HTTP or HTTPS is most likely the answer you are looking for.
Which is a multicast address ?
ans: 241.2.2.1
Answer:
D- Trojan Horse
Explanation:
Trojan horse is a malware that has hidden code and look legitimate in order to damage or transfer harmful action on the computer.
Example hackers can disguise as Trojan horse by spying on the victims computer in order to gain access to sensitive data on the computer over the network.
Press Windows logo key + X Key.
Click on Control Panel.
Double Click on Troubleshooting.
Click on View all option, on left hand side of the window.
Click on Search and indexing and follow the on screen instructions.