70-216 - Tue 70-216 Question of the Day

Author

Tue 70-216 Question of the Day

wbafrank

2002-02-25, 7:24 pm

And today's poser is ....

Q32. You are the administrator for your company's consultus.com domain. Your network consists of a main office and two branch offices. The branches are connected to the main office by 256 Kbps leased lines. You have a single DNS zone. All DNS servers are at the main office. All servers are Windows 2000 Server computers. Your network is not connected to the Internet.

Users report that response times are extremly slow when they attempt to access resources on the Intranet. When you monitor the network, you discover that DNS name resolution queries are generating heavy traffic across the WAN.

You want to accomplish the following goals:

1. Name resolution traffic across the WAN will be reduced.
2. Response times for name resolution queries will be reduced.
3. Administrative overhead for DNS maintenance will be minimized.
4. Current DNS namespace design will be maintained.

You take the following actions:

1. Create a new secondary DNS zone at each branch.
2. Use the primary zone at the main office as the primary zone for the secondary DNS servers.
3. Configure the client computers to query the local DNS servers.

Which goal or goals are accomplished from your actions? (Choose all that apply)

A. Name resolution traffic across the WAN will be reduced.

B. Response times for name resolution queries will be reduced.

C. Administrative overhead for DNS maintenance will be minimized.

D. Current DNS namespace design will be maintained.

Good Luck .... see you tomorrow for the answer!!

Zaraspook

2002-02-25, 8:01 pm

How about A, B, & D?

merav21

2002-02-25, 8:11 pm

I would also say ABD. Since there are two
new DNS zones, that would instantly eliminate choice C. Since you are implementing secondary zones and configuring
the clients to query their local server, that
would minimize the name resolution traffic
on the WAN links(choice A)and name resolution
performance would be much better for the clients since they would be resolving host names on a local server(choice B).
Finally, since you are only adding secondary
zones and not breaking the branch offices into sub or child domains, you have kept the current namespace intact(choice D). I hope I am right?

Andrew

unreal

2002-02-25, 9:05 pm

My pick are:

A. Name resolution traffic across the WAN will be reduced.

B. Response times for name resolution queries will be reduced.

D. Current DNS namespace design will be maintained.

---------------------------

Don't think C is right, because you need to set up secondary DNS servers on the other 2 branches, seems pretty lot of jobs , not less.

PotatoHead

2002-02-25, 9:14 pm

A, B, and D sound logical!

mrfixit

2002-02-26, 7:22 pm

Also have to say A, B, & D.

wbafrank

2002-02-26, 9:01 pm

quote:
Originally posted by wbafrank
And today's poser is ....

Q32. You are the administrator for your company's consultus.com domain. Your network consists of a main office and two branch offices. The branches are connected to the main office by 256 Kbps leased lines. You have a single DNS zone. All DNS servers are at the main office. All servers are Windows 2000 Server computers. Your network is not connected to the Internet.

Users report that response times are extremly slow when they attempt to access resources on the Intranet. When you monitor the network, you discover that DNS name resolution queries are generating heavy traffic across the WAN.

You want to accomplish the following goals:

1. Name resolution traffic across the WAN will be reduced.
2. Response times for name resolution queries will be reduced.
3. Administrative overhead for DNS maintenance will be minimized.
4. Current DNS namespace design will be maintained.

You take the following actions:

1. Create a new secondary DNS zone at each branch.
2. Use the primary zone at the main office as the primary zone for the secondary DNS servers.
3. Configure the client computers to query the local DNS servers.

Which goal or goals are accomplished from your actions? (Choose all that apply)

A. Name resolution traffic across the WAN will be reduced.
B. Response times for name resolution queries will be reduced.
C. Administrative overhead for DNS maintenance will be minimized.
D. Current DNS namespace design will be maintained.

Good Luck .... see you tomorrow for the answer!!

And the answer is ....

Correct Answers: A, B and D

A DNS zone is the portion of the DNS namespace that a particular DNS server manages. A DNS server is responsible for answering queries about hosts in its zone only. It is the ultimate authority for its zone. A primary zone is the copy of the zone data to which all updates are made. A secondary zone is only a copy of the zone data that is replicated from another server. The server that hosts the primary zone is commonly referred to as the primary server. The server that hosts the secondary zone is referred to as the secondary server.

A secondary server provides fault tolerance, reduces traffic on WANs, and reduces the local traffic on the primary server for the zone. Because the secondary server is a copy of the primary server, it maintains the DNS namespace design.

In this scenario, all goals are met except the "Administrative overhead for DNS maintenance will be minimized" goal. Anytime additional DNS zones or servers are added, administrative overhead increases.

Sponsored Links