Hash | MCQs

Explanation

A hashtag (#) is not a punctuation mark;

it is a symbol used primarily on social media to tag keywords or topics.

The other options are all punctuation marks used to structure and clarify written text

• comma (,),
• period (.), 
• exclamation mark (!)

.

Explanation

Hishām ibn ʿAbd al-Malik,

Born 691.

Died Feb. 6, 743.

Tenth caliph, who reigned during the final period of prosperity and glory of the Umayyads.

Explanation

A graph is a non-linear data structure that has a finite number of vertices and edges, and these edges are used to connect the vertices.

Explanation

On average, searching in a well-implemented hash table has a time complexity of O(1) (constant time) due to direct indexing using the hash function.

In the worst-case scenario, if many elements hash to the same index (collisions), the time complexity can degrade to O(n) (linear time).