PowerShell在线测试

You're tasked with dynamically invoking functions based on their names stored in an array. Additionally, you're required to filter out functions that have the term "Admin" in their name. Your colleague suggests the following approach:

Assuming no other functions are defined in the session, which of the following will $results contain after executing the script?

You're analyzing a script designed to interact with a remote API. The script fetches data, processes it, and then ensures that all temporary files are deleted. You come across the following code block:

After a successful data fetch, the script occasionally throws the custom error. When this happens, what will be the output and state of the system?

A: The output will display "Network error
B: The output will display "General error
C: The script will exit without any output due to the custom error, but the temporary file will be deleted.
D: The output will display "General error
E: The script will terminate prematurely, not executing the finally block.

A server you are working on has the PowerShell execution policy set to "Restricted", preventing scripts from running. You need to execute a script named "Deploy.ps1". You recall a technique to bypass the execution policy without changing it permanently. Which of the following methods would allow you to run "Deploy.ps1" without permanently altering the execution policy?

A: Set-ExecutionPolicy Unrestricted -Scope Process; .\Deploy.ps1
B: PowerShell -ExecutionPolicy Bypass -File .\Deploy.ps1
C: Invoke-Command -ScriptBlock { .\Deploy.ps1 }
D: Start-Process PowerShell -ArgumentList "-ExecutionPolicy Unrestricted", "-File .\Deploy.ps1"
E: Import-Module .\Deploy.ps1

You're reviewing a script designed to automate server maintenance tasks. One requirement is to log every action and potential error for auditing purposes. The script utilizes Start-Transcript and Stop-Transcript cmdlets to capture the session. Here's a snippet:

After several successful runs, you notice that some logs are missing crucial information regarding errors. Which of the following could be a reason for the missing error details?

A: The -Append parameter is causing overwritten logs.
B: Not all errors are displayed in the console, hence not captured by the transcript.
C: The Stop-Transcript cmdlet needs to be invoked with an -ErrorAction Continue parameter.
D: Transcription only captures standard output, not error streams.
E: The log file path should be specified again in Stop-Transcript.

You're optimizing a script for performance by leveraging runspaces to execute tasks concurrently. Each runspace is supposed to increment a shared counter object. Here's your setup:

You expect the $global:counter to be 5 after all runspaces complete. However, it's not consistently reaching that value. What's the most probable reason for this behavior?

A: Runspaces can't access global variables.
B: The counter increment operation is not thread-safe, leading to race conditions.
C: The runspace pool size is limiting the number of concurrent operations.
D: The $global:counter initialization should be inside the script block.
E: The runspace pool's Close and Dispose methods are prematurely terminating the runspaces.

We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.

For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.

⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 

Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 

⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.