Which Cisco IOS command is used on a Cisco Catalyst 6500 series switch to view the spanning-tree protocol (STP) information for a virtual LAN (VLAN)? A. show spanning tree B. show spanning-tree vlan C. show spantree D. show spantree vlan Explanation: The show spanning-tree vlan Cisco IOS command is used on a Catalyst 6500 series […]

Your assistant just finished configuring a small test network as part of his training. The network is configured as shown in the diagram below: When testing the configuration, you find that Host A in the diagram cannot ping Host B. Which of the following pairs of connections are required to be in the same subnet […]

Which of the following protocols allow the root switch location to be optimized per VLAN? (Choose all that apply.) A. PVST+ B. RSTP C. PVRST D. STP Explanation: Both Per VLAN Spanning Tree Plus (PVST+) and Per VLAN Rapid Spanning Tree (PVRST) protocols allow for a spanning tree instance for each VLAN, allowing for the […]

Which is NOT a valid range for private IP addresses? A. 10.0.0.0 – 10.255.255.255 B. 172.16.0.0 – 172.31.255.255 C. 192.168.0.0 – 192.168.255.255 D. 192.255.255.255-193.0.0.0 Explanation: The range 192.255.255.255 – 193.0.0.0 is a valid public IP address range, not a private IP address range. The Internet Assigned Numbers Authority (IANA) has reserved the following three ranges […]

You are the network administrator for your company and have configured Cisco Discovery Protocol (CDP) in your network. You recently noticed that when devices send large numbers of CDP neighbor announcements, some devices are crashing. You decide to disable CDP on the router. Which command should you use to achieve the objective? A. no cdp […]