单项选择题

When a router has to make a rate transition from LAN to WAN, what type of congestion needs should be considered in the network design?（）

A. RX-queue deferred
B. TX-queue deferred
C. RX-queue saturation
D. TX-queue saturation
E. RX-queue starvation
F. TX-queue starvation

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多项选择题

Which two practices will avoid Cisco Express Forwarding polarization?（）

A. The core layer should use default Layer 3 hash information.
B. The core layer should use default Layer 4 hash information.
C. The distribution layer should use default Layer 3 hash information.
D. The distribution layer should use default Layer 4 hash information.
E. The core layer should use Layer 3 and Layer 4 information as input to the Cisco Expressing Forwarding hashing algorithm.
F. The distribution layer should use Layer 3 and Layer 4 information as input into the Cisco Expressing Forwarding hashing algorithm.

多项选择题

Which two statements correctly identify considerations to take into account when deciding on Campus QoS Design elements?（）

A. Voice needs to be assigned to the hardware priority queue.
B. Voice needs to be assigned to the software priority queue.
C. Call signaling must have guaranteed bandwidth service.
D. Strict-priority queuing should be limited to 50 percent of the capacity of the link.
E. At least 33 percent of the link bandwidth should be reserved for default best-effort class.

单项选择题

Which version of spanning tree is recommended for the enterprise campus?（）

A.CST
B.MST
C.STP
D.PVST+
E.RPVST+