Answer:
The Operating System allocates resources when a program need them. When the program terminates, the resources are de-allocated, and allocated to other programs that need them
It is true, Because all the the drives or memories which doesn't have a plates spinning like hard disk are called solid state drives.
Answer:d) Mono-alphabetic substitution rules
Explanation: Poly-alphabetic cipher is the cryptography that is done by using the many alphabets in substitutional way. They are supposed to have a good security because they use cipher text alphabets for the encryption and then decrypts it.
Substitution of the alphabets is done by the rule of the mono-alphabetic substitution rules.Other given options are incorrect because they are not used in the cryptography of the alphabetic cipher. Thus option (d) is the correct answer.
