1. Which of the following is TRUE in case of E-10B?Ans: It has Digital Switching.A. It supports CCITT#7 Signalling C. It supports Remote Switching UnitB. It supports Digital Subscribers D. It has Digital Switching

2. When two exchanges are connected by 2 E1 streams with CCIT#7 signalling, maximum how many simultaneous voice calls are possibleAns: 61A. 60 C. 61B. 62 D. 63

3. What is Maximum Bit rate in Basic Rate ISDN connectionAns: 144 KbpsA. 128 Kbps C. 384 KbpsB. 144 Kbps D. 2048 Kbps

5. Signalling and Speech path are to be same in Ans: Mod R2 SignallingA. E&M Decadic signalling C. CCITT#7 SignallingB. Mod R2 Signalling D. All the above

6. In CDOT MAX XL exchange, which of the following activity is NOT part of “Daily Routine” recommended by CDOT?Ans: Test Of MFC CardA. Formatting Billing Counters C. Traffic AnalysisB. Running Audit D. Test OF MFC Card.

11.Message Transfer Part (MTP) of CCS#7 is a function of following Module in EWSDAns: Common Channel Signalling Network Control (CCNC)A. Common Channel Signalling Network C. Digital line unit (DLU)

Control (CCNC)B. Switching Network (SN) D. None of the above

13.The Programs of APT are stored and execute byAns: APZA. APT C. APSB. APZ D. TSS

24. In Fixed Line Prepaid service, customer has to dialAns: Account & PIN number only at the time Of registration A. Account & PIN number only at the time of C. Account number every time

Of registrationB. PIN number every time D. Both Account & PIN numbers every time

25.Which of the following are duplicated in AXE-10 System?Ans: TSMA. CP C. TSMB. RP D. All of the above

28. In IN, the IP provides enhanced services to Ans: All SSPsA. All SSPs C. SMPB. All SCPs D. None of the above

29.Which of the New Technology switches has NO Space Switching Stage?Ans: OCB-283A. OCB-283 C. 5ESS-2000

B. AXE-10 D. EWSD32. To know the Line Parameters, the command in E-10B is

Ans: ABESELA. TST-TRM D. ABESELB. FSCCR E. None of the abobe

33. As per the Core Synchronisation Plan announced by BSNL 2009, synchronization supply units (SSU) are located at everyAns: SSA Head quartersA. SDCC C. SSA Head quartersB. Circle Headquarters D. SDH Ring

36. What is the recommended Temperature range for EWSD exchange?Ans: 5⁰C to 40⁰CA. 5⁰C to 40⁰C C. 5⁰C to 18⁰CB. 5⁰C to 22⁰C D. 5⁰C to 30⁰C

37. In E-10B how many customers can talk simultaneously in one XEJ16 card?Ans: 8A. 16 C. 4B. 8 D. 12

38. How many types of Cards (PCB) are there in OCB-283?Ans: 55A. 70 C. 60B. 65 D. 55

42. What is the maximum possible Bit rate in GPRsAns: 115 KbpsA. 115 Kbps C. 13 KbpsB. 14.4 Kbps D. 104 Kbps

43. Which of the following can be used to interconnect two LANs that use identical LAN protocols?Ans: All of the aboveA. Bridge C. GatewayB. Router D. All of the above

45. The channels used in forward direction in CDMA are:Ans: Pilot, Sync, Paging & Traffic ChannlsA. Pilot, Sync, & Access Channels C. Pilot, Sync, Paging & Traffic ChannelsB. Pilot, Sync, Traffic & Access Channels D. Pilot, Sync, Paging & Access Channels

48. X.25 interface is designed to work at Ans: All the aboveA. Packet Level C. Physical LevelB. Link Level D. All the abobe

50. The purpose of DNS Server in Internet is Ans: To provide numeric addresses for the domain names givenA. To ensure packets reach destination C. To provide numeric address for the

Domain names givenB. To provide Firewall D. To host the Web Pages

52. E-mail attachment with which of the following extension can be potential virus?Ans: All the aboveA. .EXE C. .COM

B. .BAT D. All the above57. The maximum distance of cable runs for 10base-T Ethernet, as determined by the IEEE is

Ans: 100mA: 100m C. 80mB. 128m D. 270.83m

60 In CDMA WALSH code, which of the following is true?Ans: There are 64 coded of 64 bit lengthA. There are 32 coded of 64 bit length C. There are 64 codes of 32 bit lengthB. There are 64 codes of 64 bit length D. There are 32 coded of 32 bit lenthe

63. What is one of the basic types of noise existing within line-of-sight or tropospheric scatter relay systems?Ans: Inter modulation NoiseA. Solar noise C. Intermodulation Noise.B. Precipitation noise D. All of the above.

