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WorksheetsNokia-Subcontractor 21
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 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
3.
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
4.
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
5.
What is the capacity of one time slot in TRX?
a)
32Kbps
b)
16Kbps
c)
64Kbps
d)
8Kbps
6.
UL CA Stratum Access Category:
a)
Rel8
b)
REl9
c)
Rel10
d)
Rel11
7.
Reference Signal occupies how many resource element is 2 transmit antennas?
a)
24
b)
16
c)
8
d)
32
8.
Iu-B is the interface between
a)
NodeB-NodeB
b)
RNC-SGSN
c)
RNC-RNC
d)
NodeB-RNC
9.
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
10.
How to improved DL Throughput, except
a)
Single Tx – MIMO
b)
MIMO 2x2 -> 2x4
c)
MIMO 2x2 à 4x4
d)
MIMO 2x4 à 4x2
11.
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
12.
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
13.
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
14.
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
15.
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
16.
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
17.
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
18.
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
19.
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
20.
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
21.
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
22.
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
23.
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
24.
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
25.
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
26.
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
27.
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
28.
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
29.
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
30.
What is the typical 4-Way RX diversity gain ?
a)
6dB
b)
3dB
c)
9dB
d)
1dB
31.
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
32.
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
33.
What is approx throughput with supported for 6 module mcRNC configuration ?
a)
2 Gbps
b)
4 Gbps
c)
8 Gbps
d)
6 Gbps
34.
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
35.
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
36.
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
37.
What is the maximum peak rates for HSDPA ?
a)
28 Mbps
b)
84 Mbps
c)
48 Mbps
d)
82 Mbps
38.
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
39.
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
40.
Which Radio Access interface does support within RU30 Release ?
a)
Booth
b)
None of them
c)
CPRI
d)
OBSAI
41.
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
42.
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
43.
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
44.
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
45.
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
46.
What is target user plane latency for eMBB
a)
1 ms
b)
2 ms
c)
3 ms
d)
4 ms
47.
Which statement about "ng-eNB" is BEST Fit
a)
Providing E-UTRA user plane and control plane protocol terminations towards UE , Supports connectivity to 5GC and EPC
b)
Providing E-UTRA user plane and control plane protocol terminations towards UE , Supports connectivity to 5GC only
c)
Providing NR user plane and control plane protocol terminations towards UE , supports connectivity with 5GC only
d)
Providing NR user plane and control plane protocol terminations towards UE , supports connectivity with EPC only
48.
VM (Virtual Machine) gets deployed on
a)
Switch
b)
Controller
c)
Storage
d)
Compute
49.
SDAP belongs to protocol
a)
Layer-1
b)
Layer-2
c)
Layer-3
d)
Application
50.
Where beam recovery function performed
a)
On RRC & LLC
b)
on MAC & LLC
c)
on PHY & MAC
d)
on PHY & LLC
51.
What is Network Slicing
a)
a concept for separation UP & CP
b)
a concept for deployments using NFV
c)
a concept for the RAN architecture to allow the deployment of new services rapidly and efficiently
d)
a concept for running multiple logical networks as virtual Independent business operations on a common physical infrastructure
52.
The PDU Session Establishment Accept message is sent to UE by
a)
UPF
b)
gNB
c)
AMF
d)
SMF
53.
Which of the applications requires Ultra Low Latency?
a)
Immersive 360 Video
b)
Smart electric meters
c)
Industry robotics and automation
d)
Fixed wireless access
54.
Which node hosts the function "Idle State Mobility Handling"?
a)
UPF
b)
gNB or ng-eNB
c)
AMF
d)
SMF
55.
Which of the following are main functions of the AMF?
a)
NAS security and idle State mobility handling
b)
Mobility anchoring and PDU handling
c)
UE IP address allocation and PDU session control
d)
Radio Bearer Control and Dynamic Resources Allocation
56.
With the "option2" NR RAN functional split, which protocol entities are within the CU?
a)
RRC & PDCP
b)
RRC,PDCP & RLC
c)
RRC, PDCP & RLC LO
d)
RRC, PDCP & RLC HI
57.
Which of the following is commonly referred to as the RAP (Radio Access Point)
a)
RAU
b)
RU and RAU
c)
RAC
d)
RU and RAU
58.
Which interface is defined between UE and AMF
a)
N2
b)
N4
c)
N5
d)
N1
59.
Which layer performs segmentation and Reassembly?
a)
MAC
b)
RLC
c)
PDCP
d)
RRC
60.
How many OFDM symbol are supported in a slot ?
a)
4
b)
7
c)
2
d)
14
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