Govt Exams
An index is a database structure that improves the speed of data retrieval by creating a quick lookup mechanism
A Stack uses LIFO principle where the last element added is the first one to be removed
The '//' operator performs floor division, which returns 3 (the integer part of 10/3)
'final' keyword makes a variable immutable - once assigned, it cannot be changed
SQL (Structured Query Language) is used for managing and querying relational databases
The passage states that technology has revolutionized education and enabled access to courses. This is the main idea
'Verbose' means using or containing more words than necessary. 'Concise' is the opposite
'Ephemeral' means lasting for a very short time. 'Transient' is the closest synonym
'Each' is singular, so 'has' is correct. 'Their assignment' (singular) matches with 'each'
'Ubiquitous' means being or appearing everywhere at the same time; omnipresent