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Categories >> Software >> Telecom >> GSM >> WiFi Related
 
 


 

 
 WiFi Protocols interview questions  WiFi Protocols Interview Questions (3)
 WiFi Hardware interview questions  WiFi Hardware Interview Questions (0)
 WiFi Security interview questions  WiFi Security Interview Questions (2)
 GSM interview questions  GSM Interview Questions (12)
 CDMA interview questions  CDMA Interview Questions (8)
 WAP interview questions  WAP Interview Questions (2)
 ISDN interview questions  ISDN Interview Questions (2)
 BlueTooth interview questions  BlueTooth Interview Questions (54)
 WiFi AllOther interview questions  WiFi AllOther Interview Questions (3)
Question
What is the main difference between GSM & CDMA?
 Question Submitted By :: Arun1525
I also faced this Question!!     Rank Answer Posted By  
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 1
gsm is global system for mobile communication. it uses fdma
& tdma.

cdma:- it stands for code division mutiple access.
 
Is This Answer Correct ?    938 Yes 267 No
Ramesh
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 2
gsm is stands for global system for mobile communication. it
use tdma & fdma techniques as access mechanism . in gsm we
devide bandwidth in to time slots for better utilization of
bandwidth.

cdma stands for code devision muliple access it use cdma
techniques as access mechanism . in cdma we allocate a
unique code for every user saparately and allocate bandwidth
to user
 
Is This Answer Correct ?    887 Yes 102 No
Subodh Sharma
 
 
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 3
GSM and CDMA techniques can be explained with an example
suppose there are 10 persons in a room and they want to
communicate with each other .How can they communicate?
First method:One persons speaks at one time that means we
have provided a definite time interval to that person.-GSM
Second method :all the peers speak at a time in a different
language which we call as CDMA
 
Is This Answer Correct ?    604 Yes 169 No
Akshay
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 4
The main difference between GSM and CDMA is: In GSM, the
entire frequency band is not available to the end-user,
while in CDMA the entire frequency band is available to the
end-user. So, the Frequency Re-use factor is 1 in CDMA.

GSM Works as follows:
---------------------
The entire frequency band is divided into chunks and
each such chunk is divided into timeslots and each such
portion is made available to a user.

CDMA Works as follows:
-----------------------
The entire frequency band is available to the user. So,
in order to differentiate, the transmission from each user
is "spread" or coded using an unique code given to
individual user. At the receiving end, the spread
information is decoded.
 
Is This Answer Correct ?    426 Yes 56 No
Sudhindra S Kulkarni
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 5
GSM is a Global Syatem For Mobile Communication.

GSM Operates 3 bands, 1) GSM 900 2) GSM 1800 and 3) GSM
1900.

GSM 900 & GSM 1800 are used in india, But, GSM 1900 used in
USA.

GSM and CDMA techniques can be explained with an example,

suppose there are 10 persons in a room and they want to
communicate with each other .How can they communicate?
First method:One persons speaks at one time that means we
have provided a definite time interval to that person.-GSM
Second method :all the peers speak at a time in a different
language which we call as CDMA

CDMA stands for Code Division Multiple Access and GSM
stands for Global system for Mobile Communication.
In CDMA phones the software is integral with the phone
instrument and in the case of GSM phones it is through the
SIM Card.

CDMA phone instruments are dedicated to the service
provider. GSM phone instruments are portable across service
providers through SIM cards.
 
Is This Answer Correct ?    349 Yes 57 No
Manimaran
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 6
gsm is stand by globle system for mobile communication,gsm
frequency band is 900mhz-1800mhz,this is communicate all
rural area in all time,cdma is same frequency band but can
not available in rural area in all time.
 
Is This Answer Correct ?    93 Yes 223 No
Ramachandran.k
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 7
gsm is global system for mobile communication . here MS is
equipped with sim .
CDMA is a code division multiple access MS is not equipped
with sim .
 
Is This Answer Correct ?    73 Yes 174 No
Vrp
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 8
hi Vrp
what do u mean by MS ???? is this mobile station ?????

Then there is something wrong in ur ansr

Thanks
AKshay

Email: akshay_bali2001@yahoo.co.in
 
Is This Answer Correct ?    58 Yes 107 No
Akshay
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 9
mobile statio(M.S)=mobile equipmemt(M.E)+ SIM (subscriber
identity module)


satya_823@yahoo.co.in
 
Is This Answer Correct ?    92 Yes 61 No
Satya
 
  Re: What is the main difference between GSM & CDMA?
Answer
# 10
GSM: In GSM only 30 or 35 peoples can call at at time in a
singal carrier but In CDMA apprx 70 peoples can call in a
singal carrier at a time.
 
Is This Answer Correct ?    72 Yes 113 No
Gyan Singh
 

 
 
 
Other GSM Interview Questions
 
  Question Asked @ Answers
 
what is Telecom regulatory body of India? Reliance 11
What are the various blocks in GSM architecture? Reliance 23
what is GSM? ZTE 2
we know that the main function of bts is to air interface signaling.but why?????????? Airtel 2
What is the defference between Rx Lev Sub and Rx Lev Full? What you mean by Link Budget?can you explain Lucent 4
What is the main difference between GSM & CDMA? HCL 72
what is GSM? ZTE 41
Anyone any idea about LTE and GSM internetworking. Is it like GSM is used for backbone comm in LTE?? NSN 4
what is the relation between RXLEV [0 to 63] and rxlev [- 110 to -47]? Ericsson 7
Which is the digital modulation used today in telecomn? (whatever his question meant the answer was CDMA) 2) Why is walse code used? then, noncoherent detection, coherent detection, Pn code(y it is used?) etc Reliance 14
What is the difference between FER and BER? GTL 3
1.What is the difference between Diplexer and Duplexer and what position? 2. What is the different between CDU C and CDU A 3. How do you link a T1 from the 1st BTS to 2nd BTS 4. What is the value for TEI 1st T1? 5. What is the SSI? Ericsson 3
 
For more GSM Interview Questions Click Here 
 
 
 
 
 


   
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