Exam (elaborations)
NoSQL DB Exam Topics With Complete Solutions
- Module
- Institution
NoSQL DB Exam Topics With Complete Solutions...
[Show more]
Seller
Follow
Easton
Reviews received
Content preview
NoSQL DB Exam Topics With Complete SolutionsWhat are the 4 NoSQL Data models - ANSWER Key-value, graph database,
document-oriented, and column family
What is the CAP Theorem - ANSWER CAP stands for Consistency, Availability, Partition
Tolerance. CAP theorem states only 2 of these 3 concepts can be achieved
simultaneously, not all 3.
Big Data can be understood through the 3 V's, what are they - ANSWER Volume, variety,
velocity
What are 5 ways NoSQL differs from RDB - ANSWER 1. looser schema definition
2. Applications written to deal with specific documents, objects or data from the DB
3. Designed to handle distributed, large DBs
4. No strong support for ad hoc queries but designed for speed and growth of DB(query
language through APIs)
5. Relaxation of the ACID properties
What does sharding do - ANSWER distributes a single logical data collection across a
cluster of machines, the data is partitioned horizontally
What is a Shard - ANSWER The collection of data objects on a specific DB server
Hot spots can be addressed by - ANSWER sharding
What can redundancy do for replica sets - ANSWER create multiple paths to the same
object
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Easton. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £11.31. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now