SY0-701 Leak Questions

The SMS OTP (One-Time Password) method is more vulnerable to interception compared to TOTP (Time-based One-Time Password) because SMS messages can be intercepted through various attack vectors like SIM swapping or SMS phishing. TOTP, on the other hand, generates codes directly on the device and does not rely on a communication channel like SMS, making it less susceptible to interception.

References = CompTIA Security+ SY0-701 study materials, particularly in the domain of identity and access management​​.

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The company should implement a certificate revocation list, or CRL. Smart-card authentication commonly relies on certificates issued to users. When employees leave, their certificates must be revoked so those credentials can no longer be trusted. A CRL is published by a certificate authority and lists certificates that should no longer be accepted before their normal expiration date. A CA issues and manages certificates, but the specific missing control is revocation checking. A TPM stores cryptographic material on a device and does not revoke user certificates. A CSR is used to request a certificate, not disable one. An HSM protects cryptographic keys, but it does not prevent former employees from using still-valid smart-card certificates.

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Applying the latest OS updates, patches, and endpoint definitions is the most effective way to prevent known exploits, which are attacks leveraging previously discovered vulnerabilities for which fixes are available.

Homomorphic encryption allows data to be encrypted and manipulated without needing to decrypt it first. This cryptographic technique would allow the financial institution to store customer data securely in the cloud while still permitting operations like searching andcalculations to be performed on the encrypted data. This ensures that the cloud service provider cannot decipher the sensitive data, meeting the institution’s security requirements.

References =

CompTIA Security+ SY0-701 Course Content: Domain 03 Security Architecture​.

CompTIA Security+ SY0-601 Study Guide: Chapter on Cryptographic Techniques​.