AP Computer Science ACTUAL Questions
and CORRECT Answers
Bit - CORRECT ANSWER✔✔- Binary Digit, the single unit of information in a computer.
Bit rate - CORRECT ANSWER✔✔- the number of bits that are processed in a unit of time
Protocol - CORRECT ANSWER✔✔- A set of rules used for transmitting data.
Router - CORRECT ANSWER✔✔- a computer designed to receive and redirect packets of
information based upon the addressing information (IP address)
Packets - CORRECT ANSWER✔✔- Small chunks of information that have been chunks of
information formed from large chunks of information
TCP (Transmission Control Protocol) - CORRECT ANSWER✔✔- Provides reliable, ordered
and error checked delivery stream of packets on the Internet.
DNS (Domain Name Service) - CORRECT ANSWER✔✔- the service that translates URLs
to IP addresses
HTTP (Hypertext Transfer Protocol) - CORRECT ANSWER✔✔- The protocol used for
sending and receiving web pages
-ASCII text- based protocol
-At the same level as DNS
Compression - CORRECT ANSWER✔✔- Represents the same data using fewer bits
Pixel - CORRECT ANSWER✔✔- the fundamental unit of a digital image
a) short for picture element
b) typically a tiny square or dot which contains a single point of color or larger image
, Metadata - CORRECT ANSWER✔✔- data that describes other data
a) Examples: size of number, number of colors, or resolution (how clear the image is)
Internet Packet - CORRECT ANSWER✔✔- The packet contains the data that needs to be
sent, but also other data like the to and from address, and packet number.
Lossless Compression - CORRECT ANSWER✔✔- a data compression algorithm that allows
the original data to be perfectly reconstructed from the compressed data.
Lossy Compression - CORRECT ANSWER✔✔- (or irreversible compression) a data
compression method that uses inexact approximations, discarding some data to represent the
content. Most commonly seen in image formats like .jpg.
Top Down Design Approach - CORRECT ANSWER✔✔- A design process that begins by
specifying complex pieces and then dividing them into smaller pieces.
Abstraction - CORRECT ANSWER✔✔- Pulling out specific differences to make one
solution work for multiple problems.
-a mental tool that allows us to ignore low-level details when they are unnecessary.
-this ability to ignore small details is what allows us to develop complex encodings and
protocols.
Assumption - CORRECT ANSWER✔✔- The information collected that gave us a false
representation of data.
Digital Divide - CORRECT ANSWER✔✔- the gulf between those who have ready access to
computers and the Internet, and those who do not.
Programming Language - CORRECT ANSWER✔✔- Instructional "code" where each has a
precise, unambiguous meaning.
and CORRECT Answers
Bit - CORRECT ANSWER✔✔- Binary Digit, the single unit of information in a computer.
Bit rate - CORRECT ANSWER✔✔- the number of bits that are processed in a unit of time
Protocol - CORRECT ANSWER✔✔- A set of rules used for transmitting data.
Router - CORRECT ANSWER✔✔- a computer designed to receive and redirect packets of
information based upon the addressing information (IP address)
Packets - CORRECT ANSWER✔✔- Small chunks of information that have been chunks of
information formed from large chunks of information
TCP (Transmission Control Protocol) - CORRECT ANSWER✔✔- Provides reliable, ordered
and error checked delivery stream of packets on the Internet.
DNS (Domain Name Service) - CORRECT ANSWER✔✔- the service that translates URLs
to IP addresses
HTTP (Hypertext Transfer Protocol) - CORRECT ANSWER✔✔- The protocol used for
sending and receiving web pages
-ASCII text- based protocol
-At the same level as DNS
Compression - CORRECT ANSWER✔✔- Represents the same data using fewer bits
Pixel - CORRECT ANSWER✔✔- the fundamental unit of a digital image
a) short for picture element
b) typically a tiny square or dot which contains a single point of color or larger image
, Metadata - CORRECT ANSWER✔✔- data that describes other data
a) Examples: size of number, number of colors, or resolution (how clear the image is)
Internet Packet - CORRECT ANSWER✔✔- The packet contains the data that needs to be
sent, but also other data like the to and from address, and packet number.
Lossless Compression - CORRECT ANSWER✔✔- a data compression algorithm that allows
the original data to be perfectly reconstructed from the compressed data.
Lossy Compression - CORRECT ANSWER✔✔- (or irreversible compression) a data
compression method that uses inexact approximations, discarding some data to represent the
content. Most commonly seen in image formats like .jpg.
Top Down Design Approach - CORRECT ANSWER✔✔- A design process that begins by
specifying complex pieces and then dividing them into smaller pieces.
Abstraction - CORRECT ANSWER✔✔- Pulling out specific differences to make one
solution work for multiple problems.
-a mental tool that allows us to ignore low-level details when they are unnecessary.
-this ability to ignore small details is what allows us to develop complex encodings and
protocols.
Assumption - CORRECT ANSWER✔✔- The information collected that gave us a false
representation of data.
Digital Divide - CORRECT ANSWER✔✔- the gulf between those who have ready access to
computers and the Internet, and those who do not.
Programming Language - CORRECT ANSWER✔✔- Instructional "code" where each has a
precise, unambiguous meaning.
