CertiGuide to A+ (Operating Systems)  9  Introduction and “Guide to the Guide”       9  CompTIA A+ OS Technologies Exam Blueprint

Domain 2.0: Installation, Configuration and Upgrading 1 Domain 4.0: Networks

3.1 Recognize and interpret the meaning of common error codes and startup messages from the boot sequence, and identify steps to correct the problems:

• Safe Mode
  
  
• No operating system found
  
  
• Error in CONFIG.SYS line XX
  
  
• Bad or missing COMMAND.COM
  
  
• HIMEM.SYS not loaded
  
  
• Missing or corrupt HIMEM.SYS
  
  
• SCSI
  
  
• Swap file
  
  
• NT boot issues
  
  
• Dr. Watson
  
  
• Failure to start GUI
  
  
• Windows Protection Error
  
  
• Event Viewer - Event log is full
  
  
• A device referenced in SYSTEM.INI, WIN.INI, Registry is not found

3.2 Recognize common problems and determine how to resolve them.

• Eliciting problem symptoms from customers
  
  
• Having customer reproduce error as part of the diagnostic process
  
  
• Identifying recent changes to the computer environment from the user
  
  
• Troubleshooting Windows- specific printing problems
  
  
• Print spool is stalled
  
  
• Incorrect/incompatible driver for print
  
  
• Incorrect parameter
  
  
• Other Common problems:
  • General Protection Faults
    
    
  • Illegal operation
    
    
  • Invalid working directory
    
    
  • System lock up
    
    
  • Option (Sound card, modem, input device) or will not function
    
    
  • Application will not start or load
    
    
  • Cannot log on to network (option NIC not functioning)
    
    
  • TSR (Terminate Stay Resident) programs and virus
    
    
  • Applications don't install
    
    
  • Network connection
  
  
  
• Viruses and virus types:
  • What they are
    
    
  • Sources (floppy, emails, etc.)
    
    
  • How to determine presence

Domain 2.0: Installation, Configuration and Upgrading 1 Domain 4.0: Networks