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4G/5G Cellular Networks Quiz

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Questions and Answers

Which organization is responsible for the technical standards of 4G and 5G cellular networks?

3rd Generation Partnership Project (3GPP) (correct)

Internet Engineering Task Force (IETF)

Institute of Electrical and Electronics Engineers (IEEE)

International Telecommunication Union (ITU)

What is the main difference between 4G/5G cellular networks and wired Internet?

Separation of data/control planes

Global cellular network

Use of HTTP and DNS protocols

Different wireless link layer (correct)

What is a key element of the 4G LTE architecture when it comes to user identity?

Network Interface Card (NIC)

SIM card (correct)

IP address

MAC address

What distinguishes the business model of 4G/5G cellular networks from wired Internet?

Users subscribe to a cellular provider Signup and view all the answers

In LTE mobile networks, what is the purpose of 'light sleep' mode?

To check for downstream transmissions after periods of inactivity Signup and view all the answers

What is the major mobility task involved in configuring LTE control-plane elements in 4G networks?

MME configuration of visited forwarding tunnels for mobile Signup and view all the answers

What is the purpose of the S-GW to home P-GW tunnel in 4G networks?

To implement indirect routing during data transmission Signup and view all the answers

What is the role of the target BS in the handover process between BSs in the same cellular network?

Pre-allocates radio time slots and responds with HR ACK to the source BS Signup and view all the answers

What is one of the goals of 5G networks according to ITU recommendations?

Support very high data rates and ultra-reliable low latency communication Signup and view all the answers

What is the role of the Mobility Management Entity (MME) in the 4G LTE architecture?

Coordinating device authentication Signup and view all the answers

What is the primary function of the Serving Gateway (SGW) in the 4G LTE architecture?

Lying on the data path from mobile to/from the Internet Signup and view all the answers

What is the purpose of the Home Subscriber Service (HSS) in the 4G LTE architecture?

Storing information about mobile devices Signup and view all the answers

In the LTE data plane protocol stack, what does the Packet Data Convergence (PDCP) handle?

Header compression, encryption Signup and view all the answers

What is the function of the Packet Data Convergence (PDCP) in the LTE data plane protocol stack?

Fragmentation/reassembly, reliable data transfer Signup and view all the answers

What distinguishes LTE data plane protocol stack from other routers?

Orthogonal frequency division multiplexing Signup and view all the answers

What is the role of the PDN Gateway (P-GW) in 4G LTE architecture?