200-201 Question #423: Real Exam Question with Answer & Explanation

Question

Which technology assures that the information transferred from point A to point B is unaltered and authentic?

Options

• ASubject Alternative Name
• BTrust anchor
• CDigital certificates
• DEMV signatures

Explanation

Digital certificates ensure that the information transferred from point A to point B is unaltered and authentic by providing a way to verify the identity of the sender and ensure the integrity of the data. They rely on public key infrastructure (PKI), where a trusted third party (Certificate Authority) verifies and signs the certificate. This ensures: Authentication: The sender is who they claim to be. Integrity: The data has not been altered during transmission. Confidentiality: With encryption, the data remains private during the transfer. Subject Alternative Name is an extension used in digital certificates, allowing multiple hostnames to be protected under a single certificate, but it doesn't by itself assure data authenticity or integrity. Trust anchor refers to a trusted entity (like a root certificate authority) but does not directly ensure the authenticity or integrity of the transferred information. EMV signatures are used in smart card payments (such as chip-and-pin cards) for securing transactions, but they are specific to payment systems, not general information transfer between two points.

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