Final answer:
To add a proxy address in active directory using PowerShell, you can utilize the Set-ADUser cmdlet. for hence, option (a) is the correct answer.
Step-by-step explanation:
To add a proxy address in active directory using PowerShell, you can utilize the Set-ADUser cmdlet. By specifying the user identity and the proxy address to be added, you can easily update the user's proxy addresses. The syntax for the command would be Set-ADUser -Identity 'username' -Add {proxyAddresses='proxyaddress'}, where 'username' is the user's identity and 'proxyaddress' is the address you want to add. For example, if you want to add the proxy address 'smtp:proxyexample.com' to the user 'JohnDoe', you would use the command Set-ADUser -Identity 'JohnDoe' -Add {proxyAddresses='smtp:proxyexample.com'}.
The statement is true. The Set-ADUser cmdlet in PowerShell is used to add a proxy address to a user in Active Directory by specifying the user's identity and the new proxy address.
The statement is true. To add a proxy address in Active Directory using PowerShell, you would indeed use the Set-ADUser cmdlet. The proxy address can be added by specifying the user identity (with the -Identity parameter) and adding the proxy address to the existing set of proxy addresses. An example of this command would look like Set-ADUser -Identity "username" -Add {proxyAddresses="smtp:newaddressexample.com"}. It's important to remember that the proxy address needs to be specified in a correct format, for instance, SMTP for the primary address and smtp for secondary addresses.