Windows
DNS Server Interview Questions –Part2
12.How do you manually create SRV
records in DNS?
This is on windows server go to run ---> dnsmgmt.msc rightclick on the zone you want to add srv record to and choose "other new record" and choose service location(srv).
This is on windows server go to run ---> dnsmgmt.msc rightclick on the zone you want to add srv record to and choose "other new record" and choose service location(srv).
13.What is the main purpose of SRV
records ?
SRV records are used in locating hosts that provide certain network services.
SRV records are used in locating hosts that provide certain network services.
14. Before installing your first
domain controller in the network, you installed a DNS server and created a
zone, naming it as you would name your AD domain. However, after the
installation of the domain controller, you are unable to locate infrastructure
SRV records anywhere in the zone. What is the most likely cause of this failure
?
The zone you created was not configured to allow dynamic updates. The local interface on the DNS server was not configured to allow dynamic updates.
The zone you created was not configured to allow dynamic updates. The local interface on the DNS server was not configured to allow dynamic updates.
15.Which of the following conditions
must be satisfied to configure dynamic DNS updates for legacy clients ?
The zone to be used for dynamic updates must be configured to allow dynamic updates. The DHCP server must support, and be configured to allow, dynamic updates for legacy clients.
The zone to be used for dynamic updates must be configured to allow dynamic updates. The DHCP server must support, and be configured to allow, dynamic updates for legacy clients.
16.At some point during the name
resolution process, the requesting party received authoritative reply. Which
further actions are likely to be taken after this reply ?
After receiving the authoritative reply, the resolution process is effectively over.
After receiving the authoritative reply, the resolution process is effectively over.
17. Name 3 benefits of using
AD-integrated zones.
Active Directory integrated DNS enables Active Directory storage and replication of DNS zone databases. Windows 2000 DNS server, the DNS server that is included with Windows 2000 Server, accommodates storing zone data in Active Directory.
Active Directory integrated DNS enables Active Directory storage and replication of DNS zone databases. Windows 2000 DNS server, the DNS server that is included with Windows 2000 Server, accommodates storing zone data in Active Directory.
When you configure a computer as a
DNS server, zones are usually stored as text files on name servers that is, all
of the zones required by DNS are stored in a text file on the server computer.
These text files must be
synchronized among DNS name servers by using a system that requires a separate
replication topology and schedule called a zone transfer However, if you use
Active Directory integrated DNS when you configure a domain controller as a DNS
name server, zone data is stored as an Active Directory object and is
replicated as part of domain replication.
18.Your company uses ten domain controllers, three of
which are also used as DNS servers. You have one companywide AD-integrated
zone, which contains several thousand resource records. This zone also allows
dynamic updates, and it is critical to keep this zone up-to-date. Replication
between domain controllers takes up a significant amount of bandwidth. You are
looking to cut bandwidth usage for the purpose of replication. What should you
do?
Change the replication scope to all DNS servers in the domain.
19.You are administering a network connected to the
Internet. Your users complain that everything is slow. Preliminary research of
the problem indicates that it takes a considerable amount of time to resolve
names of resources on the Internet. What is the most likely reason for this?
DNS servers are not caching replies.. Local client computers
are not caching replies… The cache.dns file may have been corrupted on the
server.
20.What are the benefits of using Windows 2003 DNS when
using AD-integrated zones?
If your DNS topology includes Active Directory, use Active
Directory integrated zones. Active Directory integrated zones enable you to
store zone data in the Active Directory database.Zone information about any
primary DNS server within an Active Directory integrated zone is always
replicated.
Because DNS replication is single-master, a primary DNS server
in a standard primary DNS zone can be a single point of failure. In an Active
Directory integrated zone, a primary DNS server cannot be a single point of
failure because Active Directory uses multimaster replication.
Updates that are made to any domain controller are replicated
to all domain controllers and the zone information about any primary DNS server
within an Active Directory integrated zone is always replicated.
Active Directory integrated zones: Enable you to secure zones by using secure dynamic update.
Active Directory integrated zones: Enable you to secure zones by using secure dynamic update.
Provide increased fault tolerance. Every Active Directory
integrated zone can be replicated to all domain controllers within the Active
Directory domain or forest. All DNS servers running on these domain controllers
can act as primary servers for the zone and accept dynamic updates.
Enable replication that propagates changed data only,
compresses replicated data, and reduces network traffic. If you have an Active
Directory infrastructure, you can only use Active Directory integrated zones on
Active Directory domain controllers.If you are using Active Directory
integrated zones, you must decide whether or not to store Active Directory
integrated zones in the application directory partition.
You can combine Active Directory integrated zones and
file-based zones in the same design. For example, if the DNS server that is
authoritative for the private root zone is running on an operating system other
than Windows Server 2003 or Windows 2000, it cannot act as an Active Directory
domain controller. Therefore, you must use file-based zones on that server.
However, you can delegate this zone to any domain controller running either
Windows Server 2003 or Windows 2000.
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