Must be a minimum of 100 words each
1) Chapter 9 LAN vs WAN
LAN and WAN are the most common networks. There are other networks that CH9 describes like PAN, WLAN, and MAN. A LAN is an internal (private) network connecting devices that communicate and send data across locally. WAN is the internet, a (public) network. There are different types of WAN connections like Static IPs, DHCP, PPPOE etc. A basic LAN and WAN topology usually involves modems, routers, and switches. There are two different types of switches, managed and unmanaged. There are also VLANs, Proxies, and VPNs. Most routers have the capability to port forward and also have extra security measures. One issue that may arise from incorrectly connecting two or more routers together is a double NAT type if an issue.
2) Chapter 9 Types of Networks
LAN (Local Area Network) is a computer network for mostly small, office, school or homes. LANs connect computers in order to share information confidentially over some distances.
WAN (Wide Area Network) is a computer network that covers a larger geographical area covering long distances. “Generally, it’s safe to think of a WAN as multiple, disbursed LANs connected together.” CompTiaA+ study guide (2017)
MAN (Metropolitan Area Network) is a network with that is between a LAN and a WAN. It mostly covers the area inside a city or small town.
3) Chapter 6 Coax:
This chapter expanded on some of what was covered in chapter 9 from the networking equipment to the cables and connectors. Coax is something I’m more familiar with because I’ve always had it laying around for in home equipment like vcr/dvd and cable boxes as well as troubleshooting for an ISP. The text states RG 59 and RG6 are the most common types of coax used today but from my experience with an ISP, RG 59 is out dated and usually in older properties . In most cases if there was a constant signal issue and the home is wired with RG59 then it would be recommended that the home be rewired using RG6.
4) Chapter 6 Twisted Pair
CAT1 Category1 is two twisted pairs that can only handle voice. CAT2 is four twisted pairs that handle speeds up to 4Mbps. CAT3 was the original cable for 10BaseT of what CAT5 replaced which handles speeds up to 10Mbps. CAT5 cable is able to transmit data up to 100Mbps speeds, CAT5e (Category 5 enhanced) Ethernet cables are newer than category 5 cables and support faster, data transmission up to 1000Mbps. The CAT6, CAT6a, and CAT7 can handle up to 10Gbps but they are better at resistance to crosstalk or interference.