CISSP Certification: Mastering Data Encryption and Security Protocols Quiz

The correct answer is A. CAST, which is a Feistel-type block cipher with block sizes of 64-128 bits.

A structured walk-through test involves a comprehensive review of the disaster recovery plan, allowing for identification of areas of overlap and potential gaps in the plan. It is a cost-effective and efficient way to ensure readiness for more demanding training exercises.

Reduction analysis involves reducing the system's risk to a target level through countermeasures and vulnerability identification, rather than just analyzing threats.

Interface testing focuses on testing the interfaces between components of a system. It is particularly useful in large environment simulations to ensure that the interactions between different components work effectively together. The other options do not accurately describe the purpose or characteristics of interface testing.

Backup tapes for disaster recovery are typically considered not reasonably accessible due to the time and effort required to retrieve specific data from them in comparison to other options such as hard drives or auto-access optical disks.

Common Law is the correct answer because it is based on precedents and judicial decisions. Criminal Law deals with crimes and punishment, Tort Law deals with civil wrongs, and Administrative Law deals with regulations set by administrative agencies.

Bluetooth uses SAFER as its symmetric cipher due to its light weight and efficient encryption capabilities.

A minimum security baseline is a set of standards that are applied across an entire enterprise to ensure a consistent level of compliance. This helps maintain a uniform level of security measures throughout the organization.

In public key cryptography, the sender signs a message with their private key, which can then be verified by anyone using the sender's public key. Additionally, the message can be encrypted with the recipient's public key to ensure confidentiality.

The correct cryptographic system service to prevent unauthorized disclosure of information on a local network is Confidentiality, which ensures that the data is encrypted and only authorized parties can access the plaintext. Authentication is used to verify the identity of users, Non-Repudiation ensures that a sender cannot deny sending a message, and Integrity ensures that data remains accurate and consistent throughout its lifecycle.

Enterprise security architecture involves defining technology security architecture in relation to other technology domains to ensure comprehensive security measures.

TELNET is a protocol that dates back to a time when security was not a primary concern. It lacks encryption, making it vulnerable to eavesdropping and man-in-the-middle attacks. Additionally, TELNET's authentication process is limited to UserID/password which can be brute forced, posing a significant security risk.

Symmetric encryption is the best solution as it uses the same key to encrypt and decrypt data, making it simpler to manage compared to asymmetric encryption, S/MIME, or PGP which require separate keys for encryption and decryption.

HVAC stands for Heating, Ventilation, and Air Conditioning. It is the technology related to indoor environmental comfort by providing heating and cooling, as well as maintaining air quality and temperature.

Remote Access allows individuals to access resources or systems from a location that is not physically present. This technology is commonly used by administrators and end users to remotely manage or utilize resources.

Accreditation tests the system's hardware, software, and configuration in an environment like its eventual operational setting, ensuring it meets certain standards and requirements.

Intrusion Detection Systems (IDS) can be categorized as Network-based (NIDS) or Host-based (HIDS). NIDS monitors network traffic, while HIDS monitors activity on individual devices. Encryption can make it difficult for NIDS to inspect network traffic, hence its efficiency decreases with encryption.

Timeboxing is a technique where a fixed period of time is allocated to complete a specific task or set of tasks. The Dynamic Systems Development Model (DSDM) is an agile development model that uses timeboxing as a key element to ensure timely delivery of the project. While other agile methodologies like eXtreme Programming, Scrum, and Feature Driven Development (FDD) have their own unique practices and approaches, they do not specifically emphasize timeboxing as prominently as DSDM does.

When choosing data retention policies, considerations typically revolve around cost, data retrieval and use, and inherent aggregation. Human resources, while indirectly involved in the implementation of data retention policies, are not a primary consideration in the decision-making process.

Non-repudiation is the term used to refer to the mechanism that ensures the sender cannot deny sending a message. Integrity, Confidentiality, and Authentication are important concepts in cybersecurity, but they do not specifically address the issue of proving the sender's identity in message transmission.

Functional testing is focused on ensuring that the software functions as expected and meets the specified requirements, making it the best choice for verifying data requirements and displays/reports generation.

The Triage Phase is triggered by awareness in the incident response process as it involves quickly assessing the situation to determine the severity of the incident and prioritize response actions.

Substitution in encryption refers to replacing the plaintext with ciphertext according to a specific system, rather than mixing their locations.

In an industrial control system, a Programmable Logic Controller (PLC) is a commonly used control component for automation and control of machinery and processes. While process control systems, remote terminal units, and master terminal units are also used in various industrial applications, they do not specifically refer to the basic control component as requested in the question.

The investigative phase of the incident response process includes detection and analysis of the incident, but not notification. Notification typically occurs in the Containment phase once the incident has been fully understood and contained.

Residual risk is the risk that still remains after the implementation of controls. It is important to identify and assess residual risk to ensure that the organization's overall risk exposure is effectively managed.