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<blockquote data-quote="sanjeeme" data-source="post: 12095842" data-attributes="member: 86590"><p><span style="font-size: 15px"><span style="color: DarkRed">අපි නැවතත් Transport Layer එකේ වැදගත් කරැණු මතක් කරගමු.</span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"></span></span></p><ul> <li data-xf-list-type="ul"><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna">Transport Layer </span>එකේ <span style="color: Sienna">PDU (Protocol Data Unit)</span> එක <strong><span style="color: Red">SEGMENT</span></strong></span></span></li> <li data-xf-list-type="ul"><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna">Transport Layer</span> එකේ කාර්්යය තමයි තමන්ට පහලින් ඉන්න <span style="color: Sienna"><em>application, presentation, session layers</em></span> වලින් පැමිණෙන <span style="color: Sienna">data</span> ටික <span style="color: Sienna">network</span> එක හරහා යැවීමට සූදානම් කිරීම සහ අදාල <span style="color: Sienna">destination</span> සමග <span style="color: Sienna">logical connection</span> එකක් සාදා ගැනීම</span></span></li> <li data-xf-list-type="ul"> <span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna">Transport Layer</span> එකට පැමිණෙන </span></span><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: DarkRed"><span style="color: Sienna">data</span> යැවීම සදහා එයා <span style="color: Sienna">protocol</span> දෙකක් භාවිතා කරනවා.</span></span></span></li> </ul><p></p><ol> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: DarkRed">TCP (Transmission Control Protocol)</span></span></span></li> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: DarkRed">UDP (User Datagram Protocol)</span></span></span></li> </ol><p></p><p></p><p></p><p></p><p><span style="font-size: 15px"><span style="color: DarkRed">TCP වල වැඩ සහ කිඩ</span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"></span></span></p><p></p><ol> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: Sienna">Connection Oriented - (Three way handshake)<br /> </span></span></li> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: Sienna">Reliable</span></span></li> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna">Flow Control</span> මෙහි වර්ග 3යි. </span></span><span style="font-size: 15px"><span style="color: Sienna">Buffering / </span></span><span style="font-size: 15px"><span style="color: Sienna">Windowing / </span></span><span style="font-size: 15px"><span style="color: Sienna">Congestion Avoidance </span></span></li> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: Sienna">High Overhead</span></span></li> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: Sienna">Sequenced</span></span></li> </ol><p></p><p></p><p><span style="font-size: 15px"><span style="color: DarkRed">UDP වල වැඩ සහ කිඩ</span></span></p><p></p><ol> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: Sienna">Connectionless</span></span></li> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: Sienna">Unreliable</span></span></li> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: Sienna">Low Overhead</span></span></li> <li data-xf-list-type="ol"><span style="font-size: 15px"><span style="color: Sienna">non sequenced</span></span></li> </ol><p></p><p></p><p></p><p></p><p><span style="font-size: 15px"><span style="color: DarkRed">ප්රශ්න තියෙනවනම් අහන්න</span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"> අපි ඊළග </span></span><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed"><span style="color: Sienna">Layer</span> එක පටන් ගනිමු</span></span></span></span></p><p></p><p></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed">හා තව දෙයක් තියෙනවා කියන්න අපි <span style="color: Sienna">CCNA</span> කරනකොට අපිට කෙටි කරන ලද වචන <span style="color: Sienna">(abbreviations)</span> හම්බ වෙනවා. </span></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed"></span></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed"></span></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed"></span></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed">උදාහරණ: <span style="color: Sienna">TCP - transmission control protocol </span>වගේ</span></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed"></span></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed"></span></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed"></span></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed">මේ වචන තේරැමත් එක්ක වෙනම පොඩි<span style="color: Sienna"> note book</span> එකක ලියාගන්න. ඒක </span></span></span></span><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"><span style="color: DarkRed"><span style="color: Sienna">CCNA</span> වලදි විතරක් නෙවෙයි කවදා හරි <span style="color: Sienna">job</span> එකකට යද්දිත් උවමනා වෙයි. ඒ වගේම <span style="color: Sienna">study</span> කරන්නත් පහසු වෙයි.</span></span></span></span><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"></span></span></span></p><p><span style="font-size: 15px"><span style="color: DarkRed"><span style="color: Sienna"></span></span></span></p></blockquote><p></p>
[QUOTE="sanjeeme, post: 12095842, member: 86590"] [SIZE=4][COLOR=DarkRed]අපි නැවතත් Transport Layer එකේ වැදගත් කරැණු මතක් කරගමු. [/COLOR][/SIZE] [LIST] [*][SIZE=4][COLOR=DarkRed][COLOR=Sienna]Transport Layer [/COLOR]එකේ [COLOR=Sienna]PDU (Protocol Data Unit)[/COLOR] එක [B][COLOR=Red]SEGMENT[/COLOR][/B][/COLOR][/SIZE] [*][SIZE=4][COLOR=DarkRed][COLOR=Sienna]Transport Layer[/COLOR] එකේ කාර්්යය තමයි තමන්ට පහලින් ඉන්න [COLOR=Sienna][I]application, presentation, session layers[/I][/COLOR] වලින් පැමිණෙන [COLOR=Sienna]data[/COLOR] ටික [COLOR=Sienna]network[/COLOR] එක හරහා යැවීමට සූදානම් කිරීම සහ අදාල [COLOR=Sienna]destination[/COLOR] සමග [COLOR=Sienna]logical connection[/COLOR] එකක් සාදා ගැනීම[/COLOR][/SIZE] [*][SIZE=4][COLOR=DarkRed] [/COLOR][/SIZE][SIZE=4][COLOR=DarkRed][COLOR=Sienna]Transport Layer[/COLOR] එකට පැමිණෙන [/COLOR][/SIZE][SIZE=4][COLOR=DarkRed][COLOR=DarkRed][COLOR=Sienna]data[/COLOR] යැවීම සදහා එයා [COLOR=Sienna]protocol[/COLOR] දෙකක් භාවිතා කරනවා.[/COLOR][/COLOR][/SIZE] [/LIST] [LIST=1] [*][SIZE=4][COLOR=DarkRed][COLOR=DarkRed]TCP (Transmission Control Protocol)[/COLOR][/COLOR][/SIZE] [*][SIZE=4][COLOR=DarkRed][COLOR=DarkRed]UDP (User Datagram Protocol)[/COLOR][/COLOR][/SIZE] [/LIST] [SIZE=4][COLOR=DarkRed]TCP වල වැඩ සහ කිඩ [/COLOR][/SIZE] [LIST=1] [*][SIZE=4][COLOR=Sienna]Connection Oriented - (Three way handshake) [/COLOR][/SIZE] [*][SIZE=4][COLOR=Sienna]Reliable[/COLOR][/SIZE] [*][SIZE=4][COLOR=DarkRed][COLOR=Sienna]Flow Control[/COLOR] මෙහි වර්ග 3යි. [/COLOR][/SIZE][SIZE=4][COLOR=Sienna]Buffering / [/COLOR][/SIZE][SIZE=4][COLOR=Sienna]Windowing / [/COLOR][/SIZE][SIZE=4][COLOR=Sienna]Congestion Avoidance [/COLOR][/SIZE] [*][SIZE=4][COLOR=Sienna]High Overhead[/COLOR][/SIZE] [*][SIZE=4][COLOR=Sienna]Sequenced[/COLOR][/SIZE] [/LIST] [SIZE=4][COLOR=DarkRed]UDP වල වැඩ සහ කිඩ[/COLOR][/SIZE] [LIST=1] [*][SIZE=4][COLOR=Sienna]Connectionless[/COLOR][/SIZE] [*][SIZE=4][COLOR=Sienna]Unreliable[/COLOR][/SIZE] [*][SIZE=4][COLOR=Sienna]Low Overhead[/COLOR][/SIZE] [*][SIZE=4][COLOR=Sienna]non sequenced[/COLOR][/SIZE] [/LIST] [SIZE=4][COLOR=DarkRed]ප්රශ්න තියෙනවනම් අහන්න[/COLOR][/SIZE] [SIZE=4][COLOR=DarkRed] [/COLOR][/SIZE] [SIZE=4][COLOR=DarkRed] අපි ඊළග [/COLOR][/SIZE][SIZE=4][COLOR=DarkRed][COLOR=Sienna][COLOR=DarkRed][COLOR=Sienna]Layer[/COLOR] එක පටන් ගනිමු[/COLOR][/COLOR][/COLOR][/SIZE] [SIZE=4][COLOR=DarkRed][COLOR=Sienna][COLOR=DarkRed]හා තව දෙයක් තියෙනවා කියන්න අපි [COLOR=Sienna]CCNA[/COLOR] කරනකොට අපිට කෙටි කරන ලද වචන [COLOR=Sienna](abbreviations)[/COLOR] හම්බ වෙනවා. [/COLOR][/COLOR][/COLOR][/SIZE] [SIZE=4][COLOR=DarkRed][COLOR=Sienna][COLOR=DarkRed] [/COLOR][/COLOR][/COLOR][/SIZE] [SIZE=4][COLOR=DarkRed][COLOR=Sienna][COLOR=DarkRed]උදාහරණ: [COLOR=Sienna]TCP - transmission control protocol [/COLOR]වගේ [/COLOR][/COLOR][/COLOR][/SIZE] [SIZE=4][COLOR=DarkRed][COLOR=Sienna][COLOR=DarkRed] [/COLOR][/COLOR][/COLOR][/SIZE] [SIZE=4][COLOR=DarkRed][COLOR=Sienna][COLOR=DarkRed]මේ වචන තේරැමත් එක්ක වෙනම පොඩි[COLOR=Sienna] note book[/COLOR] එකක ලියාගන්න. ඒක [/COLOR][/COLOR][/COLOR][/SIZE][SIZE=4][COLOR=DarkRed][COLOR=Sienna][COLOR=DarkRed][COLOR=Sienna]CCNA[/COLOR] වලදි විතරක් නෙවෙයි කවදා හරි [COLOR=Sienna]job[/COLOR] එකකට යද්දිත් උවමනා වෙයි. ඒ වගේම [COLOR=Sienna]study[/COLOR] කරන්නත් පහසු වෙයි.[/COLOR][/COLOR][/COLOR][/SIZE][SIZE=4][COLOR=DarkRed][COLOR=Sienna] [/COLOR][/COLOR][/SIZE] [/QUOTE]
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