What is interframe spacing, and why does Ethernet use it?
What will be an ideal response?
Interframe spacing is the required time between frames on an Ethernet network. After a
frame has been sent, all devices are required to wait a minimum of 96 bit times (the time it
takes to send 96 bits). This gives the medium time to stabilize after transmitting a frame.
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Two MACs that are based on the use of a block cipher mode of operation are Data Authentication Algorithm and __________ .
A. GMAC B. DMAC C. TMAC D. CMAC
A liquid layout has columns expressed as ____ based on the browser window width, so it will change sizes according to the window size.
A. pixels B. ems C. points D. percents
Create a BMI calculator application that reads the user’s weight in pounds and height in inches (or, if you prefer, the user’s weight in kilograms and height in meters), then calculates and displays the user’s body mass index. Also, the application should display the following information from the Department of Health and Human Services/National Institutes of Health so the user can eval-
uate his/her BMI: BMI VALUES Underweight: less than 18.5 Normal: between 18.5 and 24.9 Overweight: between 25 and 29.9 Obese: 30 or greater We introduced the body mass index (BMI) calculator in Exercise 1.13. The formulas for calculating BMI are 
A forecast is a prediction of the future, often based on past performances
Indicate whether the statement is true or false