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QUESTION 41
Which two Transport protocols can be used for the S6a interface? (Choose two.)
A. SCTP
B. TCP
C. UDP
D. FCP
E. RDP
Answer: AB
QUESTION 42
Which statement describes what occurs during an inter-MME tracking area update procedure?
A. The old MME does the integrity check of the context request by using the old GUTI in the context request message.
B. The SGW change indication is conveyed to the old MME in the context ack message.
C. The SGW change indication is conveyed to the old MME in the context request message.
D. The old MME does the integrity check of the context request by using the PTMSI signature in the context request message.
Answer: B
QUESTION 43
Refer to the exhibit. Which option is the Mobile Network Code and the Mobile Country Code of the serving node?
A. MNC 002 MCC 262
B. MNC 020 MCC 262
C. MNC 012 MCC 262
D. MNC 120 MCC 622
Answer: A
QUESTION 44
Which two APN names are recommended by GSMA IR.88 / IR.92 in the Voice over LTE solution? (Choose two.)
A. Voice
B. Emergency
C. SOS
D. IMS
E. Video
F. SIP
Answer: CD
QUESTION 45
Which option describes how PCRF knows the amount of QoS that is needed for a Voice over LTE call?
A. PCRF obtains the bandwidth information over the Sy interface.
B. PCRF obtains the bandwidth information over the Rx interface from P-CSCF.
C. PCRF obtains bandwidth information from the TAS.
D. PCRF has the all the bandwidth information always hard-coded in its configuration.
Answer: B
QUESTION 46
Which function does the Cisco Serving Gateway perform in a basic EPC network?
A. The SGW is responsible for authentication of the subscribers connecting to EPC network.
B. The SGW is a termination point in the network for Internet access.
C. The SGW forwards data packets from subscribers toward the PDN gateway.
D. The SGW is responsible for assigning the IP address to the subscriber.
Answer: C
QUESTION 47
In the offline charging architecture, which path protocol and registered port number help to transport the CDRs from the CDFs to the CGF over the Ga reference point?
A. UDP src.port and dest.port as 2123
B. UDP src.port random and dest.port as 3386
C. TCP src.port and dest.port as 3386
D. UDP src.port random and dest.port as 2123
Answer: B
QUESTION 48
Which EPS integrity algorithm is mandatory for the UEs?
A. EIA0
B. SNOW 3G
C. AES
D. ZUC
Answer: A
QUESTION 49
You are configuring the Cisco ASR 5000 Serving Gateway. You want to configure a reference point between the eNodeB and the SGW for the user plane and inter-eNodeB path switching during handover.
Which option describes where the interface IP address associates?
A. The address associates to the SGW service.
B. The address associates to the GTPU service.
C. The address associates to the EGTP service.
D. The address associates to the S1U service.
Answer: B
QUESTION 50
Which statement describes what occurs with a UE in an active Voice over LTE call being handed over successfully from the 4G LTE network to the 3G network via enhanced SR- VCC technology?
A. The voice call is interrupted and reconnected during the hand-over.
B. The voice call must be handed over to Voice over HSPA in 3G network.
C. The voice call uses a circuit-switched connection in the 3G network.
D. The voice call is handed back to 4G Voice over LTE when coverage is back.
Answer: C
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