1) You don't know if the source is reliable.
2) It is better to cite reliable sources so.
Answer:
Explanation:
The computation of the velocity by using the following formula is
As we know that
where,
Displacement is 10 meters
Total time taken is 30 seconds
Now placing these values to the above formula
So, the velocity of Dash is
We simply applied the above formula so that we can get the velocity and the same is to be considered
Answer: C) DNS poisoning
Explanation: DNS poisoning or DNS cache poisoning is the type of attacking tendency towards the URL of the computer. These attempt to attack the URL using the spam mails and the user usually end up clicking on the URL provided by the attacker which invokes attack in the computer.
This mechanism takes place in the emails as well as the selected websites which can be accessed by the users easily.These attacks once enter the system seems like the real thing and become prone to many risks .
