CISD42 Midterm

Compliance means More control of compliance with regulations such as HIPAA and PCI An advantage of cloud computing Concerns when Big Data is stored inside the domain A challenge of a combination of cloud computing and Big Data that should be overcome

A challenge of a combination of cloud computing and Big Data that should be overcome

Which operator is used to select values within a range? WITHIN RANGE BETWEEN

BETWEEN

In which of the following is velocity an important dimension of: Banking Communication Manufacturing Government

Banking

Which SQL statement is used to create a database table called 'Customers'? CREATE DATABASE TAB Customers CREATE DATABASE TABLE Customers CREATE TABLE Customers CREATE DB Customers

CREATE TABLE Customers

Which SQL statement is used to delete data from a database? REMOVE DELETE COLLAPSE

DELETE

With SQL, how can you delete the records where the "FirstName" is "Peter" in the Persons Table? DELETE FROM Persons WHERE FirstName = 'Peter' DELETE ROW FirstName='Peter' FROM Persons DELETE FirstName='Peter' FROM Persons

DELETE FROM Persons WHERE FirstName = 'Peter'

Which fo the following statemnent is true: Encryption shows the information's true meaning. Google's Dataproc is used for traditional data. Dataproc cluster can not run open-source. cDataproc cluster offers security and encryption.

Dataproc cluster offers security and encryption.

With SQL, how can you return the number of records in the "Persons" table? SELECT COLUMNS( **) FROM Persons SELECT COUNT( **) FROM Persons SELECT LEN( **) FROM Persons SELECT NO( **) FROM Persons

ELECT COUNT(*) FROM Persons

Big Data and cloud computing technologies provide data processing at a high cost and complicated solutions. True or False

False

Data warehouses store undsructured data generated by business transaction in normalized tables for further data processing and analytics. True or False

False

The first step of creating a Hadoop cluster on AWS is setting the cluster from the "EMR" tab under "Analytics" in AWS console. True or False

False

Veracity, which refers to the biases, noise , and abnormality in data, is the other attribute that distinguishes Big Data. Ture or False

False

What is the most common type of join? JOINED JOINED TABLE INNER JOIN INSIDE JOIN

INNER JOIN

Which SQL statement is used to insert new data in a database? ADD RECORD ADD NEW INSERT INTO INSERT NEW

INSERT INTO

With SQL , how can you insert "Olsen" as the "LastName" in the "Persons" table? INSERT INTO Persons (LastName) VALUES ('Olsen') INSERT ('Olsen') INTO Persons (LastName) INSERT INTO Persons ('Olsen') INTO LastName

INSERT INTO Persons (LastName) VALUES ('Olsen')

With SQL, how can you insert a new record into the "Persons" table? INSERT INTO Persons VALUES ('Jimmy', 'Jackson') INSERT ('Jimmy', 'Jackson') INTO Persons INSERT VALUES ('Jimmy', 'Jackson') INTO Persons

INSERT INTO Persons VALUES ('Jimmy', 'Jackson')

Which operator is used to search for a specified pattern in a column? GET FROM LIKE

LIKE

Which SQL keyword is used to sort the result-set? ORDER BY ORDER SORT BY SORT

ORDER BY

Big Data Analytics is used in : (choose all tha apply) Package delivery to forecast the traffic Online dating, for matching people on dates consistently Sports analytics for winner forecast Smart cities and ecological movements

Online dating, for matching people on dates consistently Smart cities and ecological movements

Which of the following statements are true: (choose all that apply) Organizations that use cloud computing services can scale-out or can scale-in to either grow or reduce their Big Data Analytics capacity as business needs change. Organizations that use cloud computing services have to set up their security policies themselves. Organizations can deploy the latest version of Big Data software over a long period. Organization pay for Big Data technologies as they consume them, just as they would pay other utilities.

Organization pay for Big Data technologies as they consume them, just as they would pay other utilities. Organization pay for Big Data technologies as they consume them, just as they would pay other utilities.

Platfrom as a service. Provides Hardware and software Includes Salesforce, Oracle, Microsoft Replaces an entire infrastructure Provides the highest level of flexibility

Provides Hardware and software

Which of the following is not an API of the Hadoop ecosystem: Python HBase Pig Hive

Python

Which SQL statement is used to extract data from a database? GET OPEN SELECT EXTRACT

SELECT

With SQL, how do you select all the columns from a table named "Persons"? SELECT Persons SELECT [all] FROM Persons SELECT . Persons SELECT * FROM Persons

SELECT * FROM Persons

With SQL , how can you return all the records from a table named "Persons" sorted descending by "FirstName"? SELECT * FROM Persons SORT BY 'FirstName' DESC SELECT * FROM Persons ORDER FirstName DESC SELECT * FROM Persons SORT 'FirstName' DESC SELECT * FROM Persons ORDER BY FirstName DESC

