Mongodb

Quiz
•
Education
•
University
•
Hard
nguyen thientu
Used 10+ times
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59 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
MongoDB is one of the leading NoSQL databases?
False
True
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
MongoDB indexes use a _______ data structure.
B-tree
All of the mentioned
Hash
Map
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Consider a one-to-many relationship observed between a county and the cities in that county. Which of the following are valid ways to represent this one-to-many relationship with the document model in MongoDB?
document having a field to reference the document of its county.
Embed the entities for the cities as an array of sub-documents in the corresponding county document.
Embed all the fields for a city as a subdocument in the corresponding county document.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not part of the first phase of the data modeling methodology?
Identifying the durability of each write operation.
Listing the write operations.
Listing the read operations.
Quantifying each of the operations in terms of latency and frequency
Identifying the relationships between the units of data.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
_______ scaling adds more CPU and storage resources to increase capacity.
All of the mentioned
Horizontal
Vertical
Partition
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following pattern is best for static trees that do not change?
Root
Parent
Child
None of the mentioned
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The ________ References pattern stores each tree node in a document; in addition to the tree node, the document stores the id of the node’s parent.
Root
Child
None of the mentioned
Parent
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