On which type of device is every port in the same collision domain?
A.
a router
B.
a Layer 2 switch
C.
switch
D.
a hub
E.
a Layer 3 switch
Explanation:
The definition of a collision domain is a set of LAN devices whose frames could collide with one another. This happens with hubs, bridges, repeaters and wireless
access points as only one device can send and receive. If more than one device tries sending or receiving, the information is lost and irrecoverable it will need to be
resent. This can slow down network performance along with making it a security threat.
D. a HUB
Explanation: Collision domainA collision domain is, as the name implies, a part of a network where packet collisions can occur. A collision occurs when two devices send a packet at the same time on the shared network segment. The packets collide and both devices must send the packets again, which reduces network efficiency. Collisions are often in a hub environment, because each port on a hub is in the same collision domain. By contrast, each port on a bridge, a switch or a router is in a separate collision domain.