128 Midterm Prep

Question 1

What is the basic syntax of a powershell command?

Answer 1

Verb-Noun

Question 2

What is the use of the Get-Help command?

Answer 2

Get-Help provides valuable information on parameters and cmdlets in PS

Question 3

What are some types of input used in PowerShell?

Answer 3

Strings, Ints, DateTime, Arrays

Question 4

What are strings?

Answer 4

Strings are a series of letters and numbers that may include spaces.

You can define a string by using double quotes.

Example: “This is a string”

Question 5

What are ints?

Answer 5

Ints are integers or whole numbers.

Question 6

What is the DateTime input type?

Answer 6

DateTime is a string that PowerShell can interpet as a date based on your computers regional settings.

Question 7

What is an array?

Answer 7

An array is a collection or list of strings.

You can define an array as a parameter using enpty square brackets.

Example

Param

(

[string[]$variable

)

Question 8

What are some aliases for Get-Help?

Answer 8

help and man are both aliases for Get-Help.

Question 9

What is an alias?

Answer 9

An alias is an alternate, usually shorter name for a cmdlet.

Question 10

What is the difference between cmdlets and commands?

Answer 10

Cmdlets are unique to PowerShell.

Commands are a general term that covers cmdlets, functions, workflows, etc. and are not nessicarily unique to PS.

Question 11

What are positional parameters?

Answer 11

Positional parameters are parameters that can only be passed based on the position they are inputted into a command.

Question 12

Describe the basic anatomy of a PowerShell command.

Answer 12

Using this as an example:

Get-Eventlog -Logname ABC -ComputerName D, E -Verbose

Get-Eventlog is the name of the Cmdlet

• Logname ABC is the parameter naming the event log with the value ABC
• ComputerName -D, E is the second parameter, and is given 2 values seperated by commas
• Verbose is the final switch parameter (meaning it is not given a value.)

Question 13

What are parameters always prefaced by in a command?

Answer 13

Parameters always have a dash (-) at the front.

-ThisIsAParameter

Question 14

What are providers?

Answer 14

Providers are adapters. They are designed to take data storage and make it look like a disk drive.

Question 15

What command is used to retrive all processes currently running on your system?

Answer 15

Get-Process retrieves a list of all processes.

Stop-Process is used to kill a currently running process.

Question 16

What is the pipeline?

Answer 16

The pipeline is the process of connecting multiple commands into eachother?

For example:

Dir | More

You are piping the Dir command into the More command to get more information.

Question 17

How do you pipe two commands together?

Answer 17

You pipe commands together using a pipe (|)

haha

Question 18

What are snapins?

Answer 18

SnapIns are a type of extension for PowerShell. These consist of one or more DLL Files accompanied by an addintional config XML File.

Question 19

What are Modules?

Answer 19

Moduels are self-contained and easy to distribute SnapIns with no advanced registration.

Question 20

What are objects?

Answer 20

Objects represent a single PS Process or service.

Question 21

What are properties of objects?

Answer 21

Properties represent one single piece of information about an object such as a name, ID, service status, etc.

Question 22

What is a collection?

Answer 22

A collection is an set of objects (list, table, etc.)

Question 23

How does powershell use objects?

Answer 23

Objects are used in powershell to represent data. PowerShell is an Object Oriented Programming system.

Question 24

What does the Get-Member command do?

Answer 24

Get-Member (Alias: Gm) Gets all the information about an object.

Question 25

What are the two main parts of Objects in Powershell?

Answer 25

Object properties and Object methods.

Question 26

What are object methods?

Answer 26

Methods are the things that we can do with a specified object.

Question 28

What are the main aspects of a file system?

Answer 28

Files, folders and drives make up file systems.