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WorksheetsAP CSP 9-18 - UNIT 1 and 2
Total questions: 100
Worksheet time: 1hrs 9mins
A chromebook is an example of a
computing system
computing network
path
computing device
A _______ is a group of computing devices and programs working together for a common purpose.
computing system
HyperText Markup Language
path
user datagram protocol
A sequence of directly-connected computing devices beginning at the sender and ending at the receiver is called a (a) .
A group of interconnected computing devices capable of sending or receiving data.
computing network
IP Address
DNS
router
What is the MINIMUM number of paths that would need to be broken to prevent Computing Device A from connecting with Computing Device D?
1
2
3
4
Pick the two statements that are true about the Internet Protocol (IP)
Each device or computer on the Internet is assigned a unique IP address.
Each network on the Internet uses its own protocol to address messages.
IP is the shared way that all devices and computers label their messages with the sender and receiver's addresses.
IP is a secret protocol shared between the sender and receiver.
In order to communicate two devices on the Internet must have the same IP address.
What is one potential downside to making a network fault-tolerant?
It will only cause computing devices to crash more often.
It may be more expensive to build.
It might make the network run slower.
Only certain computing devices can run on fault-tolerant networks.
Which of the following is true regarding the way information is transmitted on the Internet?
Information flows on a dedicated direct connection from the sender's device to the receiver's device using binary electrical signals.
If a single packet is dropped, the entire file must be resent.
Because of the reliability of the Internet, packets always arrive in the same order they were sent.
Information does not travel in one piece, but rather as a datastream of packets.
Rules for addressing and sending data across the internet by assigning unique numbers to each connected device is called
Packets
User Datagram Protocol
Transmission Control Protocol
Internet Protocol
Takes inventory of all packets in the datastream to ensure they are successfully sent and received.
Packets
User Datagram Protocol
Transmission Control Protocol
Internet Protocol
Chunk of data and its metadata, used to route and reassemble information on the Internet.
Packets
User Datagram Protocol
Transmission Control Protocol
Internet Protocol
Sends all packets without checking whether they were received or ordered properly
Packets
User Datagram Protocol
Transmission Control Protocol
Internet Protocol
Choose the two statements that best describe the relationship between HTTP and the World Wide Web
The World Wide Web is a protocol used for sharing HTTP messages
The World Wide Web is a collection of pages and files that is shared between computers using HTTP
Computers will send information using either HTTP or the World Wide Web, but not both.
HTTP and the World Wide Web both rely on other layers of protocols for sending information on the Internet
The (a) Name System translates website names like code.org or example.com into IP addresses.
A packet that travels from device A to device B will always use the same exact path.
True
False
The Internet Protocols change as more devices are added to the network.
True
False
Packet metadata includes all of the following except
sender IP address
information about the order of the packet
a copy of the original packet data
receiver IP address
Which of the following is TRUE about packets?
Packets may arrive out of order
If one packet is dropped then none of the packets will arrive at the destination
Only some information sent through the internet is placed into packets.
Only important packets include metadata
Which protocol uses GET and POST requests to access pages on the World Wide Web?
Transmission Control Protocol (TCP)
HyperText Transfer Protocol (HTTP)
Internet Protocol (IP)
User Datagram Protocol (UDP)
Which is true about redundancy?
It costs less to build a redundant network
In redundant networks, when one device fails the entire system fails
Redundant networks only have one path between each device
Redundant network have increased reliability and fault-tolerance.
The world is currently in a transition to using IPv6, a newer version of the IP protocol that uses 128-bit addresses instead of 32-bit addresses used by IPv4. What is the main problem that IPv6 was created to solve?
32-bit addresses could not accommodate the increased size and amount of data traveling on the Internet as it has grown in popularity
IPv6 will allow problems with IPv4's address hierarchy to be resolved
IPv4 proved unreliable in some cases where network redundancy could not be ensured
32-bit addresses could not ensure that every internet-connected device can receive a unique IP address
What does this image portray?
