A Plus Hardware Certification Interview Preparation Guide
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This part of Interview Questions and Answers will demonstrate us about the Computer Hardware Certification of A+ We will discus here the latest techniques research and updates. You will learn the basics and advance of the A+ Certifications

14 A + (Plus) Hardware Questions and Answers:

1 :: What are the basic expansion card types?

The basic expansion card types in A+ Hardware certification are ISA and PCI, ISA these can be used only on XT, AT and ATX boards. The industry now considers ISA obsolete.
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2 :: How to clear Computer Motherboard CMOS password?

To clear Computer Motherboard CMOS password we will do these steps. Since CMOS is a special chip with its own battery, the best way to clear out a CMOS chip is to disconnect it from its power supply.
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3 :: Where does the Real mode on the CPU come from?

The original 8086, which only had 1 MB of memory. This megabyte is split into low memory for IRQ tables, application memory and high memory.
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4 :: Where does CPU Enhanced mode originate from?

Intel’s 80386 was the first 32-bit processor, and since the company had to backward-support the 8086. All the modern Intel-based processors run in the Enhanced mode, capable of switching between Real mode (just like the real 8086) and Protected mode, which is the current mode of operation.
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5 :: Name the processor lines of two major manufacturers?

High-end: Intel - Pentium (II, III, 4), AMD - Athlon.

Low-end: Intel - Celeron, AMD - Duron. 64-bit: Intel - Itanium 2, AMD - Opteron.
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6 :: What’s the difference between L1 and L2 cache?

Level 1 cache is internal to the chip, L2 is external.
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7 :: What’s the speed and device maximum specs for Firewire?

IEEE 1394 (Firewire) supports the maximum of 63 connected devices with speeds up to 400 Mbps.
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8 :: Where’s MBR located on the disk?

Main Boot Record is located in sector 0, track 0, head 0, cylinder 0 of the primary active partition.
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9 :: What’s the maximum hard drive size for FAT16-based Windows system?

Maximum hard drive size for FAT16-based Windows system is 2 GB.
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10 :: How many logical drives is it possible to fit onto a physical disk?

Maximum of 24 logical drives. The extended partition can only have 23 logical drives.
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