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WorksheetsAssessment NPO Subcontractor - 25
Total questions: 60
Worksheet time: 3600secs
Name
Class
Date
1.
Handover are essenstial procedure for UE moving from cell to cell. What are the correct 4G Handover Event ?
a)
A3—BetterCell, A5—CoverageBased
b)
A4—BetterCell, A5—CoverageBased
c)
A3—Coverage Based, A5—BetterCell
d)
A1—BetterCell, A4—CoverageBased
2.
In 4G Intrafreq handover, in what condition UE will NOT measure or report any neighbor cells RSRP ?
a)
If RSRP of neighbor cell is greater than threshold1, only serving cell is measured
b)
If RSRP of neighbor cell is lower than threshold1, only neighbor cell is measured
c)
If RSRP of serving cell is greater than threshold1, only serving cell is measured
d)
If RSRP of serving cell is lower than threshold1, only serving cell is measured
3.
4G Coverage Based Handover will be only performed under what condition?
a)
If 4G Better cell based handover fail, immediately change to 4G Coverage Based Handover
b)
If call drop happen in cell edge
c)
RSRP at serving cell < threshold3 and RSRP at target < threshold3a
d)
RSRP at serving cell < threshold3 and RSRP at target > threshold3a
4.
what is below is correct condition that cell re-selection will trigger measurement in 4G intra-frequency?
a)
Qrxlevmeas > Qrxlevmin + Sintrasearch
b)
Qrxlevmeas ≤ Qrxlevmin + Sintrasearch
c)
If cannot do inter-frequency handover then do intra-frequency handover
d)
Cell re-selection only happen in 4G Inter-frequency
5.
Which of the following sentences is TRUE about cyclic prefix?
a)
It provides protection against multi--path delay spreadpath delay
b)
Pilot signals can be inserted into the cyclix prefix
c)
It provides signal equalization in the receiver
d)
Reference signals can be instertedinstertedinto the cyclic prefixinto the cyclic prefix
6.
IoT and LTE-M technologies are optimized for improved coverage. Which one of the following techniques enables coverage improvement?
a)
Transmission repetitions
b)
Half-duplex operation
c)
Reduced transport block size
d)
Single antenna transmission
7.
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
8.
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
9.
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)
Payload Increase is good, so make justification for CSSR KPI
c)
Check your validity of your measurement if any double counting
d)
Check if any site surrounding site if shutdown
10.
How can a certain level of LTE service be guaranteed during the planning phase from the RF point of view
a)
Only RSRP must be better than the minimum threshold
b)
Only SINR must be better than the design threshold
c)
RSRP must be better than the design threshold while SINR must be above -3dB
d)
Both RSRP and SINR must be better than the design threshold
11.
The CQI is defined as a table containing 16 entries with modulation and coding schemes (MCSs). Which one is correct for representing the modulation ?
a)
CQI 1-6 = QPSK, CQI 7-10 = 16QAM, CQI 11-15 = 64QAM
b)
CQI 1-5 = QPSK, CQI 6-8 = 16QAM, CQI 9-15 = 64QAM
c)
CQI 1-6 QPSK, CQI 7-11 = 16QAM, CQI 12-15 = 64QAM
d)
CQI 1-6 = QPSK, CQI 7-9 = 16QAM, CQI 10-15 = 64QAM
12.
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
13.
You are in optimizing 4G New Site, but you find that the Packet Loss Rate is high. What will you do first?
a)
Perform drive test to check the field impact
b)
Check in hourly basis if packet loss is happen frequently or just a spike
c)
Immediately escalate to transport Engineer to seek support
d)
Check hardware alarm if any baseband module broken
14.
When throughput test shows low throughput value for TCP, but UDP throughput is high, what could be the cause?
a)
Packet loss somewhere between the core network and eNodeB
b)
Test is done too close to the site
c)
Not enough BTS baseband capacity
d)
Shaping is enabled in the transport path between the core and eNodeB
15.
Which of the following that you will NOT do, if you find 2G TBF Downlink Success Rate is NOT pass the target baseline ?
a)
Downtilt from 4 to 10
b)
Switch GTRX to better quality TRXs
c)
Adjust GTRX number and CDED/CDEF
d)
Reset the GTRX, GENA, EGENA
16.
Which of the following options does NOT improve the latency as part of the Radio Network Optimization Procedures?
a)
Tuning DRX cycle duration
b)
Increasing PUCCH capacity
c)
Tuning the scheduling request period
d)
Enabling/Disabling Proactive Scheduling
17.
