Wednesday, May 10, 2006
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Comptia A+ at examguides.com
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Sunday, May 07, 2006
Installation, configuration, and upgrading
I. The exam objectives include identifying the names, purpose, and characteristics of systems, and modules. Example of concepts and modules are:
- Firmware and hardware
- PC power supplies
- Processors including mmx, pII, pIII, Xeon, and other latest processors
- Memory, including SDRAMs, DRAMs, Cache memory
- Storage devices, including Hard disks (both internal and external), Floppy disks, and Flash dirve
- Display devices, including VGA, SVGA monitors, and Flat panel displays
- Adapter cards, including NICs, PCI, and others
- Riser cards
storage devices like hard disk, floppy disk, CD read/write, Tape drives, and others
Power supplies including AT and ATX
Cooling Systems for Fans, Heat sinks, and Liquid cooling
Input devices including keyboard, mouse, pointer deviices, and touch screen.
Adapters, including network cards, sound cards, video cards, modem, scsi devices, IEEE 1384 FireWire, USB and others.
III. Identify typical IRQs, DMAs, and I/O address. Acquire skills to change these settings according to a given requirement. The devices may include the following:
- ISA devices (legacy)
- Special devices like CAK/CAM
- Internal modems
- Floppy drive controllers
- Hard drive controllers
- Multimedia devices
- NIC cards
- IO ports including serial, parallel, USB ports, IEEE 1394 Firewire, Infrared
IV. Identifying the names, purposes, and characteristics of of peripheral ports, and associated cables including the following:
Serial, parallel, USB, IEEE 1394/Firewire, and Infrared ports
Serial-straight, serial-cross, null modem, parallel, and USB cable types,
DB-9, DB-25, RJ-11, RJ-45, DB-25, and Centronics (mini 36) connector types
PS2, Mini-Din, USB, IEEE1394 connector types
VI. Acquire skills to install and configure common IDE devices. These include the following:
- IDE interface types: EIDE, ATA/ATAPI, Serial ATA, PIO
- RAID (0,1, and 5)
- Master/Slave/cable select
- Devices per channel
- Cable orientation/requirements
VII. Identify proper procedure for installing and configuring SCSI devices and cables. These include the following:
- SCSI Interface Types: Narrow, Fast, Wide, Ultra-wide, LVD, HVD
- Internal and External
- SCSI IDs: Jumber block/DIP switch settings, resolving ID conflicts
- RAID (0, 1 and 5)
- Cabling: Length, type, and termination requirements.
VIII. Acquire skills for installing and configuring common peripheral devices. The devices include the following:
- Dial-up, DSL, ISDN modems, and tranceivers
- External storage devices
- Digital cameras, pdas, wireless access points, infrared devices, ups, and monitors
IX. PC operations optimixation. This may include the following:
- Liquid, air, and heatsink cooling. Applying thermal compound, and its role in cooling.
- Disk subsystems enhancements for hard drives, controller cards, and cables
- Specialized video cards
- memory, and additional processors.
X. Issues to be considered while upgrading a PC:
Drivers for legacy devices,
Bus types and characteristics,
Cache, memory capacity requirements
Hard drive compatibility,
Power supply connectors, and output voltages and capacity requirements.
Check for compatibility of the following components:
Motherboards, Memory, Hard drives, cpu, adaptyer cards, bios, pcmcia cards, and power sources.
Diagnosing and Troubleshooting
2.1 Identification of common PC problems, and arriving at appropriate steps to be taken for fixing the same. Given a problem situation, identify the most likely cause. The content may include the following:
- I/O ports and cables: serial, parallel, USB ports, IEEE 1394 Firewire, Infrared, and SCSI
- Motherboards: CMOS BIOS setting, POST visual and/or audible error codes.
- Troubleshooting peripherals like printers, scanners
- Computer case: Power supplies, Slot covers, and Front cover alignment
- Storage devices and cables including FDD, HDD, CD R/W, DVD, DVDRW, tape drive, and removable storage
- Cooling systems including fans, heat sinks, temperature sensors, and liquid cooling
- Processor, memory, and display devices.
- Input devices including keyboard, mouse, and touch screen
- Adapters including NIC, sound card, video card, modem, scsi, ieee 1394, and usb.
- Portable systems include pcmcia, batteries, docking stations, port replicators, and portale unique storage.
2.2 Identify basic troubleshooting procedures and tools. Enquire problem symptoms from customers. Content include the following:
- troubleshooting, isolation, and problem determination procedures,
- Determining whether a hardware or software problem,
- Collecting information from user regarding customer environment, symptoms/error codes, and situation when the problem occured.
PC Preventive Maintenance, Safety, and Environmental issues
Identification of various types of preventive maintenance measures, products, and procedures. When, and how to use them. Content may include the following:
Liquid cleaning compounds
Types of materials to clean contacts, and connections
- Non-static vacuums (chassis, power supplies, and fans)
- Cleaning monitors,
- Cleaning removable media devices,
- Ventilation, dust and moisture control on PC hardware interior,
- Hard disk maintenance including defragging, scan disk, CHKDSK
- verifying UPS, and spike suppressors
3.2 Identify various safety measures and procedures and when/how to use them. Content may include the following:
- ESD (Electrostatic Discharge) precautions, and procedures. This contains 1. The damage that ESD can inflict on electronic components, both hidden and apparent, 2. Common ESD protection devices, 3. Situations that could present a hazard.
