NoSQL Assessment Answers | LinkedIn Assessment Answers 2022

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NoSQL Assessment Answers | LinkedIn Assessment Answers 2021

Hello LinkedIn Users, Today we are going to share LinkedIn NoSQL Skill Assessment Answers. So, if you are a LinkedIn user, then you must give Skill Assessment Test. This Assessment Skill Test in LinkedIn is totally free and after completion of Assessment, you’ll earn a verified LinkedIn Skill Badge🥇 that will display on your profile and will help you in getting hired by recruiters.

Who can give this Skill Assessment Test?

Any LinkedIn User-

  • Wants to increase chances for getting hire,
  • Wants to Earn LinkedIn Skill Badge🥇🥇,
  • Wants to rank their LinkedIn Profile,
  • Wants to improve their Programming Skills,
  • Anyone interested in improving their whiteboard coding skill,
  • Anyone who wants to become a Software Engineer, SDE, Data Scientist, Machine Learning Engineer etc.,
  • Any students who want to start a career in Data Science,
  • Students who have at least high school knowledge in math and who want to start learning data structures,
  • Any self-taught programmer who missed out on a computer science degree.

Here, you will find NoSQL Quiz Answers in Bold Color which are given below. These answers are updated recently and are 100% correct✅ answers of LinkedIn NoSQL Skill Assessment.

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LinkedIn NoSQL Assessment Answers

Q1. Which types of indexes are available in CosmosDB?

  •  range and spatial
  •  secondary and primary key
  •  secondary and spatial
  •  range and primary key

Q2. You want to connect a DynamoDB stream to AWS Lambda function?

  •  DynamoDB table
  •  DynamoDB trigger
  •  DynamoDB item
  •  DynamoDB index

Q3. To index a field that holds an array value in MongoDB, which index type do you create?

  •  partial
  •  sparse
  •  compound
  •  multikey

Q4. You want to test HBASE on your laptop using the fewest number of steps. What do you do?

  •  Set up Hadoop in pseudo-distributed mode.
  •  Set up HBASE in local mode.
  •  Set up HBASE in pseudo-distributed mode.
  •  Set up Hadoop in local mode.

Q5. You need to create a document database that supports database triggers. Which NoSQL database should you use?

  •  DynamoDB
  •  BigTable
  •  Redis
  •  MongoDB

Q6. What is recommended size for Redis keys?

  •  medium
  •  short
  •  single bit
  •  long

Q7. You need to design security for DynamoDB to allow users read-only access to certain items and attributes in a table. What do you do?

  •  Use lAM policy conditions
  •  Use lAM roles
  •  Use VPC endpoint
  •  Use lAM policies

Q8. What does redis use to sort the elements of a sorted set?

  •  Scores.
  •  Ids.
  •  Values.
  •  Keys.

Q9.You need to change the shard key of an existing MongoDB collection. What do you do?

  •  Dump the collection data, drop the collection, create a new collection and shard key, import the data.
  •  Add second shard key and drop the first shard key.
  •  Dump the collection data, drop the collection, presplit the data, create a new collection and shard key, import the data.
  •  Drop and recreate the shard key.

Q10. Polyglot storage means using multiple types of what in the same application?

  •  Security systems.
  •  Database systems.
  •  Storage systems.
  •  Query systems.

Q11. You need to implement the simplest possible scalable, in-memory cache for your AWS application. Which service do you select?

  •  Elasticache using Memcached.
  •  DynamoDB.
  •  DynamoDB Accelerator (DAX).
  •  Elasticache using Redis.

Q12. You are doing data modelling for Google BigTable. Which statement expresses if and when you should split entities across multiple rows?

  •  Keep all information for an entity in a single row. Store related entities in adjacent rows.
  •  Keep all information for an entity in a single row.
  •  Split entities across multiple rows if the entity data is over thousands of MBs, or if it does not need atomic updates and reads.
  •  Split entities across multiple rows if the entity data is over hundreds of MBs, or if it does not need atomic updates and reads.

