In OSI model dialogue control and token management are responsibilities of ?

In dial up remote access a client uses the ---- to create a physical connection to a part on a remote access server of the private network.

• [A] Public telephone network
• [B] Bank�??s branch network
• [C] Private network
• [D] Public local network

Which data communication method is used to transmit the data over a serial communication link?

• [A] Simplex
• [B] Half-duplex
• [C] Full duplex
• [D] All of above

How often are BPDUs sent from a layer 2 device?

• [A] Every 2 seconds
• [B] Never
• [C] Every 10 minutes
• [D] Every 30 seconds

Which class of IP address provides a maximum of only 254 host addresses per network ID?

• [A] Class A
• [B] Class B
• [C] Class C
• [D] Class D
• [E] Class E

Which of the following devices takes data sent from one network device and forwards it to all devices on the network regardless of the intended recipient?

• [A] DNS Server
• [B] Switch
• [C] Hub
• [D] Gateway