RSE CCNA 2 Chapter 4 Quiz Online

The automated attendant feature increases the speed of voice services by routing calls directly to individuals or departments. Point-to-point video and video conferencing describe video services on a converged network. An IT management interface is part of a converged network solution that allows IT personnel to facilitate moves, adds, and changes through a centralized application.

Adding additional switches and devices increases the broadcast domain. A broadcast sent from any PC is received by the three other PCs.

Stackable switches provide fault tolerance and bandwidth availability by using special cables between switches and are less costly to implement than modular switches. A non-stackable switch does not provide these features. A fixed configuration switch is a single switch that does not support features beyond those that originally came with it. A modular switch usually provides fault tolerance and features for bandwidth availability but is rather costly to implement.

A modular switch provides fault tolerance and features for bandwidth availability and future expansion by using line cards but is rather costly to implement. Stackable switches provide fault tolerance and bandwidth availability by using special cables between the switches and are less costly to implement than modular switches. A nonstackable switch does not provide these features. A fixed configuration switch is a single switch that does not support features beyond those that originally came with it.

A switch that receives a broadcast frame will forward the frame out all other interfaces, including interfaces that connect to other switches. These switches will also perform the same forwarding action. By adding more switches to the network, the size of the broadcast domain increases.

The main purpose of devices in the access layer is to supply network access to end users. Distribution layer devices provide services such as routing and policy functions. The core layer provides high-speed backbone connectivity.

Store-and-forward switching performs an error check on an incoming frame after receiving the entire frame on the ingress port. Switches which use this method have the flexibility to support any mix of Ethernet speeds. The cut-through method begins the forwarding process after the destination MAC address of an incoming frame is looked up and the egress port has been determined.

The first step a switch does when processing a frame is to see if the source MAC address is in the MAC address table. If the address is not there, the switch adds it. The switch then examines the destination MAC address and compares it to the MAC address table. If the address is in the table, the switch forwards the frame out the corresponding port. If the address is missing from the table, the switch will forward the frame to all ports except the port through which the frame arrived.

Adding a Layer 2 switch to a network increases the number of collision domains and increases the size of the broadcast domain. Layer 2 switches do not decrease the amount of broadcast traffic, do not increase the amount of network collisions and do not increase the number of dropped frames.

The access layer is the lowest layer and it provides network access to users. The distribution layer has many functions, but it aggregates data from the access layer, provides filtering, policy control, and sets Layer 3 routing boundaries. The core layer provides high speed connectivity.

For efficiency, scalability, and cost-effectiveness, building an extended star topology from a centralized site to all other campus sites is recommended. A mesh topology is much more expensive, and bus and dual ring topologies are more difficult to troubleshoot and maintain.

A rack unit or RU is a specific measurement related to the height of the switch. A switch with a 1 RU rating is smaller than a 2 RU switch. Port density measures the number of ports on a switch. Modularity influences the number of available line cards. Port speed measures the number of bits per second that can flow through a given port.

The first step a switch does when processing a frame is to see if the source MAC address is in the MAC address table. If the address is not there, the switch adds it. The switch then examines the destination MAC address and compares it to the MAC address table. If the address is in the table, the switch forwards the frame out the corresponding port. If the address is missing from the table, the switch will broadcast the frame to all ports except the port through which the frame arrived.

Converged networks have traditional user traffic as well as digitized voice and video traffic that once required separate networks. Now, instead of separate groups managing separate networks, one group of personnel can manage the network.