Question 1

The Internet has been around since 1969.

Accepted Answer

The Internet was created in 1969 by the United States Department of Defense's Advanced Research Projects Agency (ARPA).

Question 2

A disk input/output (I/O) operation is a much slower process than accessing information stored in main memory, sometimes by as much as three or four orders of magnitude._________________________

Accepted Answer

Disk I/O operations involve physically moving the disk drive heads and waiting for the disk to spin to the correct position, making it a slower process compared to accessing information stored in main memory.

Question 3

Each record in a file contains information about an item in the "universe of discourse" that the file describes.

Accepted Answer

Each record in a file represents a unique item in the universe of discourse that the file is covering.

Question 4

Opening an online store requires less planning than building another physical store location.

Accepted Answer

Opening an online store still requires significant planning, including market research, website development, logistics, and marketing strategies, similar to the planning needed for a physical store.

Question 5

Transmission of webpages between a client and server is stateless._________________________

Accepted Answer

Transmission between a client and server is stateless, which means that each request sent by the client is independent from any request that has been sent before, and the server does not keep any record of previous interactions.

Question 6

The Census Bureau of the U.S.Department of Commerce estimated ecommerce retail sales in the United States for the first quarter of 2014 to be $71.2 billion, an increase of 15% from the first quarter of 2013.

Accepted Answer

The statement is true according to the Census Bureau of the U.S.Department of Commerce's estimation.

Question 7

Accessing a record in a large file involves at least three disk input/output (I/O) operations.

Accepted Answer

Accessing a record in a large file typically involves fewer than three disk I/O operations, especially if the file system uses indexing or caching mechanisms to optimize access.

Question 8

In the ____ world, financial transactions are conducted by electronic means.

Accepted Answer

Ecommerce refers to the buying and selling of goods and services over the internet, including financial transactions conducted electronically. While e-transactions, web commerce, and virtual commerce all involve electronic transactions to some extent, they do not specifically refer to online buying and selling like ecommerce does.

Question 9

To manage a relational table, you need only be able to add new tuples to the table and delete tuples from a table.

Accepted Answer

To properly manage a relational table, one must also be able to update existing tuples and retrieve information from the table using queries.

Question 10

Building massive, integrated government databases raises fewer technical questions than legal, political, social, and ethical ones.

Accepted Answer

Building massive, integrated government databases requires careful consideration of legal, political, social, and ethical implications, rather than just technical concerns. Technical issues can often be addressed through appropriate design and implementation, while legal, political, social, and ethical issues require more nuanced and complex solutions.

Question 11

A(n) meta tag is a small text file that the web server sends to the user's browser and that gets stored on the user's hard drive._________________________

Accepted Answer

- cookie

Question 12

You maintain a ____ web presence to streamline transactions between you as the seller and other businesses as buyers.

Accepted Answer

B2B (Business-to-Business) is the correct answer for maintaining a web presence to streamline transactions between a seller and other businesses as buyers. B2B websites are designed specifically for businesses to conduct transactions with one another, such as purchasing products, ordering supplies, or outsourcing services. S2B (Supplier-to-Business), B2S (Business-to-Supplier), and C2B (Consumer-to-Business) are not relevant in this context.

Question 13

The correspondence between primary keys and compound keys is what establishes the relationships among various entities in a database._________________________

Accepted Answer

- foreign

Question 14

To the user, distributed databases look like a single database with fast access times, just like data being accessed on the local machine.

Accepted Answer

The answer of To the user, distributed databases look like...

Question 15

A database management system works much like a simple file manager.

Accepted Answer

A database management system is a software that manages and organizes data in a structured way, unlike a simple file manager that manages files and folders in an unstructured way.

Question 16

The number-one attraction to online shopping is probably ____.

Accepted Answer

Online shopping is convenient as it allows customers to shop anytime and from anywhere without needing to physically visit a store.

Question 17

The SQL command to create a table only requires specification of the various attributes by name and data type.

Accepted Answer

The SQL command to create a table requires not only the specification of the various attributes by name and data type but also constraints (like PRIMARY KEY, NOT NULL, UNIQUE, etc.) as needed to define the table's structure and rules more precisely.

Question 18

____ is an online classified ad site.

Accepted Answer

Craigslist is an online classified ad site where users can post listings for items they want to sell or buy, advertise services they offer, and post job opportunities. It is a popular platform for local transactions and has a wide user base in various cities and countries. The other options, iTunes, PayPal, and Groupon, are not classified ad sites but rather platforms for digital media, online payments, and online deals.

Question 19

Encryption is the process of verifying the identity of the receiver of the data._________________________

Accepted Answer

- Authentication, authentication

Question 20

An ____ will, for a fee, design your website and manage it on an ongoing basis.

Accepted Answer

The answer of An ____ will, for a fee, design...

Quiz 14: Electronic Commerce, Databases, and Personal Privacy