Question

Which of the following are reasons to configure vlans on a switch as opposed to using switches without vlans?

a. increased number of collision domains
b. increased number of broadcast domains
c. allowing broadcast traffic between subnets
d. increased security
e. redundant paths between two hosts

Answer 1

Configuring VLANs on a switch provides increased number of collision domains, increased number of broadcast domains, and increased security.

Therefore, the correct options are:

a. increased number of collision domains

b. increased number of broadcast domains

d. increased security.

Step-by-step explanation:

A virtual local area network (VLAN) is a virtualized connection that connects multiple devices and network nodes from different LANs into one logical network.

The reasons to configure VLANs on a switch as opposed to using switches without VLANs are:

1. Increased number of collision domains: VLANs separate traffic into different virtual networks, reducing the chance of collisions between devices.
2. Increased number of broadcast domains: VLANs limit broadcasts to only devices within the same VLAN, reducing network congestion.
3. Increased security: VLANs can be used to group devices with similar security requirements, allowing for better control of network access.

NOTE: A switch supports a maximum of 4096 VLANs, among which VLANs 0 and 4095 are reserved for system use, and VLAN 1 is the default VLAN. Therefore, you can only create VLANs 2 to 4094.