Cisco Packet Tracer is tool used for network simulation and visualization program.
The two methods can be used to access and modify an existing program that is running on an IoT device in Cisco packet trace are the following:
1. Click on the device then select the Programming tab.
2. Go to the registration server and login. Then select the Editor tab.
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.
The answer is A, or Locating bottlenecks in a network.
