P3P

P3P 

P3P is a machine readable privacy policies for a web site. It is a W3C standard on how to specify privacy policies for a web site. The standard has both a human readable part to it, as well as a machine readable part. The standard can be found here with errata and other information about it at P3P here.

Currently IE6 will be supporting a feature that reads the machine readable p3p policy of a web site. Depending on the settings in the options dialog, it may disable certain features of the browser, such as the capability of setting cookies, unless there is a p3p file in place, and the file matches the user's preferences. So unless you implement a p3p policy on your web site, some users may have a bad experience visiting your site.

DDoS

DDoS DDoS - (Distributed Denial-of-Service attack)is one kind of DoS which is: an attempt to make a computer resource unavailable to its intended users. Although the means to, motives for, and targets of a DoS attack may vary, it generally consists of the concerted, malevolent efforts of a person or persons to prevent an Internet site or service from functioning efficiently or at all, temporarily or indefinitely.

Main Difference Between DoS and DDoS is, DoS Attack is only performed from a Single Source, where DDoS is Distributed Denial-of-Service Attack, where Target is Single, attack Come from A group of Source which can be in Distributed area even Different Distributed Country World Wide!

Read My Writeup on DoS or DDoS Here

DoS

DoS (Denial-of-Service attack) - DoS (Denial-of-Service attack) is an attempt to make a computer resource unavailable to its intended users. Although the means to, motives for, and targets of a DoS attack may vary, it generally consists of the concerted, malevolent efforts of a person or persons to prevent an Internet site or service from functioning efficiently or at all, temporarily or indefinitely.

You Can Also See DDoS (Distributed Denial-of-Service attack

Read My Writeup on DoS or DDoS Here

QoS

QoS is a general term that incorporates bandwidth, latency, and jitter to describe a network's ability to customize the treatment of specific classes of data. For example, QoS can be used to prioritize video transmissions over Web-browsing traffic. Advanced networks can offer greater control over how data traffic is classified into classes and greater flexibility as to how the treatment of that traffic is differentiated from other traffic.

MPLS

MPLS, Normally Mean "Multiprotocol Label Switching". MPLS is a standards-approved technology for speeding up network traffic flow and making it easier to manage. MPLS involves setting up a specific path for a given sequence of packets, identified by a label put in each packet, thus saving the time needed for a router to look up the address to the next node to forward the packet to. MPLS is called multiprotocol because it works with the Internet Protocol (IP), Asynchronous Transport Mode (ATM), and frame relay network protocols. With reference to the standard model for a network (the Open Systems Interconnection, or OSI model), MPLS allows most packets to be forwarded at the layer 2 (switching) level rather than at the layer 3 (routing) level. In addition to moving traffic faster overall, MPLS makes it easy to manage a network for quality of service (QoS). For these reasons, the technique is expected to be readily adopted as networks begin to carry more and different mixtures of traffic.

VLAN - Virtual LAN

The term VLAN was specified by IEEE 802.1Q; it defines a method of differentiating traffic on a LAN by tagging the Ethernet frames. By extension, VLAN is used to mean the traffic separated by Ethernet frame tagging or similar mechanisms.

LAN - Local Area Networks

LAN - Local Area Networks - A network of interconnected computers that is distinguished by its small geographical size (typically measured in meters), privately owned, High-speed (usually measured in megabits per second), and low error rate (typically 1 bit in a trillion).