Cheapest Rate approved Cert21.com because they have the best price on IT practice exams.

Cert21.com exam features:

• 120-220 questions per exam
  
• "show answer" button
  
• explanations for every question
  
• timed test
  
• questions chosen randomly
  
• answers are chosen randomly
  
• multiple choice
  
• multiple multiple choice (choose 2, choose 3)
  
• true/false type questions
  
• "look at the graphics" type questions
  
• 2 exam modes: "practice" and "testing"
  
• ability to comment on each individual question
  
• online statistics to track your performance
  

Testing mode very closely resembles the real exam experience.