CompTIA A+: Complete Study Guide

CompTIA A+
Complete Study Guide (220‎-901 Exam)

In order to receive CompTIA A+ certification a candidate must pass two exams. The first exam is CompTIA A+ 220-901 Certification Exam. The CompTIA A+ 220-901 examination measures necessary competencies for an entry-level IT professional with the equivalent knowledge of at least 12 months of hands-on experience in the lab or field.Successful candidates will have the knowledge required to:
-Assemble components based on customer requirements
-Install, configure and maintain devices, PCs and software for end users
-Understand the basics of networking and security/forensics
-Properly and safely diagnose, resolve and document common hardware and software issues
-Apply troubleshooting skills
-Provide appropriate customer support
-Understand the basics of virtualization, desktop imaging, and deploymentCompTIA A+ is accredited by ANSI to show compliance with the ISO 17024 Standard and, as such, undergoes regular reviews and updates to the exam objectives. The following CompTIA A+ 220-901 exam objectives result from subject matter expert workshops and industry-wide survey results regarding the skills and knowledge required of an entry-level IT professional. The percentages in this document represent the relative importance of the subject areas (domains) in the associated body of knowledge, and together establish the foundation of an entry-level IT professional. This examination blueprint includes domain weighting, test objectives, and example content. Example topics and concepts are included to clarify the test objectives and should not be construed as acomprehensive listing of all the content of this examination.

Introduction
What is CompTIA Certification?
What are CompTIA Certifications?
Other Types of CompTIA Certifications
Why Obtain Certification?
What is an A + Certificate?
What are the subjects covered in the certificate?
Exam 220-901
Exam 220-902
Mechanism for taking the exam
Obtaining the certificate and its validity

Chapter I
Reboot
Form factor
Motherboard components
CPU Socket
Buses
Northbridge and Southbridge
Memory slots
Expansion Slots
Feed ports
PATA / IDE port
Connecting ports to the box body
Conclusion
BIOS
Takeoff process
BIOS settings
Reprogramming
The UEFI system is a replacement for BIOS
ITE chip and Winbond chip
Integrated chips
Back ports
Electronic items
Capacitors
Jumper
How to choose the right motherboard
Conclusion

Chapter II
Processor components
Control Unit
ALU (Arithmetic Logic Unit)
MMC (Memory Management Unit)
Form factor
LGA
PGA
SECC
Cache memory
Types of cache memory
Mechanism of working with the processor
Multicore processors
Clock speed
Buy and install a processor on the motherboard
Conclusion

Chapter III
Reboot
Hard drive components
Discs Platters
Read / write heads
Electric motors
Electronic board
Hard drive specifications
Formatting the hard drive
Retail Partitioning
High-level configuration
Disk storage mechanism
Form factor
Hard drive delivery techniques
PATA (Parallel ATA)
SATA technology (Serial ATA)
SAS (Serial Attached SCSI)
SSD alternative

Chapter IV
Power
Types of connections
Form factor
How to choose the right feed unit

Chapter V
Types of printers
Collision printers
Non-collision printers
Laser Printers
Other types of printers
Thermal printer
Photo Printer
Portable Printers
The multifunction printer

Chapter VI
TCP / IP Model
Protocols
Media Access Control
ICMP
TCP
UDP
HTTP
FTP
DNS
SSH
Conclusion

Chapter VII
Network card
Distributor
Switcher
the bridge
The router
Wireless access point
Plug cables
Coaxial cable
Stranded cable
Optical fiber cable
Physical network diagrams
Bus chart
Star chart
Ring chart
Full-Mesh
Conclusion
Motherboard problems and crashes
Crash test card
RAM problems and crashes
Processor problems and crashes
Hard drive problems and crashes
Conclusion