Chapter 7


1

Is reliable delivery required by all applications?

Answer:

No.

2

Does UDP provide segmentation/reassembly services?

Answer:

No.

3

What is the purpose of the Destination Port field in the UDP packet header?

Answer:

It enables the receiving host to properly route incoming packets to the appropriate Session Layer protocol.

4

Does UDP provide notification of dropped packets?

Answer:

Notification is optional and is supported only in certain situations.

5

Is the segmentation process controlled by TCP or the ULP?

Answer:

TCP performs segmentation and controls the process.

6

Why is the TCP flow-control mechanism called a sliding window?

Answer:

Because the advertised receive buffer size is allowed to fluctuate dynamically.

7

What is the formula for calculating the bandwidth-delay product?

Answer:

Bandwidth * Round-Trip Time (RTT)

8

Does TCP guarantee in-order delivery?

Answer:

Yes.

9

What is the purpose of the TCP ISN?

Answer:

To synchronize the data byte counter in the responding host's TCB with the data byte counter in the initiating host's TCB.

10

Is the segmentation process controlled by FC-2 or the ULP?

Answer:

FC-2 performs segmentation, but the ULP controls the process.

11

Which two fields in the PLOGI ELS facilitate negotiation of end-to-end delivery mechanisms in modern FC-SANs?

Answer:

The Common Service Parameters field and the Class 3 Service Parameters field.

12

How is the missing frame error recovery behavior of an FC node determined?

Answer:

The Exchange Error Policy is specified by the Exchange originator on a per-Exchange basis via the Abort Sequence Condition bits of the F_CTL field of the FC header of the first frame of each new Exchange.

13

After completing PLOGI with the switch, what does each initiator N_Port do?

Answer:

Each initiator N_Port queries the FCNS and then performs PLOGI with each target N_Port discovered via the FCNS.




Storage Networking Protocol Fundamentals
Storage Networking Protocol Fundamentals (Vol 2)
ISBN: 1587051605
EAN: 2147483647
Year: 2007
Pages: 196
Authors: James Long

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