Lesson 2 Review in Visual Basic .NET

Creation QR Code 2d barcode in Visual Basic .NET Lesson 2 Review

Lesson 2 Review
QR Code JIS X 0510 Generation In Visual Basic .NET
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Recognizing QR Code ISO/IEC18004 In Visual Basic .NET
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Bar Code Creator In VB.NET
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Bar Code Reader In VB.NET
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1. A small office user has a network that consists of four computers. One computer running Windows XP Professional Edition acts as the host and provides ICS ser vices, and the other three computers access the Internet through this host com puter s Internet connection. The administrator of the network wants to protect the network by using Windows Firewall. What must the administrator do A. Purchase and install a router that is compatible with Windows XP and Windows Firewall. B. Upgrade to DSL or a cable modem; Windows Firewall does not work with a dial-up connection. C. Enable Windows Firewall on the host computer. D. Enable Windows Firewall on all four network computers.
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Create QR Code JIS X 0510 In Visual Studio .NET
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Answer C is correct. Enabling Windows Firewall on the host computer is all the administrator needs to do on a network that is already configured and running properly. Answers A and B are
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EAN 128 Encoder In Visual Basic .NET
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Bar Code Generation In Visual Basic .NET
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Make ECC200 In VB.NET
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Making Bar Code In Visual Basic .NET
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Encoding Intelligent Mail In Visual Basic .NET
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Protecting the Computer
DataMatrix Reader In VB.NET
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Bar Code Generator In .NET
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incorrect because routers, DSL, and cable modems are not requirements of Windows Firewall. Answer D is incorrect because Windows Firewall should not be installed on computers that are not directly connected to the Internet.
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2. You are troubleshooting a network connection and need to use the Ping com mand to see if a host is reachable. Which ICMP option should you enable on the host computer A. Allow Incoming Router Request B. Allow Incoming Echo Request C. Allow Outgoing Source Quench D. Allow Redirect
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Code 39 Extended Generation In Java
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Answer B is correct because it allows the host computer to respond to ping requests. Answer A is incorrect because this option passes on information about connected routers and the flow of traffic from the computer. Answer C is incorrect because this option allows the computer to send a message to slow the flow of data. Answer D is incorrect because this option allows routers to redirect data to more favorable routes.
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Printing Barcode In Objective-C
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Lesson 3 Review
Page 10-29
1. An end user reports that she has noticed some bizarre behavior on her computer all morning, and she believes it is getting worse. She reports that the computer is displaying odd messages, that she cannot open her JPEG files, and that some programs will not run. She says she has not opened any e-mail attachments all morn ing and that no one except her has accessed the computer. What is most likely the problem A. The user has a virus on her computer and it is most likely a simple replicating virus. B. The user has a virus on her computer and it is most likely a worm. C. The user has an internal problem that cannot be a virus because the user states that she did not open any e-mail attachments recently. D. The user s operating system needs to be reinstalled; these are common signs of a corrupt installation.
Answer B is correct. These symptoms are common signs of a virus that is a worm. Answer A is incorrect because simple replicating viruses usually replicate only through e-mail and the network. Answer C is incorrect because viruses can travel in ways other than e-mail. Answer D is incorrect because these are not common signs of a corrupt installation; they are common signs of a virus.
2. You work for an Internet service provider (ISP). An end user calls and reports that he has a virus on his computer. He has discovered through his friends and from watching the national news that he has the Blaster worm. He does not have any antivirus software installed. Although it is not your job to assist the user in ridding
Questions and Answers 10-39
the computer of the virus, you want to assist in some way in the time you are allot ted. List four ways the user can get help in ridding the computer of the virus.
Answers may vary, but the following list shows the common ways of helping get rid of viruses:
Visit http://www.microsoft.com/security/antivirus. Visit http://www.microsoft.com/athome/security/protect/windowsxp/firewall.mspx. Visit the website of a manufacturer that produces antivirus software. Purchase antivirus software, install it, and run the virus removal tools. Visit a virus removal newsgroup. Visit the Microsoft Knowledge Base, http://support.microsoft.com/search/.
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