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WorksheetsNokia Subcontractor 20
Total questions: 60
Worksheet time: 3600secs
Name
Class
Date
1.
You are in optimizing 1 new site and 4G Payload suddenly increase and impact to your CSSR KPI, what will you NOT do immediately?
a)
Check if any promo campaign to up the sales
b)
Check your validity of your measurement if any double counting
c)
Payload Increase is good, so make justification for CSSR KPI
d)
Check if any site surrounding site if shutdown
2.
Which statement(s) correctly describe the SBTS site configuration evolution:
1. Cell sets define on sub baseband module level are combined in independent building blocks to build an SBTS configuration
2. LTE and SRAN cell sets can flexibly combined to build target configuration
3. "Cell set" approach is adopted from LTE. requires higher effort on Lte migration from lagecy RAT to SRAN in comparison to the "Profile" approach
4. "Cell set" concept is only applicable to the shared operation SRAN cells
a)
2 and 4
b)
1 and 4
c)
2 and 3
d)
1 and 2
3.
Which of the following mMIMO statements is TRUE for radio pilot overhead?
a)
In TDD, it is independent of the number of spatially multiplexed Ues
b)
In FDD, it depends on number of antennas and the number of spatially multiplexed UEs
c)
In TDD, it depends on number of antenna and the number of spatially multiplexed UEs
d)
In FDD, it is only independent on the number of spatially multiplexed Ues
4.
Which is typical function of an eNodeB
a)
Access Layer Security
b)
Mobility anchoring for inter 3GPP mobility
c)
Mobility anchoring for non-3GPP access systems
d)
Provisioning of IP addresses to UEs
5.
Which Global NPO community contains network planning and optimization guidance material grouped per technology or product?
a)
Services Community
b)
Radio community Wiki
c)
NPO Modular Working Items Wiki
d)
NPO Services Wiki
6.
What tools are available in the Tool Hosting section of the NPO Mobile Radio Community?
a)
RANDim and Atoll
b)
Atoll and Mentum Plannet
c)
Asset and Connect
d)
3DGL and NPM
7.
What statement about Uplink Power control is NOT true
a)
UL power control changes may impact UL RSSI and SINR for PUSCH
b)
UL power control is responsible for setting the power of the PHICH
c)
UE is transparent to the UL power control algorithm
d)
UL power control is important for the correct MSG3 reception
8.
What is the capacity of one time slot in TRX?
a)
32Kbps
b)
16Kbps
c)
64Kbps
d)
8Kbps
9.
What could be the reason for high average ping round-trip time under good radio conditions in an unloaded network?
a)
Uplink periode CQI reporting interval is too long
b)
256 QAM in downlink is disabled causing bandwidth limitation and hence larger ping response scheduling delay
c)
Uplink pro-active schedulling timer value is shorter than the ping transmission interval
d)
Not enough PUCCH Schedulling Request resources to accommodate all RRC connected UEs in the cell
10.
UL CA Stratum Access Category:
a)
Rel8
b)
REl9
c)
Rel10
d)
Rel11
11.
To troubleshoot an ul throughput problem in a live network, a drive test log has been collected with simultaneous TTI trace. In order to find the correct UE in MAC TTI trace, which information is required from the drive test log?
a)
IMSI
b)
M-TMSI
c)
Data Radio Bearer ID
d)
C-RNTI
12.
The usage level of which physical channel defines the admission of CQI1 bearers when Smart admission control is enabled?
a)
PUCCH
b)
PUSCH
c)
PDSCH
d)
PDCCH
13.
Reference Signal occupies how many resource element is 2 transmit antennas?
a)
24
b)
16
c)
8
d)
32
14.
Nokia Single RAN solution is designed to support multiple Radio Access Technologies with common or shared functionalities. Which of the following statements are correct?
1. Single FSMF baseband capacity can be shared between GSM+WCDMA or GSM+LTE but not LTE+WCDMA
2. Common BTS OAM to simply site creation commissioning and configuration process, where IOMS is re-used to handle SRAN operability
3. SRAN solution is compatible with FSME, FSMF, and AirScale system module
4. AirScale System Module can be used as two logical SBTSs in full subrack, or one logial SBTS and one logial LNBTS in full subrack
a)
2 and 4
b)
1 and 4
c)
2 and 3
d)
1 and 2
15.
Iu-B is the interface between
a)
NodeB-NodeB
b)
RNC-SGSN
c)
RNC-RNC
d)
NodeB-RNC
16.
