Match the following:
Let us match each layer from Group-1 to its corresponding data unit in Group-2:
(A) Physical layer uses transmission units of individual bits: \(\Rightarrow\) e. Bit
(B) Data Link layer works with frames for error detection and framing: \(\Rightarrow\) d. Frame
(C) Network layer handles packets, often called datagrams: \(\Rightarrow\) b. Datagram
(D) Transport layer manages segments in protocols like TCP: \(\Rightarrow\) a. Segment
(E) Application layer deals with complete messages as seen by applications: \(\Rightarrow\) c. Message
In asynchronous transmission, the gap time between bytes is ________.
For a two-port network to be reciprocal, it is necessary that ……..