單項選擇題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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1.多項選擇題

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.

2.多項選擇題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.

3.單項選擇題Which version of spanning tree is recommended for the enterprise campus?()

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

4.多項選擇題Under which two circumstances should Spanning Tree Protocol be implemented?()

A. to ensure a loop-free topology
B. to protect against user-side loops
C. when a VLAN spans access layer switches
D. for the most deterministic and highly available network topology
E. because of the risk of lost connectivity without Spanning Tree Protocol

5.單項選擇題

Refer to the exhibit. Which recommended practice is applicable?()

A. If no core layer is deployed, the design will be easier to scale.
B. If no core layer is deployed, there will be fewer cabling requirements.
C. If no core layer is deployed, the distribution switches should not be fully meshed.
D. A dedicated campus core layer is not needed for connecting fewer than five buildings.
E. A dedicated campus core layer should be deployed for connecting three or more buildings.

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