If any troubleshoot eNodeB scheduling. What is the best tool for debugging eNodeB?
a)
Emil
b)
TTI trace analyzer
c)
BTS site manager
d)
NetAct trace viewer
17.
How to improved DL Throughput, except
a)
Single Tx – MIMO
b)
MIMO 2x2 -> 2x4
c)
MIMO 2x2 à 4x4
d)
MIMO 2x4 à 4x2
18.
How are overshooting cells detected?
a)
1. Accounting for any cell with high Antenna
b)
2. Using RSRP scanner result of best servers and search from counter data cells with good RSSI but poor SINR (UL only). Poor HO pairs from counter data
c)
3. By looking for poorly performing cells from counter
d)
1,2,3 True
19.
What does the term of 'connected user' mean for baseband dimensioning purposes?
a)
UEs in RRC Connected mode with DRB established
b)
UEs actively time scheduled
c)
UEs actively scheduled during the same TTI
d)
UEs which communicate with the network but without DRB established
20.
Is it possible to plot throughput with a planning tool capable of only path loss based calculations?
a)
1. No, it is only possible with Monte Carlo simulations
b)
2. Yes, if the tool can calculate path loss and SINR (for static load) and MAPL (from link budget) is available for different throughputs
c)
1 and 3 True
d)
3. No, it is not possible based on only path loss calculations
21.
What is the meaning of the cell capacity results in Nokia Dimensioning tools ?
a)
1. cell capacity recalculated from the system simulation result based on assumptions of many active user
b)
2. it means maximum user data rate
c)
3. it means maximum cell data rate possible
d)
1,2,3 True
22.
Which is the most important and effective method to improve the network performance?
a)
1. Parameter optimization
b)
2. Power and handover optimization
c)
3. Physical RF optimization.
d)
1,2,3 True
23.
Which one of following applications should be used to test Single User Throughput performance?
a)
1. FTP application
b)
2. Video streaming application
c)
3. Web Browsing application
d)
1,2,3 True
24.
which is NOT a concept of DL Carrier aggregation?
a)
FTP data downloading can be sent via both PCell and Scell
b)
VoLTE call is served only via Pcell
c)
Scell activation is done via RRC connection Reconfiguration message
d)
It enhance downlink throughput performance
25.
How are time synchronization problems in the UL Physical Random Access channel (PRACH) solved?
a)
1.By changing PCI on the serving cell
b)
2. By tuning cell individual Offset on the neighboring cell
c)
3. By introducing a guard time
d)
1,2,3 True
26.
What statement related to PDCCH capacity is false?
a)
Feature usage based PDCCH adaption increases the absolute capacity of the PDCCH
b)
PDCCH is always transmitted using QPSK
c)
PDCCH capacity for MIMO 4X2 is lower than for MIMO 2X2
d)
When PDCCH blocking happens the end user's connection is maintained but there is an increased delay in the resource allocation
27.
In case of 4CC DL Carrier Aggregation, the value of RLC PDU Re-transmission Ratio DL KPI of Pcell is influenced by:
a)
the performance of the Pcell only
b)
the performance of the Pcell and the performance of only the last added Scell
c)
the performance of the Component Carriers
d)
the performance of the Scells only
28.
Measurement based Scell selection is done based on which measrument event?
a)
A6
b)
A4
c)
A3
d)
IF
29.
Which of the following options does NOT improve the latency as part of the Radio Network Optimization Procedures?
a)
Enabling/Disabling Proactive Scheduling
b)
Tuning the scheduling request period
c)
Tuning DRX cycle duration
d)
Increasing PUCCH capacity
30.
What happens if the orthogonality between OFDM subcarriers is lost due to effects such as Doppler?
a)
Adjacent Channel Interference
b)
Inter - Subcarrier Interference
c)
Intersymbol interference
d)
Inter Cell Interference
31.
What is the benefit of standalone deployment of NB-IoT?
a)
No new hardware needs to be installed.
b)
No capacity reduction in legacy LTE
c)
No new spectrum needed
d)
No PCI planning required
32.
If uplink closed loop power parameter window (PUSCH) for level and quality is very narrow and requirement is high for both, what kind of problem will be faced when the loading is high and the average cell range is the network is high ?
a)
Uplink throughput close to the eNodeB will suffer the most
b)
Uplink interference will be very high and the cell middle/edge users will not have enough power to reach the CL PC targets
c)
Cell average UL throughput remains good because the parameter settings favors the UEs in good radio conditions
d)
Average cell UL throughput remains good but average UE TX Power will increase significantly
33.
