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.
For example, 110 over 70 (written as 110/70). 1  The top number is the systolic blood pressure reading. It represents the maximum pressure exerted when the heart contracts. 2  The bottom number is the diastolic blood pressure reading. It represents the minimum pressure in the arteries when the heart is at rest.