Which of the following is not an application layer service?
A. Network virtual terminal
B. File transfer, access, and management
C. Mail service
D. Error control
In _________ systems, resources are allocated on demand.
A. Packet switching
B. Circuit switching
C. Line switching
D. Frequency switching
What are the Methods to move data through a network of links and switches?
A. Packet switching and line switching
B. Circuit switching and line switching
C. Line switching and bit switching
D. Packet switching and circuit switching
Most packet switches use this principle ____________
A. Stop and wait
B. Store and forward
C. Store and wait
D. Stop and forward
A local telephone network is an example of a _______ network.
A. Packet switched
B. Circuit switched
C. Bit switched
D. Line switched