Troubleshooting

Descrição

CompTIA CompTIA A+ Exam FlashCards sobre Troubleshooting, criado por Shelby Hartsell em 29-12-2016.
Shelby Hartsell
FlashCards por Shelby Hartsell, atualizado more than 1 year ago
Shelby Hartsell
Criado por Shelby Hartsell quase 8 anos atrás
5
1

Resumo de Recurso

Questão Responda
Time/date resets to January 1 2000? Check lithium battery in CMOS
Trouble with CPU? Check CPU fan, heat sink and thermal compound/ check overclocking setting in BIOS/ check if CPU is secure
Noisy computer? Check CPU fan, case fan, power supply fan, and used compressed air and vacuum
Ram issue? Reset modules/ clean with compressed air.
RAM Over heating? check RAM heatsink
BIOS beep codes or errors? check motherboard docs and use POST card tester
Power issues? Test AC outlet with receptable tester or multimeter. Test power supply with PSU tester. Do not open power supply.
Slow hard drive? Defrag it, use disk cleaner and scan drive with AV software
Hard drive isn't recognized? Check connections, check in BIOS, initialize, partition and format in Disk Management
No second screen on laptop? Check Fn key.
Laptop display blank? check resolution settings, inverter, backlight, or damage to LCD
Printer paper jam? Power cycle, check paper tray, rollers, paper type, fuser, and entire paper path
Blank paper after printing? check toner cartridge and transfer corona wire
Smudges or lines on printing? Check drum, primary corona wire, and replace toner cartridge
Toner not staying on paper? Check fusing assembly
Garbage printout? Check print driver
Ghosted image when printing? Check drum and toner cartridge
No connectivity with printer? Check power, network connection, whether printer is shared, proper IP address and whether printer is set up as default
How to test network connections? patch tester, LAN cable tester, tone and probe
How to test NIC or RJ45 jack port? loopback plug
ipconfig displays current TCP/IP network configuration values
ipconfig/all shows additional information such as MAC address
ping tests whether another host is available over the network
tracert sends packets to test destinations beyound the local computer network
netstat Shows the network statistics for the local computer. Displays TCP and UDP sessions by computer name and port
nbtstat SHows network protocol statistics that use NetBIOS over TCP/IP connections. Shows core services running on local or remote machines
nslookup used to query DNS servers to find out DNS details, including the IP address of hosts
nslookup Used to query DNS servers to find out DNS details, including IP address of hosts
net use used to map network drives
net view view computers
net stop and net start stop/start services
net time synchronize time
netdom used to control active directory, add hosts to domain
ifconfig (LINUX) Linux equivalent of ipconfig
iwconfig (LINUX) Linux wireless equivalent of ifconfig
is (LINUX) list directory contents
chmod (LINUX) modifies permissions
ps (LINUX) displays process information
apt-get (LINUX) installs packages
sudo (LINUX) executes commands as admin
vi (LINUX) opens text editor
passwd (LINUX) changes password
shutdown (LINUX) brings system down
No network connectivity? Check link light, patch cable, disabled NIC, wireless switch is off, IP configuration and Windows Network Diagnostics
Limited network connectivity? Ping localhost, then move outward and use ipconfig/all
Poor wireless signal? check distance, placement, antennas, and update hardware and software
Get an APIPA address? ipconfig/release and /renew, check DHCP server

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