v=ZzKScjVOnpg Flashcards
You’ve received a trouble ticket that PC monitor is not working; what is the first thing you should do?
- Check to see if all cables are plugged in correctly: The power cable and video cable. If both are connected, check to see if computer is on.
- Otherwise, it could be a video driver issue or a hardware issue
What is Safe Mode, how do you get to it, and what is it used for?
- It is the diagnostic mode of an OS
- Safe mode can be reached by pressing F8 on startup, and then selecting “Safe Mode”
- It is used to troubleshoot system or driver issues
What is an IP address and how to find it?
- A number assigned to a device by a DHCP server
- ipconfig /all in the command prompt
- This address identifies the device on the network and facilitates communication with other devices
What is a default gateway?
- A node or router which serves as the entry and exit point between different networks
- Purpose: Allows devices on separate networks to communicate with one another
- ipconfig/all in the command prompt
- at home, the wifi router is the default gateway
What is active directory?
- A directory service that allows management of network resources, authentication (credentials), and authorization (permission)
- Such as: user accounts, group policies, computers
- Example: If a user needs a password reset, admins can do it from a single location
What is a domain?
- A grouping of network objects (users/computers) that share a common database and security policies
- Database: stores information about network objects within the domain, like user accounts, computer accounts, attributes (names, email addresses)
- Security policies (separate from database): applied to objects within the domain
- Why: Can use domain to define boundaries and manage network objects in a centralized manner
When you deploy Active Directory, you create one or more domains within a forest. Each domain has its own database that contains information about the objects (such as users, computers, groups) within that domain.
You receive a trouble ticket that states: “My printer is not working properly, it prints out weird pattern on the paper. Please assist”
- Install new drivers
- Use the maintenance function on printer
What are some commonly used lan cables?
- 5
- 5e
- 6
- 6a
What is the blue screen of death?
- An error screen
- Typically requires troubleshooting to find the underlying issue
- Could be hardware or software issue
What is DHCP?
- Dynamic host configuration protocol
- Automatically assigns IP addresses to devices
- Why:
- An IP address is required in order to properly communicate on the network
- So admins don’t have to
- Usually assigns a unique dynamic IP which can change anytime
What is DNS?
- Domain name system
- Translates domain names into IP addresses
- Because computers communicate with each other using IP addresses
What is VPN?
- virtual private network
- basically: a secure connection between a device and a VPN server
What is a ping command and it’s use?
- A network utility that
- Tests whether or not the host is reachable
- And gives you the latency in milliseconds
What is a group policy?
- Is a tool that is used to apply settings to [users] and [computers]
Settings include:
- Such as running startup and shutdown scripts
- Such as restricting access to control panel
Why?
- Provides centralized control over various parts of the MS OS
What is a .PST file?
- An Outlook file
- That contains messages and other Outlook items
