Brian is selecting an authentication protocol for a ppp connection. he would like to select an option that encrypts both usernames and passwords and protects against replay using a challenge/response dialog. he would also like to re-authenticate remote systems periodically. which protocol should he use? group of answer choices
leap
pap
chap
eap

Selling a product through an electronic medium is

Acompany is inviting design for its new corporate logo from its users. this is an example of ? a. crowdfunding b. crowdvoting c. crowdsourced design d. crowdtracking

Use a physical stopwatch to record the length of time it takes to run the program. calculate the difference obtained by calls to the method system.currenttimemillis() just before the start of the algorithm and just after the end of the algorithm. calculate the difference obtained by calls to the method system.currenttimemillis() at the start of the program and at the end of the program so that the elapsed time includes the display of the result. use the value returned by the method system.currenttimemillis() just after the end of the algorithm as the elapsed time.