Which option describes how DNS snooping is used on the Cisco ASR 5000?
A. DNS snooping allows the Cisco ASR 5000 to snoop DNS query packets and compare against known DNS responses. If a match is found, the Cisco ASR 5000 replies to the query itself instead of forwarding the query to the destination DNS server.
B. DNS snooping allows the Cisco ASR 5000 to detect if a DNS response sent back to a subscriber is valid. If the response is invalid, the Cisco ASR 5000 drops the packet.
C. DNS snooping allows the Cisco ASR 5000 to enable set of dynamic IP rules to be installed based on the response to DNS queries sent by a subscriber that matches a configured domain rule definition. Dynamic IP rules are created for these IP entries within the same rule that has the domain name, which applies the same charging action to these dynamic rules.
D. DNS snooping allows the Cisco ASR 5000 to enable set of dynamic domain rules to be installed based on the response to DNS queries sent by a subscriber that matches a configured domain rule definition. Dynamic domain rules are created for the DNS responses within the same rule that has the domain name, which applies the same charging action to these dynamic rules.
What is the standard Subsystem Number for the Gf interface in the UMTS domain?
A. 6
B. 7
C. 8
D. 9
According to RFC 4006, for which two purposes is Diameter Control Credit Application designed? (Choose two.)
A. authentication and authorization of access
B. real-time content charging
C. credit card payment authorization online
D. credit authorization of prepaid users
E. billing for postpaid users
F. IMS core authorization
G. collection of user statistics
When the failure handling mode is configured as Terminate, which behavior is expected on the GGSN when the OCS sends the diameter result code=4012 within the MSCC in CCA-U message?
A. The GGSN retries sending the CCR-U to the secondary OCS if available, and then terminates the PDP.
B. The GGSN terminates the PDP.
C. The GGSN allows the PDP to continue as an offline session, which disables the Gy interface.
D. The GGSN blacklists the rating group listed within the MSCC AVP.
In which two ways is GRE used in GGSN? (Choose two.)
A. to transport the subscriber traffic between MS and GGSN
B. to transport AAA packets between GGSN and the service provider RADIUS server
C. to transport AAA packets between GGSN and the corporate RADIUS server
D. to transport the enterprise subscriber packets to the corporate gateway
E. to transport the enterprise subscriber packets to the Internet
Which MPLS/BGP functionality can the Cisco ASR 5000 GGSN run in a service provider network?
A. provider edge router
B. customer edge router
C. autonomous system border router
D. provider edge and customer edge
E. provider router
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
Which two functions does the SGSN perform? (Choose two.)
A. mobility management
B. charging
C. dynamic IP address allocation to a subscriber
D. dynamic policy control
E. deep packet inspection
Which option is the page response for a PS paging request in 2G access?
A. service request with type "data"
B. service request with type "page response"
C. any uplink LLC PDU from MS/BSC
D. any uplink BSSGP PDU from MS/BSC
E. service request with type "signaling"
