SSL Complete Guide 2021: HTTP to HTTPS - Exploring Certificate of Google

The video tutorial provides an in-depth analysis of digital certificates, focusing on Google's certificate structure, including root and intermediate authorities. It explains wildcard and multi-domain certificates, detailing their use for subdomains and multiple domains. The tutorial covers certificate validity, public key information, and signature algorithms. It also discusses DNS names in certificate extensions and introduces Comodo's certificate analysis, highlighting the purchasing process.

What is the role of the intermediate certification authority in the certificate chain?

• It acts as a backup for the root authority.

• It issues certificates to end-users.

• It provides an additional layer of trust between the root authority and the end-user.

• It validates the root certification authority.

What is a wildcard certificate used for?

• It is used for securing email communications.

• It is used for a single domain only.

• It is used for multiple subdomains of a single domain.

• It is used for multiple unrelated domains.

Which algorithm is mentioned as being used for signing the certificate?

• AES-256

• SHA-256 with RSA encryption

• MD5

• SHA-1

What is the significance of the public key in a certificate?

• It encrypts data sent to the server.

• It is used to sign the certificate.

• It decrypts data received from the server.

• It verifies the identity of the server.

What is a multi-domain certificate?

• A certificate that is valid for a short period.

• A certificate that can be used for a single domain.

• A certificate that can be used for multiple subdomains of a single domain.

• A certificate that can be used across multiple unrelated domains.