Understanding Fiber Optics and Routing

What is a fiber optic cable and how does it work?

• A fiber optic cable transmits data as electrical signals through copper wires.

• A fiber optic cable is used for storing data in magnetic disks.

• A fiber optic cable transmits data as light signals through thin strands of glass or plastic fibers.

• A fiber optic cable transmits data as sound waves through air.

List the advantages of using fiber optic cables over copper cables.

• Higher power consumption than copper cables

• Better resistance to physical damage

• Higher bandwidth and faster data transmission, less susceptibility to electromagnetic interference, longer transmission distances without signal loss, lighter and thinner than copper cables.

• Lower installation costs than copper cables

What are the two main types of fiber optic cables?

• Single-mode fiber and multi-mode fiber

• Active fiber and passive fiber

• Coaxial cable and twisted pair cable

• Plastic fiber and glass fiber

Explain the concept of total internal reflection in fiber optics.

• Total internal reflection occurs only in water bodies.

• Total internal reflection is the phenomenon that allows light to be transmitted through fiber optics by reflecting completely within the fiber core.

• Total internal reflection is a method of amplifying light signals.

• Light can escape the fiber core without any loss.

What is static routing and when is it typically used?

• Static routing is used in large, dynamic networks with frequent changes.

• Static routing is only applicable in wireless networks.

• Static routing automatically adjusts to network changes and failures.

• Static routing is typically used in small networks or in scenarios where routes do not change frequently, such as in point-to-point connections or when a network has a simple topology.

Describe the process of configuring a static route in Cisco Packet Tracer.

• Enter 'route add [destination_network] [subnet_mask] [next_hop_address]' in privileged exec mode.

• Use the command 'set route [destination_network] [subnet_mask] [next_hop_address]' in interface mode.

• Configure static routes through the GUI by selecting 'Routing' and then 'Add Route' in Packet Tracer.

• Use the command 'ip route [destination_network] [subnet_mask] [next_hop_address]' in global configuration mode.

What are the limitations of static routing?

• Static routing requires no configuration or management.

• Static routing is always faster than dynamic routing.

• Limitations of static routing include lack of scalability, inability to adapt to network changes, and increased administrative overhead.

• Static routing automatically adjusts to network failures.

Define dynamic routing and its advantages over static routing.

• Dynamic routing does not improve fault tolerance compared to static routing.

• Dynamic routing is a method that automatically adjusts routes based on current network conditions, offering advantages such as adaptability to network changes, reduced administrative overhead, and improved fault tolerance compared to static routing.

• Static routing is more adaptable to network changes than dynamic routing.

• Dynamic routing requires manual configuration for each route.

Name two common dynamic routing protocols used in networks.

• SMTP, FTP

• RIP, BGP

• HTTP, SNMP

• OSPF, EIGRP

How does the Routing Information Protocol (RIP) function?

• RIP uses a link-state algorithm to share routing information based on bandwidth.

• RIP relies on manual configuration of routes without any automatic updates.

• RIP uses a distance-vector algorithm to share routing information and maintain routing tables based on hop count.

• RIP maintains routing tables using a centralized database approach.