A. What are the three methods used in social engineering to gain access to information?

Drag each label to the correct location on the imagelist the do’s and don’ts of safeguarding your password.keep yourself loggedin when you leave your computer.don’t write your password down and leave it whereothers can find it.share your password with your friends.each time you visit a website,retain the cookies on your computer.use a long password with mixed characters.

Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.

Visualizing a game of “tag” to remember the meaning of contagious