1⟩ Troubleshooting questions in hardware?
pls , send sir
A + (Plus) Hardware
Home Computer Hardware A + (Plus) Hardware
“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”
53 A + (Plus) Hardware Questions And Answers
2⟩ WHat are * and ? when using them for wildcards in Windows?
* - any characters, arbitrary among, ? - single character.
3⟩ How does the browser know to go to a certain IP address when you enter a domain like google.com?
When we enter a URL such as google.com then It searches through local DNS cache, if nothing is there, it queries the ISP’s DNS server to resolve the URL.
4⟩ 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.
5⟩ What’s the maximum hard drive size for FAT16-based Windows system?
Maximum hard drive size for FAT16-based Windows system is 2 GB.
6⟩ 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.
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.
8⟩ What’s the difference between L1 and L2 cache?
Level 1 cache is internal to the chip, L2 is external.
9⟩ 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.
10⟩ 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.
11⟩ 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.
12⟩ 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.
13⟩ 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.
14⟩ How can you totally protect a PC from damage during an electrical storm? A. Disconnect the AC power cable B. Disconnect all external cables and power cords C. Use a surge protector D. Turn off the AC power E. None of the above
Option A
Disconnect the AC power cable
15⟩ ESD damage can be caused by A. Placing an IC in a non-conductive plastic bag B. Placing an IC on a grounded mat C. Repeated sags in current supplied from outlets D. Touching metal on the chassis E. None of the above
Option A
Placing an IC in a non-conductive plastic bag
16⟩ Which is LEAST likely to interfere with upgrading to a newer DOS Version? A. ROM BIOS B. Video controller C. Compressed drives D. Existing backup files E. None of the above
Option B
Video controller
17⟩ Resistance is measured A. in parallel B. in series C. after breaking the circuit D. after checking voltage E. after checking current
Option C
after breaking the circuit
18⟩ Which is the most difficult environmentally to dispose of? A. floppy drives B. hard drives C. power supplies D. CRTs E. system boards
Option D
CRTs
19⟩ During boot-up, the memory test A. Is a superfluous step that should be ignored B. Checks and verifies that contiguous memory is installed C. Is an operational error D. Displays what memory is installed, but nothing else E. None of the above
Option A
Is a superfluous step that should be ignored
20⟩ A customer has just installed a new cd-rw. the system was working fine before the installation, but now the cdrom does not work, what should you suggest that the customer do? A. flash or upgrade the BIOS B. check the CONFIG.SYS C. add cdrw in the device manager D. check the jumper setting on the cd-rw E. None of the above
Option D
check the jumper setting on the cd-rw
