24. (2 points) In this question, and the following questions, we consider the MPLS network of figure 2, with the following additional assumptions: In label Prefix Out Out label interface -- 171.69 0 0 10 In label Prefix Out Out label 128.89 0 12 interface -- 171.69 1 80 10 171.69 1 6 12 128.89 0 R6 BE R5 In label Prefix Out interface 171.69 0 R4 X0 D (128.89) R3 0 R1 X A (171.69) R2 Out label In label Prefix Out interface Out label 6 6 171.69 0 -- Table at R6 In label X6 Table at R5 In label X5 Modified table at R4 In label 13 7 Out label Y6 Dest prefix Z6 Out interface T6 Out label Y5 Dest prefix Z5 Out interface T5 Out label Dest prefix Out interface Y4 Z4 T4 Q4 R4 S4