CompTIA Updated CAS-004 Exam Questions and Answers by henrietta

VPN Concentrator:

AAA Server:

Order of volatility is a procedure that a computer forensics examiner must follow during evidence collection. It refers to the order in which digital evidence is collected, starting with the most volatile and moving to the least volatile. Volatile data is data that is not permanent and is easily lost, such as data in memory when you turn off a computer. The security analyst should have followed the order of volatility to preserve the most fragile evidence first, such as the malicious script running as a background process, before turning off the infected machine. Verified References:

https://www.computer-forensics-recruiter.com/order-of-volatility/

https://www.sans.org/blog/best-practices-in-digital-evidence-collection/

https://blogs.getcertifiedgetahead.com/order-of-volatility/

An ISA, or interconnection security agreement, is a document that should be required to set up a dedicated VPN between two entities that provide specialized help desk services. An ISA defines the technical and security requirements for establishing, operating, and maintaining a secure connection between two or more organizations. An ISA also specifies the roles and responsibilities of each party, the security controls and policies to be implemented, the data types and classifications to be exchanged, and the incident response procedures to be followed.

References: [CompTIA CASP+ Study Guide, Second Edition, page 36]

The company should implement OCSP stapling and HSTS to improve TLS performance and enforce HTTPS. OCSP stapling is a technique that allows a server to provide a signed proof of the validity of its certificate along with the TLS handshake, instead of relying on the client to contact the certificate authority (CA) for verification. This can reduce the latency and bandwidth of the TLS handshake, as well as improve the privacy and security of the certificate status. HSTS stands for HTTP Strict Transport Security, which is a mechanism that instructs browsers to only use HTTPS when connecting to a website, and to reject any unencrypted or invalid connections. This can prevent downgrade attacks, man-in-the-middle attacks, and mixed content errors, as well as improve the performance of HTTPS connections by avoiding unnecessary redirects. Verified References:

https://www.techtarget.com/searchsecurity/definition/OCSP-stapling

https://www.techtarget.com/searchsecurity/definition/HTTP-Strict-Transport-Security

https://www.cloudflare.com/learning/ssl/what-is-hsts/