LTE Q & A (13/11/2020)

  • Until the UE is paged and bearers are setup which node is responsible to buffer the packets for the mean time in LTE?

A. PGW

B. PCRF

C. SGW

D. Visited PCRF

  • Where is PCEF situated?
  1. OCS
  2. UDR
  3. PDN GW
  4. DRA

  • In LTE Authentication process, Upto Authentication response which kind of security done?
  1. Integrity
  2. Ciphering
  3. Till Authentication response no security got setup
  4. Integrity and Ciphering

  • In RACH T300 timer start at which msg
  1. MSG 2
  2. MSG 3
  3. MSG 4
  4. MSG 5

  • In authentication process, the master key ‘ K ‘ is stored in
  1. MME and UE
  2. UE and SIM
  3. SIM and HSS
  4. UE and HSS



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