.B If the Network layer is sending a message from A to D via B, it can be sure that a message sent by the Data Link layer from A to B will always correctly get to B, and a message sent from B to D will always correctly get to D. How then is it possible for the Network layer to be unable to correctly deliver a message from A to D?
.B If the Network layer is sending a message from A to D via B, it can be sure that a message sent by the Data Link layer from A to B will always correctly get to B, and a message sent from B to D will always correctly get to D. How then is it possible for the Network layer to be unable to correctly deliver a message from A to D?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
![.B
If the Network layer is sending a message from
A to D via B, it can be sure that a message sent
by the Data Link layer from A to B will always
correctly get to B, and a message sent from B
to D will always correctly get to D. How then is
it possible for the Network layer to be unable
to correctly deliver a message from A to D?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe4ba74ef-2eaf-4e3a-a2ab-25b8c0e272e1%2Fd3b943b5-1910-40d4-8f34-cb4f71632174%2Ffblp5j.png&w=3840&q=75)
Transcribed Image Text:.B
If the Network layer is sending a message from
A to D via B, it can be sure that a message sent
by the Data Link layer from A to B will always
correctly get to B, and a message sent from B
to D will always correctly get to D. How then is
it possible for the Network layer to be unable
to correctly deliver a message from A to D?
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