Chapter 13

Hackers pose the only real risk to database security.

False

A database backup can include information on who made what changes and when since the previous database backup.

true

Some nonrelational databases support SQL-based languages.

true

A national bank processes approximately 1,500 transactions per second. The fact that the bank's database must add this many Big Data records every second refers to its high _________.

velocity

What characteristic of Big Data indicates how closely that data matches reality?

veracity

Jenson needs to update his home address in his health insurance company's database. Which of the following applications can he open on his computer so he can make these changes?

A browser

Which data type would be best suited to a field that lists a product's clearance price?

Currency

Which of the following fields would be most important to encrypt in a customer table?

Customer's credit card number

Morgan needs to hire someone to help implement a business intelligence system for her company. What type of professional would be the best fit for this job?

Data Analyst

Which type of data storage allows for the most variety of data types?

Data lake

Which of the following job roles would most likely need permission to delete records in a Customers table?

Database administator

Which of the following is LEAST likely to be a field in a Customers table?

EmploymentDate

Which of the following scenarios would most likely rely on Big Data? Choose two.

Evaluating applications for disability benefits, Calculating traffic delays during rush hour

Mindy needs to run a SQL query that will pull the names and birthdates of all her students. What should the FROM phrase say in her query?

FROM Students

Aron is building a website that will require a back-end database. He plans to connect the web server on his network in a way that it will be easily accessible from the Internet. He should connect his database server the same way so data in the database is readily accessible to the web server.

False

Open source DBMSs are insecure because users are allowed to see the software's code.

False

Raphael is working with a table in Access. He needs to see all the records for customers in Chattanooga so he can check the zip codes in that city. Which database tool will show only these records in the table?

Filter

Students who complete an online test are not allowed to change their test grades. What aspect of the CIA triad is at work here?

Integrity

Which of the following is a key aspect of database security according to the CIA triad security model? Choose two.

Integrity, Availability, Confidentiality

What kind of database is needed to hold and organize diverse data types, such as X-ray images and doctors' notes, in a medical database?

Nonrelational database

Which of the following is NOT an RDBMS?

Oracle NoSQL Database

Casey is looking for a free, open-source RDBMS for his company. Which of the following best meets these requirements?

PostgreSQL

Dana is creating a table that will show books for sale on a bookstore's website. Which field in the table would best serve as its primary key?

ProductID

Rafael needs to run a query that will show the name and city of all his clients. Which of the following phrases will determine which fields are returned in the query?

SELECT, name/city

Kiera is building a front-end user interface for the database her new website will use. Which of the following languages is NOT used to build a webpage?

SQL

What programming language supports relational databases?

SQL

Which of the following tables in a database would NOT need to be encrypted?

Store_Locations

The volume of Big Data generated over time is typically measured in terms of ____________.

Terrabytes

One of Eden's customers has closed his account and moved to a different state. She needs to change his status to Inactive. What SQL command will accomplish this task?

Update

A national bank processes approximately 1,500 transactions per second. The fact that the bank's database must add this many Big Data records every second refers to its high _________.

Velocity

Ibraheem works for a music store. Which of the following tables will give him the company contact information he needs to place a custom order for a guitar?

Vendors

Kim is writing a SQL query that will pull a list of customers with outstanding orders and the sales rep for each order. What should the WHERE phrase say in her query?

WHERE OrderStatus = Pending

Which of the following would most likely be a key in a key-value database of investment properties owned by a company?

ZoneType

Which of these tasks is a non-technical user most likely to have the right to perform in a database?

add new data

During a thunderstorm, the database server for Jason's store loses power. This is an example of failed _________.

availibility

All the pet names in a veterinarian's database are stored in a _______ called PetName.

field

Which data type would be best suited to a field that lists customer email addresses?

hyperlink

Darcie has hired a programmer to make some custom changes to a DBMS she plans to move her business database to. What kind of DBMS is she using?

open source

Kian needs to sort a list of patients by birthdate to show the oldest patients first. What sort order on the birthdate field will give him this result?

smallest to largest

Scarlet needs to create a file to hold a list of expenses for an upcoming project, and she needs to do some basic calculations with the numbers in the budget. Which kind of file is the best fit for this purpose?

spreadsheet

Which field could serve as the primary key for a list of students in your school?

student ID number

Sawyer is looking at a table of students in his class, but it seems like the list is way too short. What is the most likely problem?

the table is filtered