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CHAPTER 30
PRACTICE SET
Questions
Q30-1. We cannot define the absolute order, but in normal situation we will rank them
as follows:
Q30-3. We cannot define the absolute order, but in normal situation we will rank them
as follows:
Q30-5. Our choice is VoIP. The goal is to make VoIP similar to the telephone conver-
sation we have over the phone using circuit switching.
Q30-7. None of these applications actually fit in this flow class. It is mostly designed
for interactive multimedia applications.
Q30-9. FIFO queueing and priority queueing are techniques used for scheduling.
Q30-11. IntServ uses two flow specifications: Rspec and Tspec.
a. Rspec (Resource specification) defines the resources that the flow needs to
reserve before starting the communication.
b. Tspec (Traffic specification) defines the traffic specification.
Q30-13. IntServ is called destination-base service because the destination host needs to
define the type of service required to start the communication.
Q30-15. IntServ is designed for multicast communication. However, unicast is a spe-
cial case of multicast in which there is only one member in the group.
Q30-17. In IntServ, the resources needs to be reserved before the communication starts.
We need to find the resources needed at each router. We need to send Path and
1. SNMP 2. HYYP 3. SMTP 4. VoIP
1. VoIP 2. SNMP 3. HTTP 4. SMTP
