DNS 2

Question 1

What are the different methods to change the host name of a server?

Answer 1

Through Server Manager or through PowerShell with the “Rename-Computer (new name)” command.

Question 2

What are the different methods to join a computer to the domain?

Answer 2

Through File Explorer by clicking on the properties of “This PC” or through the Control Panel via Control Panel, System and Security, and System.

Question 3

Within the PowerShell scripting environment, what combination of keys opens a new remote PowerShell tab?

Answer 3

Ctrl+Shift+R

Question 4

Adding Active Directory Domain Services requires a reboot. True or False?

Answer 4

False. Although, a reboot is required upon promoting the server to be a Domain Controller.

Question 5

What downloadable package can be installed on a client to facilitate remote administration of a server?

Answer 5

Remote Server Administration Tools (RSAT)

Question 6

What are two ways to log in as a domain administrator on a client computer?

Answer 6

1. Administrator@domain.com

2. Domain/Administrator

Question 7

What is a CNAME Record Type?

Answer 7

The CNAME record (Canonical Name) displays both the alias and real host FQDNs. Type ID is 5

Question 8

What is a NS Record Type?

Answer 8

The NS (Name Server) record displays the name of the authoritative name server as well as the A record (IPv4 Address) for the name server. Type ID is 2

Question 9

What is a PTR (Pointer) Record Type?

Answer 9

A PTR record, when configured, assists the reverse lookup process by providing the resolution of IP Addresses to FQDNs. Type ID is 12.

Question 10

What is an MX Record Type?

Answer 10

The MX (Mail Exchange) record specifies the mail server responsible for accepting email messages on behalf of the domain name. Type ID is 15

Question 11

What is a SRV Record Type?

Answer 11

The SRV (Service) record is used to identify computers that host specific services. Details of those services include the protocol, priority, weight, TTL, and name. Type ID is 33

Question 12

What is a TXT Record Type?

Answer 12

A TXT (Text) record contains an arbritrary string of text that can be used to provide detailed data. Type ID is 16.

Question 13

Active Directory integrated DNS is not supported on Nano Server. Only a file-based DNS can be implemented. True or False?

Answer 13

True.

Question 14

What are the different layers of a DNS Iterative query tree walk?

Answer 14

1. Root Servers
2. Top level domain servers (.com, .edu, .gov)
3. Authoritative name servers

Question 15

What command allows you to delete root hints records?

Answer 15

Remove-DnsServerRootHint

Question 16

What command allows you to edit existing root hints records?

Answer 16

Set-DnsServerRootHint

Question 17

What command allows you to copy the root hints information from another online DNS server.

Answer 17

Import-DnsServerRootHint

Question 18

What is the process to disable Recursion on a DNS Server?

Answer 18

Through DNS Manager, click on the properties of the DNS Server being configured. In the Advanced tab, check the box that says “Disable Recursion (Also disables forwarders)

Question 19

What are recursion scopes and how do you configure them?

Answer 19

Recursion scopes control the behavior of recursive queries and must be modified in DNS Server policies.

Question 20

How do you configure a DNS Server to only accept internal clients’ recursive queries?

Answer 20

1. Disable recursion on the default recursion scope using the command: Set-DnsServerRecursionScope -Name . -EnableRecursion $False
2. Create new recursion scope for internal clinets using the command: Add-DnsServerRecursionScope -Name “InternalClients” -EnableRecursion $True
3. Create new policy linking the internal interface to the internal clients’ scope using the command: Add-DnsServerQueryResolutionPolicy -Name “RecursionControlPolicy” -Action ALLOW -ApplyOnRecursion -RecursionScope “InternalClients” -ServerInterfaceIP “EQ, 11.11.11.11” (the ip for the interface that internal clients will connect to)

Question 21

What is the difference between a primary and a secondary zone?

Answer 21

The primary zone is read/write while a secondary zone is read only.

Question 22

What is a stub zone?

Answer 22

A zone in which the authoritative name servers are dynamically updated for an external domain.

Question 23

What name is used to run DNS Management from the Run dialogue box?

Answer 23

dnsmgmt.msc

Question 24

What is Split Brain DNS?

Answer 24

When there are two versions of a single zone, one for internal users and one for external users (internet).

Question 25

You can use dcpromo to promote a Domain Controller. True or False?

Answer 25

False. dcpromo cannot be used to promote a server to a domain controller in Windows Server 2012R2 and higher.

Question 26

What are the disadvantages of a root zone being present in the DNS infrastructure?

Answer 26

1. Unable to add a conditional forwarder
2. Unable to add a forwarder
3. Unable to add Root DNS servers to the Root Hints tab

Question 27

What is a SOA record?

Answer 27

Specifies authoritative information about a DNS zone including the primary name server, the email of the domain administrator, the domain serial number, and refresh timers related to the zone

Question 28

Using the dnscmd utility, what command enables round robin on the DNS server (DNS1)?

Answer 28

dnscmd DNS1 /Config /RoundRobin 1

Question 29

What does the “Enable Bind secondaries” setting do within the Advanced tab of the Server properties window?

Answer 29

It allows a UNIX version of DNS to host a secondary zone of a Microsoft DNS server.