Data Communication and Computer Network
Network Models
Q. The ______ layer adds a header to the packet coming from the upper layer that includes the logical addresses of the sender and receiver.
A.  physical B.  data link C.  network D.  none of the above
Similar Questions
1. The Internet model consists of _______ layers.
A.  Three B.  Five C.  Seven D.  Eight
2. The process-to-process delivery of the entire message is the responsibility of the _______ layer.
A.  Network B.  Transport C.  Application D.  Physical
3. The _______ layer is the layer closest to the transmission medium.
A.  Physical B.  Data link C.  Network D.  Transport
4. Mail services are available to network users through the _______ layer.
A.  Data link B.  Physical C.  Transport D.  Application
5. As the data packet moves from the upper to the lower layers, headers are _______.
A.  Added B.  Removed C.  Rearranged D.  Modified
6. The _______ layer lies between the network layer and the application layer.
A.  Physical B.  Data link C.  Transport D.  None of the above
7. Layer 2 lies between the physical layer and the _______ layer.
A.  Network B.  Data link C.  Transport D.  None of the above
8. When data are transmitted from device A to device B, the header from A's layer 4 is read by B's _______ layer.
A.  Physical B.  Transport C.  Application D.  None of the above
9. The _______ layer changes bits into electromagnetic signals.
A.  Physical B.  Data link C.  Transport D.  None of the above
10. . Which of the following is an application layer service?
A.  Remote log-in B.  File transfer and access C.  Mail service D.  All the above
DATA COMMUNICATION AND COMPUTER NETWORK TOPICS