Consider the following fragment of code in an authentication program: username = read_username(); password = read_password(); if username is "l33t h4ck0r" return ALLOW_LOGIN; if username and password are valid return ALLOW_LOGIN else return DENY_LOGINWhat type of malicious software is this?Select one:a. Keyloggerb. Logic bombc. Wormd. Viruse. Backdoor

Some of the first computer games were created in the early 1970s by college students experimenting after hours to see what the were capable of doing.

Based on your knowledge of a good network, describe what you think is a perfect network would be. what kind of information and resources could users share on this network. what would the network administrator do? what kind of communication would be used?

: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.