Question 1

The term ____ can refer to the common practice of assigning an FQDN to a computer or device whose IP address changes from time to time.

Accepted Answer

Dynamic DNS (DDNS) is the practice of automatically updating a DNS record with the current IP address of a computer or device that has a dynamic IP address, such as a cable or DSL modem. This enables users to access devices using a fully-qualified domain name (FQDN) even when the IP address changes. BIND is a popular DNS server software, label is a term used to describe a part of a DNS name, and stub zone is a type of DNS zone used for delegating a portion of a namespace to another name server.

Question 2

At the ____ level, you can make configuration changes that are server specific. You can also perform maintenance tasks for a specific server.

Accepted Answer

DNS server level allows for server specific configuration and maintenance tasks. DNS zone refers to a specific section of the DNS namespace, DNS client refers to a device or application that uses DNS to resolve domain names, and DNS record refers to a specific resource record within a DNS zone.

Question 3

____ allows an administrator to configure load balancing of servers based on DNS name resolution information.

Accepted Answer

Round-robin DNS allows an administrator to configure load balancing of servers based on DNS name resolution information. It works by returning a different IP address for the same hostname each time a DNS request is made, essentially rotating through a list of IP addresses in a round-robin fashion.

Question 4

The ____ log file is set to a default size of 16,384 KB, though you can increase the size in increments of 64 KB.

Accepted Answer

The DNS Events log file is set to a default size of 16,384 KB, which can be increased in increments of 64 KB. The other options (Global, root, and domain) do not relate to log files and are not relevant to the question.

Question 5

A DNS server must support the SRV record type and dynamic update protocol, or Request for Comment (RFC) 2136, to support an AD environment properly.

Accepted Answer

The SRV record type and dynamic update protocol are required for proper functioning of Active Directory (AD) and are defined in RFC 2136. Therefore, a DNS server that does not support these features may not function correctly in an AD environment.

Question 6

AD DS uses a database structure to maintain its objects.

Accepted Answer

AD DS (Active Directory Domain Services) uses a database structure, specifically the Extensible Storage Engine (ESE) database, to store and manage its objects such as users, computers, and groups. The database provides reliability, scalability, and performance for directory operations.

Question 7

____ instructs a DNS server to forward all queries for DNS domains not hosted on a server to another server or servers

Accepted Answer

Standard forwarding is a DNS feature that allows a DNS server to forward all queries for DNS domains that it is not authoritative for to another DNS server so that the query can be resolved. This is useful in environments where DNS is distributed across multiple servers and subnets, and some servers need to forward requests to other servers for resolution. Active Directory is a directory service that is used for authentication and authorization purposes, and does not relate to DNS forwarding. Kerberos is a network authentication protocol used for secure authentication in enterprise environments, and is also unrelated to DNS forwarding. DCDiag is a command-line tool used for diagnosing problems with domain controllers in a Windows domain, and is also not related to DNS forwarding.

Question 8

____ is Microsoft's implementation of a directory services infrastructure.

Accepted Answer

AD DS, or Active Directory Domain Services, is Microsoft's implementation of a directory services infrastructure. It provides centralized authentication and authorization services for Windows-based computers. NetBIOS is a legacy protocol for naming computers on a network, BOOTP is a protocol for booting computers over a network, and Kerberos is a network authentication protocol. While these technologies may be used in conjunction with AD DS, they are not equivalent to it.

Question 9

The ____ is the length of time after a record can refresh that it is determined to be stale and scavenging can begin

Accepted Answer

The refresh interval is the length of time after a record can refresh that it is determined to be stale and scavenging can begin. The DNS zone refers to the portion of the DNS namespace for which a particular DNS server is authoritative. The client interval is not a relevant term in this context. The DNS domain refers to the entire DNS namespace under a particular top-level domain.

