Computer Hardware – Section 7

46. IBM’s Micro Channel Architecture (MCA) specifies which type of the following bit access widths?

A. 8 bit & 16 bit
B. 16 bit & 24 bit
C. 16 bit & 32 bit
D. 32 bit & 64 bit
E. None of the above

Correct Answer: C. 16 bit & 32 bit

47. What is the best ground for a conductive work bench?

A. AC outlet
B. Ground to bend
C. To another device
D. Chassis ground
E. None of the above

Correct Answer: A. AC outlet

48. What could cause a fixed disk error?

A. CDROM drive not installed
B. Incorrect CMOS settings
C. Incorrect RAM settings
D. All of the above
E. None of the above

Correct Answer: B. Incorrect CMOS settings

49. A PC with a 486DX2 processor runs internally at 50Mhz. What speed would its external logic be running?

A. l0Mhz
B. 25Mhz
C. 50Mhz
D. 100 Mhz
E. None of the above

Correct Answer: B. 25Mhz

50. Match the device driver HIMEM.SYS to its operation.

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

Correct Answer: B. Manages the use of extended memory

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