MTA certification addresses a wide spectrum of fundamental technical concepts, assesses and validates your core technical knowledge, and enhances your technical credibility. Note MTA exams do not qualify for MCP certification, nor are they a prerequisite for MCSA or MCSD certification.
The bottom number is the more important of the two. The bottom number of your BP (104) is a bit high. That's the pressure in your blood vessels after your heart has contracted and is now at momentary rest. Average is about 80. Your upper number (128) corresponds to the pressure in your vessels when your heart contracts.
Blood pressure (BP) is the force or pressure that blood puts on the walls of your arteries as it goes through your body. BP readings are usually written as 2 numbers. The first or top number is called systolic BP. The second or bottom number is called diastolic BP. Normal BP is less than 120/80.