Question

Which entry will have a special value in the linked list?

(a) first entry

(b) last entry

(c) second entry

(d) second last entry

I had been asked this question by my college professor while I was bunking the class.

Enquiry is from Buffer Exchange topic in section Buffering and other Data Structures of Embedded Systems

Answer 1

Right option is (b) last entry

The explanation: The last entry will have a special value that indicates that the entry is the last one but the first entry uses the pointer entry to locate the position.