Chapter 4 Flashcards
What does a VPN do?
Creates an encrypted tunnel between a computer connected to the internet and a corporate network.
What are the business benefits of a VPN?
Improved remote connection security
Reduced commuting time for remote users
Improved productivity by allowing people flexibility.
What are the three subdivisions of virtualization?
Server
Network
Storage virtualization
What is it called when data storage is pooled into a single storage device? What are the advantages?
Storage area network. Storage does not have to be physically moved through cable and devices.
What is the advantage of in-memory computing?
It is much faster than disk.
What is referred to as the Internet of Data?
Small sensors to track data and the data is available so that the decision can be quickly made.
What is the main goal of 3D printing? What its current obstactle?
Aims to reduce the turnaround time of an idea into production. Downside is that the materials are expensive.
What are the two most common reasons that organizations adopt cloud-based solutions?
Cost and scalability
Which two distributed file systems have been developed to assist in the managing of large data volume?
Apache Hadoop and Bigtable
What is the main security advantage of using VPN?
Encrypted channel.
Amazon offers platform as a service and infrastructure as a service. Which technology allows this?
Virtualization
What is the name of the technology trend by which you reduce the number of servers to reduce cost?
Virtualization
What does SAN stand for?
Storage area network
Why does Gartner not think today’s organizational data qualifies as big data?
Not high-variety data.
What is the name of the initative that involves a reduction of power and energy usage?
Green computing.
