Quiz 8: 4g: Lte/Lte-advanced For Mobile Broadband: Chapter 8 Lte Radio Interface Architecture: Quiz8

30 Questions | By Gdeisat | Last updated: Jan 24, 2015 | Total Attempts: 789

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Quiz 8: 4g: Lte/Lte-advanced For Mobile Broadband: Chapter 8 Lte Radio Interface Architecture: Quiz8

By: Dr. Munther Gdeisat

Questions and Answers

1.

The node in the core network that is responsible of connecting a terminal to the Internet is
- A.
  
  Mobility Management Entity (MME)
- B.
  
  Serving-Gateway (S-GW)
- C.
  
  Packet Data Network Gateway (P-GW)
- D.
  
  Home Subscriber Service (HSS)
2.

The node in the core network that is responsible of connection and release of bearers to a terminal is
- A.
  
  Mobility Management Entity (MME)
- B.
  
  Serving-Gateway (S-GW)
- C.
  
  Packet Data Network Gateway (P-GW)
- D.
  
  Home Subscriber Service (HSS)
3.

The node in the core network that is responsible of collecting of statistics necessary for charging is
- A.
  
  Mobility Management Entity (MME)
- B.
  
  Serving-Gateway (S-GW)
- C.
  
  Packet Data Network Gateway (P-GW)
- D.
  
  Home Subscriber Service (HSS)
4.

The node in the core network that acts as a database and contains subscribers information is
- A.
  
  Mobility Management Entity (MME)
- B.
  
  Serving-Gateway (S-GW)
- C.
  
  Packet Data Network Gateway (P-GW)
- D.
  
  Home Subscriber Service (HSS)
5.

S1 user plane part (S1-u) interface connects eNodeB to
- A.
  
  Other eNodeBs
- B.
  
  Serving Gateway (S-GW)
- C.
  
  Mobility Management Entity (MME)
- D.
  
  Packet Data Network (PDN) Gateway (P-GW)
6.

S1 control plane part (S1-c) interface connects eNodeB to
- A.
  
  Other eNodeBs
- B.
  
  Serving Gateway (S-GW)
- C.
  
  Mobility Management Entity (MME)
- D.
  
  Packet Data Network (PDN) Gateway (P-GW)
7.

X2 interface connects eNodeB to
- A.
  
  Other eNodeBs
- B.
  
  Serving Gateway (S-GW)
- C.
  
  Mobility Management Entity (MME)
- D.
  
  Packet Data Network (PDN) Gateway (P-GW)
8.

The layer in the radio access network that is responsible of IP header compression is
- A.
  
  Physical Layer (PHY)
- B.
  
  Packet data convergence protocol (PDCP)
- C.
  
  Radio-Link Control (RLC)
- D.
  
  Medium Access Control (MAC)
9.

The layer in the radio access network that is responsible of hybrid ARQ retransmission
- A.
  
  Physical Layer (PHY)
- B.
  
  Packet data convergence protocol (PDCP)
- C.
  
  Radio-Link Control (RLC)
- D.
  
  Medium Access Control (MAC)
10.

The layer in the radio access network that is responsible of modulation/ demodulation is
- A.
  
  Physical Layer (PHY)
- B.
  
  Packet data convergence protocol (PDCP)
- C.
  
  Radio-Link Control (RLC)
- D.
  
  Medium Access Control (MAC)
11.

A packet sent from an upper layer is named as
- A.
  
  A Protocol Data Unit (PDU).
- B.
  
  A Service Data Unit (SDU).
12.

The transmitted packet size in RLC can vary according to the transmitted bit rate.
- A.
  
  True
- B.
  
  False
13.

The logical channel used for transmission of user data is
- A.
  
  BCCH
- B.
  
  PCCH
- C.
  
  DTCH
- D.
  
  CCCH
14.

Which layer is responsible for handling of multiple component carrier in the case of carrier aggregation?
- A.
  
  PDCP
- B.
  
  RLC
- C.
  
  MAC
- D.
  
  PHY
15.

A resource block in LTE has
- A.
  
  A duration of 1 ms and a bandwidth of 180 kHz
- B.
  
  A duration of 2 ms and a bandwidth of 5 MHz
16.

Scheduler is part of the ----- layer.
- A.
  
  PDCP
- B.
  
  RLC
- C.
  
  MAC
- D.
  
  PHY
17.

The modulation scheme used in the uplink transmission is determine by the
- A.
  
  ENodeB
- B.
  
  UE
18.

Channel-state reports are used to support
- A.
  
  Uplink channel-dependent scheduling
- B.
  
  Downlink channel-dependent scheduling
19.

Sounding reference signals are used to support
- A.
  
  Uplink channel-dependent scheduling
- B.
  
  Downlink channel-dependent scheduling
20.

Hybrid ARQ is part of the ----- layer.
- A.
  
  PDCP
- B.
  
  RLC
- C.
  
  MAC
- D.
  
  PHY
21.

Soft combining is part of the ----- layer.
- A.
  
  PDCP
- B.
  
  RLC
- C.
  
  MAC
- D.
  
  PHY
22.
- A.
  
  Hybrid ARQ is carried out to transport block 1
- B.
  
  Hybrid ARQ is carried out to transport block 2
- C.
  
  Hybrid ARQ is carried out to transport block 3
- D.
  
  Hybrid ARQ is carried out to transport block 4
- E.
  
  Hybrid ARQ is carried out to transport block 5
23.

The protocol layer that provides faster retransmission is
- A.
  
  RLC
- B.
  
  MAC
24.

The protocol layer that is responsible of coding is
- A.
  
  PDCP
- B.
  
  RLC
- C.
  
  MAC
- D.
  
  PHY
25.

Which channel is used for providing the scheduler and the hybrid-ARQ protocol with information about the situation at the terminal?
- A.
  
  DCI
- B.
  
  UCI