A binary digit is referred to as a ________

Try to determine if retransmissions occur due to fast retransmit or due to timeouts of the retransmission timers. How can you determine which type of retransmissions you observe?

?Businesses started adopting Internet Explorer more than 20 years ago simply to view webpages. Today, Microsoft Edge has a different purpose: __________. 

Fill in the blank(s) with the appropriate word(s).