Could you please provide basic definitions for the questions mentioned below:

Must know what an information system is and what information system security is

Fully understand the security requirements of confidentiality, integrity, and availability.

Fully understand the security requirements of authentication, authorization, and accounting.

Understand the OSI model, the major function(s) supported at each individual layer

Able to explain the fundamental security design principles

Understand the introduced protocols and cryptography standards, such as TLS/SSL, ARP, and IP4 protocols.

Know the differences between security, risk, and information security risk.

Understand the principles under symmetric cryptography and asymmetric cryptography, and know the differences between those two.

Understand the principles behind public key infrastructure

Understand the differences between Hashing and Encryption

Be able to understand and analyze the problems related to communication over public networks

Be able to perform subnetting, apply subnetting knowledge to scan specific subnets

Know the differences between public IP, private IP, subnet mask, broadcast ID, and network ID