G-10 3rd Quarter w2

Republic of the Philippines
10
Department of Education
Region v
SCHOOLS DIVISION OF SORSOGON
BITON HIGH SCHOOL
TLE - ICT
Name of Learner: ___________________________ Grade Level _______________
Section: ___________________________________ Date Submitted: ____________
LEARNING ACTIVITY SHEET 2

DIAGNOSES AND IDENTIFICATION OF FAULTY COMPUTER
AND NETWORK SYSTEMS
I. INTRODUCTORY CONCEPT/ PANIMULANG KONSEPTO
- Computers, in general, are stable, and you can usually rely on them
to not fail you. However. If you develop some basic habits, you can
postpone serious computer problems, if not avoiding them entirely.
II. LEARNING SKILLS FROM MELCs/ KASANAYANG

PAMPAGKATUTO MULA SA MELCs
- Identify faulty computer and networks systems
III. ACTIVITIES/ MGA GAWAIN
A. Let Us Review/ Pagbalik-aralan Mo.
Before you start studying the next lesson, take the simple test
first to find out how much you already know about the topic to be
discussed.
1. Do you know why most of computer breakdown?

2. What computer issues / problems have you encountered?
1
B. Let Us Study/ Pag-aralan Mo.
Diagnoses and Identification of Faulty Computer and

Network Systems
A. Preventing Computer Systems Failure
2
3
B. Network Problems
1. Unplugged Network Cable
Unplugged or loose network cables are one of the most common

reasons why you might suddenly find yourself unable to connect to
the Internet. That's a problem on wireless networks, but on most
laptops the wireless-fidelity (Wi-Fi) radio can be inadvertently shut
off instead. On home networks, it's also possible that someone
unplugged the router.
Action: Ensure your wired or wireless network hardware is

switched on and plugged in.
4
2. Website Temporarily Offline
What may seem to be a network problem connecting to the

Internet is sometimes simply a Web site (or whatever server is on
the other end of the connection) being temporarily offline.
Action: Before assuming your Internet connection is faulty, try

visiting several popular Web sites rather than just one.
3. IP Address Conflicts
If your computer and another on the network both have the

same IP address, the conflict between them will prevent either from
working properly online.
Action: To resolve an IP conflict, follow these instructions to

release and renew your IP address. If your network uses static IP
addresses, manually change your IP to a different number.
Windows XP
Step 1: Click Start >

Run. In the Run window,
enter “cmd” then click
OK.
Step 2: On the command

prompt, enter
“ipconfig/release” then
press [Enter].
Step 3: Once the IP

address becomes 0.0.0.0,
enter “ipconfig/renew”
then press [Enter].
4. Computer Firewall Malfunctions
Firewall software running on most computers is intended to

prevent unwanted network traffic from disrupting its operation.
Unfortunately, these software firewalls can malfunction and start
blocking valid Internet traffic. When two software firewalls, such as
Windows Firewall plus a third-party product, are installed on the
same computer, contention between the two can also incorrectly
block traffic.
5
Action: If you have recently installed or upgraded software firewalls
on your computer, temporarily disable them to determine whether
it may be the cause of Internet connection problems.
5. Outside Wireless Signal Range
The performance of Wi-Fi network connections depends on

distance between the device and the wireless access point. The
farther away a Wi-Fi device is, the slower the local connection
generally runs, until it breaks altogether. Wireless signal
interference in the area can also limit the effective range of a Wi-Fi
connection. Whenever you are unable to reach the access point,
you also cannot connect to the Internet, obviously.
Action: Use one of the options written below to measure the

strength of your wireless signal and try these ideas to expand the
range of your Wi-Fi.
Ideally, you should place the router at a height in some central

location and away from other cordless devices. Make sure that the
router is not placed near something metallic (like an almirah or
window grills) as that will weaken the wireless signals. Avoid
mirrors as they can reflect the wireless signals away from the
desired direction.
Wireless routers generally ship with omni-directional antennas but

you can replace them with more powerful uni-directional antennas
and that will keep the signal from getting broadcast in all
directions.
6. Wireless Network Configuration
Wi-Fi networks with encryption options like WPA or WEP turned

on require computers to use matching security keys when
connecting. If someone changes the encryption keys or password
on the access point, devices that worked before will suddenly be
unable to establish sessions and Internet connections. Likewise
(though less likely), if the access point settings are changed to
require using a specific Wi-Fi channel number, some computers
may be unable to discover it.
Action: Confirm that the Wi-Fi channel number and encryption

keys on your router have not recently changed (check with the
network administrator if necessary). When using a hotspot, follow
the provider's instructors for signing in carefully.
7. Broadband Router or Access Point Malfunctions
Home networks that use broadband routers are easier to

manage than those without one, but technical glitches with the
6
router can also prevent computers from connecting to the Internet.
Router failures are caused by overheating, excessive traffic, or
simply a faulty unit. Typical symptoms of a flaky router include
computers on the network not being able to obtain IP addresses, or
the router console not responding to requests.
Action: Check the router's lights and console if possible to ensure it

is running and responding properly. Troubleshoot and reset the
router if necessary. Change the old router if necessary.
8. Blocked By Your Service Provider
Internet Service Providers (ISPs) can choose to block access

from
your account if you fail to make payment or otherwise violate the
provider's Terms of Service. Especially when using paid hotspots
that charge by the hour or day, sometimes people forget to keep
their subscription updated.
Other common reasons an ISP might block your account include

exceeding bandwidth caps, sending spam e-mail, and downloading
illegal or inappropriate content.
Action: Contact your ISP if you suspect your account has been
blocked.
9. Computer Glitches
Computers suffer from technical glitches or malfunctions.

