vb.net generate data matrix A. Add Network Monitor driver to the interface on your client computer and create a in VS .NET

Creation Code 128 Code Set C in VS .NET A. Add Network Monitor driver to the interface on your client computer and create a

A. Add Network Monitor driver to the interface on your client computer and create a
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capture filter to capture traffic between any client computer and App1.
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B. Install Network Monitor tools on App1. Create a capture filter to capture traffic that
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is generated by the client/server application.
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Maintaining a Network Infrastructure (5.0)
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C. Use the Performance Logs And Alerts tool on your client computer to create an
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alert that fires when network use exceeds 80 percent.
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D. Use the Performance Logs And Alerts tool on App1 to create an alert that fires
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when network use exceeds 80 percent.
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Which System Monitor counter can help to detect an insufficient bandwidth problem
A. Network Interface: Current Bandwidth
B. Network Interface: Output Queue length
C. Network Interface: Bytes Total/sec
D. Network Interface: Packets/sec
Objective 5.1: Monitor Network Traffic
17-9
Objective 5.1 Answers 1.
Correct Answers: B
A. Incorrect: You install Network Monitor tools from Add Or Remove Programs in
Control Panel.
B. Correct: In this case, the Remote Router Properties dialog box is open. You need
to close the dialog box, and click Retry.
C. Incorrect: You can install Network Monitor tools on any server running
Windows Server 2003.
D. Incorrect: Network Monitor Driver (not tools) is installed on a network interface
as a protocol.
Correct Answers: D
A. Incorrect: ARP frames contain either forward ARP or reverse ARP (RARP) traffic.
The correct protocol specification is ARP_RARP.
B. Incorrect: ARP_RARP is the correct protocol, but this filter displays the ARP traf
fic between Dom1 and all participating clients.
C. Incorrect: This answer is incorrect for the reasons given in the explanations for
both answer A and answer B.
D. Correct: This filter displays both forward and reverse ARP network traffic
between Dom1 and Client26.
Correct Answers: B and C
A. Incorrect: The frame size needs to be decreased, not increased. B. Correct: The buffer size needs to be increased from its default of 1 MB. If this is
done, the buffer is less likely to become full, and data will not be overwritten.
C. Correct: The frame size needs to be decreased from its default value of 65,472
bytes. More frames can then be stored before the buffer becomes full and data is overwritten.
D. Incorrect: The buffer size needs to be increased, not decreased.
Correct Answers: B
A. Incorrect: You need Network Monitor tools, not driver. The version of Network
Monitor tools that is supplied with Windows Server 2003 cannot capture traffic between any computers on a network. It can capture traffic only between itself and other computers.
17-10
Maintaining a Network Infrastructure (5.0)
B. Correct: This solution captures all the traffic between App1 and client computers
that is generated by the client/server applications. You can use the source and des tination addresses contained in this traffic to identify the client computer.
C. Incorrect: Performance Logs And Alerts indicates the volume of network traffic
through an interface. It cannot analyze the content of this traffic.
D. Incorrect: This answer is incorrect for the reason given in the explanation for
answer C.
Correct Answers: C
A. Incorrect: Current Bandwidth usually shows the theoretical bandwidth of the
connection. It does not indicate how much of this bandwidth is being used.
B. Incorrect: Output Queue length should be zero. If it is consistently greater than
two, the NIC should be upgraded. This counter indicates a problem with the NIC rather than with the network bandwidth.
C. Correct: Bytes Total/sec shows the data transfer rate on a given network inter-
face. If the transfer rate is consistently close to the network s nominal capacity, the communication link should be upgraded to one with a higher bandwidth.
D. Incorrect: Packets/sec cannot provide an accurate estimate of the portion of
bandwidth that is being used because packets can be of different lengths.
Objective 5.2: Troubleshoot Connectivity to the Internet 17-11
Objective 5.2
Troubleshoot Connectivity to the Internet
This objective requires that you know how to troubleshoot Internet connectivity prob lems. You need to know how to properly configure Internet connectivity and check for faults and misconfigurations. Many intranets use private networks, so you need to know how to configure NAT and Internet Connection Sharing (ICS). You need to know how a DHCP allocator works and how TCP and UDP use port numbers. You need to know which protocols are used for Internet connectivity and how to filter traffic. You are unlikely to be asked detailed questions about Microsoft Proxy server or about firewall configuration. However, you should be aware of the functionality of these devices and the part they play in Internet communications. You need to know how your intranet can be attacked from the Internet and the precautions you should take to secure your network.
17-12
Maintaining a Network Infrastructure (5.0)
Objective 5.2 Questions 1.
Margie s Travel is a small office configured as a peer-to-peer network. The network contains one multihomed server running Windows Server 2003, Mag1, and 12 clients running Windows XP Professional. Mag1 connects to the Internet via a dial-up connec tion to an ISP. The internal interface address of Mag1 is 10.10.10.1. Margie s Travel wants all client computers to be able to connect to the Internet. You are asked to set this up. You do the following:
Install and enable the Routing And Remote Access service on Mag1. Ensure that Mag1 has no default gateway and a subnet mask of 255.255.255.0. Mag1 is already configured with the IP address of 10.10.10.1 on its private interface. Enable routing on Mag1 s dial-up port. Create a demand-dial interface that connects to the ISP. Create a default static route that uses the public Internet interface. Add the NAT routing protocol. Add the private and public interfaces on Mag1 to NAT, choosing the appropriate setting for each on the NAT/Basic Firewall tab. Enable network address translation and name resolution. Configure the client computer default gateways with the public IP address that is supplied by the ISP.
The clients cannot connect to the Internet. You review your procedure. What do you need to change
A. Create the demand-dial interface on the local area connection.
B. Configure the public NAT interface with an address pool of 10.10.10.1.
C. Change the default gateway IP address on the clients to 10.10.10.1. D. Enable Basic Firewall on the public interface.
You administer a Windows Server 2003 domain for Litware, Inc. in Denver, Colorado. The network consists of 150 clients running Windows XP Professional, 2 domain controllers running Windows Server 2003, 1 DHCP server running Windows Server 2003, 2 file and print servers running Windows Server 2003, and 1 router running Windows Server 2003 called Denver6 that is connected to an ISP through a permanent broadband link. All the client computers are configured with private addresses through DHCP. All the servers are configured statically.
Objective 5.2: Troubleshoot Connectivity to the Internet 17-13
Litware s ISP has allocated the public IP addresses 208.147.66.16 through 208.147.66.23. You install NAT and add the public and private interfaces. Internet connectivity is achieved, but users report that it can be quite slow. You use Network Monitor on Denver1 s public interface and discover that only two of the public IP addresses are being used. How do you ensure that all eight addresses are used
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