DNS
Zones
Transfers
Records
Fault Tolerance
100
The major benefit of using Active Directory to store DNS.
What is fault tolerance?
100
By using a forwarder, you control name resolution queries and traffic, which will provide this benefit.
What is improve the efficiency of name resolution for the computers in your network?
100
This happens during an incremental zone transfer.
What is transfers only zone records that have changed?
100
If you want to use PTR DNS records, you must create this.
What is a reverse lookup zone?
100
This DNS record maps a DNS domain name to a specified list of host computers that offer a specific type of service, such as Active Directory domain controllers.
What is a Service Record (SRV)?
200
These allow you to break up larger domains into smaller, more manageable domains.
What are subdomains?
200
Zone transfers are this.
What are the complete or partial transfer of DNS data from a zone on a DNS server to another DNS server?
200
List three types of zone transfers.
What is full, incremental, and DNS Notify?
200
This value defines the default time a resource record remains in a DNS cache after a DNS query has retrieved a record. If a resource record has its own TTL value, that value is used instead of the TTL defined in the SOA record.
What is Time to Live (TTL)?
200
The A record maps a domain/host name to an IPv4 address; the AAAA record does this.
What is maps a domain/host name to an IPv6 address?
300
This zone is a copy of a zone that contains only necessary resource records—Start of Authority (SOA), Name Server (NS), and Address/Host (A) record—in the master zone and acts as a pointer to the authoritative name server.
What is a stub zone?
300
These events can trigger a zone transfer.
What are the initial transfer occurs when a secondary zone is created, the zone refresh interval expires, the DNS Server service is started at the secondary server, and the master server notifies the secondary server that changes have been made to a zone?
300
A Canonical Name (CNAME) is also known by this name.
What is an alias?
300
This is a DNS balancing mechanism that distributes network load among multiple servers by rotating resource records retrieved from a DNS server.
What is Round Robin?
300
This command initiates manual dynamic registration for the DNS names and IP addresses configured on a computer.
What is ipconfig /registerdns ?
400
This DNS server receives client requests, and as the DNS servers fulfill DNS queries, the server adds the information to its cache.
What is a caching-only server?
400
The command - dnscmd dns1.blah.com /enumzones - does this.
What is displays a list of zones on a DNS server?
400
This DNS record specifies authoritative information about a DNS zone, including the primary name server, the e-mail of the domain administrator, the domain serial number, and the expiration and reload timers of the zone.
What is a Start of Authority (SOA) record?
400
Use this command to verify local DNS settings.
What is ipconfig /all?
400
This command flushes and resets the contents of the DNS client resolver cache.
What is ipconfig /flushdns ?
500
As with any server role, before you deploy DNS you need to do this.
What is plan your infrastructure?
500
The dnscmd.exe command allows you to do these things.
What is to display and change properties of the DNS servers, zones, and resource records?
500
You have a web server named Charley.clabs.com. You want to have requests directed to www.clabs.com. To accomplish this, you create this DNS record.
What is a CNAME record?
500
This record specifies authoritative information about a DNS zone, including the domain serial number.
What is the Start of Authority (SOA) record?
500
This is the purpose of a priority number in MX records.
What is For fault tolerance, you can designate a second mail server. Therefore, if the primary mail server is not available, the email can be sent to the secondary server?
M
e
n
u