Which three cmdlets should you run?

You have a server named DNS1 that runs Windows Server 2012 R2.
You discover that the DNS resolution is slow when users try to access the company intranet
home page by using the URL http://companyhome.
You need to provide single-label name resolution for CompanyHome that is not dependent
on the suffix search order.
Which three cmdlets should you run? (Each correct answer presents part of the solution.
Choose three.)

A.
Add-DnsServerPrimaryZone

B.
Add-DnsServerResourceRecordCName

C.
Set-DnsServerDsSetting

D.
Set-DnsServerGlobalNameZone

E.
Set-DnsServerEDns

F.
Add-DnsServerDirectory Partition

Explanation:
*The Add-DnsServerPrimaryZone cmdlet adds a specified primary zone on a Domain Name
System (DNS) server.
* The Add-DnsServerResourceRecordCName cmdlet adds a canonical name (CNAME)
resource record to a specified Domain Name System (DNS) zone. A CNAME record allows
you to use more than one resource record to refer to a single host
*The Set-DnsServerGlobalNameZone cmdlet enables or disables single-label Domain Name
System (DNS) queries. It also changes configuration settings for a GlobalNames zone.
The GlobalNames zone supports short, easy-to-use names instead of fully qualified domain
names (FQDNs) without using Windows Internet Name Service (WINS) technology. For
instance, DNS can query SarahJonesDesktop instead of SarahJonesDesktop.contoso.com.