What is the primary significance of a MAC address on a NIC (Network Interface Card)?

2, 5, 11, 23, ?

Select the missing number from the given responses:

15 Select the number from among the given options that can replace the question mark (?) in the following series.

24, 48, 51, 204, 209, ?

C/JQ : B/GT : : Z/CX : ?

Select the missing number from the given responses. 

In each of the following questions, select the related number from the given alternatives:

8/15 : 2/5 : : 16/21 : ?

A series is given with one term missing. Choose the correct alternatives from the given ones that will complete the series.

Select the number from among the given option that can replace the question mark (?) in the following series.

6, 31, 126, 381, 766, ?

Find the missing term: