Desktop Support Questions and Answawer
What is the difference between switch and a hub
Switches are able to segment a single network/only send packets to requesting computer
Hub-all computers get packets which can create latency issue
How to Recover Data from a virus-infected computer?
- virus scan
- my need to go to safe mode and run scan
- take out Hard drive and connected to another computer that has updated Virus definitions, updated MS Patches and drivers. Scan the infected Hard Drive and extract data that’s needed
How to cheek on the temperature/Hard drive health of you computer?
-Speedfan
How to check details of your Hardware system?
Speccy from CCleaner (for windows)
Monitor not working?
- Check power (computer & Monitor)
- Check cable connection
- Pull out one cable and check…pay attention Check type of cable HDMI, DP, VGA, DVI (are different cables used for different Monitors is there an adopter)
- Other possibilities -Video driver or PC Hardware could be causing issues
How to get to Safe Mode?
- Restart computer and press F8 before OS load than select Safe Mode
- Some computer Ctrl + F8 / Fn + F8 check on your computer brand
- On windows ---Win—power—shift + restart—Troubleshoot—advance option
- Newer computer boot very fast so you won’t have time to press F8 before it boots, specially those using SSD
-several attempts my be required
-You may need to enable F8 before by going to CMD and typing “bcdedit /set {default} bootmenupolicy legacy ”
5. Win+run—Boot—Safe boo + minimal
6. Hold down Power button until PC is completely off and repeated 2 to 3 times/when you see preparing Automatic Repair
Next this will come
Press the F4 key or number 4 key on your keyboard to enter Safe Mode.
*safe mode only allows essential system programs and services to start up at boot and its used to troubleshoot driver issues, hardware issues and to remove viruses
What is IP address
-A number assigned by the DHCP to each computer to identify existence/location
-CMD-Ipconfig/all (or) check network adopter properties
-Private IP address (within a network and its not routable)
-Public IP address routable
-Router has private IP on one side and Public on the other side of its connection to the wall port ISP (Internet Service Provider)
What is Default gateway
- The IP address of a router or server (a path to reach other networks
- CMD-ipconfig /all
- At home—typically the router
- At business – proxy server
What is Active Directory
- Feature of Windows server
- Contains user accounts, objects/hostnames, group policies, and domain services
- i.e..user login credentials –reset password
- assign different group policies > permissions to user accounts that belong to specific group in an organization or domain
What is a domain
-Group of computer and users connected to a network
-PC host name must be added to the same domain
-User can login to any computer in the same network even if it belonged to a different domain (server)
Printer printing weir characters?
-Update printer driver
What are common Used LAN ethernet cables
CAT5- 100mbpsCAT5 e-1000 mbps
CAT6 -1000mbps certified gigabitCAT6 a -10,000 mbps
*All speeds based on 100 meters max. distance
What is BSOD (Blue Screen of Death)
-BSOD commonly caused by hardware
-search on the number reference provided on google to pin point the issue
-listing to the number of beebs and check what it means for your specific system
-Generaly can be caused by hardware, software or driver issues and conflicts.
-Run full hardware diagnostic on the PC and update all drivers
What is DHCP
-Dynamic Host Configuration Protocol -Assigns IP address to systems
What is DNS
-Domain Name Server
-Its like an address book for the hostname which are translated as number for computers to understand
What is VPN
-Used to securely connect tow remote location like home to business
-data encrypted in between for security
What is a ping command
-Used to determine if computer has access to external resources
-CMD – ping + web address (or) Ip address
-Will send 4 packets and provide Latency milliseconds
What is Group Policy (GP)
-Active Directory assigns GP to each mew user added in the database
-i.e. user login credentials and permissions will be assigned to a GP that will assign the level of permission (i.e read/write or execute and restrict access to network resources)
What is .PST file?
Used by outlook archive file. An email archived is commonly known as a PST and saved into the computer.
How do you change folder permission
-At Group Policy
-At local level with Admin. Privileges –(click on folder-properties-security-edit (pop up will provide the ability to add users and allow for read, write, Execute or full permission))
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