Windows Server Top 200 Interview Questions Appendix A

Appendix A — Top 100 PowerShell Commands for Windows Server Administrators

1. PowerShell Basics and Help — 1 to 10

#	PowerShell Command	Purpose
1	Get-Help	Displays help for cmdlets
2	Get-Command	Lists available commands
3	Get-Member	Shows properties and methods of an object
4	Get-Alias	Lists PowerShell aliases
5	Get-Module	Lists loaded modules
6	Import-Module	Imports a PowerShell module
7	Get-ExecutionPolicy	Displays the current script execution policy
8	Set-ExecutionPolicy	Changes the execution policy
9	Get-History	Displays command history
10	Clear-History	Clears PowerShell command history

2. System Information — 11 to 20

#	PowerShell Command	Purpose
11	Get-ComputerInfo	Displays detailed computer information
12	Get-CimInstance Win32_OperatingSystem	Displays OS information
13	Get-CimInstance Win32_ComputerSystem	Displays computer hardware information
14	Get-CimInstance Win32_BIOS	Displays BIOS information
15	Get-CimInstance Win32_Processor	Displays CPU information
16	Get-HotFix	Lists installed Windows updates
17	Get-Date	Displays the current date and time
18	Get-TimeZone	Displays the configured time zone
19	Get-Uptime	Displays system uptime
20	Restart-Computer	Restarts a local or remote computer

3. Services and Processes — 21 to 30

#	PowerShell Command	Purpose
21	Get-Service	Lists Windows services
22	Start-Service	Starts a service
23	Stop-Service	Stops a service
24	Restart-Service	Restarts a service
25	Set-Service	Changes service configuration
26	Get-Process	Lists running processes
27	Stop-Process	Terminates a process
28	Start-Process	Starts an application or process
29	Wait-Process	Waits for a process to stop
30	Get-ScheduledTask	Lists scheduled tasks

4. Files and Folders — 31 to 40

#	PowerShell Command	Purpose
31	Get-ChildItem	Lists files and folders
32	Set-Location	Changes the current directory
33	New-Item	Creates a file or folder
34	Copy-Item	Copies files or folders
35	Move-Item	Moves files or folders
36	Remove-Item	Deletes files or folders
37	Rename-Item	Renames a file or folder
38	Get-Content	Reads file content
39	Set-Content	Replaces file content
40	Add-Content	Appends content to a file

5. Networking — 41 to 50

#	PowerShell Command	Purpose
41	Get-NetIPAddress	Displays IP addresses
42	New-NetIPAddress	Configures a new IP address
43	Remove-NetIPAddress	Removes an IP address
44	Get-NetAdapter	Lists network adapters
45	Enable-NetAdapter	Enables a network adapter
46	Disable-NetAdapter	Disables a network adapter
47	Get-NetIPConfiguration	Displays network configuration
48	Test-Connection	Tests network connectivity
49	Test-NetConnection	Tests host and TCP port connectivity
50	Resolve-DnsName	Performs DNS resolution

6. Active Directory — 51 to 65

Requires the Active Directory PowerShell module.

#	PowerShell Command	Purpose
51	Get-ADUser	Retrieves AD users
52	New-ADUser	Creates an AD user
53	Set-ADUser	Modifies an AD user
54	Remove-ADUser	Deletes an AD user
55	Enable-ADAccount	Enables an AD account
56	Disable-ADAccount	Disables an AD account
57	Unlock-ADAccount	Unlocks a locked AD account
58	Set-ADAccountPassword	Resets an AD password
59	Get-ADGroup	Retrieves AD groups
60	New-ADGroup	Creates an AD group
61	Add-ADGroupMember	Adds members to an AD group
62	Remove-ADGroupMember	Removes members from an AD group
63	Get-ADComputer	Retrieves AD computer objects
64	Get-ADDomain	Displays domain information
65	Get-ADForest	Displays forest information

7. DNS and DHCP — 66 to 75

#	PowerShell Command	Purpose
66	Get-DnsServerZone	Lists DNS zones
67	Get-DnsServerResourceRecord	Lists DNS records
68	Add-DnsServerResourceRecordA	Creates an A record
69	Remove-DnsServerResourceRecord	Removes a DNS record
70	Clear-DnsClientCache	Clears the DNS client cache
71	Get-DhcpServerv4Scope	Lists DHCP scopes
72	Add-DhcpServerv4Scope	Creates a DHCP scope
73	Get-DhcpServerv4Lease	Lists DHCP leases
74	Add-DhcpServerv4Reservation	Creates a DHCP reservation
75	Get-DhcpServerv4Failover	Displays DHCP failover configuration

8. Windows Server Roles and Features — 76 to 80

#	PowerShell Command	Purpose
76	Get-WindowsFeature	Lists Windows Server roles and features
77	Install-WindowsFeature	Installs roles and features
78	Uninstall-WindowsFeature	Removes roles and features
79	Get-WindowsCapability	Lists Windows capabilities
80	Add-WindowsCapability	Installs a Windows capability

9. Storage and Disk Management — 81 to 90

#	PowerShell Command	Purpose
81	Get-Disk	Lists physical disks
82	Initialize-Disk	Initializes a disk
83	Get-Partition	Lists partitions
84	New-Partition	Creates a partition
85	Resize-Partition	Resizes a partition
86	Get-Volume	Lists volumes
87	Format-Volume	Formats a volume
88	Get-PhysicalDisk	Lists physical disks used by Storage Spaces
89	Get-StoragePool	Lists storage pools
90	New-StoragePool	Creates a storage pool

10. Logs, Security, Hyper-V and Remote Management — 91 to 100

#	PowerShell Command	Purpose
91	Get-WinEvent	Reads Windows event logs
92	Get-Acl	Displays file or registry permissions
93	Set-Acl	Changes permissions
94	Get-BitLockerVolume	Displays BitLocker status
95	Get-VM	Lists Hyper-V virtual machines
96	Start-VM	Starts a Hyper-V VM
97	Stop-VM	Stops a Hyper-V VM
98	Enable-PSRemoting	Enables PowerShell remoting
99	Enter-PSSession	Opens an interactive remote PowerShell session
100	Invoke-Command	Executes commands on remote computers

Essential PowerShell examples

# Find stopped services
Get-Service | Where-Object Status -eq "Stopped"

# Test whether RDP port 3389 is reachable
Test-NetConnection -ComputerName SRV01 -Port 3389

# Find enabled AD users
Get-ADUser -Filter * -Properties Enabled |
Where-Object Enabled -eq $true

# Find locked AD accounts
Search-ADAccount -LockedOut

# Check installed server roles
Get-WindowsFeature | Where-Object InstallState -eq "Installed"

# Check recent System events
Get-WinEvent -LogName System -MaxEvents 20

# Run a command remotely
Invoke-Command -ComputerName SRV01 -ScriptBlock {
    Get-Service
}