BD Physical Infrastructure: Redundancy & Resiliency
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Questions and Answers

What is the primary reason for ensuring resiliency in a big data infrastructure?

  • To reduce data storage costs
  • To increase processing power
  • To eliminate single points of failure (correct)
  • To improve data encryption

    • What is a key consideration for security infrastructure in a big data environment?

  • Data compression
  • Storage capacity
  • Data encryption (correct)
  • Network bandwidth

    • Who should have access to data in a big data environment?

  • Legitimate users with business needs (correct)
  • Only developers
  • All employees of the organization
  • Only system administrators

    • Why is it important to align security requirements with business needs?

    <p>To meet specific business needs (D)</p> Signup and view all the answers

    What is the primary benefit of having redundant resources in a big data infrastructure?

    <p>Elimination of single points of failure (A)</p> Signup and view all the answers

    What is a key principle of a resilient system?

    <p>Sufficient redundant resources (A)</p> Signup and view all the answers

    What type of data is typically queried using SQL?

    <p>Structured data (D)</p> Signup and view all the answers

    What is the primary purpose of ACID properties in a database?

    <p>To ensure reliable processing of database transactions (A)</p> Signup and view all the answers

    What happens to a transaction if any part of it fails in an atomic system?

    <p>The entire transaction fails (C)</p> Signup and view all the answers

    What does the consistency property of ACID ensure?

    <p>Only valid transactions are performed on the database (D)</p> Signup and view all the answers

    What is the primary benefit of the isolation property of ACID?

    <p>Multiple transactions do not interfere with each other (D)</p> Signup and view all the answers

    What is the result of a transaction once it is written to the database with the durability property of ACID?

    <p>The data stays there 'forever' (A)</p> Signup and view all the answers

    What is the primary purpose of installing a hypervisor on a physical machine?

    <p>To create multiple virtual platforms on a physical machine (C)</p> Signup and view all the answers

    What is the term used to describe the virtual platforms created by the hypervisor?

    <p>Virtual hardware (C)</p> Signup and view all the answers

    What is the primary benefit of virtualization in terms of resource utilization?

    <p>It substantially improves the utilization of physical resources (D)</p> Signup and view all the answers

    What is the term used to describe the operating system installed on a virtual machine?

    <p>Guest OS (C)</p> Signup and view all the answers

    What is the primary reason to implement virtualization in terms of workload processing?

    <p>To improve the performance and efficiency of processing of a diverse mix of workloads (C)</p> Signup and view all the answers

    What is the term used to describe the software component that creates and manages virtual machines?

    <p>Hypervisor (B)</p> Signup and view all the answers

    What is the primary benefit of data and storage virtualization in Big Data applications?

    <p>Easier and less costly storage and retrieval (A)</p> Signup and view all the answers

    What is the primary function of a hypervisor in a virtualized environment?

    <p>To ensure dynamic resource sharing in an orderly and repeatable way (B)</p> Signup and view all the answers

    What is the key concept in Big Data that enables virtualization of IT resources and services?

    <p>Abstraction (B)</p> Signup and view all the answers

    What is the difference between Type 1 and Type 2 hypervisors?

    <p>Type 1 hypervisors run directly on the hardware platform, while Type 2 hypervisors run on a host operating system (B)</p> Signup and view all the answers

    What is the benefit of abstraction in Big Data environments?

    <p>It allows developers to focus on the logic of the application without worrying about the underlying infrastructure (B)</p> Signup and view all the answers

    What is the term for the process of combining physical storage resources to make them more effectively shared?

    <p>Storage virtualization (D)</p> Signup and view all the answers

    What is one of the benefits of abstraction in the IaaS delivery model of cloud computing?

    <p>To hide details and provide specific information to users (B)</p> Signup and view all the answers

    What is one of the benefits of virtualization in a Big Data environment?

    <p>To enable tackling larger problems that have not yet been scoped (D)</p> Signup and view all the answers

    What is a benefit of virtualization for MapReduce tasks?

    <p>Each one of the Map and Reduce tasks needs to be executed independently (B)</p> Signup and view all the answers

    What is a benefit of cloud computing?

    <p>Users only need to be concerned with the computing service being asked for (D)</p> Signup and view all the answers

    What is a benefit of virtualization in terms of resource utilization?

    <p>Virtualization increases the utilization of assets into generic pools of resources (A)</p> Signup and view all the answers

    What is a benefit of virtualization in terms of security?

    <p>Virtualization eliminates the risks of system failure (D)</p> Signup and view all the answers

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