SELECT * FROM Persons ORDER BY FirstName DESC

With SQL, how do you select all the records from a table name "Persons where the value of the column "FirstName" starts with a "a" ? SELECT ** FROM Persons WHERE FirstName='a' SELECT ** FROM Persons WHERE FirstName LIKE 'a%' SELECT ** FROM Persons WHERE FirstName LIKE '%a' SELECT ** FROM Persons WHERE FirstName='%a%'

SELECT * FROM Persons WHERE FirstName LIKE 'a%

With SQL, how do you select all the records from a table named "Persons" where the value of the colum "FirstName" is "Peter"? SELECT ** FROM Persons WHERE FirstName<>'Peter' SELECT [all] FROM Persons WHERE FirstName='Peter' SELECT [all] FROM Persons WHERE FirstName LIKE 'Peter' SELECT ** FROM Persons WHERE FirstName='Peter'

SELECT * FROM Persons WHERE FirstName='Peter'

With SQL, how do you select all the records from a table named "Persons where the "LastName" is alphabetically between (and including) "Hansen" and "Petterson"? SELECT LastName>'Hansen' AND LastName<'Pettersen' FROM Persons SELECT all FROM Persons WHERE LastName>'Hansen' AND LastName<'Pettersen' SELECT * FROM Persons WHERE LastName BETWEEN 'Hansen' AND 'Pettersen' SELECT * FROM Persons WHERE LastName BETWEEN 'Hansen' and 'Petterson';

SELECT * FROM Persons WHERE LastName BETWEEN 'Hansen' and 'Petterson';

Which SQL statement is used to return only different values? SELECT DIFFERENT SELECT ONEONLY SELECT DISTINCT

SELECT DISTINCT

With SQL, how do you select a column named "FirstName" from a table named "Persons"? EXTRACT FirstName FROM Persons SELECT Persons.FirstName SELECT FirstName FROM Persons;

SELECT FirstName FROM Persons;

With SQL how do you select all the records from the table named "Persons" where the "FirstName" is "Peter" and the "LastName" is "Jackson"? Select * from Persons Wherer FirstName='Peter' AND LastName='Jackson' SELECT * FROM Persons WHERE FirstName<>'Peter' AND LastName<>'Jackson' SELECT FirstName='Peter', LastName='Jackson' FROM Persons

Select * from Persons Where FirstName='Peter' AND LastName='Jackson'

Which fo the following is not a source of structured data: -Customer Relationship Management -Human Resource systems -Inventory systems -Social media data

Social media data

What does SQL stand for: Structured Question Language Strong Question Language Structured Query Language

Structured Query Language

Benefits of performing Big Data in the cloud include: (choose all that apply) Organizations can scale-out or can scale-in to either grow or reduce their Big Data Analytics capacity. Companies would have to set up their user access policies, installing firewalls, and antivirus software to guard them against cyber threats. The variable expenses are lower Organizations cannot access a broad range of Big Data technologies.

The variable expenses are lower The variable expenses are lower

Cloud computing services offer several benefits to organizations: True of False

True

MapReduce is a programming framework that allows the processing of large distributed datasets and aggregates the results in a short amount of time. True or False

True

NoSQL Databases are used for unstructured or schema-free datasets. True or False

True

The NOT NULL constraint enforces a column to not accept NULL values. True or False

True

The OR operator displays a record if ANY conditions listed are true. The AND operator displays a record if ALL of the conditions listed are true? True False

True

Three major categories of cloud-computing applications are Software as a Service, Platform as a Servive, Infastructure as a Service. True or False

True

Velocity is one of the 3 Vs of Big Data. True or False

True

Which SQL statement is used to update data in a database? UPDATE SAVE AS MODIFY SAVE

UPDATE

How can you change "Hanse" into "Nilsen" in the LastName" column in the "Persons" table? UPDATE Persons SET LastName='Nilsen' WHERE LastName='Hansen' MODIFY Persons SET LastName='Nilsen' WHERE LastName='Hansen' MODIFY Persons SET LastName='Hansen' INTO LastName='Nilsen UPDATE Persons SET LastName='Hansen' INTO LastName='Nilsen'

UPDATE Persons SET LastName='Nilsen' WHERE LastName='Hansen'

Which of the following serve as attributes that distinguish Big Data: - Volume, Variety, Velocity, Value, Veracity -Volume, Veracity, Value, Variety -Velocity, Veracity, Value -Volume, Velocity, Variety

Volume, Velocity, Variety

Which fo the following is true about Software as a Service: offer end-user applications provides the highest level of flexibility and control over the organization's IT resources offers full support (hardware and software) does not replace the entire IT infrastructure

offer end-user applications