Answer:
You should install a personal firewall, a program that protects your computer from unauthorized access by blocking certain types of communications.
Explanation:
In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet.
Answer:
several personnel accessing the registration system
Explanation:
batch processing is all about multiprogramming so I think the first answer is the best as it is not based on one person .I know the last answer might be almost close but on a closer look it is not the answer as it is single based as written a file
Answer:
you can call your internet provider to see if they can speed it up!
Explanation: