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QoS traffic scheduling is a scheduling methodology of network traffic based upon QoS (Quality of Service). Here, the frames or packets are mapped to internal forwarding queues based on its QoS information, which are then services according to a queuing scheme.Typically, multiple queues are present each with different priority levels. The scheduler decides the type of treatment to be given to the traffic in each queue. When traffic is available, the scheduler maps it to the appropriate queue. For example, video and voice traffic are kept is queued with higher priority than background traffic.Notable QoS Traffic Scheduling MethodsWeighted Round Robin ... Read More
Worldwide Interoperability for Microwave Access (WiMAX), is a wireless microwave technology based on the IEEE 802.16 standards. It was originally published in 2001 by WiMAX forum, the version which is now called fixed WiMAX. It is similar to Wi-Fi, though it provides higher data rates up to 1 Gbps even at distances of 30 miles.WiMAX forum defines WiMAX as – A standards-based technology enabling the delivery of last-mile wireless broadband access as an alternative to cable and DSL.Features of WiMAXWiMAX is a coalition of wireless industry based upon IEEE 802.16 standards.It aims for the advancement of broadband wireless access (BWA) ... Read More
IEEE 802.16 is a standard that defines Wireless Interoperability for Microwave Access (WiMAX), a wireless technology that delivers network services to the last mile of broadband access.The IEEE 802.11 standard that lays down the specifications of the wireless local area networks (WLAN) or Wi-Fi, that connects wireless devices within a limited area.The following chart gives a comparison between 802.16 and 802.11 −FeatureIEEE 802.16IEEE 802.11TechnologyDefines WIMAX.Defines WLANs or WiFi.Application AreaLast-mile of broadband wireless access.Limited area forming wireless LANs.Versions of the Standard802.16a, 802.16d, 802.16e, 802.16m etc.802.11a, 11b, 11g, 11n, 11ac, 11ad etc.Domain of UsageIt is used for a wide area mostly outdoors.It ... Read More
Dynamic Frequency Selection (DFS) is a technique used in IEEE 802.11 wireless networks or WiFi that permits devices to dynamically switch the operating frequency of transmission in order to avoid interference with other devices.FeaturesDFS is a legal mandate for all IEEE 802.11 devices which share 5 GHz radio spectrum with radar.DFS was adopted in IEEE 802.11h standard for wireless transmissions. It came up in 2003, when the wireless network started using 5 GHz band that is primarily used by radar systems.The objective of DFS is to prevent co-channel interference of signals between the primary user, i.e. radar systems, and the ... Read More
This class matches all visible characters i.e. alphabets, digits, punctuation marks.Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class VisiblieCharacters { public static void main(String args[]) { //Reading String from user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "[\p{Graph}]"; //Compiling the regular expression Pattern pattern = Pattern.compile(regex); //Retrieving the matcher object Matcher matcher = pattern.matcher(input); ... Read More
Wireless broadband (WiBB) a networking technology designed to impart highspeed Internet and data service through wireless networks. Wireless broadband may be delivered through wireless local area networks (WLANs) or wide area networks (WWANs).Similar to other wireless services, wireless broadband can be either fixed or mobile.Features of WiBBWiBB is similar to wired broadband service since they connect to an internet backbone, with the difference that they use radio waves instead of cables to connect to the last mile of the network.The range of most broadband wireless access (BWA) services varies around 50 km from the transmitting tower.Download speeds provided by some ... Read More
The CSS text-transform property allows us to set text capitalization for an element. It can accept the following values: capitalize, lowercase, uppercase, full-width, full-size-kana and none.SyntaxThe syntax of CSS text-transform property is as follows −Selector { text-transform: /*value*/ }ExampleThe following examples illustrate CSS text-transform property − Live Demo h2 { text-transform: uppercase; } .demo { text-transform: lowercase; } q { text-transform: capitalize; font-style: italic; } WordPress WordPress is open source software you can use to create a beautiful website, blog, or app. 34% of the web uses WordPress, from hobby ... Read More
This class matches punctuation marks. i.e.!"#$%&'()*+, -./:;?@[\]^_`{|}~Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class AlphanumericExample { public static void main(String args[]) { //Reading String from user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "[\p{Punct}]"; //Compiling the regular expression Pattern pattern = Pattern.compile(regex); //Retrieving the matcher object Matcher matcher = pattern.matcher(input); int count = 0; ... Read More
This class matches alphabetic characters both upper case and smaller case.Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main( String args[] ) { //Regular expression to match lower case letters String regex = "^\p{Alpha}+$"; //Getting the input data Scanner sc = new Scanner(System.in); System.out.println("Enter 5 input strings: "); String input[] = new String[5]; for (int i=0; i
To use an image on a webpage, use the tag. The tag allows you to add image source, alt, width, height, etc. The src is to add the image URL. The alt is the alternate text attribute, which is text that is visible when the image fails to load. With HTML, add the image source as another domain URL. For that, add the src attribute as a link to another domain.The following are the attributes:Sr.No.Attribute & Description1altThe alternate text for the image2heightThe height of the image3ismapThe image as a server-side image-map4longdescThe URL to a detailed description of an image5srcThe ... Read More