Showing
5
question(s) for
UK Class 9
—
Subject:
Computing
Computing
Q1.
What is binary search?
Answer:
Binary search is an algorithm for finding an item in a sorted list by repeatedly dividing the search area in half.
Computing
Q2.
Why is binary search generally faster than linear search on a large sorted list?
Answer:
Binary search eliminates approximately half of the remaining search area after each comparison, while linear search may need to check items one by one.
Computing
Q3.
What is a relational database?
Answer:
A relational database stores data in structured tables made up of rows and columns and can connect related information between tables.
Computing
Q4.
What is encryption?
Answer:
Encryption transforms readable data into a coded form so that unauthorised people cannot easily understand it without the appropriate key or method of decryption.
Computing
Q5.
What is computational thinking?
Answer:
Computational thinking is a problem-solving approach involving decomposition, pattern recognition, abstraction and algorithmic thinking.