Last Updated on April 30, 2021 by Admin
Which statement accurately describes a characteristic of IPsec?
- IPsec works at the application layer and protects all application data.
- IPsec works at the transport layer and protects data at the network layer.
- IPsec is a framework of open standards that relies on existing algorithms.
- IPsec is a framework of proprietary standards that depend on Cisco specific algorithms.
- IPsec is a framework of standards developed by Cisco that relies on OSI algorithms.
Answers Explanation & Hints: IPsec can secure a path between two network devices. IPsec can provide the following security functions:
Confidentiality – IPsec ensures confidentiality by using encryption.
Integrity – IPsec ensures that data arrives unchanged at the destination using a hash algorithm, such as MD5 or SHA.
Authentication – IPsec uses Internet Key Exchange (IKE) to authenticate users and devices that can carry out communication independently. IKE uses several types of authentication, including username and password, one-time password, biometrics, pre-shared keys (PSKs), and digital certificates.
Secure key exchange – IPsec uses the Diffie-Hellman (DH) algorithm to provide a public key exchange method for two peers to establish a shared secret key.