Ethernet a link layer protocol in the TCP$/$IP stack, describing how networked devices can format data for transmission to other network devices on the same network segment, and how to put that data out on the network connection.

Wireless fidelity $-$ technology for wireless local area networking with devices base on the IEEE $802\mathrm{.}11$ standards

Dial$-$up internet access$-$ form of internet access that uses the facilities of the public switched telephone network to establishing a connection to an internet service provider by dialing a conventional telephone line

Advantages and disadvantages of Ethernet

Reliability: Ethernet is very reliable compared to others forms

Speed: the speeds are unlimited compared to others $100$Mbps for fast Ethernet, $1000$mbps for Gigabit Ethernet

Data security: it uses a common firewalls for data security.

Cons

Only for short distance networks $-$ it's limited to $350$ feet without the daisy$-$chaining switches together. Has limited mobility. Crosstalk with longer cable runs.

Advantages and disadvantages of Dialup

It's slow compared to other forms of internet communication at $53$Kbs per second. It's very expensive compared to the others.

Advantages and disadvantages of wireless

Convenience $-$ it allows the users to access network resources from nearly any convenient location within the stated parameter. Mobility $-$ individual can access the internet even outside their normal work environment.

The wireless network has the following disadvantages. It is a bit more difficult to setup properly. There is also a risk of outsiders accessing the network unless security protocols are enabled. It is significantly slower than a wired network. And finally, the network is sometimes less stable where the wireless reception is impaired by a number of factors like large distances and presence of objects between wireless devices and other wireless networks