- Potential hazards, and proper safety procedures relating to 1. high voltage equipment, power supply, and CRTs
3.3 Identify environmental protection measures and procedures. Know when and how to use them. Content may include the following:
Special disposal procedures that comply with environmental guidelines for batteries, CRTs, chemical solvents and cans, and MSDS (Material Safety Data Sheet)
4.1 Distinguish between the popular CPU chips using their basic charageristics. Content may include the following:
Popular CPU chips (Pentium class compatible)
Speeds (actual vs. advertised)
Cache level 1, level ii, level iii
4.2 Identify the types of RAM, form factors, and operational characteristics. Banking and speed requirements determination for a given scenarios. Content may include the following:
- Memory types include the following: EDO RAM,. DRAM, SRAM, VRAM, SDRAM, DDR, RAMBUS.
- Form factors include the following: SIMM, DIMM, SoDIMM, MicroDIMM, RIMM
- Operation characteristics may include memory chips (8-bit, 16-bit, and 32-bit) - 1. Parity chips vs. non-parity chips, 2. ECC vs. non-EC 3. Single-sided vs. double sided
4.3 Identify the popular types of motherboards, their components, and thier architecture (bus structures). COntent may include the following:
AT, ATX motherboards
- Communication pors: Serial, USB, Parallel, IEEE 1394 Firewire, Infrared
- Memory: SIMM, DIMM, RIMM, SoDIMM, MicroDIMM
- Processor sockets: Slot 1, Slot 2, Slot A, Socket A, Socket 7, Socket 8, Socket 423, Socket 478, Socket 370
- External cache memory (level 2)
- Bus architectures: ISA, PCI-32 bit, PCI-64bit, AGP (2X, 4X, and 8X Pro), USB, AMR (Audio Modem Riser) slots, CNR (Communication network riser) slots, basic compatibility guidelines, IDE (include ATA, ATAPI, ULTRA-DMA, EIDE), SCSI (include Narrow, Wide, Fast, Ulra, HVD, and LVD), and chipsets.
4.4 Identify the purpose of CMOS memory. The significance of changing the paramenters of a CMOS. Topics may include the following:
- Default settings,
- CPU settings,
- Printer parallel port -uni, bi-directional, diable/enable, ECP, EPP
- CMOS/Serial port - memory address, interrupt request, disable
- Floppy drive - enable/disable drive or boot, speed, density
- Hard drive- size and drive type
- Memory - speed, parity, non-parity
- Boot sequence
- Plug and Play BIOS,
- Disabling on-board devices
- Disabling virus protection
- Power management
5.1 Identify printer technologies, interfaces, and options/upgrades
- Technologies include Laser, Ink dispersion, dot matrix, solid ink, thermal, dye sublimation.
- Interfaces include parallel, network, scsi, usb, infrared, serial, ieee 1394 firewire, and wireless.
- Options/upgrade include memory, hard drives, nics, trays and feeders, finishers (like stapling), and scanners/fax/copier
5.2 Common printer problems and techniques to fix the same. Topics include the following:
Printer drivers, firmware updates, paper feed and output, calibrations, printing test pages, errors, memory, configuration, network connections, connections, paper jam, print quality, safety precautions, preventive maintenance, consumables, and environment.
6.1 Identify common types of network cables, their properties, and connectors:
- Cable types include Co-axial (RG6, RG8, RG58, RG59), Plenum/PVC, UTP (CAT3, CAT 5e, CAT 6), STP, Fiber (Single mode, multi mode).
- Connector types include BNC, RJ-45, AUI, SC/ST, IDC/UDC
6.2 Identify basic networking concepts including working concepts. The topics incldue the following:
- Installing and configuring network cards, addressing, bandwidth, status indicators.
- Protocols including tcp/ip, ipx/spx, appletalk, netbeui/netbios
- full-duplex, half-duplex communicaiton,
- Cabling include twisted pair, coaxial, fiber optic, and rs-232
- Networking models include peer-to-peer and client-server.
- Infrared, and wireless networking
6.3 Identify common technologies available for establishing Internet connectiveity and their characteristics.
- The topics may include lan, dsl, cable, isdn, dial-up, satellite, and wireless.
- The characteristics to study include definition, speed, and connections.
Number of questions: 80 (approximate, may vary slightly)
Time allowed: 90 minutes
Passing Score: Minimum score os 515 on a scale of 100-900
Exam format: Linear
Domain areas covered by A+ Core Hardware exam:
1.0 Installation, Configuration and Upgrading 35% Weightage
2.0 Diagnosing and Troubleshooting 21% Weightage
3.0 Preventive Maintenance 5% Weightage
4.0 Motherboard/Processors/Memory 11% Weightage
5.0 Printers 9% Weightage
6.0 Basic Networking 19% Weightage
Total Weigtage:35+21+5+11+9+19 or 100%
Note that as of now, the latest exam objectives correspond to Nov. 2003. CompTIA has not yet revised the exam since Nov. 2003. Comptia may revise the exam objectives from time to time.