| 1 | What is the primary function of all flow-control mechanisms? |
| Answer: | Reduce the probability of or completely avoid receive buffer overruns. |
| 2 | What are the two categories of QoS algorithms? |
| Answer: | Queue management and queue scheduling. |
| 3 | What is the name of the queue management algorithm historically associated with tail-drop? |
| Answer: | FIFO. |
| 4 | Which specification defines traffic classes, class groupings, and class-priority mappings for Ethernet? |
| Answer: | The IEEE 802.1D-2004 specification. |
| 5 | What is the name of the first algorithm used for AQM in IP networks? |
| Answer: | Random Early Detection (RED). |
| 6 | What are the names of the two dominant QoS models used in IP networks today? |
| Answer: | The Integrated Services Architecture (IntServ) and the Differentiated Services Architecture (DiffServ). |
| 7 | What is the name of the TCP state variable that controls the amount of data that may be transmitted? |
| Answer: | The Congestion Window (CWND). |
| 8 | What is the primary flow-control mechanism employed by iSCSI? |
| Answer: | The R2T PDU. |
| 9 | What are the names of the two QoS subfields currently available for use in FC-SANs? |
| Answer: | Preference and Priority. |
| 10 | What is the primary flow-control mechanism employed by FCP? |
| Answer: | The FCP_XFER_RDY IU. |
| 11 | Are FCIP devices required to map FC QoS mechanisms to IP QoS mechanisms? |
| |
| Answer: | No. |