Windows PowerShell Scripting and Administration

Get-Member is a PowerShell cmdlet that displays the properties and methods of .NET objects, helping you understand an object's structure and available operations. When you pipe any object to Get-Member, it returns the object's type along with all its members like Properties, Methods, and Events.

Get-ChildItem with -Recurse (not -Recursively) lists all files recursively. Format-List with -Property displays the specified properties. Piping (|) connects the commands. Options B and D use invalid -Recursively flag, C uses non-existent Get-Children cmdlet.

PowerShell variable scopes are: global, script, local, private, and (for modules) exported. 'public' is NOT a valid scope modifier. Options A, C, D are valid scope declarations.

DirectoryServices.DirectorySearcher is the ADSI object used to search Active Directory. SearchResult represents a single result, DirectoryEntry represents an AD object, and SearchResultCollection is a collection of search results.

The -ErrorAction parameter in PowerShell controls error handling. 'SilentlyContinue' suppresses the error message and continues execution. 'Continue' (default) shows errors but continues. 'Suppress' is not a valid value.

The hash table starts with 3 entries. Adding 'Rose Jones' makes 4 entries. Removing 'Dave Davis' reduces it to 3 entries. The final count is 3: John Doe, Justine Smith, and Rose Jones.

$a = 'This is a string' (length 16). Option B: Substring(8, 5) extracts 5 characters starting from index 8. Index 8 is 'a' (0-based: T=0, h=1, i=2, s=3, space=4, i=5, s=6, space=7, a=8). Extracting 'a str' gives length 5, which matches.

PowerShell command resolution order is: aliases first (fastest), then functions, then CmdLets, then scripts, external executables, and finally normal files. Aliases override everything else for user convenience.

In PowerShell, the Trap statement is used to catch and handle terminating errors. It's similar to try/catch in other languages. Catch is used with Try, Throw raises errors, and Get is for retrieval.

Get-WmiObject is the PowerShell cmdlet used to retrieve WMI object information including OS details, IP configuration, and host system information. Invoke-WmiMethod invokes WMI methods, Get-WmiClass is not a standard cmdlet.

In PowerShell, the + operator concatenates arrays. $z = $x + $y creates a new array containing all elements from both arrays: (1, 2, 3, 4, 5, 6, 7, 8, 9, 10). Arrays are 0-indexed, so $z[6] refers to the 7th element, which is 7. Note that $z has no element at index 5 (the question asks about $Z[6], not $Z[5]).

Get-ChildItem is the PowerShell CmdLet used to enumerate items in a Windows registry hive (like HKLM: or HKCU:). It's the same CmdLet used for directory listing, but works with registry provider paths. Get-ItemProperty retrieves property values within a registry key, not the keys themselves.

Win32_Share is the WMI class that represents shared resources on a Windows system. Using Get-WMIObject Win32_Share returns all shared folders, including administrative shares (C$, ADMIN$) and user-created shares. Win32_Directory represents directories, Win32_Volume represents volumes, and Win32_SystemPartitions represents disk partitions.

Win32_TimeZone is the correct WMI class for retrieving timezone information from local or remote systems. It returns properties like Bias, DaylightBias, and StandardName. Win32_Desktop relates to user desktop settings, and there is no standard Win32_TimeZoneSetting or Win32_Enviornment (note the typo) class.

System.Diagnostics.EventLog is the .NET Framework class used in PowerShell to access Windows Event Logs. You can use it with Get-EventLog CmdLet or directly via New-Object. EventLogEntry represents individual log entries, and EventLogEntryCollection is a collection of entries - neither is the primary class for accessing log information.

The do-while loop executes the block at least once, then continues while the condition is true. Starting with $i=1, it prints 1, then increments to 2, continuing until $i reaches 6. The output is: 1, 2, 3, 4, 5 (each on a new line via Write-Host). The loop exits when $i becomes 6, which fails the condition $i-le 5.

WebAdministration is the PowerShell Snap-In (module in newer versions) required for IIS 7.0 administrative tasks. It provides CmdLets like Get-Website, New-Website, and Get-WebAppPool. The other options listed are core PowerShell modules, not related to IIS.

All three commands are equivalent. gwmi is an alias for Get-WMIObject. Both '.' and 'localhost' refer to the local computer. Win32_Computersystem has a UserName property that shows the last logged-on user. Since all commands perform the same operation (just with different syntax), 'all of the above' is correct.

The Break statement is used in PowerShell to exit loop constructs like ForEach, For, While, Do-While, and Switch statements. Exit terminates the entire script or console session. Return exits a function or script block. Jump is not a valid PowerShell keyword for loop control.

New-Object with the -Com parameter is used to create COM objects in PowerShell. Excel.Application is the COM ProgID for Microsoft Excel. New-Item creates file system items, and Invoke-Item opens files/folders - neither creates COM objects. Since only A is correct, 'All of the above' (D) is incorrect.