Microsoft ExactPapers 70-270 v2008-05-09 by BRAINIAC 105q.vce

Microsoft ExactPapers 70-270 v2008-05-09 by BRAINIAC 105q.vce

QUESTION 1:
You work as the network administrator at CertKiller.com. The CertKiller.com
network consists of a single Active Directory forest with multiple domains. All
servers on the CertKiller.com network run Windows Server 2003 and all client

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computers run Windows XP Professional. The CertKiller.com network consists of an
internal network and a perimeter network.
You are currently planning a DNS namespace design for CertKiller.com. You plan to
deploy a new domain controller named Certkiller -DC02 and a server named
Certkiller -SR03 respectively, and enable the DNS Server service on the both
computers. You want to configure Certkiller -DC02 to host the private root zone
for the internal network. You plan to locate Certkiller -SR03 in the perimeter
network. You want to configure Certkiller -SR03 to host the external zone for the
registered Internet DNS domain name of CertKiller.com.
Each internal zone will have one internal domain. You want to host each internal
zone on a separate DNS server. You need to ensure that all users on the internal
network can resolve host names on the internal network and on the Internet. You
configure proxy server settings on all computers hosted on the internal network to
point to your ISA Server.
What else should you do? (Each correct answer presents part of the solution.
Choose TWO.)
A. One the internal DNS servers, configure root hints to point to Certkiller -DC02.
B. One Certkiller -DC02, configure root hints to the Internet root DNS servers.
C. Configure Certkiller -DC02 to send all queries for Internet computers to
Certkiller -SR03.
D. On all computers on the CertKiller.com network, include the internal DNS namespace
in the name exclusion list.
Answer: A, D
Explanation:
The DNS server of a domain provides authoritative replies to queries for that
particular domain DNS server is authoritative for the contiguous portion of the
DNS namespace over which it reside. When a client sends a recursive query to a
DNS server, the DNS server has to either return the resource record containing the
IP address that is associated with the host name that was requested or an error
message can also be returned to the client, stating that the host name or domain
does not exist. When the DNS server does not find the queried name in its zone
information, it starts querying other DNS servers. The error is only returned to the
client when it cannot obtain the required information from any of the other DNS
servers.
When forward queries are issued, a resolver requests the IP address for a host name and
the forward lookup is sent to the DNS server. The DNS server searches for an A type
resource record that is associated with the host name in the request. If the DNS server
finds a matching A type resource record, the IP address is returned to the client. If the
DNS server does not find a match, it proceeds to query the other DNS servers.
Incorrect answers:
B, C: Because Certkiller -DC02 hosts the root DNS zone, you cannot configure
forwarding or root hints on Certkiller -DC02.

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QUESTION 2:
You work as the network administrator at CertKiller.com. The CertKiller.com
network consists of a single Active Directory domain named Certkiller .com. All
servers on the CertKiller.com network run Windows Server 2003 and all client
computers run Windows XP Professional.
A Windows Server 2003 computer named Certkiller -DC03 is configured as a DNS
server and hosts an Active Directory-integrated DNS zone for the Certkiller .com
domain. Another DNS server named Certkiller -SR15 is a DNS server that hosts a
primary zone named sales. Certkiller .com and a secondary zone for the Certkiller .com
domain. Certkiller -DC03 hosts a secondary zone for sales. Certkiller .com.
After monitoring zone replication traffic, you notice that zone transfer traffic for
the sales. Certkiller .com is taguide place far too frequently. You want
sales. Certkiller .com zone data traffic between Certkiller -SR15 and
Certkiller -DC03 to take place at five hour intervals. You also want retries to
occur hourly when the initial zone transfer attempt fails.
What should you do? (Each correct answer presents part of the solution. Choose
TWO.)
A. Access the Certkiller .com zone properties on Certkiller -DC03.
On the Start of Authority (SOA) tab, set the Refresh interval setting to be 5 hours.
B. Access the sales. Certkiller .com zone properties on Certkiller -SR15.
On the Start of Authority (SOA) tab, set the Refresh interval setting to be 5 hours.
C. Access the sales. Certkiller .com zone properties on Certkiller -SR15.
On the Start of Authority (SOA) tab, set the Retry interval setting to be 1 hour.
D. Access the Certkiller .com zone properties on Certkiller -DC03.
On the Start of Authority (SOA) tab, set the Retry interval setting to be 1 hour.
Answer: B, C
Explanation: The question states that you want sales. Certkiller .com zone replication
to occur less frequently. You therefore have to configure the sales. Certkiller .com zone
properties on Certkiller -SR15. Certkiller -SR15 is the primary DNS server for
the sales. Certkiller .com zone. This is where you have to define zone replication
configuration settings for the zone.
Incorrect answers:
A, D: Nothing is mentioned about changing the Certkiller .com zone replication properties.
QUESTION 3:
You work as the network administrator at Certkiller .com. The Certkiller .com
network consists of a single Active Directory domain named Certkiller .com. All
servers on the Certkiller .com network run Windows Server 2003. Half the client
computers run Windows XP Professional and the rest run Windows 2000

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Professional or Windows NT 4.0 Workstation. The Certkiller .com network consists
of an internal network and a perimeter network.
The Certkiller .com network contains an internal DNS server and an external DNS
server. The external DNS server stores resource records for Certkiller .com’s mail
and Web servers. The mail and Web servers are assigned static IP addresses.
You are instructed to improve name resolution performance for all Internet users.
You install several secondary DNS servers on the perimeter network. One of your
objectives is to minimize bandwidth for all zone transfer SOA requests sent by all
secondary DNS servers. You want to achieve your objective while still ensuring that
authorized secondary DNS servers can still receive copies of the primary zone file.
What configuration should you perform?
A. On your external DNS server, increase the Refresh interval’s value in the SOA record.
Ensure that the notify lists include the authorized secondary DNS servers.
B. On your external DNS server, increase the time to live value for the SOA record.
C. On your external DNS server, decrease the time to live value for the SOA record.
D. On your external DNS server, decrease the Refresh interval’s value in the SOA record.
Ensure that the notify lists include the authorized secondary DNS servers.
Answer: A
Explanation: A DNS zone transfer is initiated when a secondary DNS server sends a
request for its zone file to be updated. To ensure that authorized DNS servers can
receive copies of the primary zone file, configure the notify lists to include the
secondary DNS servers. Increasing the Refresh interval’s value in the SOA record
will cause the secondary DNS servers to request zone transfer updates less
frequently.
Incorrect answers:
B, C: The time to live value for the SOA record has no impact on the frequency at which
zone transfer updates occur.
D: While you should ensure that the notify lists include the secondary DNS servers,
decreasing the Refresh interval’s value in the SOA record will cause the secondary
DNS servers to request zone transfer updates more frequently

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