IP addresses
meta data
packets
HTTP
What is NOT an outcome of the digital divide?
all political groups can agree on digital regulations
all people will have greater access/influence
racial/enthnic groups have unequal access to technology
Ryan is designing an app that needs to quickly send low quality photos between users. Most smartphones take much higher quality photos than Ryan needs for his app. Which answer best describes the type of compression Ryan should choose and why?
Lossless compression since it ensures perfect reconstruction of the photo.
Lossy compression since it ensures perfect reconstruction of the photo.
Lossless compression since it typically results in smaller data sizes.
Lossy compression since it typically results in smaller data sizes.
When visiting a museum Sue takes a photo of a painting with a smartphone which stores the photo as an image file. Which of the following best describes the differences between the painting itself and the photo of the painting stored on the smartphone?
Both the painting and the photo are analog
Sampling can be used to determine whether the analog image is an accurate representation of the painting
The phone can represent the photo in either digital or analog formats depending on the sampling technique that is used
The photo is a digital representation of the analog painting
How many numbers can be represented with an 8-bit binary system?
255
256
128
127
Lisa takes a picture with her smartphone which she subsequently posts online. Allen finds the picture online and posts a copy of it on his website with an attached Creative Commons license. Which of the following best describes who owns the photo?
Allen owns the photo because only holders of a Creative Commons license can own works online.
Lisa owns the photo because she was the original creator and did not license the work.
Lisa owns the photo because it was granted a Creative Commons license by another person online.
Both own the photo because creating a copy makes it her intellectual property.
Ryan is designing an app that needs to quickly send low quality photos between users. Most smartphones take much higher quality photos than Ryan needs for his app. Which answer best describes the type of compression Ryan should choose and why?
Lossy compression since it typically results in smaller data sizes.
Lossless compression since it ensures perfect reconstruction of the photo.
Lossy compression since it ensures perfect reconstruction of the photo.
Lossless compression since it typically results in smaller data sizes.
Which of the following is true of lossy and lossless compression algorithms?
Lossy compression algorithms are used when perfect reconstruction of the original data is important.
Lossy compression algorithms are typically better than lossless compression algorithms at reducing the number of bits needed to represent a piece of data.
Lossless compression algorithms are only used to compress text data.
Lossless compression algorithms only allow for an approximate reconstruction of the original data.
Which of the following is true of how computers represent numbers?
With a fixed number of bits some numbers are too large to represent in a computer which will lead to overflow errors.
Using a fixed but large number of bits can eliminate the possibility of round off error when representing numbers in binary
Using a fixed but large number of bits, for example 128, eliminates the possibility of overflow errors.
With a large but fixed number of bits it is possible to eliminate either round-off errors or overflow errors, but not both.
Which of the following best describes how computing devices represent information?
A computer will either represent information as bits or bytes but not both
A computer represents data as a byte which is either a 0 or a 1
A computer represents data as bits which is either a 0 or a 1
A computer represents information as bits which contain 8 bytes.
How many bits are there in a byte?
4 bits
8 bits
16 bits
1024 bits
Which statement best describes the nature of analog signals?
Signals that are represented by a finite number of distinct values at any given time
Signals that can be directly interpreted by computers without conversion
Signals that vary in a continuous manner and can represent physical measurements
Signals that are used in digital communication systems exclusively
What is the technique called that involves reducing the size of data files without losing any actual information?
Truncation Error
Lossy Compression
Lossless Compression
Underflow Error
Which term refers to creations of the mind for which exclusive rights are recognized?
Patent
Intellectual Property
Trademark
Literary Work
What is 10 in binary?
1010
0111
0100
What is 37 in binary?
0010 1000
0010 0101
0100 0001
In a four bit system, what is the smallest number than can cause an overflow error?
16
15
14
13
What is 0110 0111 in decimal?
325
103
124
What is 1001 in decimal?
5
7
9
What is the largest number that can be represented by 8 bits?
336
255
128
32
You are trying to send low quality pictures to your friends. Your phone takes much higher quality pictures than your friend can receive. Which type of compression should you use and why?
