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

By refraining from constructing a building until they are certain that it will not cause harm to the environment, an organization is adhering to the

Dean wants a quick way to look up staff members by their staff id. in cell q3, nest the existing vlookup function in an iferror function. if the vlookup function returns an error result, the text “invalid staff id” should be displayed by the formula. (hint: you can test that this formula is working by changing the value in cell q2 to 0, but remember to set the value of cell q2 back to 1036 when the testing is complete.)

Examine the list below. which factors positively affect lifetime income? check all that apply.