Network Components and Devices
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Questions and Answers

What does a Layer 2 device do with the electrical signal it receives in one port?

  • It directly forwards the signal to another port.
  • It interprets the bits and makes a filtering or forwarding decision. (correct)
  • It sends the signal to a router for further processing.
  • It discards the signal due to insufficient information.

    • What is the primary function of a switch in a LAN segment?

  • To provide network troubleshooting tools.
  • To connect multiple devices together in a LAN segment. (correct)
  • To provide power-over-ethernet to devices.
  • To connect devices to the Internet.

    • What type of processors are used in switches to make switching decisions?

  • Application-Specific Integrated Circuits (ASICs) (correct)
  • Digital Signal Processors (DSPs)
  • Graphics Processing Units (GPUs)
  • Central Processing Units (CPUs)

    • What is a broadcast domain?

    <p>A logical network composed of all devices reached by sending a frame to the data link layer broadcast address.</p> Signup and view all the answers

    What is the purpose of a MAC address table in a switch?

    <p>To list all known MAC addresses for forwarding/filtering decisions.</p> Signup and view all the answers

    What is another name for the MAC address table in Cisco LAN switches?

    <p>Content-Addressable Memory (CAM) table</p> Signup and view all the answers

    What is the primary function of a router?

    <p>To connect different network segments</p> Signup and view all the answers

    What is the purpose of a routing table in a router?

    <p>To decide how to forward packets</p> Signup and view all the answers

    What is an access point used for?

    <p>To transmit network signals across radio-frequency channels</p> Signup and view all the answers

    What is the primary function of a wireless LAN controller?

    <p>To perform control functions for each LWAP</p> Signup and view all the answers

    What is the purpose of a router in a network?

    <p>To connect several smaller networks into a large network</p> Signup and view all the answers

    What is the primary function of a DSL router?

    <p>To access DSL services</p> Signup and view all the answers

    What is the primary function of a Wireless LAN Controller?

    <p>To manage Access Points (APs) in an enterprise environment</p> Signup and view all the answers

    What is the main purpose of a firewall?

    <p>To protect network devices from outside network users and/or malicious applications and files</p> Signup and view all the answers

    What is the term for a firewall device with advanced features, including deep packet inspection and URL filtering?

    <p>Next-Generation Firewall (NGFW)</p> Signup and view all the answers

    What is the purpose of the 'Action' component in a firewall rule?

    <p>To determine whether the rule permits or blocks connections</p> Signup and view all the answers

    What is the term for a device that forwards packets between the less secure and more secure parts of the network?

    <p>Firewall</p> Signup and view all the answers

    What is the purpose of the 'Service' component in a firewall rule?

    <p>To specify the ports of a given service or application</p> Signup and view all the answers

    What is the primary function of a hub in a network?

    <p>To interpret and regenerate clean signals</p> Signup and view all the answers

    What is the primary function of a router?

    <p>To switch data packets between different network segments</p> Signup and view all the answers

    What is the main difference between a passive hub and an active hub?

    <p>The amplification of data signals</p> Signup and view all the answers

    What is a collision domain?

    <p>A physical or logical area where signals may collide</p> Signup and view all the answers

    What distinguishes a Layer 3 switch from a traditional LAN switch?

    <p>Its ability to perform Layer 3 routing functions</p> Signup and view all the answers

    What is the function of a repeater in a network?

    <p>To amplify and forward data signals</p> Signup and view all the answers

    What is the basis for a router's forwarding decisions?

    <p>Destination IP addresses</p> Signup and view all the answers

    What is the difference between a hub and a router?

    <p>A hub operates at Layer 1, while a router operates at Layer 3</p> Signup and view all the answers

    What is the primary difference between a router and a Layer 3 switch?

    <p>The scope of network segments they can manage</p> Signup and view all the answers

    What is the result when a device sends a frame on a network segment within a collision domain?

    <p>Every device on the same segment will receive the frame</p> Signup and view all the answers

    What is the purpose of a router's multiple interfaces?

    <p>To connect to multiple LAN and WAN interfaces</p> Signup and view all the answers

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