Although relatively uncommon nowadays, a computer's network
adapter hardware might suddenly fail due to overheating or age.
Failures in the operating system software that control the adapter,
on the other hand, can occur frequently especially with computers
that are heavily used. Viruses and worms also may disable or block
a computer's network interfaces from functioning properly. If using
a laptop or other mobile device, transporting it from one location to
another can corrupt the state of its network.
Action: Check the computer and remove any malware that you will
find. On Windows computers, try resetting the network connection.
Reboot the computer if necessary.
10. Network Downtime
Those using satellite Internet service may notice they cannot

connect to the Internet during periods of very bad weather.
Providers in dense urban areas (including cellular Internet carriers)
sometimes are unable to support peaks in network traffic that
causes sporadic outages for some customers.
7
Finally, those who subscribe to newer or more complex forms of
Internet services (such as fixed wireless broadband) may
experience more downtime than others as providers encounter
more issues with relatively less mature equipment.
Action - If all else fails, contact your Internet provider to verify

whether they are experiencing an outage. Some providers also give
advice on troubleshooting problems connecting to their network.
C. Let Us Practice/Pagsanayan Mo.
Direction: Identify the following problems.
1. Preventing failure means making sure your computer is

physically clean in its operations. Make sure that there is not
too much dust inside, especially on the fans. Dust can reduce
performance and cause overheating.
2. Know your computer's specifications and its limits. RAM runs
even the PC is running idly. It consumes RAM storages capacity
making you difficult to open a program if RAM storage had been
consumed.
3. Make sure that your anti-virus software is updated to be able to
scan unnecessary files that enter your PC. Do not install
programs that you are not familiar with or if do not fully trust.
4. If the same error message shows up every time you log in, be
sure to investigate it. Although unlikely, these errors could be
important.
5. Give your computer a break. Believe it or not, your computer
likes rest, too. Leaving it on all of the time wears out hardware
and puts unnecessary wear and tear on the hardware. Giving
your computer a break also saves you money (electrical bills).
D. Let Us Remember/ Tandaan Mo.
- Always keep in mind that if you want to take good care of your
PC’s then preventive maintenance is a must. Make an schedule for
the maintenance, study the problems encountered and conduct a
research for the solutions it maybe online or ask help to someone
who knows the solutions.
E. Let Us Practice More/ Gawin Mo.

Direction: In this worksheet, you will write the computer
errors/problems, error messages and the network problems you
encountered. You can also depend on the problems you
encountered while using cellphone.
Computer Problems Network Problems
8
1. 1.
2. 2.
3. 3.
F. Evaluation/ Pagtataya
Direction: Give possible solutions to the problems.
1. Dust Issues
2. Malware Issues
3. Usage Issues
4. Backup Issues
5. Error Messages Issues
VI. REFERENCE/ SANGGUNIAN
K to 12 – Technology and Livelihood Education TLE_ICTCS10MNIIIa-e-1

G-10 3rd Quarter w2

Uploaded by

Copyright:

Available Formats

G-10 3rd Quarter w2

Uploaded by

Document Information

Original Description:

Original Title

Copyright

Available Formats

Share this document

Share or Embed Document

Sharing Options

Did you find this document useful?

Is this content inappropriate?

Copyright:

Available Formats

G-10 3rd Quarter w2

Uploaded by

Copyright:

Available Formats

Republic of the Philippines

LEARNING ACTIVITY SHEET 2

I. INTRODUCTORY CONCEPT/ PANIMULANG KONSEPTO

II. LEARNING SKILLS FROM MELCs/ KASANAYANG

- Identify faulty computer and networks systems

III. ACTIVITIES/ MGA GAWAIN

A. Let Us Review/ Pagbalik-aralan Mo.

1. Do you know why most of computer breakdown?

Diagnoses and Identification of Faulty Computer and

A. Preventing Computer Systems Failure

1. Unplugged Network Cable

Unplugged or loose network cables are one of the most common

Action: Ensure your wired or wireless network hardware is

What may seem to be a network problem connecting to the

Action: Before assuming your Internet connection is faulty, try

If your computer and another on the network both have the

Action: To resolve an IP conflict, follow these instructions to

Step 1: Click Start >

Step 2: On the command

Step 3: Once the IP

4. Computer Firewall Malfunctions

Firewall software running on most computers is intended to

The performance of Wi-Fi network connections depends on

Action: Use one of the options written below to measure the

Ideally, you should place the router at a height in some central

Wireless routers generally ship with omni-directional antennas but

6. Wireless Network Configuration

Wi-Fi networks with encryption options like WPA or WEP turned

Action: Confirm that the Wi-Fi channel number and encryption

7. Broadband Router or Access Point Malfunctions

Home networks that use broadband routers are easier to

Action: Check the router's lights and console if possible to ensure it

8. Blocked By Your Service Provider

Internet Service Providers (ISPs) can choose to block access

Other common reasons an ISP might block your account include

Computers suffer from technical glitches or malfunctions.

10. Network Downtime

Those using satellite Internet service may notice they cannot

Action - If all else fails, contact your Internet provider to verify

C. Let Us Practice/Pagsanayan Mo.

Direction: Identify the following problems.

1. Preventing failure means making sure your computer is

D. Let Us Remember/ Tandaan Mo.

E. Let Us Practice More/ Gawin Mo.

Computer Problems Network Problems

Direction: Give possible solutions to the problems.

VI. REFERENCE/ SANGGUNIAN

K to 12 – Technology and Livelihood Education TLE_ICTCS10MNIIIa-e-1

You might also like