Q13. Which two characteristics define Amazon Quantum Ledger Database?

  •  Key-value data model; transactionally consistent with ACID semantics.
  •  Document data model; transactionally consistent with ACID semantics.
  •  Key-value data model; transactions with tunable consistency.
  •  Document data model; transactions with tunable consistency.

Q14. You need to design the primary key for DynamoDB based on three attributes. What do you do?

  •  Designate all three fields as the primary key.
  •  Concatenate all three fields into one new field, then designate that new field as the primary key.
  •  Designate two fields of the three fields as the primary key.
  •  Concatenate two fields into one new field, then designate that new field and the remaining field as the primary key.

Q15. You need to design the primary key for DynamoDB based on three attributes. What do you do?

  •  Designate all three fields as the primary key.
  •  Concatenate all three fields into one new field, then designate that new field as the primary key.
  •  Designate two fields of the three fields as the primary key.
  •  Concatenate two fields into one new field, then designate that new field and the remaining field as the primary key.

Q16. Which of these data types should you avoid in designing a Google Bigtable row key?

  •  multi-valued identifiers
  •  string identifiers
  •  timesstamps
  •  frequently updated identifiers

Q17. Your startup is building a prototype that has an evolving schema. Your data will be eventually consistent. Your application is hosted in AWS. Which databse do you choose?

  •  Neptune
  •  DocumentDB
  •  DynamoDB
  •  Amazon Aurora

Q18. You need to create a scalable databse that allows you to share documents across authorized mobile clients in real time. What Google NoSQL database should you use?

  •  Memorystore
  •  Datastore
  •  Firebase
  •  Bigtable

Q19. You want to test HBase on your laptop using the fewest number of steps. What do you do?

  •  Set up HBase in local mode.
  •  Set up Hadoop in pseudo-distributed mode.
  •  Set up HBase in pseudo-distributed mode.
  •  Set up Hadoop in local mode.

Q20. You need to design security for DynamoDB to allow users read-obly access to certain items and attriutes in a table. What do you do?

  •  Use IAM roles.
  •  Use IAM plicy conditions.
  •  Use a VPC endpoint.
  •  Use IAM plicies.

Q21. You need to design a primary key for DynamoDb based on three attributes. What do you do?

  •  Concatenate all three fields into into one new field, than disignate that new field as the primary key.
  •  Concatenate two fileds into one new field, than disignate that new field and the remaining field as the primary key.
  •  Designate all three fields as the primary key.
  •  Designate two filds of the three fields as the primary key.

Q22. What does Redis use to sort the elements of a sorted set?

  •  keys
  •  values
  •  scroes
  •  ids

Q23. You need to create a document database that supports database triggers. Which NoSQL database should you use?

  •  DynamoDb
  •  Redis
  •  MongoDB
  •  Bigtable

Q24. Which statement is prefered Cypher code for Neo4j?

  •  MATCH (:Person)–>(:Card)–>(:Company) RETURN count(vehicle)
  •  Match (:Person)–>(:Car):(vehicle:Car)–>(:Company) RETURN count(vehicle)
  •  MATCH (:Person)–>(vehicle:Car)–>(:Company) RETURN count(vehicle)
  •  MATCH (:Person)–>(:Card), (vehicle:Car)–>(:Company) RETURN count(vehicle)

Q25. You need multi-item ACID transactions with snapshot isolation within a partition for your cloud-based application. Which NoSQL databse do you choose?

  •  Bigtable
  •  GraphDB
  •  DynamoDB
  •  Cosmos DB

Q26. You need to control your application’s batch updates destination for your Bigtable multinode cluster. Which action do you take?

  •  Create a custom app profile to route batch updates.
  •  Create a custom app profile to route the batch update from that client.
  •  Update the default app profile to route the natch update from that client.
  •  Use the default app profile to route batch updates.

