equipment knowledge Fill in the blanks - Level 2 1. _____ boards manages the PDP Context of the MS. Answer: Session Controller 2.
Types of PICs are GGSN ____ and GGSN-U PIC
Answer:C-PIC 3.
1+1 is the Redundancy mechanism on _______ of GGSN
Answer: routine Engine 4. _______ OS runs on E/// GGSN
Answer: Junos 5.
GGSN is a gateway between UMTS PS/GPRS network and _________networks
Answer: External Data
If a packet arrives at the GGSN from a sub-network which allows 4000 octet MTUs, it must be fragmented before the GGSN can pass it over the ____ network. Answer: GPRS 7. The GGSN J20 R1 is a carrier-grade carrier-grade node. It combines redundancy for key ________ with a highly highly stable software software operating system. system. Answer: Hardware Elements 8. What is PIC in GGSN? _____ Answer: Physical Interface Cards 6.
True or False – Level 2 1. The GGSN Services PICs can be configured to work either as a p + 1
redundant cluster or as anon-redundant cluster. The capacity of the node depends on whether or not redundancy is used. False / n+1 2. The GGSN is i s interfaced with an IP-based PDN as opposed to the PSTN in GSM. True True 3. The GGSN analyses and converts the PDP addresses to the IMSI of the respective MT. True True One othe otherr impo importa rtant nt func functi tion on of the the GGSN GGSN is scre screen enin ing, g, whic which h is 4. One basically preventing oversize packets from entering the GPRS network. False / fragmentation Multiple Choices – Level 1 1. GGSN important functions are; (A & C) A. Transport ransport layer layer routing routing prot protocol ocol support support B. Ciph iphering ing C. Data/P Data/Pack acket et Counti Counting ng 2012-06-07
HUAWEI Confidential
Page1, Total2
Ericsson_Packet Switch_GGSN
Security Level:
D. Session Management or Call Control 2. The GGSN J20 R1 provides available hardware redundancy in the following areas; (B,C,D) A. Redundant Routing Machine B. Redundant SSBs C. Optional redundant services PICs (e.g., Encryption Services PIC, Tunnel Services PIC) D. Redundant, load-sharing power supplies Single Choice – Level 1& 3
If a packet arrives at the GGSN from a sub-network which allows 4000 octet MTUs, it must be fragmented before the GGSN can pass it over the ____ network. Answer: GPRS 10. The GGSN J20 R1 is a carrier-grade node. It combines redundancy for key ________ with a highly stable software operating system. Answer: Hardware Elements 11. What is PIC in GGSN? _____ Answer: Physical Interface Cards 9.
