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Categories >> Software >> Networking >> Networking AllOther
 
 


 

 
 Networking Protocols interview questions  Networking Protocols Interview Questions (284)
 Networking Administration interview questions  Networking Administration Interview Questions (352)
 Networking Security interview questions  Networking Security Interview Questions (68)
 Networking AllOther interview questions  Networking AllOther Interview Questions (282)
Question
Why data link layer is divided into two layers?
 Question Submitted By :: Networking-AllOther
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
Data link layer iz divided mac layer and LLC layer.
This LLC LAYER is form for NOVELL AND IPX protocol.
For ip protocol we ve SRC ADDRESS and DEST ADDR(for
communication),but wen we uses IPX/NOVELL protocol the
frame include 1 more byte named "don know"(through which
communication happens @ 2nd layer)....(inshort to
communicate wid IP and IPX/NOVELL we form LLC layer.)
 
Is This Answer Correct ?    12 Yes 5 No
Sarwat
 
Answer
# 2
Initially 802.3 doesn't support multiple upper layer protocol
e.g. IP,IPx,AppleTalk etc. But as need arise to support
multiple upper layer protocol, Ethernets L2(Data Link)
broken into Two Parts....<1> LLC <2> MAC
<1> LLC introduced a additional field in ethernet frame to
distinguished between multiple upper layer protocol
802.3 uses S_SAP and D_SAP to identify multiple upper layer
protocol.
 
Is This Answer Correct ?    5 Yes 3 No
Tapul K
 
 
 

 
 
 
Other Networking AllOther Interview Questions
 
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Coaxial Cable?   1
What is the Command Used to Convert a StandAlone PC into Domain Controller?   4
What is meant by DCE and DTE when it comes to Router?   3
why we need MAC address in data link layer? TeleTech 2
what is the advantage and disadvantage of hub Cisco 10
Which one is costly - ethernet of ring networks ? Honeywell 1
What is wide-mouth frog?   3
what is firewall?How it differs from ACLS?   7
Why networks are layered ? What is the advantage of that ? Wipro 2
Give two reasons why PGP compresses messages.   1
what is frame realy   4
 
For more Networking AllOther Interview Questions Click Here 
 
 
 
 
 


   
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