GMAT 2015 Syllabus

On test day, you have three and a half hours to complete the four sections of the GMAT exam – Analytical Writing Assessment, Integrated Reasoning, Quantitative, and Verbal.
Analytical Writing Assessment (AWA) Section - The Analytical Writing Assessment (AWA) measures your ability to think critically and to communicate your ideas. During the AWA, you are asked to analyze the reasoning behind a given argument and write a critique of that argument.
Integrated Reasoning Section - The Integrated Reasoning section measures your ability to evaluate information presented in multiple formats from multiple sources.
Quantitative Section - The Quantitative section measures your ability to analyze data and draw conclusions using reasoning skills.
Verbal Section - The Verbal section measures your ability to read and understand written material, to evaluate arguments, and to correct written material to conform to standard written English.