Which sentence is NOT true concerning Cell trace and Subscriber trace?
a)
Cell Trace records all the UEs connected to the cell, whereas Subscriber Trace records only specific UE
b)
Both Cell Trace and Subscriber Trace, indentify UE based upon their IMSI
c)
The Cell Trace, trace activation command is sent to the eNB, whereas the Subscriber Trace, trace activation command is sent to the MME
d)
Cell Trace does not capture the subscriber indentity, whereas Subscriber Trace captures the IMSI
34.
You are in optimizing 4G New Site, but you find that the Packet Loss Rate is high. What will you do first?
a)
Check in hourly basis if packet loss is happen frequently or just a spike
b)
Immediately escalate to transport Engineer to seek support
c)
Check hardware alarm if any baseband module broken
d)
Perform drive test to check the field impact
35.
SSS (Secondary Synchronization Signal) is used to :
a)
Achieve subframe synchronization
b)
Identify the center of the channel bandwidth
c)
Achieve slot and symbol synchronization
d)
Achieve radio frame synchronization
36.
System information Blocks (SIB) are mapped onto the :
a)
Physical Downlink Control Channel
b)
Physical Broadcast Channel
c)
Physical Downlink Shared Channel
d)
Physical Multicast Channel
37.
Which feature can improve the performance of VoLTE retainability after a failed mobility procedure?
a)
TTI Bundling
b)
RLF Triggered Handover
c)
Extended VoLTE talktime
d)
Support of multiple EPS bearers
38.
Which procedure changes the UE state from ECM-IDLE to ECM-CONNECTED?
a)
Service request
b)
Default bearer creation
c)
S1 release
d)
PGW selection
39.
The Orthogonal Sub Channel application in GSM/EDGE can :
a)
Up to double the radio traffic channels for CS voice
b)
none of them
c)
Reduce the paging load up to 70% in both Air and Abis interface
d)
Assign radio channels with sufficient C/I based on real -time measurement
40.
Which one of the options regarding IDD Concept Delay Diversity (DD) with Phase Hopping is False ?
a)
Improves the mobile's receiver performance by modifying the radio
b)
BTS downlink performance is boosted up to 3-5 dB
c)
All TRXs transmissions are delayed and phase turned
d)
BCCH carrier is sent throught 2 transmitters
41.
The Flexi Multiradio BTS RF Module (FXxx) hs three branches which are equipped with :
a)
Dual TRXs and optional Wideband Combiners (WBCs)
b)
Dual TRX Module and Dual Duplexer Module (ERxA)
c)
The Multi Carroer Power Amplifier (MCPA)
d)
Dual Duplexer Modules for IDD
42.
Energy Efficient Coverage solution is offered to customer via :
a)
equipment relocation for better coverage
b)
refarming
c)
equipment cloning in BSS
d)
equipment Life Extender Service
43.
Choose the correct statement regarding ETPSIG in the BSC ?
a)
ETPSIG-c is the control plane interface between alls BCSUs and ETP-T/E and ETPSIG-m is the management plane interface between a GW BCSU and ETP-T/E
b)
ETPSIG-u is the user plane interface between the MCMU and STMU
c)
ETPSIG is the plane interface between the radio and the core network
d)
ETPSIG-w is the window plane that determines the largest TCP receive window that the BSC offers
44.
What is the benefit from the Packet Abis Transport Media Convertion feature ?
a)
Packet Abis Transport Media Conversion feature allows mixing Packet Abis over Ethernet and Packet Abis over TDM interface media between BTS and BSC
b)
Packet Abis Transport Media Conversion feature allows the BTS to detect coongestion at the BCF level and informs the BSC
c)
None of the above
d)
Packet Abis Transport Media Conversion feature support satellite and terrestrial Abis connections by support BCF satellite specific settings
45.
What is the typical 4-Way RX diversity gain ?
a)
6dB
b)
3dB
c)
9dB
d)
1dB
46.
Remote mode of 2G Flexi BTS Site Manager supports :
a)
Connection of the 2G Flexi BTS via wireless LAN, so engineers do not need to access the high poles and towers
b)
connection of the 2G Flexi BTS Site Manager to the BTS remotely via Windows default browser
c)
connection of the 2G Flexi BTS Manager to the BTS via CPRI interface
d)
perform subsequent recommissioning or append commissioning from the 2G Flexi BTS
47.
