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Telecom Interview Questions
Questions Answers Views Company eMail

which modulation we use in case of GPRS ?

 3 5689

which slot is reserve for GPRS ?

Airtel,

1 6456

WHAT is about the TRE Alarm ..?

 1763

how does a Metro Hub works ?

 2075

minimum voltage on which the Metro Hub can work ?

 1 3701

what is the meaning of main LED which is RED on front of FIU 19(E) ?

 5 6302

What is the main difference between GSM & CDMA?

 7 10284

What is the difference between Diplexer and Duplexer and what position?

 1 5839

What is the different between CDU C and CDU A ?

 6636

What is the difference between Internet and ISDN ? Is both are same or is there any specific difference ?

 3 9019

What is the frequency range used for Bluetooth in INDIA ?

6 14338

What is VSWR?

TATA,

7 13583

Define Scrambling Code?

SingTel,

1 12785

What is difference between WPA and WPA2? Explain MAC frame format? Explain Random backoff algorithm? EAPOL authhentication? In WLAN what do you mean by syncronization? Explain power save mechanism? Explain fram control? What in NAV ,where it is found? what are career sensing techniques?? waht is different between thorughput and data rate? waht are three types of frame ,explain? explain process of wep? which throughput is maximum tcp or udp? drawback of wep? explain 4 way handshake in wlan? What is PS-Poll and its structure?? difference between Power save and legacy power save?? What is TIM? What is trigger frame? What is ACM bit where it is found? explain key exchanges in all security modes WPA,WPA2,TLS? What is contained in control frame? what are four access categories,which one has more priority? Difference between EAP and EAP-TLS? what is broadcast domain for 10 STAS coneected to router at layer 3? router,hub,switch,snmp? what does four address field signifies?? explain powermanagement? Working of RTS/CTS? Explain hidden node problem? what are different typr of frame spacing? What is cipher?

 2 8511

What kind of internet speed control facilities (exact name) do internet service provider use and is it possible to check internet speed of each individual consumer like speedtest.net does?

 1 3253

Un-Answered Questions { Telecom }

What are the advantages of fdma?

454

What are the modulation techniques used in bluetooth technology?

571

Explain the history of cdma?

434

What is ICMP, ARP, Multicast, Broadcast?

1811

What is packet telephony?

586




Differentiate between ad-hoc and infrastructure topology and also explain with their advantages and disadvantages?

511

What is the random backoff algorithm?

622

What are the IEEE standards for Wi-Fi?

413

What is ifconfig?

1387

What is the data throughput speed of a Bluetooth connection?

609

Explain GSM/CDMA/LTE/IMS architecture?

1541

What is firmware? Why may I want to change it?

1190

Please differentiate between cdma and tdma?

404

What are the types of cohesion?

401

What is wi-fi technology?

496

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