Flexible running on all browsers

In order to save you a lot of installation troubles, we have carried out the online engine of the 70-516 latest exam guide which does not need to download and install. This kind of learning method is convenient and suitable for quick pace of life. But you must have a browser on your device. Also, you must open the online engine of the study materials in a network environment for the first time. In addition, the 70-516 study materials don't occupy the memory of your computer. When the online engine is running, it just needs to occupy little running memory. At the same time, all operation of the online engine of the 70-516 training practice is very flexible as long as the network is stable.

Continuous improvement is a good thing. If you keep making progress and transcending yourself, you will harvest happiness and growth. The goal of our 70-516 latest exam guide is prompting you to challenge your limitations. People always complain that they do nothing perfectly. The fact is that they never insist on one thing and give up quickly. Our 70-516 study materials will assist you to overcome your shortcomings and become a persistent person. Once you have made up your minds to change, come to purchase our 70-516 training practice.

Free trials

With the arrival of experience economy and consumption, the experience marketing is well received in the market. If you are fully attracted by our 70-516 training practice and plan to have a try before purchasing, we have free trials to help you understand our products better before you completely accept our 70-516 study materials. As long as you submit your email address and apply for our free trials, we will soon send the free demo of the 70-516 training practice to your mailbox. If you are uncertain which one suit you best, you can ask for different kinds free trials of 70-516 latest exam guide in the meantime. After deliberate consideration, you can pick one kind of study materials from our websites and prepare the exam.

Online assistance and guidance

We have special online worker to solve all your problems. Once you have questions about our 70-516 latest exam guide, you can directly contact with them through email. We are 7*24*365 online service. We are welcome you to contact us any time via email or online service. We have issued numerous products, so you might feel confused about which 70-516 study materials suit you best. You will get satisfied answers after consultation. Our online workers are going through professional training. Your demands and thought can be clearly understood by them. Even if you have bought our high-pass-rate 70-516 training practice but you do not know how to install it, we can offer remote guidance to assist you finish installation. In the process of using, you still have access to our after sales service. All in all, we will keep helping you until you have passed the 70-516 exam and got the certificate.

Microsoft TS: Accessing Data with Microsoft .NET Framework 4 Sample Questions:

1. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application uses the ADO.NET Entity Framework to model persistence-ignorant entities. The
application operates in a disconnected mode.
You need to ensure that changes made to local entities while the application is in the disconnected mode
are correctly persisted.
Which method should you call before persisting changes?

A) ObjectStateEntry.SetModifiedProperty
B) ObjectContext.Refresh
C) ObjectStateEntry.AcceptChanges
D) DataContext.AcceptAllChanges

2. You add a table to the database to track changes to part names. The table stores the following row values:
-the username of the user who made the change
-a part ID
-the new part name
-a DateTime value
You need to ensure detection of unauthorized changes to the row values.
You also need to ensure that database users can view the original row values.

A) Use System.Security.Cryptography.DES to encrypt all the row values using an encryption key held by the application.
B) Use System.Security.Cryptography.RSA to encrypt all the row values. Publish only the key internally.
C) Add a column named hash. Use System.Security.Cryptography.MD5 to create an MD5 hash of the row values, and store in the hash column.
D) Add a column named signature. Use System.Security.Cryptography.RSA to create a signature for all of the row values. Store the signature in the signature column. Publish only the public key internally.

3. Which method will return all nodes of an XDocument?

A) doc.Root.Allnodes();
B) doc.GetAllnodes();
C) doc.DescendantNodes();
D) doc.Descendants();

4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server database.
The application has two DataTable objects that reference the Customers and Orders tables in the
database.
The application contains the following code segment. (Line numbers are included for reference only.)
01 DataSet customerOrders = new DataSet();
02 customerOrders.EnforceConstraints = true;
03 ForeignKeyConstraint ordersFK = new ForeignKeyConstraint("ordersFK",
04 customerOrders.Tables
["Customers"].Columns["CustomerID"],
05 customerOrders.Tables["Orders"].Columns
["CustomerID"]);
06 ...
07 customerOrders.Tables["Orders"].Constraints.Add(ordersFK);
You need to ensure that an exception is thrown when you attempt to delete Customer records that have related Order records.
Which code segment should you insert at line 06?

A) ordersFK.DeleteRule = Rule.None;
B) ordersFK.DeleteRule = Rule.SetNull;
C) ordersFK.DeleteRule = Rule.Cascade;
D) ordersFK.DeleteRule = Rule.SetDefault;

5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application.
You use the ADO.NET Entity Framework Designer to model entities. The application includes two
ObjectContext instances named context1 and context2.
You need to persist the changes in both object contexts within a single transaction. Which code segment
should you use?

A) using (TransactionScope scope = new TransactionScope()) { using (TransactionScope scope1 = new TransactionScope (TransactionScopeOption.RequireNew)) {
context1.SaveChanges();
}
using (TransactionScope scope2 = new TransactionScope
(TransactionScopeOption.RequireNew))
{
context2.SaveChanges();
}
}
B) using (TransactionScope scope = new TransactionScope()) { using (TransactionScope scope1 = new TransactionScope (TransactionScopeOption.RequireNew))
{
context1.SaveChanges();
scope1.Complete();
}
using (TransactionScope scope2 = new TransactionScope
(TransactionScopeOption.RequireNew))
{
context2.SaveChanges();
scope2.Complete();
}
scope.Complete();
}
C) using (TransactionScope scope = new TransactionScope())
{
context1.SaveChanges();
context2.SaveChanges();
scope.Complete();
}
D) using (TransactionScope scope = new TransactionScope())
{
context1.SaveChanges();
context2.SaveChanges();
}

Solutions: