Question

Among the issues mentioned what is not common in a Wired Ethernet based network.

Retransmissions
Noise
Signal Loss
Collisions

Answer 1

The answer to this question is Noise. 

All other option are related to Wired Ethernet based network.

Ethernet is the most broadly introduced local area network (LAN) innovation. Ethernet is a connection layer convention in the TCP/IP stack, portraying how organized gadgets can arrange information for transmission to other system gadgets on a similar system section, and how to put that information out on the system association.

Wireless systems might be advantageous, however wired systems beat Wi-Fi from every other perspective. Wired systems are quicker, they're generally solid, and they're secure. Unless you're perched on the lounge chair with a PC, or interfacing a Wi-Fi-just gadget, for example, an iPad, wired ethernet is the better approach.