Huawei HCIA-5G-Core (H35-650) Certification Sample Questions

01. After selecting a UPF for a new PDU session, the SMF must install packet detection, forwarding, and QoS enforcement rules on that UPF.
Over which reference point, and with which protocol, does the SMF do this?
a) N4, with PFCP sessions between the SMF and the UPF
b) N3, with GTP-U carrying the rules between the gNB and the selected UPF
c) N4, with HTTP/2 service operations
d) N2, with NGAP messages relayed through the gNB

02. A 5G core engineer needs the normative specifications that define the 5GC network functions, the reference points between them, and the system procedures that vendors and operators implement.
Which organization develops these specifications?
a) ITU-R
b) 3GPP
c) IETF
d) GSMA

03. An operator is classifying its planned 5G services against the IMT-2020 usage scenarios so that it can plan the network capabilities each service needs.
Which pairing of service and usage scenario is correct?
a) Stadium 8K video streaming: mMTC
b) Citywide smart meter reporting: eMBB
c) Factory robot control loops: URLLC
d) Vehicle collision warning messages: mMTC

04. An enterprise runs an application on a MEC platform at an edge site, outside the operator's trusted domain. It wants the 5G core to steer that application's traffic to the local data network instead of the central one.
Through which network function does the enterprise submit that request?
a) The NRF, which registers the enterprise application as a network function instance
b) The NSSF, which assigns the enterprise application traffic to an edge network slice
c) The AUSF, which authenticates the enterprise application before the local data network opens
d) The NEF, which exposes core network capabilities to external application functions

05. During registration, the initial AMF is not able to decide by itself whether it can serve the S-NSSAIs in the UE's Requested NSSAI. It queries another network function to obtain the Allowed NSSAI and the AMF set that should serve the UE.
Which network function does the AMF query?
a) NSSF
b) NRF
c) AUSF
d) UDM

06. A PDU session is anchored on a central UPF, with an intermediate UPF placed near the gNB. N4 sessions exist on both UPFs, and the uplink counters on the intermediate UPF rise as the UE sends data. However, the anchor UPF sees no packets for the session, and no traffic leaves toward the data network.
On which reference point should troubleshooting focus?
a) N3, which carries GTP-U between the serving gNB and the intermediate UPF
b) N4, which carries PFCP between the SMF and the anchor UPF of the session
c) N9, which carries GTP-U between the intermediate and anchor UPFs
d) N6, the egress toward the data network

07. An operator deploys a UPF inside a manufacturing campus next to a local server farm, while the central data center keeps the other UPFs. When a campus worker's UE establishes a PDU session for the campus DNN, the network must anchor that session on the campus UPF rather than on one in the central data center.
Which network function makes that anchoring decision?
a) The AMF, while relaying the N1 session request
b) The NSSF, based on the requested S-NSSAI
c) The NRF, from its registered UPF profiles
d) The SMF, during session establishment

08. A UE completes registration and establishes a PDU session, browses briefly, and then stays inactive until the NG-RAN releases its access network connection. The UE is not switched off.
Which pair of states now applies to the UE at the AMF?
a) RM-REGISTERED and CM-IDLE, with no N2 connection for the UE
b) RM-REGISTERED and CM-CONNECTED, with the N2 connection kept open for paging
c) RM-DEREGISTERED and CM-CONNECTED, with the PDU session released by the SMF
d) RM-DEREGISTERED and CM-IDLE, with its context kept only by the UE

09. At the start of a shift, U2020 shows three active alarms on the UDG:
- a critical alarm reporting that an N3 link toward a group of gNBs is down;
- a minor alarm reporting that log storage usage has passed its warning level;
- a warning that a scheduled report export did not complete.
Which alarm should the engineer work on first?
a) The minor log storage alarm on the UDG
b) The critical N3 link-down alarm
c) The warning about the incomplete scheduled report export
d) The alarm raised on the product that the on-call engineer maintains

10. In an approved maintenance window, an engineer changes the slice-selection configuration of the NSSF on the UNC. A configuration backup was taken beforehand, and the change plan includes a rollback procedure. Post-change verification shows that test UEs requesting an existing slice are no longer granted it, and the window has 40 minutes left.
What should the engineer do next?
a) Continue adjusting the NSSF configuration live until the test UEs succeed
b) Restart the AMF instances on the UNC and repeat the test registrations
c) Execute the rollback and verify the slice again
d) Keep the change and log a ticket for the slice team to analyze tomorrow