Cisco Cisco Certifications 600-210 Questions & Answers

• Question 21:

  Which option describes how a PDN connection context is identified at the PGW?

  A. IMSI and EPS bearer ID

  B. IMSI, EPS bearer ID, and interface type

  C. IMSI, QoS, and EPS bearer ID

  D. MSISDN, QoS, and interface type

  Correct Answer: B

• Question 22:

  In which two ways does SGSN detect and know when GGSN has restarted? (Choose two.)

  A. change in recovery value in echo response

  B. change in recovery value in PDU notification request from GGSN to SGSN

  C. change in recovery value in Update PDP Context Request from GGSN to SGSN

  D. when the sequence number in a response message is different from that of the request message

  E. when the TEID value in response in GTP header is different from that of the request message

  Correct Answer: AC

• Question 23:

  Which two services require a status check on the Cisco ASR 5000 if no Context Request Message is sent from SGSN to MME over the S3 interface? (Choose two.)

  A. EGTP-service

  B. SGSN-service

  C. HSS-peer-service

  D. SGTP-service

  E. SGS-service

  Correct Answer: AB

• Question 24:

  In which three ways can a GTPv2 tunnel in each node of the UMTS/LTE network be identified? (Choose three.)

  A. TEID

  B. IP address

  C. UDP port number

  D. sequence number

  E. negotiated QoS per PDP

  F. negotiated QoS per PDN

  Correct Answer: ABC

• Question 25:

  What layer of the OSI model does the BSSAP+ protocol map to?

  A. Data link layer

  B. Network layer

  C. Transport layer D. Application layer

  Correct Answer: D

• Question 26:

  Which option lists the contents of the flow label in a GTPv0 header?

  A. IMSI and NSAPI

  B. MSISDN and NSAPI

  C. IMEI and NSAPI

  D. IMSI and Transaction Identifier

  E. IMEI and Transaction Identifier

  Correct Answer: A

• Question 27:

  In which three scenarios is a Create Session Request sent to the SGW? (Choose three.)

  A. Gn/Gp SGSN to S4 SGSN routing area update

  B. Gn/Gp SGSN to MME tracking area update procedure

  C. UE requested PDN connectivity

  D. UE triggered service request

  E. ready to STANDBY transition within the network

  F. network triggered service request procedure

  Correct Answer: ABC

• Question 28:

  Which version of GTP supports piggybacking of GTP messages?

  A. GTPv0

  B. Gn-prime

  C. GTPv1

  D. GTPv2

  E. GTPv1-prime

  Correct Answer: D

• Question 29:

  Which option describes the advantage of using L2TP over IPsec versus IPsec only?

  A. L2TP improves performance.

  B. The overhead that is introduced is lower.

  C. L2TP can transport protocols other than IP.

  D. L2TP provides Layer 2 VPN functionality.

  Correct Answer: C

• Question 30:

  Which option describes how IPsec is used for L2TP configuration on GGSN?

  A. IPsec encapsulated data is sent over the L2TP tunnel.

  B. L2TP encapsulated data is sent over the IPsec tunnel.

  C. L2TP references IPsec for forwarding decisions.

  D. IPsec encapsulated data is sent between MS and GGSN, and data between LAC (GGSN) and LNS is sent via L2TP tunnel.

  Correct Answer: B