7.5 Switch Security

A virtual LAN can be created using which of the following?

Switch

When configuring VLANs on a switch, what is used to identify VLAN membership of a device?

Switch port

You want to increase the security of your network by allowing only authenticated users to be able to access network devices through a switch. Which of the following should you implement?

802.1x

Which of the following applications typically use 802.1x authentication? select two

Controlling access through a wireless access point Controlling access though a switch

You manage a network that uses a single switch. All ports within your building connect through the single switch. In the lobby of your building are three RJ-45 ports connected to the switch. You want to allow visitors to plug into these ports to gain Internet Access, but they should not have access to any other devices on your private network. Employees connected throughout the rest of your building should have both private and Internet access. Which feature should you implement?

VLANs

When configuring VLANs on a switch, what type of switch ports are members of all VLANs defined on the switch?

Trunk ports

You manage a network that uses a single switch. All ports within your building connect through the single switch. In the lobby of your building are three RJ-45 ports connected to the switch. You want to make sure that visitors cannot plug in their computer to the free network jacks and connect to the network. However, employees who plug into those same jacks should be able to connect to the network. What feature should you configure?

Port authentication

Which of the following solutions would you implement to eliminate switching loops?

Spanning Tree

You manage a single subnet with three switches. The switches are connected to provide redundant paths between the switches. Which feature prevents switching loops and ensures there is only a single active path between any two switches?

Spanning tree

In which of the following situations would you use port security?

You wanted to restrict the devices that could connect through a switch port

You are the network administrator for a city library. Throughout the library are several groups of computers that provide public access to the Internet. Supervision of these computers has been difficult. You’ve had problems with patrons brining personal laptops into the library and disconnecting the network cables from the library computers to connect their laptops to the Internet. The library computers are in groups of four. Each group of four computers is connected to a hub that is connected to the library network through an access point on a switch. You want to restrict access to the network so only the library computers are permitted connectivity to the internet. What can you do?

Configure port security on the switch

You run a small network for your business that has a single router connected to the internet and a single switch. You keep sensitive doc. on a computer that would like to keep isolated from other computers on the network. Other hosts on the network should not be able to communicate with this computer through the switch, but you still need to access the network through the computer. What should you implement?

VLAN

Which of the following best describes the concept of virtual LAN?

Device on the same network logically grouped as if they were on separate networks

Your company is a small start-up company that has leased office in a building shared by other businesses. All businesses share a common network infrastructure. A single switch connects all devices in the building to the router that provides Internet access. You would like to make sure that your computers are isolated from computers used by other companies. Which feature should you request to have implemented?

VLAN

You manage a network that uses multiple switches. You want to provide multiple paths between switches so that if one link goes down, an alternate path is available. What feature should your switch support?

Spanning tree