Telecommunications – Real-time Systems MCQs 50 min Score: 0 Attempted: 0/50 Subscribe 1. What is the primary requirement of real-time systems in telecommunications? (A) Large storage capacity (B) Low hardware cost (C) High-resolution graphics (D) Timely data transmission 2. Which telecommunication system requires strict real-time constraints? (A) Email service (B) File transfer (C) Voice over IP (VoIP) (D) Data backup 3. In real-time telecom systems, latency mainly affects: (A) Data size (B) Call quality (C) Storage capacity (D) Security 4. Which type of deadline is typical in video streaming services? (A) Soft (B) Firm (C) Hard (D) Optional 5. Which protocol is widely used for real-time voice communication? (A) RTP (B) HTTP (C) FTP (D) SMTP 6. Jitter in telecommunications refers to: (A) Packet loss (B) Bit error (C) Timing variation (D) Signal attenuation 7. Which real-time constraint is most critical for live video conferencing? (A) Bandwidth (B) Latency (C) Storage (D) File size 8. Which switching technique is used in traditional telephone networks? (A) Packet switching (B) Message switching (C) Circuit switching (D) Cell switching 9. Which network component forwards packets based on routing tables? (A) Modem (B) Router (C) Switch (D) Hub 10. Which scheduling algorithm is commonly used in real-time telecom systems? (A) FCFS (B) Round-robin (C) Rate Monotonic (D) Lottery scheduling 11. Which real-time failure in telecom systems causes dropped calls? (A) Memory leak (B) Deadline miss (C) Syntax error (D) File corruption 12. Which technology enables real-time mobile communication? (A) GSM (B) DNS (C) SMTP (D) FTP 13. Which protocol ensures timely delivery but not reliability? (A) TCP (B) FTP (C) HTTP (D) UDP 14. In telecom real-time systems, throughput refers to: (A) Delay variation (B) Number of errors (C) Data processed per unit time (D) Signal strength 15. Which network delay is most harmful to real-time voice traffic? (A) Propagation delay (B) Transmission delay (C) Processing delay (D) Variable delay 16. Which telecom system uses cells of fixed size? (A) Ethernet (B) Frame Relay (C) IP (D) ATM 17. Which real-time property ensures predictable communication behavior? (A) Determinism (B) Portability (C) Scalability (D) Reusability 18. Which device converts analog signals into digital form? (A) Router (B) Switch (C) Repeater (D) Modem 19. Which real-time protocol supports Quality of Service (QoS)? (A) SMTP (B) FTP (C) RSVP (D) SNMP 20. Which telecom service is a hard real-time application? (A) SMS messaging (B) Voice call switching (C) Email (D) Data analytics 21. Packet loss in real-time video leads to: (A) Higher storage (B) Reduced resolution (C) Faster transmission (D) Degraded quality 22. Which multiplexing technique assigns time slots dynamically? (A) FDM (B) WDM (C) TDM (D) CDM 23. Which scheduling metric is critical for packet transmission? (A) Priority (B) Packet size (C) Deadline (D) Address 24. Which network type is designed for real-time mobile communication? (A) LAN (B) Cellular network (C) WAN (D) MAN 25. Which telecommunication feature guarantees bandwidth for real-time traffic? (A) Encryption (B) Quality of Service (C) Compression (D) Error detection 26. Which protocol is used for real-time video streaming? (A) POP3 (B) FTP (C) RTP (D) IMAP 27. Which component amplifies signals over long distances? (A) Router (B) Switch (C) Firewall (D) Repeater 28. Which real-time issue causes echo in voice communication? (A) High throughput (B) Low bandwidth (C) Excessive delay (D) Large packets 29. Which telecom network supports mobility management? (A) Ethernet (B) Token Ring (C) GSM (D) DSL 30. Which real-time constraint is relaxed in soft real-time telecom applications? (A) Accuracy (B) Deadline (C) Timing predictability (D) Response time 31. Which algorithm prioritizes tasks with earliest deadlines? (A) EDF (B) RMS (C) FCFS (D) Round-robin 32. Which device interconnects multiple networks? (A) Hub (B) Router (C) Switch (D) Modem 33. Which delay component depends on packet size? (A) Transmission delay (B) Propagation delay (C) Processing delay (D) Queueing delay 34. Which telecom service tolerates occasional delay? (A) Streaming video (B) Live video conference (C) Emergency calls (D) Air traffic control 35. Which network protocol supports real-time control messages? (A) FTP (B) ICMP (C) SMTP (D) POP3 36. Which real-time metric measures variation in delay? (A) Latency (B) Throughput (C) Jitter (D) Bandwidth 37. Which technology is used in 4G/5G networks? (A) CDMA (B) ISDN (C) ADSL (D) LTE 38. Which telecom real-time system requires the highest reliability? (A) Video streaming (B) Online gaming (C) Emergency communication (D) File sharing 39. Which switching technique is used in IP networks? (A) Packet switching (B) Circuit switching (C) Message switching (D) Cell switching 40. Which real-time protocol is used for session initiation? (A) DNS (B) FTP (C) HTTP (D) SIP 41. Which telecom system uses frequency bands for multiple users? (A) FDM (B) CDM (C) TDM (D) ATM 42. Which real-time requirement ensures minimal packet delay variation? (A) QoS (B) Security (C) Scalability (D) Portability 43. Which network element manages call setup and teardown? (A) Router (B) Call controller (C) Gateway (D) Repeater 44. Which real-time issue results from network congestion? (A) Increased bandwidth (B) Higher latency (C) Reduced storage (D) Lower security 45. Which protocol is used to monitor network performance? (A) SNMP (B) FTP (C) SMTP (D) RTP 46. Which telecom real-time system operates with hard deadlines? (A) Video streaming (B) Web browsing (C) Voice call switching (D) Email 47. Which mechanism reduces delay in packet networks? (A) Buffering (B) Encryption (C) Packet prioritization (D) Compression 48. Which real-time metric measures data transfer capacity? (A) Bandwidth (B) Jitter (C) Latency (D) Delay 49. Which telecom device converts digital signals to optical signals? (A) Optical transceiver (B) Router (C) Modem (D) Switch 50. The main goal of real-time systems in telecommunications is to ensure: (A) Maximum storage (B) Accurate billing (C) Attractive interface (D) Timely and reliable communication Related Posts:Telecommunications Systems MCQsResearch Topics ideas of Networking and TelecommunicationsNetworking and Telecommunications topics for presentationOperating systems (OS), Examples of operating systems, Advantages of operating systemsAdaptive Real-time Systems – Real-time Systems MCQsHard vs Soft Real-time Systems - Real-time Systems MCQs