4A0-M03 Online Practice Questions and Answers

In this exhibit, a new SCTP profile is configured on the MME.

Which interface(s) in the given exhibit can be associated with this profile?

# cmm sctpProfile create –name sctp-profile –rtoMin 100 –rtoMax 500

A. S1-MME only

B. S11 only

C. Both S1-MME and S6a

D. Both S11 and S6a

Which of the following statements regarding MME restoration is FALSE?

A. MME restoration allows rapid restoration of UE sessions when an MME to which the UE is attached fails.

B. MME restoration occurs when S11 link fails.

C. MME restoration triggers the S1 release of connected UEs in priority order.

D. MME restoration can be either network-initiated or UE-initiated.

Which of the following statements regarding the SMC procedure is FALSE?

A. SMC procedure must be completed successfully before AKA procedure starts.

B. MME sends a security mode command message to the UE.

C. UE responds with a security mode complete message.

D. SMC procedure is used to provide NAS signaling security between the UE and the MME.

Which of the following messages are exchanged between the MME and the SGW during the UE-initiated detach procedure?

A. Detach Request / Detach Accept

B. Delete Session Request / Delete Session Response

C. S1 Context Release / S1 Context Release Complete

D. CC-Request / CC-Answer

Given the exhibit, the MME is unable to retrieve authentication vector (AV) from the HSS and the initial UE attach fails.

Which of the following actions is useful for troubleshooting this problem?

A. Verify if the IMSI to HSS mapping list is configured properly.

B. Verify if a GTP profile is associated with the S6a interface.

C. Verify if the TAI value matches between the MME and the HSS.

D. Verify if the DNS server is provisioned to dynamically discover the HSS IP address.

Which logical interface is used to transfer UE information from one MME to another MME during relocation?

A. S10

B. S3

C. S6a

D. S13

What network component(s) is/are shared in the gateway core network (GWCN) sharing architecture model?

A. Only E-UTRAN is shared

B. Only MME is shared

C. E-UTRAN and MME are shared

D. MME and PGW are shared

Which of the following is NOT a characteristic of the home routed roaming architecture?

A. Bearer traffic is routed from the SGW to the PGW over the S5 interface

B. The UE bearers are anchored at the SGW to the VPLMN

C. Subscriber services are obtained through the HPLMN

D. The MME in the VPLMN has an S6a interface to the HSS in the HPLMN

What information does eNodeB use to ensure MME load balancing during MME selection?

A. MME relative capacity value received from each MME in the pool

B. MME capacity value received from the UE attach request message

C. MME capacity value from the UE's subscription data received from the HSS

D. MME relative capacity value calculated by each MME based on the current network load

Which of the following statements regarding SGW selection by the MME is FALSE?

A. SGW selection can occur during initial attach, tracking area update, or handover procedures

B. MME can select an SGW by performing a DNS query on a given TAI FQDN

C. MME can select an SGW based on the overload control information received from each SGW in the SGW pool

D. MME can select an SGW from the SGW pool(s) configured to serve the given TAI