Nosql Exam Questions With Verified And
Updated Answers
The "Many Sources One View" use case of MongoDB suggests that
a. MongoDB can collect vast amounts of data.
b. MongoDB can store data collected from multiple sources as long as they are the same
format.
c. MongoDB can ingest different types of data from different sources and consolidate it into
one view for all data.
d. MongoDB can store data that is of different types and formats. - answer✔c. MongoDB can
ingest different types of data from different sources and consolidate it into one view for all
data.
What is the name of the fully managed service model that many NoSQL databases now
leverage?
a. Software-as-a-service (SaaS)
b. Network-as-a-service (NaaS)
с. Platform-as-a-service (PaaS)
d. Database-as-a-service (DBaaS) - answer✔d. Database-as-a-service (DBaaS)
What makes Key-Value NoSQL databases powerful for basic CRUD operations?
a.The value blob is opaque.
b. They are represented as a hashmap.
c. They are atomic for key operations.
d. They shard easily across nodes. - answer✔b. They are represented as a hashmap.
Where is the collection created correctly? :
ALL RIGHTS RESERVED.
a. db.createCollections(some)
b. db.collection("some")
c. db.createCollection("some")
d. db.create("some") - answer✔c. db.createCollection("some")
What is the document?
a. None answers correct
b. Document is the equivalent to rows in RDBMS
c. Document is the equivalent to tables in RDBMS
d. In mongoldb document is the log files. - answer✔b. Document is the equivalent to rows in
RDBMS
In MongoDB operations modify the data of a single collection.
a. READ
b. GRID
с. CRUD
d. All of the mentioned - answer✔с. CRUD
What statement is false about naming a database in MongoDB?
a. It must be fewer than 64 characters
b. It cannot contain any of these symbols \."$*<>:|?
c. It can be empty
d. It cannot contain null - answer✔c. It can be empty
What's not included in CRUD operations?
a. delete
b. update
c. write
d. create
ALL RIGHTS RESERVED.
What is the BSON in MongoDB?
a. Binary representation of JSON
b. A query language
c. A backup tool
d. none of the mentioned - answer✔a. Binary representation of JSON
Document databases can't handle transactions that operates over multiple documents.
Select one:
True
False - answer✔True
What is the main aim of NoSQL?
a. NoSQL databases allow storing non-structured data.
b. NoSQL provides an alternative to SQL databases to store textual data.
c. NoSQL is a new data format to store large datasets.
d. NoSQL is not suitable for storing structured data. - answer✔b. NoSQL provides an alternative
to SQL databases to store textual data.
What are the types of NoSQL databases?
a. Key-value stores
b. Graph & Column-oriented databases
с. All of the above
d. Document databases - answer✔с. All of the above
MongoDB documents of a similar type are grouped into
a. A collection
b. An index
c. A replica set
d. A cluster - answer✔a. A collection
Where is the database created correctly? :
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