The Transport Service : Service Provided To The Upper Layers
Transport layer resides between the application layer and the network layer. There are basically two types of services provided by the transport layer : ⦁ Connection oriented services ⦁ Connectionless Services
Summary
Transport layer resides between the application layer and the network layer. There are basically two types of services provided by the transport layer : ⦁ Connection oriented services ⦁ Connectionless Services
Things to Remember
Connection oriented service : a session connection is required before any data can be sent
Connectionless Services : session connection is not required before any data sent.
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Subjective Questions
Q1:
Define leukemia.
Type: Short Difficulty: Easy
Q2:
List out the symptoms, diagnosis and treatment of leukemia.
Type: Short Difficulty: Easy
<p><strong>Symptoms</strong></p>
<p>- swollen lymph nodes that usually don't hurt</p>
<p>- fever or night sweats</p>
<p>- frequent infections</p>
<p>- bleeding and brushing easily</p>
<p>- swelling and discomfort</p>
<p>- weight loss for no known reason</p>
<p>- pain in the bones or joints</p>
<p> </p>
<p><strong>Diagnosis</strong></p>
<p>_ physical exam</p>
<p>_ blood test</p>
<p>_ biopsy</p>
<p>_ bone marrow aspiration</p>
<p>_ bone marrow biopsy</p>
<p>_ chest x-ray , etc.</p>
<p> </p>
<p><strong>Treatment</strong></p>
<ol>
<li>Supportive treatment includes the administration of blood,antibiotics, a sedative may also be given to make the child comfortable.</li>
<li>Chemotherapy</li>
<li>Corticosteroid</li>
<li>Methotrexate</li>
<li>L- asparaginase</li>
<li>Cytosar</li>
</ol>
<p> </p>
Q3:
List out the symptoms, diagnosis and treatment of leukemia.
Type: Long Difficulty: Easy
<p><strong>Symptoms</strong></p>
<p>- swollen lymph nodes that usually don't hurt</p>
<p>- fever or night sweats</p>
<p>- frequent infections</p>
<p>- bleeding and brushing easily</p>
<p>- swelling and discomfort</p>
<p>- weight loss for no known reason</p>
<p>- pain in the bones or joints</p>
<p> </p>
<p><strong>Diagnosis</strong></p>
<p>_ physical exam</p>
<p>_ blood test</p>
<p>_ biopsy</p>
<p>_ bone marrow aspiration</p>
<p>_ bone marrow biopsy</p>
<p>_ chest x-ray , etc.</p>
<p> </p>
<p><strong>Treatment</strong></p>
<ol>
<li>Supportive treatment includes the administration of blood,antibiotics, a sedative may also be given to make the child comfortable.</li>
<li>Chemotherapy</li>
<li>Corticosteroid</li>
<li>Methotrexate</li>
<li>L- asparaginase</li>
<li>Cytosar</li>
</ol>
<p> </p>
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The Transport Service : Service Provided To The Upper Layers
Transport Layer Service
The transport layer resides between the application layer and the network layer. It provides the communication services to the application directly. The different services provided by the transport layer are:
â¦Â Connection setup and multiplexing
â¦Â Flow control mechanisms
â¦Â Slow start and congestion control
â¦Â Reliability services
There are basically two types of services provided by the transport layer :
Â
- Connection-oriented Services
- Connectionless Services
Connection Oriented Services
In connection oriented services a session connection is required before any data can be sent. Handshaking is done to setup the end-to-end connection. This system works only in the bidirectional environment. It doesn't work in the unidirectional environment. Due to connection establishment this type of services becomes more reliable. Due to connection establishment the services are slower than connectionless services.
Example : TCP
Connectionless Services
In connectionless services session connection is not required before any data sent. It also doesn't require the connection termination. This type of service is not reliable but faster than the connection oriented services.
Example : UDP
Reference :
- A.S. Tanenbaum, “Computer Networks”, 3rd Edition, Prentice Hall India, 1997.
- W. Stallings, “Data and Computer Communication”, Macmillan Press, 1989.
- Kurose Ross, “Computer Networking: A top-down approach”, 2nd Edition, Pearson Education
- Larry L. Peterson, Bruce S. Davie, “Computer Networks: A Systems Approach”, 3rd Edition, Morgan Kaufmann Publishers
Lesson
Transport Layer
Subject
Computer Engineering
Grade
Engineering
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