X.25 works at the ________ and ________ layers.

X.25 works at the ________ and ________ layers.

A.
Physical and Transport

B.
Network and Data Link

C.
Transport and Data Link

D.
Network and Physical

Explanation:
X.25 is a packet-switching technology that is used by
telecommunications services for data-only traffic. It is a subscriber-based service
that operates within the Network and Data Link layers.