Q1. Describe the various frames types of HDLC protocol?
Q2. Describe the features of the Stop-and-Wait ARQ?
Q3. Distinguish between:
a) Message switching, Packet switching and the Circuit switching.
b) Transport and Session layers of OSI model.
c) FDM and TDM multiplexing method.
Q4. Four 1-Kbps connections are multiplexed altogether. A unit is of 1 bit. Determine:
a) The duration of 1 bit before multiplexing.
b) The transmission rate of link.
c) Duration of a time slot.
d) Duration of a frame.
Q5. Describe the given CSMA schemes:
a) Non-persistent
b) 1-persistent
c) p-persistent
Q6. Router outside the organization receives a packet with destination address 190.240.7.91. Show how it determines the network address to route the packet.
Q7. A router within the organization receives the similar packet with destination address 190.240.33.91. Show how it determines the sub-network address to route the packet.