Selected Cybersecurity-Audit-Certificate Cybersecurity Audit Questions Answers

 An incremental backup is a type of backup that only copies the files that have changed since the last backup was made. This means that after a full backup, subsequent incremental backups will only include the data that has been altered or newly created since the previous backup, making it a more efficient way to save storage space and reduce backup time.

References = While I can’t provide direct references from the Cybersecurity Audit Manual, the concept of incremental backups is a standard practice in data management and is covered in various cybersecurity and IT audit resources, including those provided by ISACA1. For a detailed understanding, you may refer to the ISACA Cybersecurity Audit Certificate resources or other ISACA study materials.

 Asymmetric algorithms are commonly used to securely distribute symmetric keys. The asymmetric encryption process involves a public key for encryption and a private key for decryption. This method ensures that even if the public key is intercepted, the encrypted data cannot be decrypted without the corresponding private key. Symmetric keys are then used for the bulk encryption of data due to their efficiency in processing large volumes of information.

References = The use of asymmetric algorithms for key distribution is a well-established practice in the field of cryptography. It is mentioned in various ISACA resources that asymmetric encryption, such as RSA and ECC, is crucial for secure communications, especially for the initial exchange of symmetric keys, which are then used for encrypting data streams or bulk data123.

A Virtual Private Network (VPN) provides additional protection to messages transmitted using portable wireless devices by creating a secure and encrypted tunnel for data transmission. This helps protect the data from being intercepted or accessed by unauthorized entities. While encryption secures the content of the messages, a VPN secures the transmission path, adding an extra layer of security.

References: The use of VPNs for enhancing the security of mobile devices is discussed in ISACA’s resources. VPNs are recommended as a measure to protect data in transit, especially when using public or unsecured networks, which is a common scenario for portable wireless devices

The feature of continuous auditing that provides the BEST level of assurance over traditional sampling is that voluminous data can be analyzed at a high speed to show relevant patterns. This is because continuous auditing is a technique that uses automated tools and processes to perform audit activities on a continuous or near-real-time basis, and to analyze large amounts of data from various sources and systems. Continuous auditing helps to provide a higher level of assurance than traditional sampling, by covering the entire population of transactions or events, rather than a subset or sample, and by identifying trends, anomalies, or exceptions that may indicate risks or issues. The other options are not features of continuous auditing that provide the best level of assurance over traditional sampling, but rather different aspects or benefits of continuous auditing, such as reporting frequency (A), reliability (B), or complexity (D).