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WorksheetsUnit 2 Quiz PIT
Total questions: 25
Worksheet time: 15mins
Marco had a database that showed the first, second, and third favorite ice cream flavors for each person in his school. He used it to decide which flavors to order for the school’s café. What has Marco done?
turned information into data
turned data into information
turned data into binary numbers
turned binary numbers into data
Cynthia finds a spreadsheet on her desk. It has rows and columns of numbers, such as 37, 28, 91, and 12, but Cynthia is not sure what the numbers mean. Which term best describes what Cynthia has?
information
binary numbers
data
programmatics
Ning wants to gather data about humidity for a science project. Which of these is needed to gather data?
binary code
information
an input device
an output device
Which of these statements describes the difference between binary and decimal numbers?
Binary numbers are shorter to write than decimal numbers.
Binary numbers use more unique characters than decimal numbers.
Binary numbers use only the digits 0 and 1; decimal numbers use 0 through 9.
Binary numbers are easier for people to read than decimal numbers.
If the number BDB76B is used to describe a color in a computer program, which number system is being used?
binary
decimal
hexadecimal
Roman numerals
Processor speeds are given in hertz. One hertz refers to what?
one transfer from binary to hexadecimal
one use of an input device
one fetch-decode-execute cycle
one uploaded gigabyte
A computer in an advertisement has a 3.64-GHz processor. What does this mean?
It can download 3.64 gigabits per second.
It can upload 3.64 gigabits per second.
It can convert binary to decimal at the rate of 3.64 trillion numbers per second.
It can execute 3.64 billion instructions per second.
A data type needs to hold letters and numbers. Which type is best?
string
character
integer
Boolean
A computer program will track expenses each month, which will be recorded in dollars and cents. What data type is needed?
float
character
integer
Boolean
A computer program will use the variables True and False to determine whether the user has enough money in their bank account to make a purchase. Which data type is needed?
float
character
integer
Boolean
There is a power outage, and the computer turns off. What will be lost?
the CPU
the contents in RAM
the contents in secondary storage
hard disk
What is one advantage of a magnetic hard drive compared to a solid-state drive?
It won’t be harmed if the computer is dropped.
It is open-source.
It is less expensive.
It spins faster.
Josh has made a movie. He wants to give a copy to a friend who does not have internet access at home but does have a laptop. Which of these is the best way to give his friend the movie?
A school wants to network its computers. Which of these will the school need?
a flash drive
HDMI
a server
a catalog
Rachel has been hired as a technology consultant. Her client is a growing company. As of now, each employee is given their own laptop to use at work, but the company plans on doubling its staff and doesn’t want to buy so many laptops when most people only work part-time. What solution could she recommend to the company?
increasing RAM
creating a network
adopting flash drive
synchronizing browsers
Data stored in an online server can be described as being:
a flash drive.
in RAM.
in ROM.
in the cloud.
Minji was writing a book, but her laptop was stolen, and now, the book is gone. Which of these storage options would have prevented this problem?
a solid-state hard drive
a magnetic hard drive
a file server
data mining
A grocery store has a camera over the door that tracks how many people enter the store. The store uses this data in order to decide how many people need to work at a certain time. This is an example of:
the cloud.
binary conversion.
data mining.
data manipulation.
Which of these are the two possible values of a binary number?
0 and 1
left and right
ASCII and Unicode
program and algorithm
Which list shows the correct order for increasing size?
bit, byte, kilobyte, megabyte, terabyte, exabyte
exabyte, terabyte, megabyte, kilobyte, bit, byte
To store a variable with the content of “110 Maple Street,” which data type would be the most appropriate?
binary
Boolean
float
string
Maria is entering information into a website. She enters her age as 15, and this error message appears: “Boolean value expected.” What mistake did the programmer make?
The program expected “True” or “False.”
The program expected her address.
The program expected her to type “fifteen.”
The program expected only adults to use it.
Which kind of storage has a spinning platter?
magnetic hard disk
solid-state hard disk
cloud
Server
At its most basic level, data is stored as binary numbers.
True
False
String, character, and date are all examples of data types.
True
False
