The IT Stuff

Enough space for cabling and access to the side and back of server racks and other equipment, and you must have enough height to accommodate a raised floor as well as the extra air-conditioning and ventilation ducts requirements based on your existing needs and well as three to five years into the future..
Should try to [...]

Simple Network Management Protocol (SNMP) is used in network management systems to monitor network-attached devices for conditions that warrant administrative attention.
A managed device can be any piece of equipment that sits on your data network and is SNMP compliant. Routers, switches, hubs, workstations, and printers are all examples of managed devices.
An agent is typically software [...]

A denial-of-service attack (DoS attack) or distributed denial-of-service attack (DDoS attack) is an attempt to make a computer resource unavailable to its intended users.
Many DoS attacks, such as the Ping of Death and Teardrop attacks, exploit limitations in the TCP/IP protocols

attempts to “flood” a network, thereby preventing legitimate network traffic
attempts to disrupt connections between two [...]

Network topologies are categorized into the following basic types:

bus
ring
star
tree
mesh

Bus Topology:
In Bus networks  a single cable, the backbone functions as a shared communication medium that devices attach or tap into with an interface connector. A device wanting to communicate with another device on the network sends a broadcast message onto the wire [...]

The Transmission Control Protocol (TCP) level of the TCP/IP transport protocol is connection-oriented that is it  means that, before any data can be transmitted, a reliable connection must be obtained and acknowledged.
There are two scenarios where a three-way handshake will take place:

Establishing a connection (an active open)
Terminating a connection (an active close)