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

How do you configure a Cisco router to route IPX?

0 Answers  

Write an access list line which will deny node 20.0.2.1 to anywhere on your network using DNS via UDP. Don't worry about the other access list lines.

2 Answers  

what is meant by wild card mask and why can't we use in eigrp ?

2 Answers  

Which layer is responsible for routing through an internetwork? A.) Physical B.) Session C.) Network D.) Transport E.) Application F.) Data Link

4 Answers  

Given the IPX address 4a.0002.1111.a999, what is the network ID and what is the node ID? A.) net 4a host 0002.1111.a999 B.) net a999 node 0002.1111 C.) net 0002.1111.a999 node 4a D.) net 0002.1111 node a999

2 Answers  

Identify the command that displays traffic statistics on serial0/1? A.) display interface serial0/1 B.) show interface serial0/1 C.) show seria0/1 stats D.) show interface serial0/1 stats

1 Answers  

LMI operates between the Frame Switch and what other device? A.) CPE device B.) Another Frame Switch C.) X.25 switch D.) Novell File Server

2 Answers  

Choose the following that are benefits to segmenting with router: A.) Flow Control B.) Manageability C.) Multiple Active Paths D.) Explicit packet lifetime control

1 Answers  

Which two statements accurately define IP addressing rules? (Choose two) A. IP multicast addresses start with 240 B. A host Carbon of all 1 a indicates a network broadcast C. The value of zero (0) in the host Carbon means all hosts on the network D. IP addresses are four octets long and contain a network Carbon and a host Carbon

2 Answers  

Which of the following is a valid extended IP access-list? A.) router(config)# access-list 101 permit tcp host 172.16.30.0 any eq 21 log B.) router# access-list 101 permit tcp host 172.16.30.0 any eq 21 log C.) router(config)# acess-list 101 permit any any 172.16.30.0 D.) router(config)# access-list 101 permit ip host 172.16.30.0 any eq 21 log

2 Answers   HCL,

What must be true for two Routers running IGRP to communicate their routes? A.) Same autonomous system number B.) Connected using Ethernet only C.) Use composite metric D)Configured for PPP

3 Answers   Allied Group,

What is the routing metric used by RIP? A.) Route poisoning B.) Split horizon C.) Hop Count D.) TTL

1 Answers