You need to recommend a data access technology to the contractor to retrieve data from the new data source.
Which data access technology should you recommend?
LINQ to XML
Entity Framework
ADO.NET DataSets
WCF Data Services
Correct answer: D
Question 2
Errors occasionally occur when saving data using the FlightInfoContext ADO.NET Entity Framework context. Updates to the data are being lost when an error occurs.
You need to ensure that data is still saved when an error occurs by retrying the operation. No more than five retries should be performed.
Which code segment should you use as the body of the SaveChanges() method in the FlightInfoContext.es file?
Option A
Option B
Option C
Option D
Correct answer: A
Question 3
You are adding a new REST service endpoint to the FlightDataController controller. It returns flights from the consolidated data sources only for flights that are late.
You need to write a LINQ to Entities query to extract the required data.