MCTS 70-642 DNS Configuration & Name Resolution 2

Question 1

What is a DNS stub zone used for?

Accepted Answer

Storing only NS and SOA records of another zone

Answer

A stub zone contains only the SOA, NS, and glue A records needed to contact the authoritative name servers of another zone.

Question 2

Which feature in Windows Server 2008 DNS allows clients to automatically register and update their own DNS records?

Accepted Answer

Dynamic DNS (DDNS)

Answer

Dynamic DNS (DDNS) allows clients and DHCP servers to automatically register, update, and delete DNS resource records.

Question 3

What Windows Server 2008 DNS feature directs queries for specific domains to designated DNS servers?

Accepted Answer

Conditional forwarders

Answer

Conditional forwarders direct DNS queries for specific domain names to specified DNS servers rather than using standard recursion.

Question 4

Which DNS security extension validates DNS responses to prevent cache poisoning attacks?

Accepted Answer

DNSSEC

Answer

DNSSEC (DNS Security Extensions) uses digital signatures to authenticate DNS responses and protect against cache poisoning.

Question 5

In Windows Server 2008, what type of DNS zone contains a read-only copy of zone data received via zone transfer?

Accepted Answer

Secondary zone

Answer

A secondary zone is a read-only copy of a primary zone, populated through zone transfers from the primary DNS server.

MCTS 70-642 Exam Practice Test