Answer / jitemdera ( cisco systems,us)

why we need OSI Layer

When the computer system come in in world every manufacture
uses there own model to process the data

in this case the computer of one Vendor can not communicate
with another Vendor

So to make it Standard we use OSI Model

Why the OSI model have 7 layer not One this is Bullshit
Question and i guess interviewer want to show hie knowledge

There are several reason let guess if we have only one
layer capable of holding all process of All seven layer

So what algo they will use
is it FIFO or what then think about CPU utilization for a
system ( You have change yours RAM and Processors in each
second)

This is Bullshit question and you have to replay in tcp we
have 5 layer only right

Every layer have there own function and while processing the
data every layer tags there signature on the data and the
process to next layer

as per example if in a bus a driver will do the duty of
Driver ,Ticket checker the Bus will delay like any thing

So is a Bullshit question ...

Answer / adi

for reliable delivery of data

Answer / santosh

* Standardizes the N/W components to allow multiple vendor development & support.
* By breaking into 7 Layers to make learning easier.

Answer / sagar

OSI model has 7 layers.

each layer has its own use , depending on the layers devices
are their say switch for layer 2 router for layer 3 , hence
depending on the issue the troubleshooting can be made easily

Answer / santhoshreddy katam

OSI layers having 7 layers because of all protocols handled
by one layer is not efficiently.the category of 7 layers
handled the proocols is very simple.in this we divide the
protocols based on their purpose.for example highlevel
protocols are included in appliction layer and tcp,udp in
ranspor layer.

Answer / samyak

I will ease our configuration and troubleshooting steps
.Like if telnet is not working then we easily find out the
problem of application layer we don't have to check everything .

Answer / prasad

sorry for my answer, why do you have two organs in the body
why shouldnt you only one hand, ear, eye,leg? just like
this only for efficiency and performance they have 7
layers. please dont mind.

Answer / amit dey

Troubleshooting issues will get very difficult and complex If Only one layer is used bcoz
If all layers are used Isolating the problem is related to which layer becomes easy

Identify the switching method that receives the entire frame then dispatches it? A.) Cut-through B.) Receive and forward C.) Store and forward D.) Fast forward

1 Answers  

Select the correct statements about PPP and SLIP for WAN communications? A. PPP uses its Network Control Programs (NCPs) component to encapsulate multiple protocols. B. PPP can only transport TCP/IP C. SLIP can only transport TCP/IP. D. SLIP uses its Network Control Programs (NCPs) component to encapsulate multiple protocols.

1 Answers  

what is the matric of EIGRP protocol?

0 Answers  

what does PPTP use for encryption and authentication?

0 Answers   CCIE,

When the router runs out of buffer space, this is called ________. A. Source Quench B. Redirect C. Information Request D. Low Memory

2 Answers  

When written <cr > what does it mean?

0 Answers  

What is the difference between cross cable and straight cable?

0 Answers  

Which type of LAN segmentation device enables high speed data exchange? A. hub B. bridge C. switch D. repeater

3 Answers   Accenture, TCS,

Identify the 3 key features of the Cisco Discovery Protocol? A.) Off by default B.) Will allow for the discovery of layer 3 addresses on neighbor routers C.) Verifies connectivity D.) Open standard E.) Does not require any layer 3 protocols to be configured

1 Answers  

Which statement should you use to deny FTP access (only) from network 210 93 105 0 to network 223 8 151 0? A. access list 1 deny 210 93 105 0 0 0 0 0 any eq ftp access list 1 permit any B. access list 100 deny tcp 210 93 105 0 0 0 0 255 223 8 151 0 0 0 0 255 eq ftp C. access list 100 deny ip 223 8 151 0 0 0 0 255 any eq ftp access list 100 permit hp any any D. access list 100 deny tcp 210 93 105 0 0 0 0 255 223 8 151 0 0 0 0 255 eq ftp access list 100 permit ip any any

1 Answers  

Identify the number range for IPX SAP filters? A.) 900 - 999 B.) 1000 - 1099 C.) 800 -899 D.) 100 - 199

1 Answers  

The Datalink Layer is broken down into 2 layers, LLC and MAC. The LLC establishes media independence and what else? A.) Provides Windowing. B.) Provides flow control. C.) Provides SAP's (Service Access Points). D.) The Datalink layer does not have sublayers. E.) Provides SAP's (Service Advertising Protocol). F.) RIP Updates.

2 Answers