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WorksheetsAPCSP Data + a little Internet
Total questions: 20
Worksheet time: 26mins
True/False: When using binary, 0 represents off and
1 represents on
true
false
What is the 4-bit binary number for the decimal number 10?
0010
1010
0110
0101
What is the minimum number of bits you would need to encode the 26 letters in the English alphabet?
2 bits
3 bits
4 bits
5 bits
6 bits
How many unique combinations can be made using 5 bits?
15
16
31
32
When 1 additional bit is added to a binary sequence, it...
can store one more piece of data
can store 2 more pieces of data
can store twice as much data
can store 4x as much data
A certain programming language uses 4-bit sequences to represent decimal numbers. Using this programming language, a programmer attempts to add the decimal values 12 and 15 and print it on screen.
Which of the following best describes the result of this operation?
The number 27 will be printed on screen
An overflow error will occur because 4 bits is not large enough to represent either of the values 14 or 15
An overflow error will occur because 4 bits is not large enough to represent 27
A round-off error will occur because the decimal values 14 and 15 are only approximations
Choose all of which that can be represented using binary
decimal numbers
keyboard characters
B&W pictures
color pictures
sounds
Which of the following is true about sampling analog data?
Sampling more often creates a more pixelated digital representation
Digital data is sampled often to create an analog representation
An analog audio sound can be turned into HD digital audio by sampling a lot
Sampling more often is quicker than sampling less often
When using a 3-bit binary sequence to represent an RGB color pixel, what color would 000 be?
black
white
red
green
blue
When using a 6-bit binary sequence to represent an RGB color pixel, what color would 001100 be?
dark green
brown
light green
grey
What is the number 117 in binary?
1110110
1110101
1010111
1110111
The binary number 10010110 is what number in base-10?
160
150
140
278
What feature of the Internet allows information to know WHERE to deliver data?
packets
Keyboards
UDP
IP addresses
True or False: The Internet is core based/centrally located, which means all data travelling across the Internet passes through one main system
True
False
True or False: The word Internet is written using an upper-case "I"
True
False
True or False: IP addresses are included on every message sent over the internet
True
False
_____________ is the maximum amount of data that can be sent in a fixed amount of time (measured in bits per second)
RPM
bandwidth
redundancy
IPv4
True of False: The internet and the world wide web are the same thing
True
False
In a diagram of the Internet, there are nodes and lines. Which of the following is FALSE about this diagram?
The lines represent paths like copper wire, fiber optic wires or radio waves
The nodes represent routers
The whole diagram is distributed and there is no one central hub
Data will pass through all of the nodes while traveling across the Internet
When creating the Internet, there is _________, which makes the Internet __________
fault tolerance... redundant
redundancy... fault tolerant
IPv4, ASCII
packets, fast
