Difference Between Lan can Man Wan Hub Switch Router Pop Imap

 Difference between LAN CAN MAN and WAN?

LAN	CAN	MAN	WAN
LAN stands for Local Area Network	CAN stands for Campus Area Network	MAN stands for Metropolitan Area Network	WAN stands for Wide Area Network
Connects computers and workstations in office or home.	Connects two or more LANs within  a campus	Interconnects network in a town or a city.	Connects geographically separated LANs.
Cover a local area of 1 KM.	Cover privately owned campus with an area of 5 to 10 KM.	Cover larger area then LAN but small area than WAN with an area or 2 to 100 KM.	Spans Large geographical area more than 100 KM.
Data transmission rate 10/100/1000 Mbps.	Data transmission rate is variable.	Data transmission rate is variable.	Data transmission rate is from 64Kbps to 150 Mbps.
Cheaper	Expensive then LAN	Expensive than LAN and CAN	Most Expensive
Uses IEEE 802 standard.	–	Uses IEEE 802 standard.	Uses ITU standard.
Networking devices such as repeater, hub and switch are used in LAN	Networking devices such as hub, switch and gateway are used.	Networking devices such as hub, switch, gateway and router are used.	Networking devices such as hub, switch, gateway and router are used.
Less Congestion	More congestion compare LAN	More congestion compare LAN and MAN	Most congestion network compared to LAN, CAN and MAN.

 

Difference between hub, switch and router?

HUB	SWITCH	ROUTER
Works in layer 1 (Physical layer)	Works in Layer 2 (Data Link Layer)	Works in Layer 3 (Network Layer)
Basically, use in Bus Topology	Basically use in Star Topology.	It is used to connect to different networks.
It broadcast data (sending data to all).	Switch is a multicast device.	Routers maintain routing table for data forwarding.
Hubs work only in half duplex mode.	Switches, unlike hubs, support full duplex.	Router supports full duplex.
If more than one device sends out data simultaneously then data collisions happen.	More than one device can send data.	More than one device can send data.
	Switching protocols: PPP, PPTP, SLIP	Routing protocol: IP, IPSec, ICMP, IGMP, OSPF
Hub cannot be configured.	Switch can be configured.	Router can be configured.
Hub is a device which transmits binary bits along networks.	Switch is a device which transmits frames along networks.	Router is a device which transmits data packets along networks.

Difference between POP and IMAP?

POP3	IMAP
POP stands for Post Office Protocol	IMAP stands for Internet Message Access Protocol
POP3 port number is 110 and 995 (SSL)	IMAP port number is 143 and 999 (SSL)
This protocol is not synced with web server	This protocol is always in sync with the web server
To read the mail it needs to be downloaded first.	To read the mail it need not to be downloaded as you can access it online from the web server.
Mails can be accessed only from a single device.	Mails can be accessed from any device as you need to login to the web server.
The user cannot organize mails in the mailbox of the mail server.	The user can organize the emails on the server.
The user cannot create, delete or rename mailboxes on a mail server.	The user can create, delete or rename mailboxes on the mail server.
Any changes you make in the mail client (Outlook, Thunderbird) is not going to replicate to the web server.	Any changes you make in the mail client (Outlook, Thunderbird) it always replicates to the web server.
Mails are download in local PC and can be accessed locally without internet.	Mails are always on the server and it required internet to access them.