Answer:
• Network intruders can access all computers on a network.
• Networks are costly to set up.
Explanation:
A network can be defined as a connection between the internet and the computer. A network is a means by which information or data are transmitted from one computer to another.
We have various types of networks and some of them are:
a) Local Area Network (LAN)
b) Wireless Local Area Network (WLAN)
c) Wide Area Network (WAN)
d) Campus Area Network (CAN)
e) Metropolitan Area Network (MAN)
f) Personal Area Network (PAN) e.t.c
The disadvantages of network are:
a) Network intruders such as computer hackers can easily access all computers on a network.
b) Networks are costly to set up.
It is of outermost importance that a network used by a computer is secured using security such as encryption in other to prevent data loss , hackers and exposure of information that are sensitive to computer users.