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Spanning Tree Protocol Questions
On a Cisco Catalyst switch, which command displays the MAC address forward/filter table (the Layer 2 CAM table)?
Two-switch redundancy without STP: Two switches are connected with two crossover links for redundancy, but Spanning Tree Protocol (STP) is disabled. What will happen on this switched network?
Characteristics of Layer 2 switching: which of the following are typically provided? (Hardware-based bridging using ASICs, wire-speed forwarding, low latency, and low cost)
Effect of segmenting an Ethernet with a bridge/switch: which statements correctly describe the impact on collision and broadcast domains?
Switch learning and forwarding behavior: If a switch receives a frame where the source MAC is not yet in the MAC table but the destination MAC is present, what does the switch do?
Collision vs broadcast domains: Which statement about what a switch and a router create is true in a default, non-VLAN Ethernet LAN?
Core Layer 2 switch functions that increase effective bandwidth include which items? (Address learning, Routing, Forwarding and filtering, Creating network loops, Loop avoidance, IP addressing)
Multiple copies of the same unicast frame in a switched LAN: under which circumstance is this most likely?
Switching and loop prevention (Layer 2): Which of the following is a Layer 2 control protocol specifically designed to maintain a loop-free topology in an Ethernet switched network?
Cisco Catalyst port security policy: You must permit exactly one host to learn dynamically on each access interface and shut the port on any violation. Which two interface-level commands meet this requirement?
Rapid Spanning Tree (IEEE 802.1w): On Cisco switches, which global configuration command enables the 802.1w RSTP behavior?
STP convergence state: After a spanning-tree topology has converged, which statement accurately describes the state of switch/bridge ports?
Purpose of Spanning Tree Protocol (STP) in a switched LAN: What primary problem does STP solve in Ethernet networks with redundant links?
Switch port LED indications: On a Cisco switch, a port Status LED that alternates between green and amber typically indicates which condition?
Edge ports and server links: You plan to connect a server on an access port and do not want STP delays on link-up. Which Cisco command should you use on that interface (safe edge behavior, not a global disable)?
Switch forwarding behavior: When a switch receives a frame and the destination MAC address is unknown (not present in the MAC table), what action does it take?