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WorksheetsAP CSP 200PT Quizizz 10-4 - FRIDAY
Total questions: 121
Worksheet time: 15hrs 27mins
Which of the following best describes the protocols used on the Internet?
The protocols of the Internet are designed by government agencies to ensure they remain free to use
The protocols of the Internet are secret to maintain the privacy and security of people using them
Each device connected to the Internet will use a protocol designed by the company that manufactured it
The protocols of the Internet are open and used by all devices connected to the network
For the next four questions, match the term with the definition: Computing Device
a machine that can run a program
a group of computers working together for a common purpose
a group of connected computers that can send or receive data
a sequence of direct connections
For the next four questions, match the term with the definition: Path
a machine that can run a program
a group of computers working together for a common purpose
a group of connected computers that can send or receive data
a sequence of direct connections
For the next four questions, match the term with the definition: Computing Network
a machine that can run a program
a group of computers working together for a common purpose
a group of connected computers that can send or receive data
a sequence of direct connections
For the next four questions, match the term with the definition: Computing System
a machine that can run a program
a group of computers working together for a common purpose
a group of connected computers that can send or receive data
a sequence of direct connections
Jesse purchases a new smartphone and is immediately able to use it to send a photo over the Internet to a friend who lives in a different country. Which of the following is NOT necessary to make this possible?
Both devices are using the same shared and open protocols
A single direct connection is established between any two devices connected to the Internet
The data of the image is routed through a sequence of directly connected devices before arriving at its destination.
Both devices are directly connected to at least one part of the Internet
This diagram shows a number of computing devices connected to the Internet with each line representing a direct connection. What is the MINIMUM number of paths that would need to be broken to prevent Computing Device A from connecting with Computing Device E?
1
2
3
4
This diagram shows a number of computing devices connected to the Internet with each line representing a direct connection. Device A is attempting to send data over the Internet to Device E. Which of the following is true of how the data will travel through the network?
The data will always travel through Device B as it is the shortest path
The data will never be sent to Device G since there are other shorter paths available
It is possible that the data travels through any of the devices in the network before arriving at device E
If the data travels through Device D then it will not travel through Device B
Which of the following is true of how the Internet has responded to the increasing number of devices now using the network?
The Internet protocols are changed every year to adapt to the new devices that have been connected to the network
While the number of devices connected to the Internet has grown, the network itself has not grown
The protocols of the Internet were designed to scale as new devices are added
The protocols of the Internet are no longer necessary thanks to the large number of devices now connected to the network
Which of the following is true of how packets are sent through the Internet?
Packet metadata is only included on important packets to indicate they should get access to faster paths through the network
Packet metadata is used to route and reassemble information travelling through the Internet
Information sent through the internet is only encapsulated in packets if the message is too large to be sent as a datastream
Information sent through the internet is split into two packets, one which contains the message and another which contains the metadata
Emilee is watching an online video. The video is being sent to her laptop by a server over the Internet which splits the video into packets and sends them in the order they appear in the video. Which of the following is true about how the packets will arrive at her computer?
The packets will always be received in the order that they were sent
Either every packet will reach her computer or none of them will.
Packets that arrive out of order will be sent back to the server.
The packets may arrive out of order
Which of the following best describes the purpose of an IP address?
IP addresses provide a unique number for identifying devices that send and receive information on the Internet
IP addresses assist in the reconstruction of a message that has been divided into many packets
IP addresses indicate the location where an internet-connected computing device was manufactured
IP addresses indicate how many times an individual packet has been requested by a router
Which of the following Internet protocols is MOST important in reassembling packets and requesting missing packets to form complete messages?
Transmission Control Protocol (TCP)
Internet Protocol (IP)
User Datagram Protocol (UDP)
HyperText Transfer Protocol (HTTP)
Which of the following Internet protocols is used to request and send pages and files on the World Wide Web?
Transmission Control Protocol (TCP)
Internet Protocol (IP)
User Datagram Protocol (UDP)
HyperText Transfer Protocol (HTTP)
Two devices are connected to the Internet and communicating with one another. A squirrel chews through one of the wires in the network that is currently being used by the devices to communicate. The network immediately begins using a different path through the network and communication continues as normal. This situation best exemplifies which principle?
fault-tolerance
scalability
protocol
pathing
An Internet Service Provider (ISP) is a company that builds the routers and wired connections that allow individuals to access the Internet. An ISP is considering adding additional redundant connections to its network. Which of the following best describes why the company would choose to do so?
It costs less to design a network that is redundant
The protocols of the Internet only work on networks that are redundant
Redundant networks are more reliable
Adding additional connections reduces the fault-tolerance of the network
Which of the following situations is most likely to cause issues arising from the digital divide?
