Chapter 11: Switching and Virtual LANS

C. Trunking Trunking allows switches to pass VLAN information between them.

10. Which of the following features of a switch will allow two switches to pass VLAN network information? A. PoE B. VLANs C. Trunking D. STP

D. Switches configured with VLANs VLANs allow you to segment networks, reduce broadcast domain size, and improve performance.

11-1. You want to improve network performance by increasing the bandwidth available to hosts and limiting the size of the broadcast domains. Which of the following options will achieve this goal? A. Managed hubs B. Bridges C. Switches D. Switches configured with VLANs

A. Address learning C. Forwarding and filtering E. Loop avoidance Layer 2 switches learn addresses, forward/filter frames, and avoid loops to improve network efficiency.

11-11. What are the distinct functions of layer 2 switching that increase available bandwidth on the network? (Choose three.) A. Address learning B. Routing C. Forwarding and filtering D. Creating network loops E. Loop avoidance F. IP addressing

B. A switch creates separate collision domains but one broadcast domain. A router provides a separate broadcast domain. Switches create multiple collision domains but one broadcast domain, while routers create separate broadcast domains.

11-12. Which of the following statements is true? A. A switch creates a single collision domain and a single broadcast domain. A router creates a single collision domain. B. A switch creates separate collision domains but one broadcast domain. A router provides a separate broadcast domain. C. A switch creates a single collision domain and separate broadcast domains. A router provides a separate broadcast domain as well. D. A switch creates separate collision domains and separate broadcast domains. A router provides separate collision domains.

C. With the exception of the source port, floods the network with the frame looking for the device If the destination MAC is unknown, the switch floods the frame to all ports except the one it came from.

11-13. What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table? A. Forwards the switch to the first available link B. Drops the frame C. With the exception of the source port, floods the network with the frame looking for the device D. Sends back a message to the originating station asking for a name resolution

C. Add the source address and port to the MAC address table and forward the frame out the destination port The switch learns the source MAC address and forwards the frame to the destination.

11-14. If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame? A. Discard it and send an error message back to the originating host B. Flood the network with the frame C. Add the source address and port to the MAC address table and forward the frame out the destination port D. Add the destination to the MAC address table and then forward the frame

D. When you have multiple switches with multiple VLANs and you want to share the VLAN database from one switch to all the others VTP is used to share VLAN information between multiple switches in a network.

11-15. When would you configure VTP on a switch? A. When you have hubs connected in your network B. When you have redundant links between switches C. When you have multiple hosts in multiple VLANs and you want to share all the data between hosts without a router D. When you have multiple switches with multiple VLANs and you want to share the VLAN database from one switch to all the others

A. When all ports are in the forwarding state B. When all ports are in the blocking state STP is converged when all ports are either in the forwarding or blocking state.

11-16. When is STP said to be converged on the root bridge? (Choose two.) A. When all ports are in the forwarding state B. When all ports are in the blocking state C. When all ports are in the listening state D. When all ports are in the learning state

C. Learning D. Forwarding MAC addresses are learned during the learning and forwarding states.

11-17. In which two states is the MAC address table populated with addresses? (Choose two.) A. Blocking B. Listening C. Learning D. Forwarding

B. VLANs VLANs will help reduce broadcast traffic and improve performance in the network.

11-18. You have multiple departments all connected to switches, with crossover cables connecting the switches together. However, response time on the network is still very slow even though you have upgraded from hubs to switches. What technology should you implement to improve response time on the networks? A. STP B. VLANs C. Convergence D. OSPF

C. QoS Quality of Service (QoS) prioritizes voice traffic over data traffic to improve sound quality.

11-19. If you are configuring voice VLANs, which of the following should you configure on the switch ports to provide a higher precedence to voice traffic over data traffic to improve sound quality? A. Access VLANs B. VTP C. QoS D. STP

B. Access D. Trunk Access ports connect end devices, while trunk ports allow VLAN information to pass between switches.

11-2. The types of ports that can be found on a switch are _____ and _____. (Choose two.) A. VLAN Trunk Protocol B. Access C. 802.1Q D. Trunk

B. It can create overhead on the switch. Port spanning (mirroring) can cause overhead on the switch, which can affect performance.

11-20. What is a disadvantage of using port spanning? A. It breaks up broadcast domains on all ports. B. It can create overhead on the switch. C. It makes the switch one large collision domain. D. It makes the switch fast between only two ports instead of all ports.

C. VLANs VLANs create separate broadcast domains at Layer 2.

11-3. Which switching technology reduces the size of a broadcast domain? A. ISL B. 802.1Q C. VLANs D. STP

C. 802.1D E. 802.1w 802.1D is the original version of STP, while 802.1w is the faster version called Rapid Spanning Tree Protocol (RSTP).

11-4. Which of the following are IEEE versions of STP? (Choose two.) A. 802.1X B. VLANs C. 802.1D D. 802.11 E. 802.1w

D. The switch port the host is connected to is not configured to the correct VLAN membership. E. STP shut down the port. The port may be in the wrong VLAN or STP may have disabled the port due to a loop detection.

11-5. You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be? (Choose two.) A. The router is not configured for the new host. B. The STP configuration on the switch is not updated for the new host. C. The host has an invalid MAC address. D. The switch port the host is connected to is not configured to the correct VLAN membership. E. STP shut down the port.

B. They allow logical grouping of users by function. C. They can enhance network security. F. They increase the number of broadcast domains while decreasing the size of the broadcast domains. VLANs allow logical grouping of users, enhance security, and reduce the size of broadcast domains.

11-6. Which of the following are benefits of VLANs? (Choose three.) A. They increase the size of collision domains. B. They allow logical grouping of users by function. C. They can enhance network security. D. They increase the size of broadcast domains while decreasing the number of collision domains. E. They simplify switch administration. F. They increase the number of broadcast domains while decreasing the size of the broadcast domains.

B. STP Spanning Tree Protocol (STP) is used to prevent loops in a Layer 2 switched network.

11-7. Which of the following is a layer 2 protocol used to maintain a loop-free network? A. VTP B. STP C. RIP D. CDP

C. Port mirroring Port mirroring allows you to see all traffic on a switch port for analysis purposes.

11-9. You connect your host to a switch that is running network analysis software. However, you are not seeing any packets from the server. What do you need to implement on the switch to see all the packet information? A. VLANs B. STP C. Port mirroring D. Authentication

A. It increases the number of collision domains. E. It makes smaller collision domains. Switches break up collision domains, creating more, smaller collision domains.

8. What is the result of segmenting a network with a bridge (switch)? (Choose two.) A. It increases the number of collision domains. B. It decreases the number of collision domains. C. It increases the number of broadcast domains. D. It decreases the number of broadcast domains. E. It makes smaller collision domains. F. It makes larger collision domains.