4A0-M03 Online Practice Questions and Answers

Which of the following statements regarding GTP-C is FALSE?

A. GTP-C is a tunneling protocol.

B. GTP-C runs over UDP/IP.

C. GTP-C is the control plane part of GTP.

D. GTP-C messages carry Attribute Value Pairs (AVPs).

Which of the following MME interfaces uses a protocol OTHER than GTP-C or Diameter?

A. S1-MME

B. S11

C. S6a

D. SLg

Which of the following is a Diameter interface connected to the MME?

A. S1-MME

B. S11

C. Gx

D. SLg

Which of the following statements best defines S-TMSI?

A. A permanent, unique identification of a mobile subscriber in the GSM/UMTS/EPS system.

B. A network that provides mobile communication services to the public.

C. A globally unique temporary mobile identifier used to hide the subscriber's real permanent identity.

D. An identifier assigned by the MME that uniquely identifies a UE within an MME pool.

Which of the following regarding an EPS dedicated bearer is FALSE?

A. It can be a GBR bearer.

B. It can be a non-GBR bearer.

C. MME obtains the dedicated bearer QoS parameters from HSS.

D. MME sends the dedicated bearer QoS parameters to eNodeB.

Which of the following is NOT an EPS session management (ESM) function performed by MME?

A. Support default bearer creation, modification, and deletion

B. Support dedicated bearer creation, modification, and deletion

C. Inform other network elements about subscription data changes in HSS

D. Perform network element selection

Using the exhibit, if APN correction feature is enabled, which APN will be used when the UE attempts to access a service and specifies APN-4?

A. APN-1

B. APN-2

C. APN-3

D. APN-4

E. The procedure will be rejected

Which of the following statements regarding IMEI checking is FALSE?

A. MME requests IMEI from the UE.

B. MME receives the IMEI status from the HSS given the UE's IMEI.

C. The IMEI status can be whitelisted, blacklisted, or greylisted.

D. MME decides whether to reject the Attach procedure from UE based on the IMEI status.

Which of the following is NOT performed by the MME during service request procedure?

A. MME sends paging messages to a list of eNodeBs.

B. MME updates the SGW with current eNodeB information.

C. MME re-establishes S11 bearers for the UE.

D. MME requests eNodeB to establish radio and S1 bearers for the UE.

Which of the following regarding PM is FALSE?

A. PM counters contain system health information on a specific VM.

B. PM counters are stored in XML format.

C. PM counters are collected on a per-interval basis.

D. A PM job is defined to collect PM counters.

Given the exhibit, which component initiated a mobile-terminated location request (MT-LR) procedure for external LCS client?

A. MME

B. GMLC

C. E-SMLC

D. HSS

Which of the following functions is NOT performed by MME when it receives a TAU from a UE?

A. Perform message integrity check

B. Inform HSS of the UE's current location

C. Check if UE requests access to a restricted tracking area

D. Send paging message to a list of SGWs belonging to UE's registered tracking area

Which of the following statements best describes a home PLMN?

A. A network where a UE is currently registered and has a different PLMN ID from the UE's PLMN ID

B. A provisioned network that is shared by multiple operators

C. A network where a UE is currently being served

D. A network where a UE is subscribed

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

If the selected SGW fails, which SGW/PGW will MME select if `gateway selection mode 2' is used?

A. A new SGW, but new PGW selection is not required

B. A new SGW first, then select a new PGW that is topologically closest to the newly selected SGW

C. A new SGW first, then select a new PGW with the best order and preference values

D. The next topologically closest SGW/PGW pair