APCSP Practice Test (3) questions well
answered to pass
A binary question is defined as: - correct answer ✔✔D: a question which can be answered in only one of
two possible ways
A binary message consisting of four bits was sent to you by a friend. The message was supposed to be
ABAB, unfortunately, your friend set the bit on the wire once every two seconds, but you read the wire
once every second. Assuming that the first bit was sent and read at the same time, what message did
you receive instead? - correct answer ✔✔B: AABB
When sending a response to a question with four possible answers, the most efficient method will
require no more than what number of bits? - correct answer ✔✔D: 2 bits
If you just had tow shapes (say, a circle and a square), how many 3-place patterns could you make? -
correct answer ✔✔C: 8
You have a coordinate grid that is 96 X 96. Assuming that you encode the X and y coordinate separate
numbers, what is the minimum number of bits that you will need to encode a coordinate in that space? -
correct answer ✔✔B: 14
What is the m inimitable number of bits you need to encode the 26 letters of the alphabet plus a space?
- correct answer ✔✔D. 5 bits
The standard QWERTY keyboard has 47 keys that can place characters on the screen. Each of these keys
can also display a second character by holding the "shift" key at the same time. How many bits would
you need to encode everything that could be typed on this keyboard? - correct answer ✔✔D. 7 bits
ASCII has an encoding for every character of the alphabet as well as encoding for numbers -- that is,
encoding for the symbols of the digits 0-9. So here is a trick question: how many bits are required to
store the text of the number "150" in ASCII? - correct answer ✔✔D. 24
, What is the best explanation for why data is represented in computers as binary? - correct answer ✔✔D.
IT's easier, cheaper, and more reliable to build machines and devices that only to distinguish between
binary states
What is the 4-bit binary number for the decimal number 10 - correct answer ✔✔B: 1010
Number bases, including binary, decimal, and hexadecimal, are used to view and represent digital data.
Which of the following is not true about representing digital data? - correct answer ✔✔D: there is a limit
to the number of things that can be represented in binary data at which point switching to hexadecimal
representation is necessary.
8 bits is enough to to represent 256 different numbers. How many bits do you need to represent 512
(twice as many) numbers? - correct answer ✔✔A. 9 bits
The internet engineering task force (IETF) defines the protocols and standards for how the Internet
works. The members of the IETF are: - correct answer ✔✔C. A loosely organized collection of citizens
and engineers who communicate mostly by email.
What is an RFC? - correct answer ✔✔B. Request for comments
Choose the two best answers to complete the sentence: If I understand how the Internet works, then I
will be able to : - correct answer ✔✔A: make informed choices to support or oppose decisions my
government makes about access to the Internet
C: make informed choices about my pricey on the Internet
To improve communication in playing battleship on the Internet simulator, you group invented a(n): -
correct answer ✔✔C: protocol
Which of the following information is not necessary in your protocol to play battleship? - correct answer
✔✔D: Time of Day
How many users would a fixed length IP address system using 6 bits support? - correct answer ✔✔D: 64
users
answered to pass
A binary question is defined as: - correct answer ✔✔D: a question which can be answered in only one of
two possible ways
A binary message consisting of four bits was sent to you by a friend. The message was supposed to be
ABAB, unfortunately, your friend set the bit on the wire once every two seconds, but you read the wire
once every second. Assuming that the first bit was sent and read at the same time, what message did
you receive instead? - correct answer ✔✔B: AABB
When sending a response to a question with four possible answers, the most efficient method will
require no more than what number of bits? - correct answer ✔✔D: 2 bits
If you just had tow shapes (say, a circle and a square), how many 3-place patterns could you make? -
correct answer ✔✔C: 8
You have a coordinate grid that is 96 X 96. Assuming that you encode the X and y coordinate separate
numbers, what is the minimum number of bits that you will need to encode a coordinate in that space? -
correct answer ✔✔B: 14
What is the m inimitable number of bits you need to encode the 26 letters of the alphabet plus a space?
- correct answer ✔✔D. 5 bits
The standard QWERTY keyboard has 47 keys that can place characters on the screen. Each of these keys
can also display a second character by holding the "shift" key at the same time. How many bits would
you need to encode everything that could be typed on this keyboard? - correct answer ✔✔D. 7 bits
ASCII has an encoding for every character of the alphabet as well as encoding for numbers -- that is,
encoding for the symbols of the digits 0-9. So here is a trick question: how many bits are required to
store the text of the number "150" in ASCII? - correct answer ✔✔D. 24
, What is the best explanation for why data is represented in computers as binary? - correct answer ✔✔D.
IT's easier, cheaper, and more reliable to build machines and devices that only to distinguish between
binary states
What is the 4-bit binary number for the decimal number 10 - correct answer ✔✔B: 1010
Number bases, including binary, decimal, and hexadecimal, are used to view and represent digital data.
Which of the following is not true about representing digital data? - correct answer ✔✔D: there is a limit
to the number of things that can be represented in binary data at which point switching to hexadecimal
representation is necessary.
8 bits is enough to to represent 256 different numbers. How many bits do you need to represent 512
(twice as many) numbers? - correct answer ✔✔A. 9 bits
The internet engineering task force (IETF) defines the protocols and standards for how the Internet
works. The members of the IETF are: - correct answer ✔✔C. A loosely organized collection of citizens
and engineers who communicate mostly by email.
What is an RFC? - correct answer ✔✔B. Request for comments
Choose the two best answers to complete the sentence: If I understand how the Internet works, then I
will be able to : - correct answer ✔✔A: make informed choices to support or oppose decisions my
government makes about access to the Internet
C: make informed choices about my pricey on the Internet
To improve communication in playing battleship on the Internet simulator, you group invented a(n): -
correct answer ✔✔C: protocol
Which of the following information is not necessary in your protocol to play battleship? - correct answer
✔✔D: Time of Day
How many users would a fixed length IP address system using 6 bits support? - correct answer ✔✔D: 64
users
