Which of the following refers to software designed to alter system files and utilities on a victim's system with the intention of changing the way a system behaves?

Keystroke loggers

Backdoors

Rainbow tables

Rootkits

Given an unsorted array of distinct positive integers A[1 ... n] in the range between 1 and 10000 and an integer i in the same range. Here n can be arbitrary large. You want to find out whether there are 2 elements of the array that add up to i.

An axial compressive load of 708 kN is applied to a cylindrical component, 81 mm in diameter and 418 mm long, made of aluminium. Calculate the compressive stress, fc

Inventions for a 9 year old

An inventor claims that he wants to build a dam to produce hydroelectric power. He correctly realizes that civilization uses a lot more electricity during the day than at night, so he thinks he has stumbled upon a great untapped energy supply.

Consider a metal single crystal oriented such that the normal to the slip plane and the slip direction are at angles of 43.1 degrees and 47.9 degrees, respectively, with the tensile axis. If the critical resolved shear stress is 20.

Which of the following elements of the CIA triad refers to maintaining and assuring the accuracy of data over its life-cycle? Confidentiality Integrity Availability Authentication

According to the video, what are some of the effects of the increase in the use of automated tools for Loading Machine Operators? Check all that apply.

A gas flows through a one-inlet, one-exit control volume operating at steady state. Heat transfer at the rate takes place only at a location on the boundary where the temperature is Tb.

An uncharged capacitor and a resistor are connected in series to a source of voltage. If the voltage = 7.41 Volts, C = 11.5 µFarad, and R = 89.

The convection heat transfer coefficient for a clothed person standing in moving air is expressed as h 5 14.8V0.69 for 0.15, V, 1.5 m/s, where V is the air velocity. For a person with a body surface area of 1.