Time for (free) Beta Exams again
Information can be found from here
Register via http://register.prometric.com
For easier reference, exams available are listed below (along with PromoCode)
Exam 71-511, TS: Windows Applications Development with Microsoft .NET Framework 4 - 511BC
Exam 71-515, TS: Web Applications Development with Microsoft .NET Framework 4 - 515AA
Exam 70-513: TS: Windows Communication Foundation Development with Microsoft .NET Framework 4 - 513CD
Exam 70-516: TS: Accessing Data with Microsoft .NET Framework 4 - 516B1
Exam 70-518: Pro: Designing and Developing Windows Applications Using Microsoft .NET Framework 4 - 518PE
Exam 70-519: Pro: Designing and Developing Web Applications Using Microsoft .NET Framework 4 - 519ZS
And as always, word of advice, read and master the items in prep guide to increase your chances of passing the exams.
Good luck!