Circuit Switching Systems And Network MCQs – Chapter 6 DAE 10 min Score: 0 Attempted: 0/10 Subscribe 1. All cost of PSTN are allocated on the basis of per ------ basis. (A) Line (B) Node (C) Call (D) SwitchingShow All Answers 2. Switching units basic types are: (A) 4 (B) 3 (C) 2 (D) 5Show All Answers 3. Subscriber lines are connected at ---------. (A) Line Card (B) Route Switch (C) Concentrator Switch (D) a & bShow All Answers 4. Call between subscribers of different exchanges are routed through … (A) a & b (B) Line Card (C) Concentrator Switch (D) Route SwitchShow All Answers 5. PCM is a technique of ------ (A) Switching (B) Transmission (C) D/A Conversion (D) A/D ConversionShow All Answers 6. PCM frame size is ------- (A) 115 μs (B) 125 μs (C) 120 μs (D) a & bShow All Answers 7. Unit of telephone traffic is ------ (A) Calls/Hour (B) Calls/Minute (C) Erlang (D) PPMShow All Answers 8. Basic rate of ISDN is …….. (A) Copper & Fiber (B) 30B + D (C) Copper (D) 2B + DShow All Answers 9. Delay is introduced in ------------------- (A) Space switching (B) Time switching (C) Frequency (D) WANShow All Answers 10. DSL stands for: (A) Double Space Line (B) Digital Subscriber Line (C) Double Side Line (D) a & bShow All Answers
