server chap 3-1 reviews
You want to create a delegation for the zone australia.fabrikam.com. This zone will be hosted on a DNS server with the IP address 10.100.10.10. The DNS server that is authoritative for the zone fabrikam.com is hosted on a computer with the IP address 10.10.10.10. Which of the following steps must you take first? (Choose all that apply.) A. Create the zone australia.fabrikam.com on the computer that hosts the DNS server with the IP address 10.10.10.10. B. Create the zone australia.fabrikam.com on the computer that hosts the DNS server with the IP address 10.100.10.10. C. Create the delegation using the zone fabrikam.com on the computer that hosts the DNS server with the IP address 10.100.10.10. D. Create the delegation using the zone fabrikam.com on the computer that hosts the DNS server with the IP address 10.10.10.10.
Correct answer: B A. Incorrect. You should not create the target zone on the computer on which you are going to perform the delegation, unless that computer will host that zone. In this situation, the target zone will be hosted on the computer with IP address 10.100.10.10. B. Correct. You must create the target zone on the server that will host that zone prior to performing the delegation. C. Incorrect. You must create the target zone before you perform a delegation. D. Incorrect. You must create the target zone before you perform a delegation.
Which of the following network IDs is associated with the reverse lookup zone 15.168.192.inaddr.arpa? A. 192.168.15.0 /16 B. 15.168.192.0 /24 C. 192.168.15.0 /24 D. 15.168.192.0 /24
Correct answer: C A. Incorrect. This network ID would be associated with the 168.192.in-addr.arpa zone. B. Incorrect. This network ID would be associated with the 192.186.15.in-addr.arpa zone. C. Correct. Zone names use octets in reverse. The zero is dropped from the zone name. D. Incorrect. This network ID would be associated with the 15.168.192.0.in-addr.apra zone.
A partner organization frequently alters the IP addresses of its authoritative name servers. Clients in the partner DNS zone also change their DNS records frequently. You want to enable clients in your organizational network to be able to quickly resolve addresses in the partner's DNS zone without worrying that your own DNS server is hosting stale DNS records. Which of the following should you create on your local DNS server to accomplish this goal? (Choose all that apply.) A. Secondary zone B. Conditional forwarder C. Forwarder D. Stub zone
Correct answer: D A. Incorrect. Although configuring a secondary zone will provide a local copy of the partner organization's zone, a better approach is to use a stub zone because the zone updates frequently. This way, clients on your organizational network can quickly locate the authoritative name servers in the partner zone and resolve addresses in that zone accurately. B. Incorrect. Conditional forwarders use static entries for authoritative servers in the target zone. Because the authoritative servers in the target zone often change, a conditional forwarder is quickly out of date. C. Incorrect. Forwarders are used to forward all queries, rather than queries to a specific zone. D. Correct. The best approach is to use a stub zone. This way, clients on your organizational network can quickly locate the authoritative name servers in the partner zone and resolve addresses in that zone accurately.
You want to create a new DNS zone. Only computers that are members of the domain should be able to update the zone. You should not have to perform zone updates manually. Which of the following steps should you take to accomplish this goal? (Choose all that apply.) A. Configure the contoso.com zone as an Active Directory integrated primary. B. Configure the contoso.com zone as a standard primary zone. C. Configure the zone to enable only secure dynamic updates. D. Configure the zone to not enable dynamic updates.
Correct answers: A and C A. Correct. Configuring the zone as Active Directory integrated primary enables you to configure the zone to accept only secure dynamic updates. B. Incorrect. You cannot configure a standard primary zone so that it will accept only secure dynamic updates. A standard primary zone can be configured to accept both secure and insecure dynamic updates. C. Correct. Configuring this setting ensures that only computers that are members of the domain can update the zone. D. Incorrect. If you do not configure the zone to allow dynamic updates, you have to perform zone updates manually.
You want to have all DNS requests for nonlocal addresses go to your ISP's DNS server, except those for hosts located in the margiestravel.com zone. Any requests for hosts located in the margiestravel.com zone should automatically be forwarded to a DNS server with a specific IP address. Which of the following should you configure to accomplish this goal? (Choose all that apply.) A. Stub zone B. Forwarder C. Conditional forwarder D. Secondary zone
Correct answers: B and C A. Incorrect. A stub zone replicates authoritative name server information from a target zone. In this situation, you simply want to forward traffic for hosts in a specific zone to a specific DNS server. B. Correct. You need to configure a forwarder that will forward traffic to your ISP's DNS server. C. Correct. A conditional forwarder will forward all traffic to the margiestravel.com DNS zone, to a DNS server at a specific address. D. Incorrect. You want to forward client request traffic either to your ISP's DNS server or to the margiestravel.com DNS server. Hosting a secondary zone of the margiestravel.com DNS zone does not accomplish this goal.