Homework answers / question archive / Test Bank, Lesson 8 Configuring DNS Zones Multiple Choice 1) The Domain Name System (DNS) works much like a phone book to associate URLs (names) with what kinds of numbers? a

Test Bank, Lesson 8 Configuring DNS Zones Multiple Choice 1) The Domain Name System (DNS) works much like a phone book to associate URLs (names) with what kinds of numbers? a

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Test Bank, Lesson 8 Configuring DNS Zones

Multiple Choice

1) The Domain Name System (DNS) works much like a phone book to associate URLs (names) with what kinds of numbers?

a. ID numbers

b. World Wide Web numbers

c. domain addresses

d. IP addresses

 

 

2. Which TCP/UDP port does the DNS service use to communicate?

a. 25

b. 53

c. 80

d. 443

 

3. What does the acronym FQDN stand for?

a. File Quota Domain Number

b. Fully Qualified Domain Number

c. Fully Qualified Domain Name

d. Full Query Domain Name

 

 

4. Which one of the following is an example of an FQDN?

a. SERVER1

b. 192.168.1.50

c. sales.microsoft.com

d. C:\WINDOWS\SYSTEM32\DRIVERS\ETC\HOSTS

 

 

5. What type of structure does DNS have?

a. hierarchical distributed

b. flat distributed

c. top-down distributed

d. wheel-spoke distributed

 

6. Which of the following is an example of a top-level domain?

a. .local

b. .net

c. .business

d. microsoft.com

 

 

7. Which of the following is an example of a second-level domain?

a. blah.com

b. .net

c. server1

d. corporate.local

 

8. A specific, individual computer or other network device in a domain is known as what?

a. server

b. entity

c. top-level system

d. host

 

9. What is another term for DNS client?

a. top-level host

b. DNS server

c. DNS resolver

d. DNS query

 

 

10. Which type of DNS zone resolves host names to IP addresses?

a. forward lookup zone

b. reverse lookup zone

c. backward lookup zone

d. null lookup zone

 

11. By using the Active Directory–integrated zone, DNS follows what kind of model?

a. master-slave

b. multi-master

c. primary-secondary

d. forward-reverse

 

 

12. What is one of the primary advantages to using Active Directory to store DNS information?

a. fault tolerance

b. zero configuration

c. low maintenance

d. reverse zone lookups

 

 

13. What is one advantage of subdomains?

a. They allow you to use fewer IP addresses per domain.

b. They offer more efficient network segmentation with inherent VLAN capability.

c. They provide better overall network performance for large networks.

d. They allow you to break up larger domains into smaller, more manageable ones.

 

14. A stub zone is a zone copy that contains only what type of records?

a. host entries

b. subdomain entries

c. necessary resource entries

d. query record entries

 

15. What is the primary advantage of a caching-only DNS server?

a. It requires no maintenance.

b. It provides DNS to a select few DNS clients.

c. It speeds DNS queries by building a DNS request cache.

d. It increases network traffic only on external networks.

 

Short Answer

 

16. What is the definition of a zone transfer?

 

 

17. Name two events that can trigger a zone transfer.

 

 

18. Explain what the following command does: dnscmd dns1.blah.com /enumzones

 

19. Why would you want to know the command-line options for dnscmd.exe in relation to efficient DNS management?

 

20. Explain what happens in an incremental zone transfer (IXFR).

 

21. What are the three types of zone transfers?

 

Best Answer

 

22. Why would you implement a caching-only DNS server on your network?

a. to speed DNS queries and decrease network traffic

b. to avoid installing and configuring a full-blown DNS server

c. to reduce the amount of maintenance for administrators

d. to reduce complexity in a network environment

 

 

23. What is the first and most important step in installing and deploying DNS in your network?

a. setting up Active Directory so that DNS can be integrated into it

b. planning the infrastructure and service requirements

c. configuring the forward and reverse lookup zones correctly

d. splitting the network into subdomains

 

 

24. What is the major reason behind using a forwarder?

a. to decrease client DNS lookups outside your network

b. to improve the efficiency of name resolution for your computers

c. so that your servers only perform recursive queries

d. to justify the use of multiple DNS server layers

 

Build List

 

25. Order the following steps required to configure a DNS server to forward DNS queries to another DNS server.

a. Right-click the DNS server and select Properties.

b. Choose Server Manager > Tools > DNS.

c. In the IP address column, type the IP address of the DNS server that you want to forward DNS queries to and press Enter.

d. Select the Forwarders tab.

e. Click the Edit button.

26. Order the following steps required to configure zone transfer settings.

a. Choose Server Manager > Tools > DNS.

b. Select the Zone Transfers tab.

c. Select the type of zone transfer: To any server, Only to servers listed on the Name Servers, or Only to the following servers.

d. Right-click forward or reverse lookup and click Properties.

e. Select the Allow zone transfers option.

f. Expand the server so that you can see the Forward Lookup Zones and Reverse Lookup Zones folders.

g. Expand DNS Console.

 

27. Order the following steps required to install DNS.

a. Select Role-based or feature-based installation.

b. Click DNS Server.

c. Click Select a server from the server pool and select the name of the server to install DNS to.

d. Choose Server Manager > Manage > Add Roles and Features.

 

Repeated Answer

 

28. By default, zone transfers are disabled. You can choose one of three different zone transfer methods. Which of the following describes the Only to servers listed on the Name Servers tab method?

a. restricts zone transfers to those servers specified in the accompanied list

b. retrieves only resource records that have changed within a zone

c. restricts zone transfers to secondary DNS servers as defined with NS resource records

d. allows a data transfer to any server that asks for a zone transfer (least secure)

 

29. By default, zone transfers are disabled. You can choose one of three different zone transfer methods. Which of the following describes the To any server method?

a. restricts zone transfers to those servers specified in the accompanied list

b. retrieves only resource records that have changed within a zone

c. restricts zone transfers to secondary DNS servers as defined with NS resource records

d. allows a data transfer to any server that asks for a zone transfer (least secure)

 

30. By default, zone transfers are disabled. You can choose one of three different zone transfer methods. Which of the following describes the Only to the following servers method?

a. restricts zone transfers to those servers specified in the accompanied list

b. retrieves only resource records that have changed within a zone

c. restricts zone transfers to secondary DNS servers as defined with NS resource records

d. allows a data transfer to any server that asks for a zone transfer (least secure)