Fill in the blanks:
a. is based on travelling datagrams through internetworks one hop at a time. the entire route is unknown at the beginning of the journey.
b. is group-based communication. it can be one-to-many or many-to-many distribution.
c. the most important requirement of a network is the ability to treat different data types differently.
d. process transmits telephone calls (voice) over the internet. 2
e. is the standard recommended by the itu for low bit-rate voice transmission over the internet.
f. is an unencrypted message data.

An excel which cell contains =b2 is copied to row below, the same column. what will be the new cell's content

One subtask in the game is to roll the dice. explain why is roll the dice an abstraction.

Working on this program in python 3.7: a year in the modern gregorian calendar consists of 365 days. in reality, the earth takes longer to rotate around the sun. to account for the difference in time, every 4 years, a leap year takes place. a leap year is when a year has 366 days: an extra day, february 29th. the requirements for a given year to be a leap year are: 1) the year must be divisible by 42) if the year is a century year (1700, 1800, the year must be evenly divisible by 400some example leap years are 1600, 1712, and 2016.write a program that takes in a year and determines whether that year is a leap year. ex: if the input is 1712, the output is: 1712 is a leap year. ex: if the input is 1913, the output is: 1913 is not a leap year. your program must define and call the function isleapyear(useryear). the function should return true if the input year is a leap year and false otherwise.