Unit-1 Computational Thinking

Quiz
•
Computers
•
9th - 12th Grade
•
Hard
Suprabha Malhar-Jain
Used 75+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a valid reason for giving variables meaningful names in a program?
A programmer will find it easier to read and understand the code since they will know what the variables represent.
The compiler will be able to parse the code faster since it will know the purpose of each variable.
The memory required to store the variables will be reduced as the possible values which can be stored by each variable can be determined from their names.
The code will run with fewer errors since the CPU can interpret what the variable represents from its name.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following describes good practice when naming variables in code?
- Use names which contain as few different characters to aid the compiler and shorten compile times
- Use names which show in what order the variables were introduced to make it easier to find the value of a variable
- Use names which describe what each variable represents to make code easier to understand
- Use concise names to avoid typos and keep code tidier
All of the above
2, 3 & 4 only
3 & 4 only
2 & 4 only
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Q. Which of the 4 computational thinking skills are required to complete the following task?: You and your family are planning a road trip through all of the capitals in the Europe and you have the job of figuring out the shortest route possible to save on the cost of fuel.
Algorithm Design
Decomposition
Pattern Recognition
Abstraction
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Q. What is the minimum number of bits you would need to encode the 26 letters of the alphabet plus a space -- for a total of 27 characters?
5 bits
10 bits
9 bits
27 bits
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8 bits is enough to represent 256 different numbers. How many total bits do you need to represent 512 (twice as many) numbers?
9 bits
17 bits
10 bits
16 bits
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
move 10 steps then stop
broadcast RUN when distance is close
make sprite run when distace is close
glitch out
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The following incomplete algorithm appears in a Scratch script for a sprite, and is intended to draw a rectangle.
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