BD Physical Infrastructure: Redundancy & Resiliency

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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?

To meet specific business needs (D) Signup and view all the answers

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

Elimination of single points of failure (A) Signup and view all the answers

What is a key principle of a resilient system?

Sufficient redundant resources (A) Signup and view all the answers

What type of data is typically queried using SQL?

Structured data (D) Signup and view all the answers

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

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

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

The entire transaction fails (C) Signup and view all the answers

What does the consistency property of ACID ensure?

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

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

Multiple transactions do not interfere with each other (D) 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?

The data stays there 'forever' (A) Signup and view all the answers

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

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

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

Virtual hardware (C) Signup and view all the answers

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

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

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

Guest OS (C) Signup and view all the answers

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

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

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

Hypervisor (B) Signup and view all the answers

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

Easier and less costly storage and retrieval (A) Signup and view all the answers

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

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

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

Abstraction (B) Signup and view all the answers

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

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

What is the benefit of abstraction in Big Data environments?

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

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

Storage virtualization (D) Signup and view all the answers

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

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

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

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

What is a benefit of virtualization for MapReduce tasks?

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

What is a benefit of cloud computing?

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

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

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

What is a benefit of virtualization in terms of security?

Virtualization eliminates the risks of system failure (D) Signup and view all the answers