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Exam : Ericsson ED0-002
Title : Ericsson BTS Competence Exam


1. An ESD wrist strap must always be used when handling or installing _____.
A. a DXU
B. printed circuit boards
C. TRU/dTRU
D. All of the above
Answer: D

2. The abbreviation "TRU" stands for_____.
A. Transmitter Unit
B. Transceiver Unit
C. Transmitting Replaceable Unit
D. None of the above
Answer: B

3. Why should you use the ESD wrist strap when handling RUs?
A. to avoid an electrical shock to you
B. To ensure good contact is made
C. To avoid a static charge, which can damage electronic components
D. Both B and C
Answer: C

4. What common LED indicators are in the CDU, PSU, BFU, and dTRU?
A. RBS Fault
B. Operational
C. Fault
D. B and C
Answer: D

5. The abbreviation "VSWR" stands for___.
A. Variable Signal Wave Radio
B. Voltage Strength Wire Ratio
C. Very Strong Wave Radio
D. Voltage Standing Wave Ratio
Answer: D

6. What type of RU is a fan?
A. MCRU
B. DDMRU
C. Subordinate
D. Passive
Answer: D

7. In OMT, the System View shows:
A. BSC, PCM link, Alarm Inlets, RBS, OMT, ISP, and ESB
B. BTS, PCM link, Alarm Inlets, RBS, OMT, IDB, and ESI
C. BSC, PCM link, Alarm Inlets, RBS, OMT, IDB, and ETS
D. BSC, PCM link, Alarm Inlets, RBS, OMT, IDB, and ESB
Answer: D

8. What could a flashing green LED indicate in an MRU?
A. Fault is localized
B. Wait, activity in progress
C. Battery Power depleted
D. None of the above
Answer: B

9. In OMT, what view shows the RUs installed in the GSM cabinet?
A. System View
B. Radio view
C. MO View
D. Cabinet View
Answer: D

10. Bends to RF cables (coaxial) should be a minimum of ten (10) times the cable diameter.
A. RLSTC:CELL=12002B, STATE=HALTED;
B. RLSTC:SITE=12002,STATE=HALTED;
C. RLSTP:CELL=12002B, HALTED;
D. RLSTP:CELL=12002B, STATE=HALTED;
Answer: A

11. The abbreviation "COD" stands for_____.
A. Command Document
B. Command Description
C. Command On Demand
D. None of the above
Answer: B

12. What is the proper resistance of an ESD wrist strap?
A. 1 ohm (O)
B. 1 Mega ohm (MO)
C. 10 O
D. 1 MO
Answer: B

13. If VSWR supervision is disabled in the IDB, an alarm is sent to the BSC if the level reaches_____.
A. 1.8
B. 2.2
C. 2.8
D. The alarm is not sent to the BSC
Answer: D

14. How many T1s can one DXU-21 support?
A. 1
B. 2
C. 3
D. 4
Answer: D