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Microsoft 70-643 Exam

Practice Exam 70-643
Product Description:
Exam Number/Code: 70-643
Exam Name: TS

“TS ‘s TS: Windows Server 2008 Applications Infrastructure, Configuring”, also known as 70-643 exam, is a Microsoft certification.
Preparing for the 70-643 exam? Searching 70-643 Test Questions, 70-643 Practice Exam, 70-643 Dumps?
With the complete collection of questions and answers, TestInside has assembled to take you through 87 questions to your 70-643 Exam preparation. In the 70-643 exam resources, you will cover every field and category in TS helping to ready you for your successful Microsoft Certification.

TS: Windows Server 2008 Applications Infrastructure, Configuring
Test Q&A Updated Price
70-643 87: Q&A 2008-6-10 USD: 98.00

QUESTION 1
You create a strongly named serviced component. The component uses a third-party .NET assembly
named Certkiller .Encryptor.dll to perform encryption and decryption. Certkiller .Encryptor.dll is
registered in the global assembly cache. You deploy the services component and

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Certkiller .Encryptor.dll to a production computer.
A new version of Certkiller .Encryptor.dll becomes available. You remove the original version and
install the new version on the production computer. The services component throws a
System.TypeLoadException when it attempts to use Certkiller .Encryptor.dll.
You need to correct this problem.
What should you do?
A. Unregister and re-register the services component in the global assembly cache.
B. Use the Strong Name tool (Sn.exe) to create a new key file for the services component.
C. Create a configuration file named Dllhosts.exe config to redirect the services component to the new
version of Certkiller .Encryptor.dll.
D. Create a publisher policy assembly for Certkiller .Encryptor.dll and register the assembly in the global
assembly cache.
Answer: D
Explanation: Vendors of assemblies can state that applications should use a newer version of an assembly
by including a publisher policy file with the upgraded assembly. The publisher policy file specifies assembly
redirection and code base settings, and uses the same format as an application configuration file. The
publisher policy file is compiled into an assembly and placed in the global assembly cache.
There are three steps involved in creating a publisher policy:
1. Create a publisher policy file.
2. Create a publisher policy assembly.
3. Add the publisher policy assembly to the global assembly cache.
Reference: .NET Framework Developer’s Guide, Creating a Publisher Policy File
QUESTION 2
You are using Visual Studio .NET to develop an application that uses a non-COM DLL named
CertK Functions.dll. This DLL is written in unmanaged code.
One function in the DLL performs encryption. This function takes two arguments. One argument is
the string to be encrypted. The other argument is the resulting encrypted string. The function returns
an integer that is an error code.
You must ensure that your application uses this function correctly.
Which code segment should you use?
A. [DllImport(" CertK Functions.dll")]
public static extern int encrypt(string input, StringBuilder
output);
string input = “Stuff to encrypt”;
StringBuilder output = new StringBuilder(500);
int errCode = encrypt(input, output);
B. [DllImport(" CertK Functions.dll")]
public static extern int encrypt(string input, string output);
string input = “stuff to encrypt”;
StringBuilder output = new StringBuilder(500);

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int errCode = encrypt(input, output.ToString();
C. [DllImport(" CertK Functions.dll")] public static extern int
encrypt(string input, string output);
string input = “stuff to encrypt”;
string output = ” “; int errCode = encrypt(input, output);
D. [DllImport(" CertK Functions.dll")]
public static extern int encrypt(string input, ref string output);
string input = “stuff to encrypt”;
string output = null;
int errCode = encrypt(input, ref output);
Answer: D
The only way to get the resulting encrypted string is to pass the second parameter by reference.
QUESTION 3
You are creating an XML Web service named LegalService. This service exposes two Web methods
named SendMessage and ReceiveMessage.
SendMessage is used to send highly confidential messages to its customers. ReceiveMessage is used to
receive highly confidential messages from its customers and to process these messages for future use.
You need to ensure that these messages cannot be intercepted and viewed by anyone other than
LegalService and the customers who access LegalService.
Which security mechanism should you use?
A. SSL
B. Authorization
C. Authentication
D. Impersonation
Answer: A
Explanation: Secure Sockets Layer (SSL) meets the requirements of this scenario. SSL encrypts data,
which protects the data from being viewed from outside parties.
Incorrect Answers
B: Authorization is used to assign permissions and rights to users. It is not used to secure transmitted
data.
C: Authentication is used to identify users. It is not enough to secure the data transmitted.
D: Impersonation is the ability of a to execute in a security context other than from that of the original
user-It would not help protecting the transmitted data however.

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