A state makes voter registration forms available only by visiting a government website
Two internet-connected devices located in different countries and thousands of miles apart attempt to communicate with one another
Packets sent from one router to another begin arriving in a different order than they were sent
A smartphone attempts to communicate over the Internet with another type of device, like a tablet or laptop
Which of the following is MOST likely to be an outcome of the digital divide?
Certain companies will be unable to certify their technology as digitally secure.
People from some racial or ethnic groups have unequal access to computing technology.
People will have equal access and influence both globally and locally.
Political groups in some countries are unable to agree on regulations of digital technology.
Which of the following statements are true about routers and routing on the Internet? Choose two answers.
Protocols ensure that a single path between two computers is established before sending packets over it.
Routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic.
A packet traveling between two computers on the Internet may be rerouted many times along the way or even lost or "dropped".
Routers act independently and route packets as they see fit.
The various protocols in use on the internet are said to operate in layers in which the protocol(s) at each layer solve one problem related to networked communication, and higher layers are built on top of, and rely on, the lower layers to do their jobs.
From the list provided choose the two (2) answers that correctly describe which internet protocol relies on the other. For example: if protocol A relies on protocol B, it means that A is a higher level protocol than B, and thus protocol B must exist and work properly in order for protocol A to do its job.
Select two answers.
TCP/IP relies on HTTP
HTTP relies on TCP/IP
DNS relies on TCP/IP
TCP/IP relies on DNS
A school starts tracking which websites each computer in the school is visiting by monitoring the packets leaving the school. A sample of the information they have collected appears above. Which of the following is MOST likely to be answerable using all the data collected by this monitoring?
Which students are visiting social media sites from school
Which classes are assigning the most homework using the computers
Which programs students are running on the lab computers
Which websites are most frequently visited before and after school hours from a school computer
Which of the following BEST describes how protocols on the Internet (e.g. IP, TCP, HTTP) make use of abstraction to accomplish their respective purposes?
High level protocols take into account specific implementation details of lower level protocols to ensure they are compatible.
Low level protocols can provide functionality to high level protocols without revealing the details of how this is accomplished.
Low level protocols are written in binary while high level protocols are written in hexadecimal.
High level protocols can take on the role of a low level protocol in the event of failure in the system.
Which of the following is NOT true about TCP/IP packets?
Packets are numbered so if they arrive out of order the message can be reassembled.
TCP guarantees that no packets are ever dropped
Packets can be routed on different paths from sender to receiver.
Messages are broken into packets to improve reliability of the internet
The Internet Engineering Task Force (IETF) defines the protocols and standards for how the Internet works. The members of the IETF are:
An International coalition of government agencies who oversee the Internet in their countries.
A collection of the leaders of the Tier 1 Internet service providers.
A loosely organized collection of citizens and engineers.
Political leaders and heads of state.
There are no members. IETF is an "organization" in name only.
How does a computer resolve (match) a domain name into an IP address?
It asks a DNS server for the corresponding IP address
It scans addresses until it finds the one it's looking for
It uses a Border Gateway Protocol to get the address from a nearby computer.
It creates an IP address for the domain, and shares it with the closest DNS.
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
A _____ HTTP request is used when the user enters information (ex. user name/password) into the webpage.
Get
Post
Login
Send
HTTP
Protocol used to check if all packets of data have been received
Protocol for relaying packets across an interconnected network (Internet)
Protocol used by web browsers to communicate with the web server and fetch the webpages that you see
A cryptographic protocol used to securely transmit data over an unsecured network
How many bits are in an IPV4 address?
32
64
128
256
If the post office delivered mail exactly like routers deliver messages on the internet, which 2 of the following statements would be true?
One mailman would be responsible for delivering a letter from sender to receiver.
The mailman would sometimes take a different path to deliver each letter to your home.
Letters would be written on the outside of envelopes for all to read instead of letters put inside envelopes.
Your mail could not be delivered if a road your mailman was planning to take were under construction.
During the activity where you were on the simulator learning about packets and protocols for making a reliable internet, what were some obstacles you needed to overcome? Select all answers that apply.
Packets have a maximum size. If the information being sent was more than the required size, then the data got cut off.
Some percentage of packets were dropped no matter what, which meant that it could never be assumed that the receiver got some or all of the message.
Because bits are sent via physical infrastructure such as copper wires or fiber optic cable, physical disruption (earthquake, wire being cut, etc.) can interfere with transmission.
If a router doesn't have enough memory to hold all the packets it is processing, it can drop packets.
