Lesson 4: Configuring and Managing the DNS Server Role

Multiple Choice

1. In a Windows Server 2008 network, the primary means of locating network devices and network services is through the use of ______. a) DHCP b) DNS c) TCP/IP d) BOOTP

2. In what year was DNS introduced? a) 1982 b) 1983 c) 1984 d) 1985

3. Which of the following is not considered a top-level domain? a) .nato b) .int c) .coop d) .com

4. What type of zone might a DNS server host? a) primary b) main c) single label d) forest

5. Which of the following is not a forward or reverse lookup zone type? a) primary b) secondary c) integrated d) stub

6. Which zone hosts a read/write copy of the DNS zone in which resource records are created and managed? a) standard primary zone b) standard secondary zone c) reverse lookup zone d) stub zone

7. Which zone is a copy of a zone that contains only those resource records necessary to identify the authoritative DNS servers for that zone? a) standard primary zone b) standard secondary zone c) reverse lookup zone d) stub zone

8. Which zone enables a host to determine another host’s name based on its IP address? a) standard primary zone b) standard secondary zone c) reverse lookup zone d) stub zone

9. What are two types of Active Directory–integrated zones? a) standard and forward b) standard and secondary c) forward and reverse d) standard and reverse

10. Active Directory–integrated zones follow what type of update model? a) multiple node b) multimaster c) replication d) notification

11. Where are zone transfers initiated? a) primary server b) secondary server c) stub server d) master server

12. Which operating system does not support zone transfers? a) Windows NT b) Windows 2000 c) Windows Server 2003 d) Windows Server 2008

13. DNS zone file resource records are represented as ______. a) binary packets b) DHCP data entries c) form packets d) text entries

14. Which of the following is a 32-bit integer representing the maximum time, in seconds, that a DNS server or client caches this resource record before it is discarded? a) Owner b) Class c) TTL d) Resource Record Data

15. After sending a zone transfer request, which option shows how long (in seconds) the zone’s secondary server waits before sending another request? a) Refresh b) Retry c) Expire d) Minimum TTL

16. What is the length of time that the DNS service waits before retrying a query made during a recursive lookup? a) 3 seconds b) 5 seconds c) 7 seconds d) 15 seconds

17. What is the length of time that the DNS service waits before failing a recursive lookup that has been retried? a) 3 seconds b) 5 seconds c) 7 seconds d) 15 seconds

18. A conditional forwarder in an Active Directory environment can be replicated to any of the following except all ______. a) DNS servers in the forest b) DNS servers in the domain c) domain controllers in the domain d) domain controllers in the forest

19. You can use the DNS console to manually or automatically test DNS servers by submitting all of the following queries except ______. a) iterative b) simple c) recursive d) both B and C

20. Nslookup can be used for which of the following? a) resolving queries b) specifying DNS server c) resolving IP addresses to host names d) all of the above

True/False

21. To conserve disk space, DNS servers store only the most recent updates.

22. The primary DNS server for a zone is not required to perform an incremental zone transfer.

23. For replication of Active Directory–integrated zones, DNS notification is needed.

24. Scavenging is enabled by default.

25. As long as the TTL for a cached resource record does not expire, a DNS server can continue to cache and use the resource record again when answering queries by its clients that match these resource records.

Fill-in-the-Blank

26. A DNS zone stored in Active Directory can take advantage of increased security by modifying its ______access control list.

27. An Active Directoryintegrated ______lookup zone is used for resolving an IP address to a name and is similar to the standard in-addr.arpa zone.

28. A DNS server on a network is designated as a(n) ______by having the other DNS servers in the network forward the queries they cannot resolve locally to that DNS server.

29. ______forwarding enables a DNS server to forward queries to other DNS servers based on the DNS domain names in the queries.

30. The ______command uses the local server to get the address of the server to which it must switch.

31. ______is provided as a built-in command-line tool for managing DNS servers in Windows Server 2008. 32. DNS round ______is a load-balancing mechanism used by DNS servers to share and distribute network resource loads.

33. The process of mapping an IP address to a computer name is called name ______.

34. You can add additional NS records by using DNS Manager or the ______command- line tool.

35. When you are in interactive mode, you can also use the ______command to configure Nslookup options that determine how the resolver carries out queries.

Short Answer

36. What is a hierarchical, tree-structured list of DNS host names, starting at an unnamed root, that is used for all DNS operations?

37. What is a read-only copy of the standard primary DNS zone?

38. What are zones that are stored in Active Directory referred to as?

39. What is the complete or partial transfer of all data in a zone from the primary DNS server hosting the zone to a secondary DNS server hosting a copy of the zone?

40. What is an update to the original DNS protocol specification that permits a means of initiating notification to secondary servers when zone changes occur?

41. What resource record indicates the starting point or original point of authority for information stored in a zone?

42. What type of resource record specifies a server that is willing to act as a mail server for a DNS name?

43. What resource records enable you to specify the location of servers that provide a specific network service over a specific protocol and in a specific domain?