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Module 3: Implement Windows Server DNS > Unit: work with DNS zones and records
Fichas del conjunto (27)
- 1What is a DNS zone?A specific portion of the DNS namespace.
A zone contains resource records, and it responds to queries for records in that namespace. - 2In which 2 ways can a DNS server store it's zones?- In a file
- In AD DS database - 3On a DNS servers, which is also an AD DS domain controller, can you store the DNS database in a file as well?No, when the DNS server is also a domain controller, you can only store the database in AD DS.
- 4What are some limitations when storing the DNS zone in a file?- The file is in a local folder on the server
- Only one copy of the file is writable
- Other copies, which are read-only, are known as seconday zones - 5Describe a forward lookup zoneThis zone hosts the most common DNS resource records, A-records.
An A-record is used to resolve a hostname to an IP address. - 6When using AD DS in your network, what is created in DNS?A forward lookup zone that corresponds to the AD DS domain name.
AD DS stores resource records in DNS that are used to locate network services. - 7Should you store DNS records regarding AD DS resource information in a public or private DNS zone?In a private DNS zone.
This information should never be stored in a public DNS zone. - 8When using Windows Server DNS, how can you make a DNS zone accessible for internet facing clients?Host the DNS zone on a server that is accessible on the internet.
- 9Describe reverse lookup zonesReverse lookup zones are used to resolve IP addresses to names
- 10Which reverse lookup zones should you create?You should create reverse lookup zones for all the internal IP address ranges that you use
- 11What is the difference between primary and secondary zones?A primary zone is used to process changes, and is therefore writable.
A secondary zone is a read-only copy of a primary zone. - 12In which 2 places can you store a primary DNS zone?- Active Directory
- File - 13How is a DNS zone that is stored in Active Directory called?An Active Directory-Integrated zone
- 14What is a feature that is enabled by using an Active Directory-Integrated zone?Secure Dynamic Updates
- 15What are DNS records?The resource records that are stored in DNS zones
- 16Which 2 records do forward and reverse lookup zones contain?- Start of Authority (SOA)
- Name Server (NS) - 17Describe the Start of Authority (SOA) recordContains information for the zone, including:
- The name of the primary DNS server
- Synchronization interval
There is one SOA record per zone - 18Describe the Name Server (NS) recordIdentifies a DNS server for the domain.
There is a NS record for each DNS server that has a copy of the zone. - 19Describe the Host (A) recordResolves a name to an IPv4 address
- 20Describe the Host (AAAA) recordResolves a name to an IPv6 address
- 21Describe the Alias (CNAME) recordUsed to resolve a name to another name
- 22Describe the Service Location (SRV) recordUsed by applications to identify the locations of a server that hosts a certain application.
Example: AD DS uses SRV records to identify the location of Domain Controllers - 23Describe the Mail Exchanger (MX) recordUsed to identify mail servers for a domain
- 24Describe the Text (TXT) recordUsed to store a string in DNS
- 25Describe a Pointer (PTR) recordUsed to resolve an IP address to a name.
Example: resolve 172.168.35.105 to srv-01.contoso.com
The PTR record would be named 105 and would be stored in the reverse lookup zone 35.168.172.in-addr.arpa - 26What is Time To Live in DNS?All resource records are configured with a TTL.
This defines the amount of time that a client is allowed to cache a certain record. - 27When troubleshooting DNS, what are 2 common actions to take?- Clear DNS cache on client
- Clear DNS cache on Domain Controller
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- El usuario ha eliminado su información de asignaturas Fichas sobre Module 3: Implement Windows Server DNS > Unit: work with DNS zones and records, creado por Usuario eliminado el 16/10/2022.
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- Creado por Rick Schoenman · 15 oct 2022
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