Select the correct statement(s) regarding the use of DSSS and OFDM on IEEE 802.11 WLANs. a. DSSS and OFDM are more spectrally efficient than traditional FDM b. DSSS and OFDM are both spread spectrum techniques that are easy to implement and less complicated than traditional FDM c. DSSS and OFDM are only used on guided IEEE 802.3 LANs d. all statements are correct

Explain why it is reasonable to assume that receiving 3 duplicate acks in tcp is an indication that the network is not currently congested.

Aisha has finished working on a word processing document that contains 15 pages. she has added some special elements in the first three pages, page 9 and 10, and page 15 from the document. she wants to print only these pages to see how they look. which option is the correct way to represent (in the print dialog box) the pages that aisha wants to print?

Read the code below. what will the computer print if the input for year_variable is 1700? if year_variable == 1776: print("your answer is correct. the declaration of independence was signed in “year_variable”.") elif year_variable < 1776: compute_variable = 1776 - year_variable. print("add “compute_variable“ years to your answer for the correct answer.") elif year_variable > 1776: compute_variable = year_variable - 1776 print("subtract “compute_variable” years from your answer for the correct answer.")