What are the three types of authentication options available in networks today? (Choose three.)

What are the three types of authentication options available in networks today? (Choose three.)

• hashing
• VPNs
• credentials
• certificates
• biometrics
• encryption

Explanation: Authentication is the foundational process of identifying a user before they are granted access to protected network resources. According to the sources, modern network authentication is generally based on three distinct categories:

1. Something a user knows: This involves the use of credentials, specifically username and password combinations.
2. Something a user has: This refers to digital certificates issued by a trusted certification authority.
3. Something a user is: This utilizes biometrics, such as scanners that identify individuals by their fingerprints or eye retina.

While options like hashing and encryption are critical security mechanisms used to protect authentication data or ensure confidentiality, they are not categorized as the primary types of authentication options themselves.

Related exam: Modules 14 – 16: Checkpoint Exam: Network Security Answers (CCNP ENCOR v9)