Interested to Buy Any Domain ? << Click Here >> for more details...
What are OSI layers?
- 3 Answers
- 10456 Views
- Sutherland, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / tej
Application
(Layer 7)
This layer supports application and end-user processes.
Communication partners are identified, quality of service is
identified, user authentication and privacy are considered,
and any constraints on data syntax are identified.
Everything at this layer is application-specific. This layer
provides application services for file transfers, e-mail,
and other network software services. Telnet and FTP are
applications that exist entirely in the application level.
Tiered application architectures are part of this layer.
Presentation
(Layer 6)
This layer provides independence from differences in data
representation (e.g., encryption) by translating from
application to network format, and vice versa. The
presentation layer works to transform data into the form
that the application layer can accept. This layer formats
and encrypts data to be sent across a network, providing
freedom from compatibility problems. It is sometimes called
the syntax layer.
Session
(Layer 5)
This layer establishes, manages and terminates connections
between applications. The session layer sets up,
coordinates, and terminates conversations, exchanges, and
dialogues between the applications at each end. It deals
with session and connection coordination.
Transport
(Layer 4)
This layer provides transparent transfer of data between end
systems, or hosts, and is responsible for end-to-end error
recovery and flow control. It ensures complete data transfer.
Network
(Layer 3)
This layer provides switching and routing technologies,
creating logical paths, known as virtual circuits, for
transmitting data from node to node. Routing and forwarding
are functions of this layer, as well as addressing,
internetworking, error handling, congestion control and
packet sequencing.
Data Link
(Layer 2)
At this layer, data packets are encoded and decoded into
bits. It furnishes transmission protocol knowledge and
management and handles errors in the physical layer, flow
control and frame synchronization. The data link layer is
divided into two sub layers: The Media Access Control (MAC)
layer and the Logical Link Control (LLC) layer. The MAC sub
layer controls how a computer on the network gains access to
the data and permission to transmit it. The LLC layer
controls frame synchronization, flow control and error checking.
Physical
(Layer 1)
This layer conveys the bit stream - electrical impulse,
light or radio signal -- through the network at the
electrical and mechanical level. It provides the hardware
means of sending and receiving data on a carrier, including
defining cables, cards and physical aspects. Fast Ethernet,
RS232, and ATM are protocols with physical layer components.
| Is This Answer Correct ? | 18 Yes | 1 No |
Answer / sreenesh
the osi -> open system interface .. there is a trick to
remember its order "Plse Do Not Throw Sweet Piza Away"
remember the first letr of each word..
and the explanation for the osi layer is nicely explained
by TEJ above..
Thanking you
Sreenesh Shashidharan
sreeneshsrn@gmail.com
| Is This Answer Correct ? | 6 Yes | 2 No |
Answer / soumya av
OPEN SYSTEM INTERCONNECTION MODEL...which is consist of 7
layers..they are....
1..phusical layer
2..data link layre
3..network layer
4..transport layer
5..session layer
6..presentation layer
7..application layer
| Is This Answer Correct ? | 3 Yes | 1 No |
What has disappointed you about a job?
What was your reason for leaving?
what did you learn from your last job? which type of the qualities a Team Leader need?
What do you understand by a BPO?
Speak for 2 mins about how smoking is ban in public places?
Why do you want join night Ship ?
0 Answers Aegis, Genpact, Wipro,
3.what would u prefer:love/arranged marriage?why? 4.what would u prefer:success or mental peace?why? 5.what would u prefer:joint/nuclear family?why?
why you want to leave your company .and why cannot you clear the ijp (internal job posting)
Favourite Song that inspired u and explain? Favourite Advt in TV and explain? Is fitness important in day to day life?
0 Answers GE, HSBC, iEnergizer,
Why companies outsource? : bpo
tell me about yourself.
WHEN THEY ASK WHY DID I CHOSEE CALL CENTRE OR WHY DO U WANT TO WORK AT CALL CENTRE
-
Call Centre AllOther (2477)
