UPGRADE: MCAD Skills to MCPD Web Developer by Using the Microsoft .NET Framework
UPGRADE: MCAD Skills to MCPD Windows Developer by Using the Microsoft .NET Framework
UPGRADE: MCSD Microsoft .NET Skills to MCPD Enterprise Application Developer by Using the Microsoft .NET Framework: Part 1

In all of the prep guides to these exams, Section I is identical.

Here are the goals I looked at:

Manage data in a .NET Framework application by using .NET Framework 2.0 system types. (Refer System namespace)

• Value types
• Reference types
• Attributes
• Generic types
• Exception classes
• Boxing and UnBoxing
• TypeForwardedToAttributes class

Nothing too special here.  Everybody should know about generics by now.  The TypeForwardedToAttribute is new.  Here some info I found on that:
   http://www.heege.net/blog/PermaLink,guid,8d076332-4fb0-44b5-a829-4c4d653de2d6.aspx
   http://notgartner.com/posts/2955.aspx

Manage a group of associated data in a .NET Framework application by using collections. (Refer System.Collections namespace)

• ArrayList class
• Collection interfaces
• Iterators
• Hashtable class
• CollectionBase class and ReadOnlyCollectionBase class
• DictionaryBase class and DictionaryEntry class
• Comparer class
• Queue class
• SortedList class
• BitArray class
• Stack class

Again, nothing too new here.  The only thing to be aware of is the yield return statement in C#.  It seems that a similiar construct is not available in VB.  Some good discussion can be see here:
http://robgarrett.com/Blogs/software/archive/2005/09/13/1588.aspx

Improve type safety and application performance in a .NET Framework application by using generic collections. (Refer System.Collections.Generic namespace)