Suppose that the username of myITU system must satisfy the following requirements: (i) each username must be eight to twelve characters long; (ii) each character in the username must be a letter (a-z or A-Z) or a digit (0−9); and (iii) each username must contain at least one digit (0−9). (iv) each username must start with a letter (a-z or A-Z). How many possible usernames are there for myITU system? Provide your argument to support your answer

Linda subscribes to a cloud service. the service provider hosts the cloud infrastructure and delivers computing resources over the internet.what cloud model is linda using

How do you set up a slide show to play continuously, advancing through all the slides without requiring your interaction? a. click set up slide show, and then select the loop continuously until ‘esc' and show without narration options. b. click set up slide show, and then select the loop continuously until ‘esc' and use timings, if present options. c. click set up slide show, and then select the show presenter view and use timings, if present options. d. click set up slide show, and then select the show without animation and browsed at a kiosk (full screen) options.

:you areto design the controller for alight that functions both as an ordinary light and also as a motion activated light and alarm. a.if the manual switch s is on, then the light l is on. b.besides the manual switch, there is a motion detector, m1, which activatesthis light.c.if motion is detected but the light is on anyway because s is on, only then a secondoutput a, an alarm, is turned on. d.the disable switch, d, disables the motion activated light and alarmbut leaves manual control operation of the light using switch s.(i)read the problem statement and clearly identify the inputs and outputs for the circuit you are designing. (ii)create the truth table for this system; include the light, alarm, switch, disable, and the motion sensor.(iii)draw a schematic of this system.