Because the Internet has a maximum packet size, devices must respect in order to have the packet be properly routed.
Pick Two: Pick the two statements about packets and routing on the Internet which are true.
Packets travelling across the Internet take a standardized amount of time and so can be counted on to arrive in the order they were sent.
TCP ensures messages can be reliably transmitted across the Internet.
TCP depends on the infrastructure of the Internet to be reliable enough to ensure no packets are lost in transmission.
TCP must account for the fact that packets may not arrive at a destination computer in the intended order.
A single central register of IP addresses and names (a DNS style system) is an efficient means of translating human readable names to IP addresses. Which of the following is NOT solved by DNS?
It is inefficient to have everyone on the Internet maintain their own list of IP addresses.
There are too few IP addresses to meet the current demand.
When someone new joins the Internet they must inform everyone else of the new IP address.
When an IP address changes, it is impossible to locate a computer until the owner announces the change.
True or False: Computers need to periodically check the DNS (Domain Name System) for websites you have already visited because they are not static and can change.
True
False
True or False: When we type in a web page address (URL) and click [enter], the browser contacts the DNS server to look up the IP address. It does this every time we browse to a page, so we don't need to know /memorize the IP addresses for our favorite web sites.
True
False
What feature of DNS and IP allow the internet to scale?
Redundancy
Hierarchy
Multiple servers
Government control
HTTP is considered to be a high level protocol because...
HTTP requests are given higher priority for fast delivery when being routed on the Internet.
HTTP requests are encoded using higher frequency radio waves.
HTTP messages can be either requests or responses.
HTTP requests make use of abstractions provided by lower level protocols.
Identify the two true statements about HTTP.
An HTTP request is sent from a client to request access to data stored on a server.
HTTP requests and responses have identical formats.
Displaying a web page will often require multiple HTTP requests in order to acquire all the necessary data.
An HTTP response code is only used when a server could not fulfill a request.
When computers communicate with each other using servers, they talk back and forth using HTTP.
True or False: Computers use a GET request to request/ask for a specified web page or other data /information, where as a POST submits some data for the server to accept or process.
True
False
What's the relationship between a byte and a bit?
8 bytes in a bit
4 bits in a byte
10 bytes is a bit
8 bits in a byte
Computers store information in bits, or binary digits. Which of the following could be represented in bits?
Numbers
Text
Images
Sounds
All of the above
Creating simplified representations of something more complex is called:
Obstruction
Abstraction
Substitution
Flippy-Do
What logo is this?
X box
Nintendo
Wii
Playstation
What is 1001 in decimal form?
9
10
12
13
What is 15 in binary?
1100
1101
1110
1111
How many bits do you need to make 21 in binary?
3
4
5
6
Which is true about 3 bits?
The highest number you can reach is 8, giving you 9 numbers (0-8)
The highest number you can reach is 7, giving you 8 numbers (0-7)
The highest number you can reach is 8, giving you 8 numbers (0-7)
The highest number you can reach is 7, giving you 7 numbers (0-7)
What show is this character from?
Spongebob
Rugrats
Fairly Oddparents
Danny Phantom
Which is true about analog vs digital?
Analog is data with values that change continuously, or smoothly, over time while digital is has a finite set of possible values
Analog has a finite set of possible data values while digital has data values that change continuously, or smoothly, over time
Which of the following is true about creating a digital image? Select all that apply.
The more sampling you do, the closer the image will look to the analog version
The less sampling you do, the closer the image will look to the analog version
The more pixels you have, the smaller the file size of the image
The more pixels you have, the larger the file size of the image
Compression is a process used to reduce the number of bits necessary to represent something.
True
False
What is the difference between lossy and lossless compression? Select all that apply.
With lossless compression, you can reverse the process and recreate the original exactly
With lossy compression, no information is lost
With lossless compression, the size of the file sent is NOT going to be smaller than the original
Lossy compression is ok if you are just trying to send a quick silly picture to someone but if specific details were important, you should use lossless compression
Lossless compression would send a higher quality image than one sent with lossy compression
What is true about copyright laws?
If you use someone's stuff and don't cite it, you are violating copyright laws
If someone has a Creative Commons license, then you are able to use their stuff freely (as long as it follows what is written in the license)
Open source means you are free to use it without worrying about copyright laws
All of the above
Who helps Nemo's dad look for his son?
Bubbles
Dory
Gill
Bruce
The single unit of information in a computer, typically represented as a 0 or 1.
Bit
Binary
Storage
Protocol
Error from attempting to represent a number that is too large.
