If both sender and receiver use the same key the system is ...

[Chelseaamend]

If both sender and receiver use the same key the system is referred to as _________ encryption.
 
  A. asymmetric  B. two-key
 
  C. symmetric  D. public-key

Question 2

If the sender and receiver each use a different key the system is referred to as __________ encryption.
 
  A. secret-key  B. conventional
 
  C. single-key  D. asymmetric

[miss.ashley]

Answer to Question 1

C

Answer to Question 2

D

[Chelseaamend]

Excellent

[amandalm]

Thanks for the timely response, appreciate it