Summary
This section discusses troubleshooting the following common video problems.
-
System does not boot
-
Colors not correct/Colors are not smooth
-
Blurry images, strange color tints
-
Image missing, doesn’t fill the screen, skewed, or cut off
-
Program or system lockup, system crashes, slow video performance
-
Screen flickers or appears wavy, user reports headaches
-
Scrambled or distorted images, blank screen, high-pitched tone
-
Image does not display on a second monitor
-
Slow performance when drawing screens
-
Video files or DVD video does not play, audio plays but no video
Students will learn how to:
-
Troubleshoot monitors with no display.
-
Troubleshoot monitors displaying in VGA mode.
-
Troubleshoot monitor thermal shutdown.
-
Determine the native resolution for an LCD monitor.
-
Troubleshoot backlight issues on LCD monitors.
-
Fix dead or stuck pixels on an LCD monitor.
-
Degauss a CRT monitor.
A+ 220-802 Exam Objectives: -
4.4 Given a scenario, troubleshoot common video and display issues.
-
Common symptoms
-
VGA mode
-
No image on screen
-
Overheat shutdown
-
Dead pixels
-
Artifacts
-
Color patterns incorrect
-
Dim image
-
Flickering image
-
Distorted image
-
Discoloration (degaussing)
-
BSOD
Lecture Focus Questions:
-
What components comprise the video system in a PC?
-
No output is displayed on a video monitor. What could be causing this?
-
The output on a video monitor is displayed in VGA mode. What could be causing this?
-
A monitor suddenly shuts off during use. What could be causing this?
-
The display on an LCD monitor looks pixilated and chunky. What could be causing this?
-
The display on an LCD monitor is dim. What could be causing this?
-
The display on an LCD monitor is flickering. What could be causing this?
-
An LCD monitor has dead and stuck pixels. How can you fix this?
-
The display on a CRT monitor is discolored. How can you fix this?
Video/Demo Time
 13.3.1 Common Video and Display Issues 1 14:58
13.3.2 Common Video and Display Issues 2 11:03
13.3.3 Video Troubleshooting 15:19
Total 41:20
10 questions
Total Time
About 55 minutes
Section 13.4: Network Troubleshooting Summary
This section discusses troubleshooting network problems.
-
Steps to identify the scope of the network problem
-
Verify the network adapter
-
Verify physical connectivity
-
Verify the IP configuration
-
Verify network connectivity
-
Troubleshooting network communications
-
Physical issues
-
Interference
-
IP configuration
-
Communication issues
-
Network issues
-
Resource access issues
Students will learn how to:
-
View the status of a network connection.
-
Use ping and ipconfig to troubleshoot network connectivity problems.
-
Troubleshoot IP address conflicts.
-
Troubleshoot DHCP client issues.
A+ 220-801 Exam Objectives: -
2.10 Given a scenario, use appropriate networking tools.
-
Crimper
-
Multimeter
-
Toner probe
-
Cable tester
-
Loopback plug
-
Punchdown tool
A+ 220-802 Exam Objectives: -
4.5 Given a scenario, troubleshoot wired and wireless networks with appropriate tools.
-
Common symptoms
-
No connectivity
-
APIPA address
-
Limited connectivity
-
Local connectivity
-
Intermittent connectivity
-
IP conflict
-
Slow transfer speeds
-
Low RF signal
-
Tools
-
Cable tester
-
Loopback plug
-
Punch down tools
-
Toner probes
-
Wire strippers
-
Crimper
-
PING
-
IPCONFIG
-
TRACERT
-
NETSTAT
-
NBTSTAT
-
NET
-
Wireless locator
Lecture Focus Questions:
-
What is the first thing you should try if the link light is not lit? What should you try next?
-
What should you try if all of the computers on the network are having the same problem?
-
What kind of problem is likely indicated when you can ping a device by the IP address but not the host name?
-
What additional information is shown when you use the /all switch with the ipconfig command?
-
Two hosts report that they are using the same IP address. What should you do?
-
A host has an IP address of 169.254.0.2. What caused this?
-
You are receiving an intermittent wireless network signal. What could be causing this?
Video/Demo Time
13.4.1 Common Wired and Wireless Network Issues 20:52
13.4.2 Network Troubleshooting 1 4:34
13.4.3 Network Troubleshooting 2 17:02
 13.4.4 Troubleshooting Network Connectivity 1 19:50
13.4.6 Troubleshooting Network Connectivity 2 12:20
Total 74:38
Lab/Activity -
Fix a Network Connection 1
-
Fix a Network Connection 2
Number of Exam Questions
21 questions
Total Time
About 115 minutes
Share with your friends: |
