
WCT_2025
Authored by sumathi arvind
Professional Development
Professional Development
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20 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
OFDM or multi-carrier technology provides resilience against ____________
Tropospheric scattering
Fresnel clearance
Multi path fading
Pathloss
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
which one of the following modulation schemes are supported by the LTE physical
layer?
OQPSK
8PSK
32QAM
64QAM
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In order to counter the high power requirement of OFDM, LTE uses which scheme for the
uplink?
64QAM
OFDMA
SC-FDMA
SOFDMA
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In the LTE physical layer, it is generally true that higher order modulation schemes such as
64QAM require...................
higher transmitted power
greater FEC complexity
higher signal to noise ratio
multiple antennas
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
which of the following LTE protocol stack layers is responsible for mapping logical
channels to transport channels?
PHY
MAC
RLC
PDCP
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
which of the following LTE protocol stack layers is responsible for error correction using
HARQ?
MAC
RLC
PDCP
PHY
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
LTE channels that are defined by the type of information that they carry are referred to as
Transport channels
Physical channels
Logical Channels
Shared channels
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