Final Answer:
The challenge of big data storage characterized by the need to make data accessible from anywhere at anytime is known as "Accessibility."
Step-by-step explanation:
Accessibility in the context of big data refers to the ease with which users can access and interact with data, regardless of their geographical location or what device they are using.
This is an important aspect because data is only valuable if it is reachable by those who need to analyze it or make decisions based on that data.
Ensuring accessibility can involve several strategies, such as:
1. Using cloud storage solutions to host data, which can be reached over the internet from virtually anywhere.
2. Implementing proper authentication and authorization mechanisms to control who has access to what data.
3. Designing data systems with redundant and reliable connections to prevent downtime and ensure data can always be accessed when needed.
By focusing on accessibility, organizations can ensure that their decision-makers and analysts have the data they need at their fingertips, leading to better and more informed decisions.
So, accessibility is challenge of big data storage is characterized by the need to make data accessible from anywhere at anytime.