Q27. Polyglot storage mean using multiple types of what in the same application?

  •  security systems
  •  databse systems
  •  query systems
  •  storage systems

Q28. Your query to verify that your Redis key is configured to support expiring user information on a defined interval returns -2, What does this value indicate?

  •  The queried key value expired in the last two secodns.
  •  The queried key value exists, but has no associated expire value.
  •  The queried key value does not exist.
  •  There are two expired keys with this value.

Q29. You are designing a MongoDB schema to support queries that will include lookups. What should you do?

  •  Create an index on the key value used as the primary key.
  •  Create an index on the key value used as the foreign key.
  •  Create a multicolumn index on the key value used as the foreign key and the most unique column in the document.
  •  Create a multicolumn index on the key value used as the primary and also the forign key.

Q30. What is the aggregation operator for a join concept in MongoDB?

  •  $group
  •  $match
  •  $lookup
  •  $project

Q31. For your mobile application, you need to select a Google cloud databse that can support compound, filtered document queries. Which do you choose?

  •  Cloud SQL
  •  Cloud Spanner
  •  Cloud Firestore
  •  Cloud Firebase

Q32. To bulk load data into Amazon Neputn, what do you do?

  •  Upload data to S3 VPC endpoint, Use the Neptun loader to load from s3 into your Neptune instance
  •  Ad data to a Kinesis stream, and use the Neptune loade to load from S# into your Neptun instance.
  •  Add data to a Kisnesis stream, and create a Kinesis stream VPC endpoint. Use the Nepune loader to load from S3into your Neptune instance.
  •  Upload data to S Use the neptune loader to load from S3 into your Neptune instance.

Q33. You need to create a pub/sub server. Which databse do you use?

  •  Neo4j
  •  Cassandra
  •  Redis
  •  MyS#### QL

Q34. You want to connect a DynamoDb stream to an AWS lamdba function. Which one of these object do you create.

  •  DynamoDb table
  •  DynamoDB trigger
  •  DynamoDB item
  •  DYnamoDB index

Q35. Which two types of indexes are available in Cosmos DB?

  •  secondery and primary key
  •  secondary and spatial
  •  range and spatial
  •  range and primary key

Q36. SQL databses and NoSQL are which types of scalable?

  •  horizontally, infinitely
  •  vertically, horizontally
  •  vertically, infinitely
  •  horizonally, vertically

Q37. You need to create a scalable database that allows you to query data nodes and edges efficiently. What do you use?

  •  a relational databse
  •  a columnstore databse
  •  a document databse
  •  a graph database

Q38. You are developing a model for a graph databse. Your data will be moved from a relatinal databse into Neo4j. Which of these transformations apply?

  •  Rows become labes: bales become nodes.
  •  Tables become labels: rows become nodes.
  •  Tables become collections: rows become items.
  •  Rows become collections: tables become items.

Q39. To index a field that holds an array value in MongoDB, which index type do you create?

  •  sparse
  •  compound
  •  partial
  •  multikey

Q40. You need to execute a command for MongoDB that does NOT load values from the .mongorc.js file. What do you do ?

  •  Delete the .monorc.js file and restart mongo shell.
  •  Use the mongo shell to create a command with –norc option
  •  Rem all lines in the .mongorc.js file ad restart mongo shell.
  •  Use the mongo shell to create a command with –nodedefault option.

Q41. What is the recommended size for Redis keys?

  •  long
  •  short
  •  medium
  •  a single bit

Q42. You need to store an unordered collection of name-value pairs with differing data types in DynamoDB. Which data type should you choose?

  •  map
  •  set
  •  list
  •  stack

Q43. Which statement retrieves an item from the MusicCollection table in DynamoDB?