Question 10

____ is an excellent command-line tool for performing configuration and maintenance tasks on a DNS server.

Accepted Answer

DNScmd is a command-line tool specifically designed for DNS server management tasks. It allows for tasks such as creating and deleting DNS records, configuring zone transfers, and viewing server configuration settings. Ping, Netsh, and Ipconfig are useful tools for network troubleshooting but are not specifically designed for DNS server management tasks.

Question 11

In ____, the DNS database is stored in AD, and DNS replication occurs through the normal AD replication process.

Accepted Answer

Active Directory-integrated DNS stores the DNS database in AD, and replication occurs through the normal AD replication process. NetBIOS is a legacy naming system, Kerberos is an authentication protocol, and DCDiag is a command-line tool used to diagnose issues with domain controllers.

Question 12

____ instructs a DNS server to forward nonauthoritative queries for a specific nonhosted domain, such as widgetsbiz.net, to a specific DNS server or servers.

Accepted Answer

Conditional forwarding is a DNS feature that instructs a DNS server to forward queries for a specific nonhosted domain to a specific DNS server or servers. This is useful in situations where a DNS server needs to resolve names for a domain that is not hosted locally but can be resolved by another DNS server. Kerberos, WINS, and NetBIOS are not related to DNS forwarding.

Question 13

Dynamic updates are configured at the DNS record level.

Accepted Answer

The answer of Dynamic updates are configured at the DNS...

Question 14

By default, FQDN is configured to provide dynamic updates to clients that support this feature.

Accepted Answer

By default, Fully Qualified Domain Names (FQDNs) do not automatically provide dynamic updates; this feature must be configured and supported by the DNS server and client.

Question 15

The ____ is the length of time records wait before they can refresh their time stamp.

Accepted Answer

The length of time that a record can exist without being refreshed is called the No-refresh interval. During this time, the record cannot be modified. Once the No-refresh interval expires, the Refresh interval begins and the record can be modified. The client interval is the frequency at which clients check for DNS record updates. DNS zone and domain are not applicable to this concept.

Question 16

The ____ contains a subset of the event logs relating specifically to DNS called DNS Events.

Accepted Answer

The Global Logs folder is where Windows stores all event logs, including DNS Events which is a subset of event logs related specifically to DNS. The other options mentioned do not specifically relate to DNS event logs.

Question 17

Every AD domain in Windows Server 2008 has a naming convention based on a DNS domain name.

Accepted Answer

This is true. The naming convention for an Active Directory domain in Windows Server 2008 is based on a DNS domain name. The AD domain name must be a valid DNS name in order to ensure proper name resolution and functionality within the network.

Question 18

A(n) ____ is used by AD DS for storing all of the AD objects and information about your network environment.

Accepted Answer

DC (Domain Controller) is responsible for storing all of the AD objects and information about your network environment.

Answer: C 
 Domain is another correct option as it is the logical grouping of computers and other devices that share a common AD database.

Question 19

Part of the netlogon service used by every client logging onto an Active Directory domain, the ____ runs at logon to provide the client with the location of a DC that can authenticate its requests.

Accepted Answer

The domain controller locator is responsible for locating a domain controller that can authenticate a client's request at logon. The round-robin DNS is a method for balancing traffic across multiple servers and is not specifically related to the netlogon service. The netlogon service is the client-side process responsible for interacting with the domain controller for authentication. The root domain is the top-level domain in a naming hierarchy and is not directly related to the netlogon service.

Question 20

____ are designed to limit the replication traffic across wide area network (WAN) links, as this traffic can affect performance for clients and users.

Accepted Answer

AD DS sites are designed to limit the replication traffic across wide area network (WAN) links. By grouping domain controllers into sites based on their physical location and configuring replication schedules, administrators can reduce the amount of replication traffic that flows across WAN links, which can improve performance for clients and users. Stub zones are used to improve name resolution by delegating a portion of a DNS namespace, domains are used to logically group resources and define administrative boundaries, and PDCs (Primary Domain Controllers) are no longer a role in Active Directory since the introduction of the multi-master domain model.

Quiz 6: Managing and Administering DNS in Windows Server 2008