Which network element always triggers the user network authentication process
a)
S-GW
b)
P-GW
c)
MME
d)
eNodeB
18.
How does MIMO improve spectral efficiency, network capacity and throughput
a)
By using multiple receive and transmit antennas
b)
By using multiple eNB sites
c)
By using multiple transmit and receive amplifiers
d)
By using multiple uplink and downlink transmitters
19.
Which of this statement about 4G S1 handover is correct?
a)
LTE inter-eNB handover can be executed only with X2 interface
b)
actLTES1Ho = 0 means S1 HO is activated
c)
S1 based handover is only applicable for inter-eNB handover
d)
If there collocation with 2G band, the S1 HO can be performed
20.
What is the impact of changing cellIndOffNeigh ?
a)
Adding offset to serving and neighbor cell RSRP
b)
Adding offset to neighbor cell RSRP
c)
Adding offset to neighbor cell RSRQ
d)
Adding offset to serving cell RSRP
21.
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
22.
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
23.
In 4G Power control, What is the role of Alpha?
a)
alpha = 0 in our network full compensation of path loss
b)
alpha = 1 in our network full eliminate of path loss
c)
alpha = 0 in our network full eliminate of path loss
d)
alpha = 1 in our network full compensation of path loss
24.
Which of the folllowing is NOT correct about the reason of 4G ERAB Drop ?
a)
CQI Report RLF
b)
Srxlev > 0 and Squal > 0
c)
PUSCH RLF
d)
HARQ ACK/NACK RLF
25.
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
26.
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
27.
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
28.
What benefit L3 Connectivity for mcBSC ?
a)
Network evolution support from OMS and BTSMED based mediation to BTS Direct integration
b)
Additional complexity caused by configuring L2 connections towards Site Equipment avoided.
c)
Achieve slot and symbol synchronization
d)
Identify the center of the channel bandwidth
29.
L3 Connectivity for mcBSC SW Requirements ?
a)
–S16.1 step4
b)
–S16.1 step2
c)
–S16.1 step3
d)
–S16.1 step1
30.
Which Radio Access interface does support within RU30 Release ?
a)
Booth
b)
None of them
c)
CPRI
d)
OBSAI
31.
Which statement is INCORRECT about KPI: E-UTRAN E-RAB Drop Ratio, RAN View?
a)
This KPI describes the radio of abnormally released (dropped) E-RABs from RAN point of view
b)
E-RAB releases due to "No Radio Resources Available" initiated by eNB are counted as abnormal releases
c)
RAN point of view means that as abnormal E-RAB drops only those ones Initiated by eNB are counted
d)
In denominator of the formula normal E-RAB releases due to successful HO to eHRPD are not counted
32.
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
33.
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
34.
How to monitor L3 Connectivity for mcBSC ?
a)
–Alarms 2892
b)
–Alarms 2891 and 2893
c)
–Alarms 2890 and 2893
d)
–Alarms 2892 and 2893
35.
Feature dependencies to other features/ other network elements, system level mcBSC
a)
BCN-C
b)
BCN-A
c)
BCN-B
d)
BCN-D
36.
Can you reduce additional CSFB time?
a)
Yes by using Timer Feature
b)
Yes by using RIM Feature
c)
Yes by using Test call
d)
Yes by using user
37.
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
38.
What are the top issues of ERAB drop Rate?
a)
PUCCH Decoding issue, Max UL Re-Transmissions, Max DL Re-Transmissions, T304 expiry
b)
PRB issue, Max UL Re-Transmissions, Max DL Re-Transmissions, T304 expiry
c)
RET issue, Max UL Re-Transmissions, Max DL Re-Transmissions, T304 expiry
d)
PDCCH Decoding issue, Max UL Re-Transmissions, Max DL Re-Transmissions, T304 expiry
39.
What is Inactivity timer?
a)
Before expiry of Inactivity timer UE moves from RRC connected state to RRC Idle state
b)
After expiry of Inactivity timer UE moves from RRC connected state to RRC Idle state
c)
Between expiry of Inactivity timer UE moves from RRC connected state to RRC Idle state
d)
No expiry of Inactivity timer UE moves from RRC connected state to RRC Idle state
40.
Where is IPsec applied?
a)
IPsec is applied one eNB and Security Gateways (SEG)
b)
IPsec is applied between eNB and Security Gateways (SEG)
c)
IPsec is applied between GNB and Security Gateways (SEG)
d)
IPsec is applied one GNB and Security Gateways (SEG)
41.