  •  aws dynamodb query –table-name MusicCollection –key file://key.json
  •  aws dynamodb get-item –table-name MusicCollection –key file://key.json
  •  aws dynamodb select –table-name MusicCollection –key file://key.json
  •  aws dynamodb put-item –table-name MusicCollection –key file://key.json

Q44. Database availability is measured by which metric?

  •  the amount of service calls
  •  the number of minutes
  •  the amount of service costs
  •  the number of nines

Q45. You need to encrypt data at rest in DynamoDB. Which action do you take?

  •  You assign a default AWS encryption key to your table to encrypt data.
  •  You create an AWS encryption key and assign it to your table to encrypt data.
  •  None. Data is encrypted by default.
  •  You create an AWS encryption key and assign it to your database to encrypt data.

Q46. You need to generate a unique, sequential identifier for each value stored in a Redis cluster. What do you do?

  •  Implement a SortedSet object to generate a value.
  •  Use the GUID keyword to generate a value.
  •  Implement a List object to generate a value.
  •  Use the INCR keyword to generate a value

Q47. You want to return a list of all elements in two Redis sets. Which keyword do you use?

  •  smembers
  •  returnall
  •  sunion
  •  sismember

Q48. Which method shows you whether MongoDB uses any indexes when running a query, and how the indexes are used?

  •  detailQueryExecution()
  •  showPlan()
  •  explain()
  •  describe()

Q49. Which statement accurately describes global secondary indexes in DynamoDB?

  •  The global secondary indexes in DynamoDB are consistent, and are not guaranteed to return correct results.
  •  The global secondary indexes in DynamoDB are transactionally consistent, and are guaranteed to return correct results.
  •  The global secondary indexes in DynamoDB are partially consistent, and are not guaranteed to return correct results.
  •  The global secondary indexes in DynamoDB are eventually consistent, and are not guaranteed to return correct results.

Q50. Which command do you use to add a value to a Redis stream named mystream?

  •  ADD mystream * sensor-id 1234 temperature 19.8 1518951480106-1
  •  UPDATE mystream * sensor-id 1234 temperature 19.8 1518951480106-3
  •  XADD mystream * sensor-id 1234 temperature 9.8 1518951480106-0
  •  INSERT mystream * sensor-d 1234 temperature 19.8 15181480106-2

Q51. Which code example completes this statement and creates an index for a MongoDB object named restaurants, sorted ascending by the field name?
var indexCollection = function(db) {return co(function*() {…});};

  •  const results = yield db.table(‘restaurants’).createIndex({“name”: 1}, null); return results;
  •  const results = yield db.collection(‘restaurants’).createIndex({“name”: 0}, null); return results;
  •  const results = yield db.collection(‘restaurants’).createIndex({“name”: 1}, null); return results;
  •  const results = yield db.table(‘restaurants’).createIndex({“name”: 0}, null); return results;

Conclusion

Hopefully, this article will be useful for you to find all the Answers of NoSQL Skill Assessment available on LinkedIn for free and grab some premium knowledge with less effort. If this article really helped you in any way then make sure to share it with your friends on social media and let them also know about this amazing Skill Assessment Test. You can also check out our other course Answers. So, be with us guys we will share a lot more free courses and their exam/quiz solutions also and follow our Techno-RJ Blog for more updates.

FAQs

Is this Skill Assessment Test is free?

Yes NoSQL Assessment Quiz is totally free on LinkedIn for you. The only thing is needed i.e. your dedication towards learning.

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Yes, if will Pass the Skill Assessment Test, then you will earn a skill badge that will reflect in your LinkedIn profile. For passing in LinkedIn Skill Assessment, you must score 70% or higher, then only you will get you skill badge.

How to participate in skill quiz assessment?

It’s good practice to update and tweak your LinkedIn profile every few months. After all, life is dynamic and (I hope) you’re always learning new skills. You will notice a button under the Skills & Endorsements tab within your LinkedIn Profile: ‘Take skill quiz.‘ Upon clicking, you will choose your desire skill test quiz and complete your assessment.

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