Data loss prevention is a computer security technique that protects confidential information from unauthorized or inadvertent release. It involves identifying sensitive data, monitoring it, and classifying it by degree of confidentiality. Proper training of personnel and compliance with regulations are also necessary for a strong data loss prevention system. System audits are performed periodically to […]
Data warehouses can be either normalized or dimensional. Normalized data is simple and lacks context, while dimensional data provides a comprehensive picture but can be difficult to navigate. Most data warehouses find a middle ground between the two. There are two major data warehouse systems; normalized and dimensional. In a normalized structure, data is limited […]
Data streams are sequences of information sent between devices, consisting of small packets or pulses. Data transmission can be serial or parallel, and asynchronous or synchronous. Monitoring data flows is important for security reasons to prevent interception of unprotected information. A data stream is a sequence of information that is sent between two devices. Data […]
Pivot tables sort data by specific criteria, allowing for easier data analysis and presentation in multiple formats. They automate the process of aggregating sales data and can save hours of manual analysis work. Pivot queries are available in advanced database tools and can be used as a raw reporting tool. The data returned can be […]
FDDI is a network technology based on optical fiber, offering high speeds and long distance coverage. It was designed to provide a faster and more reliable network backbone, with redundancy and fault tolerance. FDDI networks can be configured in different topologies and can also run data in both directions. However, the high cost and complexity […]
Clinical data manager jobs involve combining medical and technological fields. The role involves developing and maintaining a database system, overseeing data entry personnel, and ensuring data accuracy. Specific roles include senior clinical data manager, clinical systems analyst, clinical applications programmer, and senior clinical operations consultant. These positions require a combination of clinical and technological skills. […]
Data availability refers to the reliability and accessibility of data stored remotely, often through external storage or networks. It is crucial for businesses and is achieved through reliable hardware and redundancy, such as SAN and NAS systems. Redundancy ensures data availability in case of system failure or disaster. Data availability typically refers to how available […]
Data validation ensures that information in a program or database is standard and clean. There are different standards based on programming language and type of information. Validation can be simple or complex, and various tests can be used. Validation also protects against hackers by preventing corruption and malfunction. Data validation is the process of checking […]
A data custodian is responsible for organizing and granting access to an organization’s digital data, assessing its accuracy and relevance, and implementing new IT systems. They determine the sensitivity of data and work with executives to implement major changes. One of the most common tasks of a data custodian is to ensure that all data […]
Data flow programming focuses on designing systems around data processing rather than code manipulation. It uses small modules called nodes to process data and pass it to other nodes. This is different from imperative programming, which focuses on explicit function calls. Data flow programming allows for unique data flows and can be used on distributed […]
A data cluster is a group of memory sectors that emulates the size of the files stored on a computer, making it easier to manage. Clusters improve access speed, but memory fragmentation is common, especially with smaller files. Sectors do not need to be next to each other to exist in the same cluster. A […]
Online data storage is flexible, expandable, and easy to share. It provides backup and can be accessed from anywhere with internet access. Security measures include password protection and encryption. Live offsite data archiving is recommended for heavy data processing. Recovery is easy, and offsite backup is crucial for disaster planning. Storing data online serves four […]
Data permanence refers to data that remains on a storage device after deletion. This occurs because standard deletion methods are not always effective. Methods to destroy data remnants include wiping, deleting, and shredding. Computer forensics can locate and recreate deleted data. Data permanence refers to the physical aspects of data that can remain on a […]
A clinical data repository is a collection of clinical data from patients that can be used by healthcare professionals for patient care and management, as well as by researchers to retrospectively review clinical data. Access to information is restricted for legal reasons. Creating a clinical data archive requires a robust electronic health record system. It […]
Change data capture is the process of recording and saving version records in data systems. It assigns indicators to data items that change when data changes, notifying the system and saving previous versions. Data versioning is important for archiving and error checking. Methods for creating versions include special markers. Large-scale systems are found in data […]
Data interchange formats, such as DIF and LDAP, allowed for interoperability between various computer programs in the 1980s and 1990s. LDIF became a standard for importing and exporting directory records, while ADIF was developed for amateur radio software. JSON is a lightweight data interchange format based on JavaScript. The first instance of a data interchange […]
Cell phones can store a lot of data, but it can be lost or stolen. Recovery options include contacting the carrier for support, using data recovery software, online services, or loading data from the SIM card. It’s best to use paid software for newer devices. SIM cards can be replaced, and data can be backed […]
Data warehousing interview questions cover general understanding, level of expertise, processes, and personality. Questions range from general knowledge to complex processes, data mining, and personal fit within a team. Data warehousing is the technological act of storing large amounts of data for use in reporting. Many different industries utilize this technology, and warehouses are often […]
Data migration involves translating data from one format or storage device to another. It is necessary for system upgrades or archiving. The process typically involves four stages, including validation and repair. Migration software performs the necessary tasks, identifying and resolving potential issues. Data migration means what it appears to mean: sort of. It’s not data […]
Various data storage solutions include tape backup, flash drives, CD-R/CD-RW, DVD technology, hard drives, and FTP. The best choice depends on the amount and importance of data, and budget. FTP is recommended for small, critical data, DVD for limited lifespan, and tape for long-term archiving. There are a variety of methods that can be used […]
