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WorksheetsCS: Internet Really!
Total questions: 21
Worksheet time: 32mins
Name
Class
Date
1.
Which of the following activities poses the greatest personal cybersecurity risk?
a)
Making a purchase at an online store that uses public key encryption to transmit credit card information
b)
Paying a bill using a secure electronic payment system
c)
Reserving a hotel room by e-mailing a credit card number to a hotel.
d)
Withdrawing money from a bank account using an automated teller machine (ATM)
2.
What is an Event?
a)
An action that causes something to happen
b)
An action that doesn’t do anything in the App
c)
An action that will allow you to look up and event
d)
Something that is happening in the calendar
3.
Which of the following is an IP address?
a)
www.google.com
b)
192.168.2.25
c)
1024.2048.64.512.256
d)
A5:D4:23:56:FF:A4
4.
What is the purpose of DNS?
a)
It assigns a unique address to every device on the Internet.
b)
It returns the IP address given the name of a website.
c)
It forwards a message from one machine to another.
d)
It has more bits so you can make a longer, unique address.
5.
Which of the following is LEAST likely to indicate a phishing attack?
a)
An e-mail from your bank asks you to call the number on your card to verify a transaction
b)
An e-mail from a merchant asks that you click on a link to reset your password
c)
An e-mail from a utility company asks you to enter your date of birth and social security number for verification purposes.
d)
An e-mail indicates that you have won a large sum of money and asks you to enter your bank account number so that the money can be transferred to you
6.
Which of the following is considered an unethical use of computer resources?
a)
Downloading freeware or shareware onto your home computer
b)
Purchasing a game from an app store and downloading it directly to a mobile device
c)
Purchasing a single-user copy of photo editing software and installing it on all computers in a computer lab
d)
Searching online for an electronic version of a school textbook
7.
A user enters a Web address in a browser, and a request for a file is sent to a Web server. Which of the following best describes how the file is sent to the user?
a)
The file is broken into packets for transmission. The packets must be reassembled upon receipt.
b)
The file is broken into packets for transmission. The user’s browser must request each packet in order until all packets are received.
c)
The server attempts to connect directly to the user’s computer. If the connection is successful, the entire file is sent. If the connection is unsuccessful, an error message is sent to the user.
d)
The server repeatedly attempts to connect directly to the user’s computer until a connection is made. Once the connection is made, the entire file is sent.
8.
Two computers are built by different manufacturers. One is running a Web server and the other is running a Web browser. Which of the following best describes the ability of the two computers to communicate with each other across the Internet?
a)
The computers cannot communicate because different manufacturers use different communication protocols.
b)
The computers can communicate, but additional hardware is needed to convert data packets from one computer’s protocol to the other computer’s protocol.
c)
The computers can communicate directly only if the messages consist of text; other formats cannot be interpreted across computers.
d)
The computers can communicate directly because Internet communication uses standard protocols.
9.
Which of the following has the greatest potential for compromising a user’s personal privacy?
a)
A group of cookies stored by the user’s Web browser
b)
The Internet Protocol (IP) address of the user’s computer
c)
The user’s e-mail address
d)
The user’s public key used for encryption
10.
Both online newspapers and social media sites are used to distribute information on the Internet. Which of the following best describes an advantage that online newspapers have over social media sites?
a)
The ability to distribute information instantaneously
b)
The ability to provide credibility to the information distributed
c)
The ability to provide information that is widely accessible
d)
The ability to provide media-rich content for low cost
11.
A program is expressed in a programming language. Which of the following is true of the program?
a)
The program can also be expressed as binary code, but will be more easily understood by humans when expressed in a higher-level programming language.
b)
The program can also be expressed as binary code, which will reduce the likelihood of errors.
c)
The program cannot be expressed as binary code, because binary code can only be used to represent data.
d)
Some parts of the program can be expressed as binary code, but operations must be expressed using a higher-level programming language.
12.
What is the 4-bit binary number for the decimal number Ten (10)?
a)
0010
b)
1010
c)
0110
d)
0101
13.
Select the answer that lists the units of bytes in ascending order (from smallest to largest)
a)
Gigabyte, megabyte, terabyte
b)
Megabyte, terabyte, kilobyte
c)
Gigabyte, terabyte, megabyte
d)
Kilobyte, gigabyte, terabyte
14.
Approximately how much bigger (how many more bytes) is a megabyte than a kilobyte?
a)
1,000 times bigger
b)
100,000 times bigger
c)
1,000,000 times bigger
d)
1,000,000,000 times bigger
15.
Which of the following best explains what happens when a new device is connected to the Internet?
a)
A device driver is assigned to the device.
b)
An Internet Protocol (IP) address is assigned to the device.
c)
A packet number is assigned to the device.
d)
A Web site is assigned to the device.
16.
How many different digits are used in the Hexadecimal number system?
a)
2
b)
10
c)
8
d)
16
17.
What is the domain of this URL:www.example.com/home.html
a)
www
b)
home.html
c)
www.example.com
d)
HTML
18.
Consider the process of encoding and decoding a message using the following Caesar cipher encoding scheme in which the plaintext and ciphertext alphabets are offset by four positions, as shown above.
Which of the following encoded ciphertext strings decodes to an original plaintext message of “secret”?
a)
ersecr
b)
wigvix
c)
kwujwl
d)
oaynap
19.
What is the decimal equivalent of 11010011?
a)
211
b)
210
c)
209
d)
208
20.
What does HTTP stand for?
a)
Hypertalk Talking Protocol
b)
HyperText Transmission Protocol
c)
Hypertext Transferable Protocol
d)
HyperText Transfer Protocol
21.
What is % in Python?
a)
Square Root
b)
Modulus
c)
Add
d)
Square Root
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