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Categories >> Software >> Networking >> Networking AllOther
 
 


 

 
 Networking Protocols interview questions  Networking Protocols Interview Questions (283)
 Networking Administration interview questions  Networking Administration Interview Questions (350)
 Networking Security interview questions  Networking Security Interview Questions (67)
 Networking AllOther interview questions  Networking AllOther Interview Questions (282)
Question
Why data link layer is divided into two layers?
 Question Submitted By :: Sharu
I also faced this Question!!     Rank Answer Posted By  
 
  Re: Why data link layer is divided into two layers?
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
 
  Re: Why data link layer is divided into two layers?
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
 
  Question Asked @ Answers
 
What is ARP and RARP? CA 6
Tell an example of bus type network. Honeywell 3
What is the Command Used to Convert a StandAlone PC into Domain Controller?   4
which layer of osi model ensures reliable trasnmission of data   5
How to upagrade antivirus through network ? Virtusa 3
packet switching methods ? KPIT 1
what is difference between fdma and ofdma   1
Can anybody send me pls questions for Windows system administrator?   2
What is the difference between Win xp & win 2003?   1
1).what is forest? 2).what is dns and dhcp port no's? 3).what is file system? 4).what is terminal server?   2
what is firewall? Genpact 9
If we have a firewall in our network then how to connect a VPN server through internet and therefore which port to open in the firewal?   2
 
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