15.1.5 Check Your Understanding – Identify the Secure Communication Objective Answers

1. Ensures privacy so that only the receiver can read the message.

  • Confidentiality
  • Integrity
  • Authentication

Explanation: Confidentiality ensures that only the receiver can read the message.

2. Ensures that messages are not altered in transit.

  • Confidentiality
  • Integrity
  • Authentication

Explanation: Integrity ensures that messages are not altered in transit.

3. Guarantees that a message comes from the source that it claims to come from.

  • Confidentiality
  • Integrity
  • Authentication

Explanation: Authentication guarantees that the message comes from the source that it claims to come from.

4. In banking, it can be achieved by requiring a secure personal identification number (PIN) at an ATM.

  • Confidentiality
  • Integrity
  • Authentication

Explanation: Authentication in banking can take the form of a PIN.

5. Encryption and hashing are used to make certain that only authorized entities can read the message.

  • Confidentiality
  • Integrity
  • Authentication

Explanation: Confidentiality can use encryption and hashing to make certain that only authorized entities can read the message.

6. A key is required to encrypt and decrypt a message.

  • Confidentiality
  • Integrity
  • Authentication

Explanation: Confidentiality requires a key encrypt and decrypt a message.

7. The receiver can verify that the received message is identical to the sent message and that no manipulation occurred.

  • Confidentiality
  • Integrity
  • Authentication

Explanation: Integrity ensures that received message is identical to he sent message and that no manipulation has occurred.

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