What is the difference between System administration and Network administration?

Installation of Computers ( Server / Desktop / Laptop ) , Installation of Operating System ( Server / Desktop ) , Configuring users , groups , Policies and Permissions , Installation of soft wares , Connection with DATABASE , Updating , Maintenance , Backup etc..
comes under SYSTEM ADMINISTRATION.
The connection between servers and desktop , Different Sections in an Office, Head office and Branch Office , with Another Organization , Internet , Policies and Permissions etc are under NETWORK ADMINISTRATION.
A network admin may have to handle Routers , Switches , Firewalls , Modems , Leased Line ,3G/4G , broad band , UTP / STP cables , Wireless networking etc.

System administrator works on Active Directory User and Objects and other Servers like server2003, server2008 and server2012, dhcp server, exchange server and ftp server etc..
while the network administrator works on switches, firewall and routers to configure and manage the user, object and links

Network administration:hardware and software that makes up the network, switches and routers.System administration:servers that would be connected to the network, database, email, and web servers

A network administrator usually deals with the switches, hubs, and routers on a network. Sometimes the have also deal with VPN and firewalls. Larger companies will usually split off these duties to a network administrator.A system administrator is usually broader, not so specialized. Although the usually refer to the person that manages the servers. Smaller companies tend to have these types of people.

Systems Administrator varies from lots of different things. Typically you manage all servers/clients on your network. So thinks like server maintenance, OS Imaging, package creation and deployment, group policies, users/groups and LDAP, so on and so forth.

 

Network Admin is typically the person that sets up and maintains all your networking hardware. Such as: switches, controllers, routers, access points, and so forth. Since networking hardware can also run services like firewalls, DHCP, DNS, and so forth, a Network Admin would take control of that aspect as well.

A system administrator mainly focus on local systems and local area networks and optimization fine turning of Desktop server etc.

On the other hand, a network Administrator more focus on Wild area network

Optimization fine turning of Router and switch like Cisco for their wan connectivity

Infact, you can say he is taking care of your connectivity between branch offices which is in different geographical location.

A network administrator usually deals with the switches, hubs, and routers on a network.
Sometimes the have also deal with VPN and firewalls.
A system administrator is usually broader, not so specialized.
Although the usually refer to the person that manages the servers.