To create an Azure DNS record using PowerShell, you need to create the RecordConfig and store it within a variable by running the following cmdlet:

$RecordConfig = New-AzureRmDnsRecordConfig -IPv4Address "192.168.1.55"

Then, you can create the record by running the following cmdlet:

New-AzureRmDnsRecordSet -Name www -RecordType A -ZoneName Gamezakhana.com -ResourceGroupName PacktPub -Ttl 3600 -DnsRecords $RecordConfig

Remember that the TTL is expressed in seconds.