Intelligent shutdown for Flexi Multiradio BTS
a)
A pure green energy feature
b)
The intelligent shutdown feature is to maintain the BTS site operation for as long as possible by reducing
c)
Just a savety feature so that the engineers who working in the Base Station can shut down the site via Laptop
d)
A feature designed for 3rd party Battery Back Up solutions only to manage better Battery lifetime
48.
What is approx throughput with supported for 6 module mcRNC configuration ?
a)
2 Gbps
b)
4 Gbps
c)
8 Gbps
d)
6 Gbps
49.
What will happen if we disconnect a 2M PCM cable from ET, where BTSs and TRXs area configure and plug it back immediately (less than 1 second disturbance) in GSM/EDGE environtment
a)
All impacted active voice calls will be dropped Immediately
b)
in Case of a mobile terminal call, it stays in conversation mode. Abis LAPD signalling links area working all the time. Radio network is working all the time
c)
Mobile phone need to be power restarted after the PCM failure
d)
The voice call will be handed over to a Base Station immediate neighbor cell defined at BSC
50.
in DTM-Dual Transfer Mode in BSC below feature dependency applies :
a)
Horizon II BTS need to be upgraded with LMU for DFCA support
b)
GPRS, EDGE must be implemented before DTM can be used
c)
Flexi Multiradio SW level of EX5.0 or leter
d)
MultiBCF and Common BCCH
51.
in the feature BSS20847 Automatic commissioning of the Flexi Multiradio BTS GSM/EDGE, below conditions are met :
a)
The BTS configures the Abis allocations of the TRXSIGs, TCHs
b)
The BSC must be able to download Abis mapping to the BTS as Abis mapping
c)
The BTS configures the Abis allocations of the TRXSIGs, TCHs
d)
The BTS must run in "stand alone" mode without any BSC connection before feature activation
52.
What is the maximum peak rates for HSDPA ?
a)
28 Mbps
b)
84 Mbps
c)
48 Mbps
d)
82 Mbps
53.
Which interface is used to make interconnection between mcRNC modules ?
a)
10 Gigabit Ethernet
b)
USB 3.0 interface
c)
1 Gigabit Ethernet
d)
USB 2.0 interface
54.
Which type of media supports a transmission Flexi BTS
a)
HDLC link and IP link
b)
Baseband modem link and dynamic link
c)
Optical infrared link
d)
Radio link and wire link
55.
Which Radio Access interface does support within RU30 Release ?
a)
Booth
b)
None of them
c)
CPRI
d)
OBSAI
56.
What is a successful intra cell handover in Air Interface using 2G technology
a)
BTS cell handover from one Flexi Multiradio BTS to a Flexi Compact BTS
b)
The call is handed over to other channel of a TRX
c)
Intra cell handover it happen in Pico Cells only
d)
There is any intra cell handover, only soft hand over's
57.
What is the MC-PPP layer from Packet Abis over TDM used for ?
a)
None of the above
b)
MC-PPP defines a protocol for backhauling of Integrated Service Digital Network
c)
MC-PPP is used for the classed-aware transport of user plane data, control plane signalling as well as management plane signalling is CS U-Plane, PS U-Plane C-Plane and M-Plane
d)
MC-PPP is a restriction from the ML-PPP layer that does not allow to define more than one instance of the ML-PPP with a distinguished class number
58.
on which Base Stations the BSS101623 Energy Efficient Coverage in RG30 can be implemented ?
a)
Flexi Multiradio, Flexi Multiradio 10 and Flexi Compact
b)
only Flexi Multiradio 10
c)
all Base Stations expect the Motorola Horizon II BTS
d)
Flexi Multiradio, Flexi Multiradio 10, and Metro Site BTS
59.
Does the energy consumption and environmental impact challenge the operators ?
a)
Yes, because the energy consumption and environmental impact are today's critical aspects for coming technologies
b)
No, because the energy consumption and environmental impact are very costly to handle
c)
Yes, but only on few countries and regions are impacted by environtmental and energy local policies. New growing markets are not affected
d)
No, because the energy consumption and environmental impact are for LTE and future technologies and does not have any impact on mature markets
60.
Which is the correct signaling protocol stack from the C-Plane and M-Plane from the Packet Abis over TDM feature ?
a)
Abis, IP, ML/MC-PPP, HDLC, TDM
b)
NBAP, SSCF_UNI, SSCOP, AAL5, ATM
c)
TCP, IP, NSEI, NSVC, TDM
d)
None of the above
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