Lossy compression since it typically results in smaller file sizes
Lossless compression since it typically results in smaller file sizes
Lossy compression because it makes sure they can recreate the picture perfectly
Lossless compression because it makes sure they can recreate the picture perfectly
Someone takes a picture with their camera and they post it online. You find the picture online and add it to your website with an attached Creative Commons license. Who owns the photo?
You own the photo because only holders of the CC license can own online works.
The person who took the photo because it was granted a CC license by another person online
The person who took the photo because he was the original creator and did not have to license the work.
Both people own the photo because creating a copy makes it your intellectual property
When you think about intellectual property…
You do not need to cite work created by someone else if both the original work and your use of it are digitized
Information created on a computer is not owned by anyone else since only analog information is protected under copyright law
Creative Commons has severely prevented broad and open access to digital information
Creative Commons enables content creators to freely distribute their otherwise copyrighted work
You are working on a project as part of your humanities class using materials you found online.
Which could get you in trouble?
Using images posted online by another student without permission or citation
Failing to publish your work under a Creative Commons license
Using open access research that you don’t get a license for
Modifying a piece of open source software
Which statement is true?
Lossy compression are used when perfect reconstruction of original data is important
Lossy compression is better than lossless at reducing the number of bits needed to represent data.
Lossless compression is only used to compress text
Lossless compression only allows for an approximate reconstruction of original data
How many total numbers can be represented with a byte binary (base-2) system?
255
128
16
255
256
Which is NOT true of how computers represent complex information?
Depending on the context, the same sequence of bits might represent different types of information
Abstraction helps represent complex information by showing of how complex it is to the user that might otherwise be hidden
Computing devices use patterns of bits to represent complex information
Common abstractions that are represented by computing devices include numbers, characters, and color
Match the following binary numbers to the colors they represent.
111 000 000
Red
000 000 000
Black
111 111 111
White
000 111 000
Green
000 000 111
Blue
Match the following Creative Commons license options to their meaning.
No Derivatives
Non Commercial
Attribution
Share Alike
If you wanted to send a message with eight possible answers, what is the smallest number of bits you could use to do it?
1 bit
2 bits
3 bits
4 bits
8 bits
When responding to a question with 4 choices, the most efficient method will require _____ number of bits.
1 bit
2 bits
3 bits
4 bits
5 bits
If you had two shapes, like a circle and a square, how many 3 place patterns could you make?
4
6
8
12
What is the 4-bit binary number for decimal 13?
1110
1111
1101
1011
What is the minimum number of bits you would need to encode all the cards in a standard deck of 52?
2 bits
3 bits
5 bits
6 bits
True or false: You cannot count as high using binary numbers as you can with decimal numbers.
True
False
Which is the best definition for "protocol?"
A set of rules governing the exchange or transmission of data between devices.
Transmission capacity measured by bit rate.
A single unit of information in a computer, typically represented as 1 or 0.
Time it takes for a bit to travel from its sender to its receiver.
The number of bits that are conveyed or processed per unit of time, for example, bits/second.
Which is the best definition for "bit?"
A set of rules governing the exchange or transmission of data between devices.
Transmission capacity measured by bit rate.
A single unit of information in a computer, typically represented as 1 or 0.
Time it takes for a bit to travel from its sender to its receiver.
The number of bits that are conveyed or processed per unit of time, for example, bits/second.
Which is the best definition for "latency?"
A set of rules governing the exchange or transmission of data between devices.
Transmission capacity measured by bit rate.
A single unit of information in a computer, typically represented as 1 or 0.
Time it takes for a bit to travel from its sender to its receiver.
The number of bits that are conveyed or processed per unit of time, for example, bits/second.
Which is the best definition for "bit rate?"
A set of rules governing the exchange or transmission of data between devices.
Transmission capacity measured by bit rate.
A single unit of information in a computer, typically represented as 1 or 0.
Time it takes for a bit to travel from its sender to its receiver.
The number of bits that are conveyed or processed per unit of time, for example, bits/second.
0001
1
10
1
11
1001
11
128
9
7
1000 0010
128
130
22
188
0101
4
5
6
7
0100 0100
72
58
89
68
1011 1110
190
192
179
290
21
1010 0011
0001 0101
0001 1010
0010 0001
