SYN-ACK. A connection-oriented session is collection up making use of what is dubbed a three-way handshake. The transmitting host sends a SYN packet, the receiving organize sends a SYNACK, and also the transmitting host replies v the critical ACK packet. The session is now set up.

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Which layer of the OSI model gives a user user interface in the form of an entry allude for programs to access the network infrastructure?
Application. The height layer of the OSI model provides applications access to the solutions that permit network access.
You are linked to a server ~ above the Internet and you click a connect on the server and also receive a time-out message. What layer might be the source of this message?
Application. If the far server is liven or does no respond to your web web browser request, this is an application layer problem.
Which great of the OSI design is responsible for code and also character-set conversion and recognizing data formats?
Data Link, Physical, Network. Bridges, choose switches, space Data link layer devices. Hubs, like repeaters, are Physical great devices. Routers are Network class devices.
Which great of the OSI design is responsible because that converting data right into signals suitable for the transmission medium?
Physical. The physical layer"s task is to transform data right into impulses that are designed for the wired or wireless medium being supplied on the attached segment.
A receiving host has actually failed to receive all the segments the it must acknowledge. What can the organize do to improve the integrity of this interaction session?
Decrease the home window size. A receiving organize can regulate the transmitter by using flow regulate (TCP provides windowing by default). By diminish the home window size, the receiving host deserve to slow under the transmitting hold so the receiving host does not overflow its buffers.
Hub and Repeater. Not that you really want to enlarge a solitary collision domain, however a hub (multiport repeater) will carry out this functionality for you.

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Transport. The transfer layer receives big data streams from the upper layers and breaks these up into smaller pieces referred to as segments.

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