64. While setting up a LAN with 20 hosts, which of the following private network IP address blocks are more appropriate to choose?Ans: 192.168.0.0 – 192.168.255.255A. 10.0.0.0 – 10.255.255.255 C. 192.168.0.0 – 192.168.255.255B. 172.16.0.0 – 172.31.255.255 D. 10.1.0.0 – 10.250.250.250

69. In Network co Class B IP addresses, maximum how many Hosts can be connected?Ans: 16384A. 16384 C. 65536B. 32768 D. 131072

72. To make a script executable, the command used in Linux isAns: $ chmod a+xA. $ exec a+x C. $ run a +xB. $ chmod a+x D. $exec a+w

74. Which of the following is TRUE in respect of Prepaid Broadband service in BSNL?Ans: All of the aboveA. No Fixed monthly charges C. A group of prepaid BROADBAND customers

Can share a single DSL connectionB. Customers can use it any where within D. All the abobe

BSNL network77.Which of the following is NOT a valid General Condition for creating a unit in HRMS package?

Ans: It must have posting of at least Two staffA. It must have posting of at least Two staff C. The unit should belong to BSNLB. It must have one and only one supervising D. It must have at least one staff whose

Unit supervisor is posted in its supervising unit78. In GSM, MSISDN consists of

Ans: CC, NDC, & SNA. CC & NDC only C. MCC, MNC, & MSINB. MCC & MNC only D. CC, NDC, & SN

80. In PC, Instructions and data, which are to be immediately executed are stored inAns: CacheA. Hard disk C. CPUB. RAM D. Cache

81. With regard to Exchange Earth, which of the following is FALSE?

Ans: Earth resistance is to be measured once in every yearA. Earth resistance is to be measure once in C. Coiling of earth conductor should be

Year avoidedB. Earth resistance should be less than 0.5Ω D. The earthing conductor should not pass

For electronic exchanges through any metallic conduit82.With regard to maintaining Cable Records, which of the following is irrelevant?

Ans: Route Indicator LocationA. Offset drawings of all the joints C. Route Index diagrams of cablesB. Route Indicator Location D. Pillar face panel drawing showing the

allocation of pairs84.With regard to Fire Safety measures, which of the following is FALSE?

Ans: All the exchanges of 2K or above shall be provided with automatic fire detectionA. For extinguishing Fire in ordinary C. For extinguishing fire in live electrical

Combustible materials (Class B), WATER/ equipment (Class C), CO2/ HALON can beFOAM can be used used

B. For extinguishing Fire in inflammable D. All the exchanges of 2K or above shall beLiquids, gasses etc. (class B) FOAM/CO2/ provided with automatic fire detectionDry powder can be used

87. In VRLA Battery, what is the normally set Voltage of each Cell?Ans: 2.23 VA. 2.23V C. 2.00 VB. 2.12 V D. 2.3 V

93. In case Line Parameters for POT, which of the following is FALSE?Ans: Up to 12 V AC across each wire to earth is permissibleA. Insulation resistance across each wire to C. Upto 12V A across each wire to earth is

Earth should be more than 1 MΩB. Up to 6V DC across each wire to earth is D. All the above

Permissible95. In the conversion of AC to DC by SMPS Power Plant, which of the following is FALSE?

Ans: The output DC Voltage is maintained at 52.5 Volts.A. The input AC voltage is directly rectified C. Stepped down AC is rectified to DC of

High voltage DC desired voltageB. High frequency AC is stepped down to D. The output DC voltage is maintained at

The required level 52.5 Volts96.With regard to good practices of Drop wire erection, which of the following is FALSE?

Ans: The support clamp houses 4 distribution clamps and thus 4 dropwires.A. The support clamp is fixed on the CI C. The support clamp houses 4 distribution

Bracket with U clamp. Clamps and thus 4 drop wires.B. The distribution clamp is attached to the D. At subscriber premises a driver bolt is to

Support clamp hook be fixed to the wall for holding theDistribution clamp

97.Which of the following statement is FALSE?Ans: VRLA batteries do not require any maintenanceA. SMPS Power Plants offer improved PowerC. VRLA batteries do not require any

Factor maintenanceB. SMPS Power Plants offer scope for D. VRLA Batteries should not be connected

Modular expansion to conventional Power Plant

98.Which of the following is NOT Recommended?Ans: For sectionalizing a fault, LM should first go to DP and testA. Adjustable clamps with jumper rings are C. DPs may be provided on both sides of the

To be fixed on the DP roadB. Install 10 pairs DPs instead of 20 Pairs D. For sectionalizing a fault, LM should first go

To DP and test99.With regard to Maintenance checks for Engine Alternator set, which of the following is FALSE?

Ans: Check Engine Oil level and leakage weeklyA. Check fuel level daily C. Check Engine Oil level and leakage WeeklyB. Check fan belt, and its tension Weekly D. Check starting Battery voltage & Terminals

Fortnightly.