word ean 13

word 2010 ean 13

barcode font in word 2007, download code 128 font for word, word code 39 barcode font download, data matrix code word placement, word 2013 ean 128, word 2010 ean 13, word pdf 417, word 2007 qr code generator, upc barcode font for microsoft word

To protect the privacy and integrity of the data that your applications store, you can use cryptography. The .NET Framework provides classes for several different types of cryptography, including symmetric and asymmetric encryption, hashing, and digital signatures. Use symmetric encryption for situations in which the encryptor and decryptor have access to shared, secret information, and when performance is important. Use asymmetric encryption for situations in which the encryptor and decryptor do not have access to shared, secret information. If transferring more than a small amount of information, use asymmetric encryption to transfer a shared secret, and then use symmetric encryption for optimal performance. Hashing generates a checksum that uniquely represents the piece of data being hashed. By recalculating the hash after a data transfer, a hash can be used to verify that the original data has not been modified. To create a hash, call the HashAlgorithm.ComputeHash method, and then retrieve the HashAlgorithm.Hash value. Digital signatures combine the data integrity features of hashing with the proof of identity offered by asymmetric encryption. Digital signatures can be used to verify that a particular user approves of a piece of data, and that the piece of data has not been modified since the signature was created. Unlike a hash, a digital signature cannot be modified or recreated by anyone who does not possess the private key used to create the signature.

3

List the functionality provided by ISA Server 2004 Describe how ISA Server 2004 operates as a firewall Describe how ISA Server 2004 can be used to enable secure access to Internet

' VB HeapCounter = New PerformanceCounter(".NET CLR Memory", "# Bytes in all Heaps") HeapCounter.InstanceName = "_Global_" // C# HeapCounter = new PerformanceCounter(".NET CLR Memory", "# Bytes in all Heaps"); HeapCounter.InstanceName = "_Global_";

What setting does the administrator need to change Choose the best answer. A. Change the computer s subnet mask to 255.0.0.0. B. Change the computer s default gateway to 10.1.4.1. C. Change the computer s IP address to 10.1.3.2. D. Set both of the router s IP addresses to 10.1.3.1.

In the following case scenarios, you will apply what you ve learned about instancing modes and working with instances. You can find answers to these questions in the Answers section at the end of this book.

All communication within a network requires some transport to carry the infor mation. The same is true of Active Directory replication traffic. The two transports that are used to replicate data are Remote Procedure Call (RPC) and Simple Mail Transfer Protocol (SMTP). RPCs are for sending replication messages within a site and between sites. RPC is the default protocol for all Active Directory replication because it is an industry standard and is compatible with most network types. SMTP can be used for replication between sites that are not connected with per manent connections (which are required for RPCs). One caveat regarding SMTP is that it doesn t replicate domain partition information to DCs in the domain. Because SMTP is used only for replication between sites, this is not a problem for replication of domain partition information within the domain (because this will automatically use RPC). This shows that SMTP is useful only for replication of the schema and the global catalog.

1

Let s take a look at a use case to help you better understand how use cases can provide input into your test cases Our Invoice Manager sample application contains a use case that defines a standard user scenario for processing an invoice This use case might look as follows: 1 User opens the application and logs in to the system as a member of the Accounts Payable group 2 User selects the menu option Process Invoice 3 The system presents the user with the Find Invoice screen 4 User enters search details to find the invoice the user wishes to process Search details might be the account number, invoice number, invoice date range, client name, or client phone number User selects the Find Invoice option (button) 5 System searches for invoices that match the search criteria System displays invoices that match the search criteria to the user 6.

5

In this practice, you will create a Windows Forms application that encrypts and decrypts files by using asymmetric encryption. Read the scenario and then complete the exercise that follows. If you are unable to answer a question, review the lesson and try the question again. You can find answers to the questions in the Questions and Answers section at the end of this chapter.

User reviews the invoices and selects the invoice he or she intends to process 7 System displays the full details of the invoice to the user in invoice print format 8 User enters processing information for the invoice Processing information includes payment date, purchase order (PO) number or check number, status (Paid or Paid Partial), and any processing notes User selects the Process Invoice option (button) 9 System validates the user s input 10 The system updates the Project Tracking and Billing application with the new information 11 System records the invoice in the accounting system by calling a common interface to this third-party system The accounting system returns a confirmation number 12 System updates the invoice with the confirmation number 13 System displays the invoice processing confirmation number to the user By examining this use case you can determine just how users will be working with your code.

1. 2. 3. 4. 5. 6. 7.