Round-off Error
Data Compression
Open Source
Overflow Error
Error from attempting to represent a number that is too precise. The value is rounded.
Bit
Lossy Compression
Sampling
Round-off Error
In an ASCII file, each alphabetic, numeric, or special character is represented with an 8-bit binary number (a string of eight 0s or 1s).
True
False
How many more numbers can be represented with 5 bits as opposed to 4?
2 times as many
4 times as many
5 times as many
10 times as many
The smallest unit of information is ?
a byte (Pronounced: bite)
a bit
a nibble
a block
Fortran
The smallest visual element on a video monitor is called what?
Character
Pixel
Byte
Kwerk
DEFINE: Binary Code
Any type of computer network that is not connected by cables of any kind.
Read Only Memory- Permanent instructions that cannot be changed. It makes the BIOS function. Checks your OS.
Groupings of 1's and 0's that makes information that a computer can understand.
How many bits are there in a byte?
4
8
16
32
In binary code, what does the sequence 1010 represent in decimal notation?
8
9
10
11
Which of the following is a true statement about data compression?
Lossless compression reduces data size without losing any information.
Lossy compression can always be reversed to retrieve the original data.
Data compression does not affect the speed of data transmission.
Compressed data is always encrypted.
Which of the following best describes the concept of abstraction in computer science?
Writing detailed documentation for code
Removing unnecessary details to focus on the high-level overview
The process of debugging and fixing errors in a program
The physical components that make up a computer system
What does the binary sequence 1101 represent in decimal notation?
11
12
13
14
What does the binary sequence 1110 represent in decimal notation?
12
13
14
15
What does the binary sequence 1001 represent in decimal notation?
8
9
10
11
Convert the binary (base-2) number 1001 to decimal (base-10).
9
10
16
17
Convert the decimal (base-10) number 20 to binary (base-2).
10010
00101
11000
10100
Which of the following binary (base-2) numbers is LARGEST?
11000000
01111111
00000001
10111111
How many total numbers can be represented with an 8-bit binary (base-2) system?
127
128
255
256
Which of the following is true of intellectual property?
Information created on a computer is not owned by anyone since only analog information is protected under copyright law.
You do not need to cite work created by someone else if both the original work and your use of it are in digital form.
Creative Commons enables content creators to freely distribute their otherwise copyrighted work.
Creative Commons has severely hindered broad and open access to digital information
What's the relationship between a byte and a bit?
8 bytes in a bit
4 bits in a byte
10 bytes is a bit
8 bits in a byte
Creating simplified representations of something more complex is called:
Obstruction
Abstraction
Substitution
Flippy-Do
How many bits do you need to make 21 in binary?
3
4
5
6
Which is true about 3 bits?
The highest number you can reach is 8, giving you 9 numbers (0-8)
The highest number you can reach is 7, giving you 8 numbers (0-7)
The highest number you can reach is 8, giving you 8 numbers (0-7)
The highest number you can reach is 7, giving you 7 numbers (0-7)
Which is true about analog vs digital?
Analog is data with values that change continuously, or smoothly, over time while digital is has a finite set of possible values
Analog has a finite set of possible data values while digital has data values that change continuously, or smoothly, over time
Which of the following is true about creating a digital image? Select all that apply.
The more sampling you do, the closer the image will look to the analog version
The less sampling you do, the closer the image will look to the analog version
The more pixels you have, the smaller the file size of the image
The more pixels you have, the larger the file size of the image
Compression is a process used to reduce the number of bits necessary to represent something.
True
False
What is the difference between lossy and lossless compression? Select all that apply.
With lossless compression, you can reverse the process and recreate the original exactly
With lossy compression, no information is lost
With lossless compression, the size of the file sent is NOT going to be smaller than the original
Lossy compression is ok if you are just trying to send a quick silly picture to someone but if specific details were important, you should use lossless compression
Lossless compression would send a higher quality image than one sent with lossy compression
What is true about copyright laws?
If you use someone's stuff and don't cite it, you are violating copyright laws
If someone has a Creative Commons license, then you are able to use their stuff freely (as long as it follows what is written in the license)
Open source means you are free to use it without worrying about copyright laws
All of the above
Error from attempting to represent a number that is too precise. The value is rounded.
Bit
Lossy Compression
Sampling
Round-off Error
Error from attempting to represent a number that is too large.
Round-off Error
Data Compression
Open Source
Overflow Error
In an ASCII file, each alphabetic, numeric, or special character is represented with an 8-bit binary number (a string of eight 0s or 1s).
True
False
How many more numbers can be represented with 5 bits as opposed to 4?
2 times as many
4 times as many
5 times as many
10 times as many
