ESE 2021 Technical Quiz 133|| Communication networks: Principles /practices /technologies /uses /OSI model/security

Which of the following statements are correct related to Co-Channel Interference (CCI)

1) CCI can be reduced by increasing transmitted powers.

2) CCI can be reduced by maintaining a minimum separate distance between the co-channels.

In an IPV4 datagram, M bit is zero and fragment offset value is zero, then the fragment is

For authentication digital signature is used, then sender encrypts its signature using

What topologies are used in communication networks

Framing, Error detection is controlled by which layer of OSI model?