2013 Latest MCTS 70-642 Exam Questions 281-285

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QUESTION 1
Your network contains four servers named Server1, Server2, Server3, and Server4 that run Windows
Server 2008 R2. The servers have the Network Policy Server (NPS) role service installed.
You configure a Remote RADIUS Server Group named Group1. Group 1 contains Server2, Server3, and
Server4.
You need to configure load balancing for the members of Group1 to meet the following requirements:
Server1 must send 25 percent of all authentication requests to Server3.
Server1 must send 75 percent of all authentication requests to Server2.
Server1 must only send authentication requests to Server4 if Server2 and Server3 are unavailable.
What should you do from the Network Policy Server console? A. For Server2, set the weight to 75 and the priority to 75,
For Server3, set the weight to 25 and the priority to 25.
For Server4, set the weight to 100 and the priority to 200.
B. For Server2, set the weight to 75 and the priority to 1.
For Server3, set the weight to 25 and the priority to 1.
For Server4, set the weight to 100 and the priority to 100.
C. For Server2, set the weight to 1 and the priority to 75.
For Server3, set the weight to 1 and the priority to 25.
For Server4, set the weight to 100 and the priority to 1.
D. For Server2, set the weight to 75 and the priority to 25.
For Server3, set the weight to 25 and the priority to 75.
For Server4, set the weight to 100 and the priority to 1.
Correct Answer: B
Explanation/Reference:
Correct answer: B
RADIUS server priority and weight
During the NPS proxy configuration process, you can create remote RADIUS server groups and then add RADIUS servers to each group. To configure load balancing, you must have more than one RADIUS server per remote RADIUS server group. While adding group members, or after creating a RADIUS server as a group member, you can access the Add RADIUS server dialog box to configure the following items on the Load Balancing tab:
Priority: Priority specifies the order of importance of the RADIUS server to the NPS proxy server. Priority level must be assigned a value that is an integer, such as 1, 2, or 3. The lower the number, the higher priority the NPS proxy gives to the RADIUS server. For example, if the RADIUS server is assigned the highest priority of 1, the NPS proxy sends connection requests to the RADIUS server first; if servers with priority 1 are not available, NPS then sends connection requests to RADIUS servers with priority 2, and so on. You can assign the same priority to multiple RADIUS servers, and then use the Weight setting to load balance between them.
Weight: NPS uses this Weight setting to determine how many connection requests to send to each group member when the group members have the same priority level. Weight setting must be assigned a value between 1 and 100, and the value represents a percentage of 100 percent. For example, if the remote RADIUS server group contains two members that both have a priority level of 1 and a weight rating of 50, the NPS proxy forwards 50 percent of the connection requests to each RADIUS server.
Advanced settings: These failover settings provide a way for NPS to determine whether the remote RADIUS server is unavailable. If NPS determines that a RADIUS server is unavailable, it can start sending connection requests to other group members. With these settings you can configure the number of seconds that the NPS proxy waits for a response from the RADIUS server before it considers the request
dropped; the maximum number of dropped requests before the NPS proxy identifies the RADIUS server as
unavailable; and the number of seconds that can elapse between requests before the NPS proxy identifies the RADIUS server as unavailable.
Reference: http://technet.microsoft.com/en-us/library/dd197433(v=ws.10).aspx

QUESTION 2
You are planning the network for a branch office. The branch office will contain 100 IPv4 hosts.
You need to recommend a subnet mask for the branch office. The subnet mask must minimize the number of unused IP addresses.
Which subnet mask should you use?
A.
255.255.255.0
B.
255.255.255.128
C.
255.255.0.0
D.
255.255.128.0
Correct Answer: B
Explanation/Reference:
Correct answer(s): B
http://www.pantz.org/software/tcpip/subnetchart.html

QUESTION 3
Your network contains an Active Directory forest. The forest contains a member server named VPN1 that runs Windows Server 2008 R2.
You configure VPN1 as a VPN server.
You need to ensure that only client computers that have windows Update enabled can establish VPN
connections to VPN1.
What should you install on VPN1?
A. Windows Server Update Services (WSUS) B. Network Policy Server (NPS)
C. Health Registration Authority (HRA)
D. Connection Manager Administration Kit (CMAK)
Correct Answer: B
Explanation/Reference:
Correct answer(s): B
http://technet.microsoft.com/en-us/library/cc754378.aspx

QUESTION 4
Your network contains a server that runs Windows Server 2008 R2.
On the server, you run ipconfig as shown in the exhibit. (Click the Exhibit button.)
You need to ensure that the server can access remote TCP/IPv6 hosts. What should you do?
A. Disable Internet Protocol Version 4 (TCP/IPv4). B. Add a default gateway.
C. Modify the subnet mask.
D. Configure an IPv6 address.
Correct Answer: D
Explanation/Reference:
Correct answer(s): D

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