Configuring Layer 3 Routes

Which of the following should a network administrator use to configure Layer 3 routes? (Choose two.)

A.

Multilayer switch

B.

Firewall

C.

Hub

D.

Bridge

E.

Modem

F.

Media converter.

AB.

Layer 3 routing is the process of forwarding network traffic between different networks based on their IP addresses. To configure Layer 3 routes, a network administrator would typically use a routing device such as a router, switch or firewall.

Of the options provided, the two devices that can be used to configure Layer 3 routes are:

A. Multilayer switch: A multilayer switch is a switch that can perform Layer 3 routing functions. It operates at both Layer 2 (data link layer) and Layer 3 (network layer) of the OSI model. A multilayer switch can be configured to forward traffic between VLANs or different networks, based on IP addresses and routing protocols such as OSPF, EIGRP or BGP.

B. Firewall: A firewall is a network security device that can be used to filter and control network traffic based on a set of rules. Many modern firewalls also include routing capabilities, allowing them to forward traffic between different networks based on IP addresses. A network administrator can configure Layer 3 routes on a firewall using a routing protocol or static routes.

C. Hub: A hub is a networking device that operates at Layer 1 (physical layer) of the OSI model. It simply receives incoming data packets from one port and broadcasts them to all other ports. Hubs do not perform any Layer 2 or Layer 3 functions and cannot be used to configure Layer 3 routes.

D. Bridge: A bridge is a networking device that operates at Layer 2 (data link layer) of the OSI model. It is used to connect two or more network segments together and forward traffic between them based on MAC addresses. Bridges do not perform any Layer 3 functions and cannot be used to configure Layer 3 routes.

E. Modem: A modem is a device that converts digital signals to analog signals and vice versa, allowing computers to communicate over telephone lines or other analog mediums. Modems do not perform any networking functions and cannot be used to configure Layer 3 routes.

F. Media converter: A media converter is a device that can convert between different types of network media, such as fiber optic and copper cables. Media converters do not perform any Layer 3 functions and cannot be used to configure Layer 3 routes.

Therefore, the correct answers to this question are A (Multilayer switch) and B (Firewall).