Which of these applications requires Ultra Low Latency?
a)
Fixed Wireless Access
b)
Immersive 360 Video
c)
Industry Robotics and Automation
d)
Smart Electric Meters
42.
Which of these applications requires Ultra High Reliability?
a)
Vehicle to Vehicle Communication
b)
Wearables
c)
Fixed Wireless Access
d)
Social Networking
43.
Which of these applications will require a large number of IoT devices?
a)
Video Calling
b)
Immersive 360 Video
c)
Vehicle to Vehicle Communication
d)
Industrial Automation
44.
The "Cloud RAN" architecture is split into:
a)
Centralized L3 Processing Units and Distributed Radio Units
b)
Distributed L3 Processing Units and Distributed Radio Units
c)
Distributed L3 Processing Units and Centralized Radio Units
d)
Centralized L3 Processing Units and Centralized Radio Units
45.
Which of the following elements is NOT part of the Telco Cloud ?
a)
VNF
b)
MANO
c)
PNF
d)
VNFM
46.
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
47.
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
48.
Which statement is NOT true related to Interference Rejection Combining (IRC)?
a)
IRC maximizes SINR of the wanted user by applying complex weight to the antenna elements
b)
IRC can cancel interferers which are spatially correlated with the wanted signal
c)
IRC is applicable to PUSCH only
d)
IRC is performed per subcarrier
49.
The Radio Access Cloud is deployed using:
a)
AirFrame HW
b)
AirScale System Module
c)
AirScale MAA
d)
Classical HW
50.
Which layer performs Segmentation and Reassembly?
a)
PDCP
b)
RRC
c)
MAC
d)
RLC
51.
Which protocol handles Per Packet QoS?
a)
PDCP
b)
RRC
c)
SDAP
d)
RRC
52.
What are the benefits of Multi-Connectivity?
a)
It provides Coverage, QoS, Mobility and Throughput enhancements
b)
It enables connectivity to billions of low cost IoT devices
c)
It enables Vehicle-to-Vehicle connectivity and enables autonomous driving
d)
It provides simultaneous connectivity between 2G, 3G, 4G and 5G networks
53.
What is the possible HW scenario when a GPS antenna is installed at GSM/EDGE UltraSite Base Station Site ?
a)
GPS antenna is installed in GSM/EDGE Base Station Sites to send the coordinates to field engineers and find them easy
b)
GPS antenna is installed at an GSM/EDGE UltraSite Base to protect for them protection
c)
GPS signal is used to loacted the GSM/EDGE Base Station in Netact
d)
LMU and BCF are synchronized via GPS signal
54.
What is the BTS Trace Tools in 2G Flexi Multiradio Base Station ?
a)
BTS Trace Tool is built in the 2G Flexi BTS Site Manager application and can be used
b)
BTS Trace Tool is a external Service Test and Measurement Instrument for special cases
c)
BTS Trace Tool is a feature to trace a call and detect protocol faults or compatibility issue
d)
BTS Trace Tool is built in the 2G Flexi BTS Site Manager application and can be used
55.
Which oof the below options DOES NOT APPLY to Network Cloning Service :
a)
Input collection of alarm events, KPI and configuration data
b)
Minimal service disruption
c)
Faster project execution
d)
Offline configuration of a new network with same interface and parameters
56.
What of below option is correct in BTS SW management ?
a)
During BTS software upgrade, the process is optimized by downloading
b)
The download BTS software package is stored in the flash memory of every RRH
c)
The flash memory of the System Module contains 3 complete BTS
d)
For SW update of a BTS a Site visit is always required
57.
In GSM operation only th energy savings on Flexi Multiradio BTS family can reach:
a)
Around 14% lower energy costs
b)
minimun 34% lower energy costs
c)
minimun 44% lower energy costs
d)
minimun 20% lower energy costs
58.
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
59.
What is a Radio suite solution ?
a)
A GSM software suite for efficient Multiradio re-farming and GSM network operations
b)
Capacity expansion in 3G & LTE only, over Triple the HSPA/LTE throughput and capacity via Orthogonal Sub Channel (OSC)
c)
it is a model simulation tool for Network evolution to validate the performance before the deployment
d)
A Network planning and optimization tool for LTE, coverage and throughput capacity calculation
60.
What statement is FALSE about idle mode mobility?
a)
UE receives inter-frequency neighbouring cell information from SIB5
b)
If a UE moves out of coverage without an appropiate target for cell reselection if will trigger a band scan
c)
Measurement trigger for cell reselection is based on priorities where 0 is the highest and 7 is the lowest
d)
It is NOT permitted to allocate equal priorities to different radio access technologies
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