Which of the following is created on a 48-port switch with five active VLANs?
A.
48 networks, five segments B.
48 collision domains, five broadcast domains C.
240 private networks D.
240 usable IP addresses.
B.
Which of the following is created on a 48-port switch with five active VLANs?
A.
48 networks, five segments
B.
48 collision domains, five broadcast domains
C.
240 private networks
D.
240 usable IP addresses.
B.
The correct answer is B. 48 collision domains, five broadcast domains.
Explanation:
A VLAN (Virtual Local Area Network) is a logical grouping of devices within a network. VLANs are used to segment a network, which provides a number of benefits, such as increased security, better traffic management, and improved network performance.
In this scenario, we have a 48-port switch with five active VLANs. This means that the switch has been configured to create five separate broadcast domains, each with its own set of VLANs.
A broadcast domain is a logical division of a network in which all devices can directly communicate with each other using broadcast messages. A collision domain, on the other hand, is a network segment in which all devices share the same physical communication medium, such as a hub or a switch port.
Since a switch operates at Layer 2 of the OSI (Open Systems Interconnection) model, it separates collision domains, which means that each switch port is a separate collision domain. Therefore, in this scenario, the switch would create 48 collision domains (one for each port) and five broadcast domains (one for each VLAN).
Option A is incorrect because a network refers to a group of devices that can communicate with each other, not a segment. In this scenario, there are still only 48 devices connected to the switch, regardless of the number of VLANs.
Option C is incorrect because the number of private networks that can be created depends on the subnet mask being used. Without more information about the subnet mask, it is impossible to determine the number of private networks that can be created.
Option D is incorrect because the number of usable IP addresses that can be created depends on the subnet mask being used. Without more information about the subnet mask, it is impossible to determine the number of usable IP addresses that can be created.