpu & has slower than core2duo.

Motherboard is known as motherboard because in the world all borned creature is directly attached to her mother & after it all the relations creats due to her mother so in the same manner all the i/o devices (hardware devices) directly attached to the motherboard & all devices know the motherboard first of all in our Computer system & after it any hardware device can communicate to other hardware device.

A physical drive is drive tha you can physically see in the computer system itself. That is the gadget itself. Logic drive is inside the physical drive and this is the portion of the drive that stores data the user is using. To configure it you must update it on the BIOS.

First we must go to bios and should check boot sequence,local hdd status
Or we should check RAM.& check h.d.d cable. cheack cd writer for cd or dvd

CPU is the unit in the computer system where the actual processing of the data takes place and also it controls the flow of the data.

keyboard connect ps/2 port,
paraller port printer connect
new port usb

DHCP: Dynamic Host Control Protocol.

It is used to bound MAC Addresses of system. Specially for Wireless System.

BIOS - Basic Input Output System,
Power On Self Test (POST) and Loading Bootloader from the Hard disk drive Boot Sector is being done by BIOS.
It initiates the system for operation

1. What type of a media is the CD-ROM classified as?
2. State the differences between magnetic and optical media?
3. What do you understand by the term CD mastering?
4. What material are CD`s made of?
5. What are the advantages of a CD?
6. Explain the various layers of a CD?
7. How is data stored on CD`s?
8. What kind of data can be stored on a CD?
9. How does the CD-ROM drive work?
10. How is a cd-rom drive connected to a computer?

11. What are the components of a CD-ROM drive?
12. What is the purpose of a 3 phase motor?
13. How does the tracking system work?
14. What is the purpose of buffers in CD-ROM drives?
15. What is the purpose of the emergency hole in a cd-rom drive?
16. How CD-ROM different from Blue ray disks?
17. How are cd-rom speeds measured?
18. What does speed 48x signify in reference to a CD-ROM?
19. What are the various formats of a CD?
20. What is the rainbow book?

21. What is the white book in reference to CD-ROM drive?
22. What is DDCD, how is it different from a DDCD?
23. What is the CD-ROM exclusive access mode?
24. What is CIRC?
25. How many bytes does a CD-ROM sector contain?
26. What kind of laser is used in a CD-ROM drive?
27. What is the average data transfer speeds of CD-ROM drives?
28. Explain the CD-ROM drive optical head assembly?
29. What is CD-shattering?
30. What is a CD burner?

31. How much data can a CD hold?
32. Why CD-RW is used instead of CD-R?
33. What are the contents that are contained by CD sector?
34. Explain how does the head actuator mechanism works?
35. What is CLV?
36. What is CAV?
37. Explain zoned bit recording?
38. Explain the working of the loading mechanism of CD-ROM drives?
39. What is the logic board in CD-ROM drive?
40. What are the various ports available on the back panel of a CD-ROM drive?

41. What are the differences between single session and multi session discs?
42. What are bridge CD`s?
43. What is SIA in reference to CD-ROM drives?
44. What are multi beam CD-ROM drives?
45. What is the EIDE interface? Explain?
46. What is UDF?
47. What are CD bumps?
48. What is the purpose of the DAC in a CD-ROM drive?
49. What are CD encoding problems?
50. What is sub-code data in reference to CD-ROM?

Short for Integrated Drive Electronics or IBM Disc Electronics, IDE is more commonly known as ATA or Parallel ATA (PATA). It is a standard interface for IBM compatible hard drives and CD or DVD drives. IDE is different than SCSI and Enhanced Small Device Interface (ESDI) because its controllers are on each drive, meaning the drive can connect directly to the motherboard or controller. IDE and its updated successor, Enhanced IDE (EIDE), are common drive interfaces found in IBM compatible computers. Below is a picture of the IDE connector on the back of a hard drive, a picture of what an IDE cable looks like, and the IDE channels it connects to on the motherboard.

Alternatively referred to as IDLE, IDE is short for Integrated Development Environment, and are visual tools that allow programmers to develop programs more efficiently. Commonly, an IDE may have a compiler, debugger, text editor, and other integrated tools. Smalltalk was the first programming language to have a first true IDE.

Less commonly referred to as the Centronics interface or Centronics connector after the company that originally designed it, the port was later developed by Epson. The parallel port is found on the back of IBM compatible computers and is a 25-pin (type DB-25) computer interface commonly used to connect printers to the computer. Below is an example of the DB25 interface found on the back of the computer.

Graphic of a parallel port you can notice the DB25 parallel port connection is easy to identify and is often the biggest connection on the back of the computer. The connection is in the shape of the letter D, is a female connector, and has 25 holes.

The computer is capable of having the parallel port run at different modes depending on your needs and available resources. Some of these modes include: IEEE-1284 (Auto), Centronics mode, Nibble mode, Unidirectional (SPP), Bi-directional, EPP, and ECP.

Pin1 - Data acknowledgement when the signal is low.
Pin 2 - 9 - Data transfer pins.
Pin 10 - Acknowledge that the data has finished processing and when the signal is high indicates ready for more.
Pin 11 - When the signal goes high indicate that the printer has accepted the data and is processing it. Once this signal goes low and Pin 10 goes high will accept additional data.
Pin 12 - Printer paper jam when signal is high or no signal if printer jam.
Pin 13 - When high signal printer is indicating that it is on-line and ready to print.
Pin 14 - When low signal PC has indicated that the printer inset a line feed after each line.
Pin 15 - Printer sends data to the computer telling it that an error has occurred.
Pin 16 - When low signal PC has requested that the printer initiate an internal reset.
Pin 17 - When low signal the PC has selected the printer and should in return prepare for data being sent.
Pin 18 - 25 - Ground.

Today, the pPHowever, below is a listing of various hardware components that can be purchased and used with the parallel port.

Printer:
The most common use for the parallel port.

Scanner:
Another commonly used parallel device is a parallel port scanner. Parallel port scanners are a popular alternative to SCSI scanners because of how easy they are to install.

External Drives:
Another popular use of the parallel ports are external drives such as the Iomega Zip Drive, which can be removed from one computer and placed onto another.

The term PC Card is being used as a replacement to PCMCIA Card because of the ongoing changes in the technology and because it is much easier to remember. However, PC Card should not be confused with a PCI Card. This technology is becoming replaced by the new ExpressCard standard.

Short for Personal Computer Memory Card International Association, PCMCIA is a trade association founded in 1989 that is responsible for the ongoing development of the PCMCIA standard. PCMCIA cards are hardware interfaces that are slightly bigger than a standard credit card that enable additional functionality for laptop computers and other portable devices.

eSATA does have some disadvantages such as not distributing power through the cable like USB, which means drives require an external power source. The eSATA cable also supports a maximum length of up to 2m. Because of these disadvantages don't plan on eSATA becoming the only external solution for computers.