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| DNS is supported on the Internet by thousands of ______ that maintain all the records necessary for name resolution. |
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Term
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| The backbone of the DNS structure is the concept of _______. |
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| (FQDN) fully qualified domain name |
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Definition
| A(n) _______ represents the entire name for a specific host, or the DNS name, that needs to have a DNS record created. |
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Definition
| A ______ is a name given to a computer, or host, to make connecting to it easier. |
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| A ______ consists of a collection of connected nodes served by an authoritative DNS name server. |
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| _______ are queries where the client requires an answer from its DNS server. |
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| The ______ is the DNS domain that is appended to all unqualified name queries, or a query that contains only a host name. |
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| _______ are a good option for workgroup environments that want to centralize DNS requests through a single server. |
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| ______ provide IP address pointers to top-level DNS servers and are kept current on the computer via Microsoft Update |
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| ______ are servers that are used to resolve names. |
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| ______ are classified in three ways: the information they store, where they are stored, and their read/write status. |
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| Berkeley Internet Name Domain servers (BIND) |
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Definition
| ______ is the industry standard of DNS servers on the Internet and networks running DNS on UNIX/Linux systems. |
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Definition
| A ______ is the zone that is authoritative for a specific domain and its name records. |
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Term
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Definition
| A ______ is a read-only version of the DNS records for a zone. |
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| A ______ is a read-only copy of a zone that obtains its resource records from the name servers that are authoritative for a particular zone. |
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Definition
| ______ allow a DNS client to resolve an FQDN to an IP address. |
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Definition
| _____ performs the opposite action of a forward lookup zone. It maps IP addresses to host names. |
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Term
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Definition
| After a reverse lookup zone is created, _____ are created to map IP addresses to the host name of a node. |
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| Start of Authority record (SOA) |
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Definition
| Listed at the top of the zone file, the ______ record is the starting point for information related to a zone. |
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Term
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Definition
| A _____ identifies a DNS server that is authoritative for a zone. |
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Term
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Definition
| The ______ record provides host name–to–IP address resolution for DNS clients. |
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Term
| Active Directory – integrated DNS [AD DS DNS] |
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Definition
| In ______ the DNS database is stored in AD, and DNS replication occurs through the normal AD replication process. |
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Term
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Definition
| ______ is Microsoft’s implementation of a directory services infrastructure. |
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Term
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Definition
| A(n)_____ is used by AD DS for storing all of the AD objects and information about your network environment. |
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Term
| domain controller locator |
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Definition
| 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. |
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Definition
| _____ are designed to limit the replication traffic across wide area network (WAN) links, as this traffic can affect performance for clients and users. |
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Definition
| ______ instructs a DNS server to forward nonauthoritative queries for a specific nonhosted domain, such as widgetsbiz.net, to a specific DNS server or servers. |
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Definition
| ______ instructs a DNS server to forward all queries for DNS domains not hosted on a server to another server or servers |
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Definition
| 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. |
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Definition
| At the _______ , you can make configuration changes that are server specific. You can also perform maintenance tasks for a specific server. |
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Term
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Definition
| The ______ is the length of time records wait before they can refresh their time stamp. |
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Definition
| The _____ is the length of time after a record can refresh that it is determined to be stale and scavenging can begin |
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Definition
| ______ allows an administrator to configure load balancing of servers based on DNS name resolution information. |
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Definition
| _____ is an excellent command-line tool for performing configuration and maintenance tasks on a DNS server. |
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Definition
| The _____ contains a subset of the event logs relating specifically to DNS called DNS Events. |
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| The _____ log file is set to a default size of 16,384 KB, though you can increase the size in increments of 64 KB. |
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Definition
| The _____ command lists all the vital information about the network connections on a client, including the DNS servers and suffixes. |
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| The ______ command deletes all DNS query responses that have been cached on the local DNS client. |
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| The ______ command displays all the currently cached query responses on a DNS client. |
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| The ______ command forces registration or refresh of a DNS client’s DNS records on the server specified as the Preferred DNS server. |
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Definition
| NetBIOS names are limited to __ characters. |
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Definition
| Prior to the proliferation of DNS usage with Windows 2000, ______ was the naming convention of choice for Windows nodes. |
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Definition
| A(n)______ represents the portion of the namespace to the right of the host name. |
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Term
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Definition
| A computer on the Internet that provides a specific resource is called a(n) _____. |
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Definition
| With a(n) _____, a DNS client requests the best answer that its DNS server can provide. |
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| A(n)______ is a server that has the DNS role installed. |
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Term
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Definition
| When the DNS role is installed on an Internet-connected server, it configures the IP addresses for referral servers for the root domain. These servers are known as _______. |
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Term
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Definition
| _______ automatically creates and delegates the forest root domain DNS zone, or the first domain in your forest. |
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Definition
| A(n) ______ server is similar to a DC in that it holds a directory services database. |
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Definition
| A(n)______ allows a client to update its DNS records through dynamic update to any AD DS DNS DC, and that update is replicated to the other DCs on the network. |
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Term
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Definition
| _______ is a process within a DNS database that uses time stamps to determine when records can update themselves and whether a record has exceeded the length of time records can exist without an update. |
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| _______ allows you to perform detailed queries for DNS information from the command line.It can be used for querying specific records such as SOA or MX. |
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