function Test-KnownWCFServicesResolvable {
<#
.SYNOPSIS
    Test that a set of WCF services are resolvable

.PARAMETER Services
    This should be an array of one or more services with a property set minimum of:
      * Name
      * WebAppName
      * Endpoint

    The Name is assumed to be the value used as the hostname for purposes of service resolution for a given WebAppName.

.PARAMETER KnownSkipWebApps
    List of apps that we know we want to skip testing for.
    Principally useful for ExceptionService, SymConnectMultiplexer, etc
#>
    [CmdletBinding()]
    [OutputType([void])]
    param (
        [Parameter(Mandatory = $false)]
        [ValidateNotNullOrEmpty()]
        [object[]]$Services = (Get-KnownWCFServices),
        [Parameter(Mandatory = $false)]
        [string[]]$KnownSkipWebApps = (Get-KnownSkipWebAppNames)
    )

    $logLead = Get-LogLeadName

    $failed = $false
    $failedCount = 0

    # Skip checking the ones that we know we don't need to check
    foreach ($service in $Services.Where({$_.WebAppName -notin $KnownSkipWebApps})) {
        $hostnameResolution = Resolve-DNSName -Name $service.Name -ErrorAction SilentlyContinue
        if ($null -eq $hostnameResolution) {
            # Don't stop for the first one, log 'em all
            Write-Error "$logLead : Could not resolve hostname for $($service.Name) used by the WCF service $($service.WebAppName)" -ErrorAction Continue # Ensure we hit the ugly red text but don't stop even if EAP is stop
            $failed = $true
            $failedCount += 1
        }
    }

    if ($failed) {
        if (($Services.Count -gt 1) -and ($failedCount -eq $Services.Count)) {
            Write-Warning "$logLead : All of the services appear to have failed, is the hosts file corrupt?"
        }
        # Downstream tasks expect us to throw so they will not continue
        # Ex: Install_Packages -> Install-Server
        throw "Could not successfully resolve hostnames on $($env:ComputerName)"
    }

    Write-Host "$logLead : All services successfully tested for hostname resolution $($Services.WebAppName -join ',')"
}