Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Cyber Security and Emerging Technologies
What is the purpose of a firewall in cyber security?
1
To allow unrestricted access to a network
2
To block unauthorized access to a network
3
To create a backup of a network's data
4
More than one of the above
5
None of the above