Answer:
The Columbus laboratory is ESA’s largest single contribution to the International Space Station. It was also the first permanent European research facility in space.
Explanation: that is something I know i don’t know if it will help you with your answer
Answer:
I think it is network security
Explanation:
Heard in an ad before :T
The correct answer is B, a laminated core and a shading coil.
A key difference in an AC relay is the presence of a "shading coil". The purpose of this coil is to keep the relay on when the current drops to zero during phase change (note that in AC power the current and voltage are alternating in a sine wave around 50/60 times per second). The shading coil retains some magnetic energy and essentially holds the relay ON when the current drops to zero momentarily due to the AC waveform.
AC relays also have a laminated core to prevent losses due to eddy current heating.
I think it is 3 no? Maybe I dunno but I am confident
Answer: Remote Access Trojans (RATs) is the malware that is used by the hackers to attack the computer and operating system remotely.The working of RATs is done by download the malware and executing it to create a server .After the server is created ,hacker sends this server along with a crypter to eliminate the antivirus program's function present in the user's system.
Thus, RAT gets invoked in the system of the user and the hacker can control the user's system .Attacker can hack the complete functioning of the user's system and can steal, destroy ,execute etc any confidential data and application.
The user or the network administrator can get to know about the RAT's activity by steps like checking the open port, checking the activities through Task Manager of Windows, observing any unusual activity and appearance of the display screen etc.
