Top Denodo Interview Questions and Answers
by Sachin, on Jul 4, 2022 8:09:25 PM
Q1. Why data virtualization?
Data virtualization creates a single virtual layer that connects disparate data and provides unified access for consuming applications. These applications will use the semantic components defined in the virtual layer and reuse them as needed. In this way, your applications will be independent from the physical sources where the data is stored.
Q2. What is Virtual Dataport?
Virtual DataPort is a global solution for the real-time integration of heterogeneous, distributed, structured and semi-structured data sources. For this, it combines various features:
- Integrates and manages the data that are relevant to the company, regardless of its origin and format.
- It incorporates these data into its data system, in real time or with configurable preloads.
- Facilitates the construction of distributed information services with high strategic and functional value.
Q3. Define the concept of Hypervisors?
The term as mentioned earlier has spread its leverages and advantageous facilities widely and rapidly in the industry. Hypervisors are operations or functions that separate or detach the web applications, packages, and operating systems (OS) from the actual or physical hardware. Hypervisors have also gained sheer advancement and modification in recent years from the traditional functionality trend.
Q4. How do I install a Denodo monitor?
- To start using the Denodo Monitor, follow these steps:
- Go to the directory <'DENODO_HOME>/tools/monitor.
- On Windows, uncompress the file denodo-monitor. zip.
- Edit the file conf/ConfigurationParameters. properties to configure it.
- To start the Denodo Monitor go to bin, in the directory of the Denodo Monitor and do this:
Q5. List the top proficiencies of Denodo?
- Rational abstraction
- Agile information services
- Consolidated information security and monitoring
- Analytical and non-analytical semantic integration
- Data Federation
Q6. What are the main components of the Denodo platform?
- Automated Deployments.
- Single Point of Access.
- Authentication and Authorization. New Authentication Protocols and Single Sign-On. Privileges System Extended.
- Diagnostic & Monitoring Tool of the Solution Manager. Diagnostic & Monitoring Tool Populates Servers Automatically. Diagnostic & Monitoring Tool Starts Automatically.
Q7. What is Denodo data catalog?
The Data Catalog is a software distributed as a web application included as part of the Denodo 8.0 that offers data analysts, business users and application developers searching and browsing capability of data and metadata in a business friendly manner for self-service exploration and analytics.
Q8. What is data fabric?
A data fabric is an architecture and set of data services that provide consistent capabilities across a choice of endpoints spanning hybrid multicloud environments. It is a powerful architecture that standardizes data management practices and practicalities across cloud, on premises, and edge devices.
Q9. State the difference between Xen and KVM in Denodo?
The main difference between KVM and Xen is that KVM is a virtualization module in Linux kernel that works similar to a hypervisor, while Xen is a type 1 hypervisor that allows multiple operating systems to execute on the same computer hardware, simultaneously.
Q10. What business challenges are solved?
- Faster time to insights
- Better Performance and Scalability
- Better ROA
Q11. Denodo in the modern data architecture?
- Common Business Canonical model defined in the Data
- Query federation over Hadoop Hortonworks and other
repositories with high-performance.
- Real-time and cached access.
- A pure relational model is exposed to the consuming
applications that can get access to Denodo via SQL
queries (JDBC/ODBC, ADO.NET, SOAP WS, RESTful WS,
Q12. Explain the execution of ROI in the Denodo platform?
The ROI plays a vital role in the particular platform as it possesses a massive reduction in areas like storage, development, software, hardware, and price of maintenance. It is one of the most significant advantages of the DV platform.
Q13. How Does The Concept Of ‘Replication’ Help Business Professionals?
In this fast transferring industry, commercial enterprise people regularly undergo panicky situations that are quite affordable. Business experts require gear and strategies which can offer development and facility beyond records management. This is wherein the procedure of replication is exceptionally useful. It is of utmost use at some stage in disaster eventualities and facts loss.
Q14. Explain the concept and function of Zone Data Collector (ZDC)?
A data collector is an in-memory database that maintains dynamic information about the servers in the zone, such as server loads, session status, published applications, users connected, and license usage.
Q15. What is Hosted architecture?
The hosted architecture is a powerful way for a PC-based virtual machine monitor to cope with the vast array of available hardware. One of the primary purposes of an operating system is to present applications with an abstraction of the hardware that allows hardware-independent code to access the underlying devices.
Q16. What are the best sources to seek virtualization services and facilities from?
- VMware vSphere.
- Red Hat Virtualization.
- Proxmox VE.
- Microsoft Hyper-V.
- Citrix Hypervisor.
- Oracle VM Server.
- IBM PowerVM.
Q17. What do you mean by whole-virtualization and Para-virtualization?
Full Virtualization: Full Virtualization was introduced by IBM in the year 1966. It is the first software solution for server virtualization and uses binary translation and direct approach techniques. In full virtualization, guest OS is completely isolated by the virtual machine from the virtualization layer and hardware. Microsoft and Parallels systems are examples of full virtualization
Paravirtualization: Paravirtualization is the category of CPU virtualization which uses hypercalls for operations to handle instructions at compile time. In paravirtualization, guest OS is not completely isolated but it is partially isolated by the virtual machine from the virtualization layer and hardware. VMware and Xen are some examples of paravirtualization.
Q18. What type of project works or assignments are suitable for Denodo according to you?
The best suitable projects for the particular process include projects demanding versatile and advanced requirements. Denodo deliberately broadens and heightens the area of operation during critical or crisis scenarios and allows users to seek real-time data reports. Assignments might include the systematic BI, information for one-time consumer view, rational information services are some of the tasks where it can alter or contribute to the conventional procedures of Data management.