You are designing a DNS strategy to meet the business and technical requirements.
Which two actions should you perform? (Each correct answer presents part of the
solution. Choose two)
A. Create a dynamic reverse lookup zone for each subnet.
B. Create a dynamic forward lookup for each domain.
C. Install caching-only DNS servers in the branch offices.
D. Enable the BIND secondaries option for each DNS server.
Answer: A, B
Explanation:
The scenario states: "UNIX instructors require support of pointer (PTR) resource records for several applications used from their home computers." It also says: "The company anticipates more focus on the online course offerings in the future."
A reverse lookup zone is a database which stores a mapping of IP address to friendly
DNS domain names. In DNS Manager, reverse lookup zones are based on the
in-addr.arpa domain name and typically hold pointer (PTR) resource records..
A forward lookup zone is a name-to-address database that helps computers translate DNS names into IP addresses and provides information about available resources.
Incorrect options:
C: Caching-only servers do not host any zones and are not authoritative for any
particular domain.
D: Windows DNS zone files can contain RRs that can cause problems for BIND
secondaries. These records include those that use an underscore in the host or domain
name and the WINS and WINS-R records. On some versions of BIND, notably BIND
8.0, the presence of these records can cause the zone to fail to load.
QUESTION NO: 2
You need to ensure that only authorized personnel are able to modify student
grades. Which desktop environment or environments should you use? (Choose all that
apply)
A. Windows XP Professional
B. Windows 2000 Professional
C. Windows 98 with Active Directory client installed
D. Windows NT Workstation 4.0 with the latest service pack and Active Directory client installed
Answer: A, B
Explanation:
In order for authentication to occur from a centralized point, you need to apply group policies. The desktop environments that support these features are, Windows XP
Professional and Windows 2000 Professional.
Incorrect options:
C and D: These desktop environments do not support group policies.
QUESTION NO: 3
You need to ensure that the sales representatives are provided with adequate
NetBIOS name resolution.
What should you do?
A. Install WINS on the PDC emulator.
B. Install WINS on servers in Atlanta and Seattle.
C. Enable WINS lookup on the DNS server in Atlanta.
D. Enable WINS on one domain controller in each office.
Answer: D
Explanation:
As the sales representatives are currently using Windows 98 computers, they need
NetBIOS name resolution which is provided for by WINS. In the scenario they also say
that there are sales representatives in all offices, which means domain controllers in each office has to be WINS enabled, because they control all activities on the domain.
QUESTION NO: 4
You are designing a strategy to install the new scheduling application.
Which two actions should you perform? (Each correct answer presents part of the
solution. Choose two)
A. Assign the scheduling application package to the Instructor OU.
B. Publish the scheduling application package to the Instructor OU.
C. Ensure that the scheduling application can install across slow WAN links.
D. Prevent the scheduling application from installing across slow WAN links.
Answer: A, C
Explanation:
The scenario states: "Additionally, instructors are not receiving updated teaching
schedule information on a timely basis. The issue should be addressed by ensuring that our new scheduling program is installed on all instructor computers, including the computers that the instructors use when accessing our network remotely."
All instructor computers form part of the Instructor OU, so by assigning the application to this OU ensures that the package will be installed with minimum administrative effort. The need for ensuring that the scheduling application can install across slow WAN linksis due to the network having connections with different speeds.
QUESTION NO: 5
You are designing a VPN authentication strategy to meet the business and technical
requirements.
What should you do?
A. Implement the RADIUS service in Atlanta.
B. Implement the RADIUS service in each branch office.
C. Configure network address translation (NAT) on all VPN servers.
D. Configure the Connection Manager Administration Kit (CMAK) on the PDC.
Answer: A
Explanation:
Remote Authentication Dial-In User Service (RADIUS) is a widely used protocol that
enables centralized accounting, authentication, and authorization for remote network
access. With RADIUS, you can manage network access for VPN, dial-up, and wireless
networks. Since the online course content is already developed and in use in the Atlanta office, which is also the main office, it is viable to implement RADIUS there.
Incorrect Options:
B: The online course content is already developed and in use in the Atlanta office.
C: Network Address Translation (NAT) is a technology that enables a local-area
net-work (LAN) to use one set of Internet Protocol (IP) addresses for internal traffic and a second set of addresses for external traffic.
D: This is used to Automate VPN client installation.
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