IP phones at a call centre in Kigali carry voice over UDP rather than TCP. Why is UDP the better choice for live voice?
Les téléphones IP d'un centre d'appels à Kigali transportent la voix sur UDP plutôt que sur TCP. Pourquoi UDP est-il le meilleur choix pour la voix en direct ?
Answers
AUDP encrypts every voice packet automatically, so calls cannot be overheard by othersUDP chiffre automatiquement chaque paquet vocal, de sorte que personne ne peut écouter les appels
BUDP guarantees that every voice packet arrives complete and in orderUDP garantit que chaque paquet vocal arrive complet et dans l'ordre
CIn a live call a resent packet arrives too late, so retransmission only adds delayDans un appel en direct, un paquet renvoyé arrive trop tard : la retransmission ne fait qu'ajouter du retard
DUDP always uses port 443, which every firewall allows through by defaultUDP utilise toujours le port 443, que tous les pare-feu laissent passer par défaut
The answer and explanation are in the full bank.
This question is one of 2,831 in the paid banks. Each comes with the correct answer and the reasoning behind it, not just a mark.
Unlock for 5,000 RWFMIFOTRA exam practicealigned to Practice set: Ports and Protocols·2 marks·Medium
More Networking questions
- A wireless mesh network spans a large warehouse. If one access point fails, data is automatically rerouted through another path. This self-healing nature is characteristic of what topology?
- You are tasked with connecting two office buildings across a city spanning 15 miles. Which network type best fits this deployment?
- A hospital requires dedicated high-speed fiber channels to connect its database servers directly to storage arrays. What network type is being utilized?
- An employee pairs their Bluetooth headphones to their smartphone. What type of network does this pairing establish?
- A university interconnects multiple LANs across its academic buildings using a unified administration domain. This best describes a...
- Your company leases a dedicated MPLS circuit from an ISP to connect headquarters in New York to a branch in Tokyo. What network type is this?
- A system administrator needs to allocate IP addresses for a subnet that requires 14 hosts. Which CIDR notation provides exactly enough addresses without excessive waste?
- An engineer configures a branch router with IP 10.10.10.130/26. What is the broadcast address for this specific subnet?