Answer:
First, never download software or videos from untrusted websites, as they can hide malicious code inside it. Never turn off the anti virus, anti virus only purpose is to block malware or viruses if you disabled it and don't know what you are doing high chance there will be a back door created in your PC. Try a antivirus that is well known and has good reputation on protecting a PC, note that good looking GUI on an antivirus doesn't tell it is always good, it's not the GUI you care about its the whole protecting your PC.
Answer:
A route.
Explanation:
A route simply describes the path of a network packet on the internet. A route will specify the path taken by packets in a network (and even across networks) which is essentially from it's source network (or even device) to the destination. Consequently, the process of moving network packet across networks is called routing. Some of the routing methods are unicast, multicast and broadcast.
<em>Hope this helps!</em>
Answer:
Explanation:
Duplicate tuples are not allowed in a relation because the specifications of the constraints of the regional integrity are violated, especially the main constraint that states that there can be no identical values for the attributes of two tuples at any database relation state.
Also, duplicate tuples are not allowed in a relation due to the fact that they lead to redundancy of the data base which in turn, slowing down the speed of the database when data processing such as inserting, querying, updating, deleting, etc are being performed.
B. True
The other one is weird
I am fairly familiar with all three of these services and can say that they all have a sharing feature. :)