What will come in place of (?) question mark in the

Which type of transistor is less susceptible to thermal runaway?

How many digits are there in the octal number system?

What is the definition of an NP-hard problem?

What is the main purpose of a digital signature in public key cryptography?

The banker’s algorithm is used

In which protocol of email the changes made on one device will not be replicated on other?

A resistor has a resistance of 100 ohms and a current of 2 amperes passing through it. Calculate the voltage drop across the resistor.

In which type of scope do variables declared in a function have priority over variables declared in the surrounding program?

Physical address called as MAC address is associated with which layer?