VPN Mock Interview
Master 30 VPN interview questions covering protocols, security architecture, and troubleshooting.
Question 11 of 30
Can you discuss the differences between authentication, confidentiality, and integrity in the context of VPNs and network security?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
Knowing the terminology used in this profession and discussing it is a basic qualification for anybody applying for a role involving managing a VPN. Interviewers will ask this type of question to qualify your expertise in this area and validate that you have experience working with VPNs. The easiest way to respond to this type of question is to define each of the terms and point out any differences from the other terms.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"Authentication verifies that a packet received was actually sent from the sender. It also verifies the authenticity of the sender. Some of the methods used for authentication include a pre-shared key and digital certificates. Integrity is the process of ensuring that the packet contents have not been altered during transmission by a man-in-middle attack. This is done with a hashing algorithm, using protocols such as MD5 or SHA. Confidentiality is the process of encoding the message content through encryption so that data is not disclosed to unauthorized parties. Some of the encryption algorithms used to accomplish this include Data Encryption Standard (DES,) Triple-DES (3DES,) and Advanced Encryption Standard (AES)."
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