This comprehensive guide addresses key FAQs about VoIP, clarifying how it works, its integration capabilities, fundamental needs, and more.
Perfect for beginners or those looking to upgrade their existing VoIP setup, it offers insightful information, helping you make informed decisions and strengthen your communication system to be secure, and adaptable
Q1) Which of the following is not true about VoIP (Voice over Internet Protocol)?
- a) VoIP can significantly reduce communication costs by utilizing internet connectivity instead of traditional telephone lines.
- b) VoIP supports multimedia services such as video calls and text messages alongside voice calls.
- c) VoIP requires exclusive hardware and cannot work on standard computers or smartphones.
- d) VoIP enables users to make and receive calls using a broadband internet connection.
Correct Answer: C) VoIP requires exclusive hardware and cannot work on standard computers or smartphones.
Q2) What is NOT a potential disadvantage of VoIP technology?
- a) Dependence on stable internet connectivity.
- b) Vulnerability to power outages.
- c) Limited support for international calls.
- d) Complexity of setup and configuration.
Correct Answer: c) Limited support for international calls.
Related Reading: Disadvantages of voice calling
Q3) Which of the following is NOT a VoIP deployment model?
- a) On-premises VoIP.
- b) Cloud-based VoIP.
- c) Hybrid VoIP.
- d) Mobile VoIP.
Correct Answer: d) Mobile VoIP.
Q4) Which component is typically not found in a VoIP setup?
- a) VoIP phones or softphones.
- b) VoIP gateway.
- c) PBX (Private Branch Exchange).
- d) Coaxial cables.
Correct Answer: d) Coaxial cables.
Q5) What is NOT a factor to consider when implementing VoIP in an organization?
- a) Bandwidth availability.
- b) Quality of Service (QoS) requirements.
- c) Compatibility with existing phone systems.
- d) Number of physical phone lines required for operation.
Correct Answer: d) Number of physical phone lines required for operation.
Related Reading: VoIP Implementation Requirements: 10 Steps to Setup VoIP
Q6) Which of the following statements about VoIP security is NOT accurate?
- a) VoIP calls are susceptible to eavesdropping without proper encryption.
- b) VoIP networks are immune to cyber-attacks.
- c) Implementing firewalls and encryption can enhance VoIP security.
- d) VoIP systems should be regularly updated to patch security vulnerabilities.
Correct Answer: b) VoIP networks are immune to cyber-attacks.
Q7) Which of the following is NOT a common VoIP protocol?
- a) SIP (Session Initiation Protocol).
- b) H.264.
- c) RTP (Real-time Transport Protocol).
- d) IAX (Inter-Asterisk eXchange).
Correct Answer: b) H.264.
Related Reading: VoIP protocols and standards
Q8) Which of the following is NOT a feature commonly offered by VoIP service providers?
- a) Call recording.
- b) Call waiting.
- c) Fax over IP (FoIP).
- d) Smoke signals integration.
Correct Answer: d) Smoke signals integration.
Q9) Which of the following statements about VoIP regulations is NOT accurate?
- a) VoIP regulations vary by country and region.
- b) VoIP providers are not subject to any regulatory requirements.
- c) VoIP regulations may include requirements for emergency service access and taxation.
- d) VoIP regulations can impact the cost and availability of VoIP services.
Correct Answer: b) VoIP providers are not subject to any regulatory requirements.
Q10) Which of the following is NOT a common VoIP application?
- a) Skype.
- b) WhatsApp.
- c) Telegram.
- d) truecaller.
Correct Answer: d) truecaller.
Q11) What is NOT a factor influencing the call quality of VoIP?
- a) Internet speed and latency.
- b) The brand of the phone used.
- c) Codec efficiency.
- d) Network congestion.
Correct Answer: b) The brand of the phone used.
Q12) What technology does VoIP use to transmit voice calls over the internet?
- A) Bluetooth
- B) Radio Waves
- C) TCP/IP
- D) GSM
Correct Answer: C) TCP/IP
Q13) Which protocol is commonly used by VoIP applications to establish and control multimedia communication sessions?
- A) HTTP
- B) SIP (Session Initiation Protocol)
- C) FTP
- D) SMTP
Correct Answer: B) SIP (Session Initiation Protocol)
Q14) What is a major advantage of VoIP in terms of cost?
- A) Higher long-distance charges
- B) Additional fees for international calls
- C) Lower overall cost for calls, especially international ones, compared to traditional phone systems
- D) Mandatory subscription to expensive data plans
Correct Answer: C) Lower overall cost for calls, especially international ones, compared to traditional phone systems
Q15) what does the term ‘Latency’ refer to in VoIP terminology?
- A) The maximum bandwidth available for a call
- B) The storage capacity for voicemails
- C) The latency from when a voice packet is transmitted to its point of reception
- D) The number of calls that can be made simultaneously
Correct Answer: C) The latency from when a voice packet is transmitted to its point of reception
Q16) How does VoIP handle voice transmission?
- A) Through the transformation of traditional voice signals into digital packets, enabling their transmission over the internet.
- B) Through direct analog transmission like traditional telephony
- C) Utilizing magnetic tape recording
- D) By transmitting voice as continuous laser signals
Correct Answer: A) Through the transformation of traditional voice signals into digital packets, enabling their transmission over the internet.
Q17) Which of the following is a security concern associated with VoIP?
- A) Inability to use the service during power outages
- B) The potential for eavesdropping and data interception over the internet
- C) Superior encryption methods rendering it completely secure
- D) Total immunity to cyber-attacks
Correct Answer: B) The potential for eavesdropping and data interception over the internet
Q18) Can VoIP services integrate with other business systems?
- A) Yes, integration with customer relationship management (CRM) systems, along with various business communication tools, is possible.
- B) No, VoIP operates independently and cannot be integrated with any other system
- C) No, it can only function with telecommunications equipment
Correct Answer: B) Yes, integration with customer relationship management (CRM) systems, along with various business communication tools, is possible.
Q19) What is required to use VoIP at a minimal level?
- A) A dedicated VoIP phone and a proprietary network infrastructure
- B) A high-powered server and specialized software costing thousands of dollars
- C) An internet connection, VoIP software or device, and an audio output/input device
- D) Access to satellite technology
Correct Answer: C) An internet connection, VoIP software or device, and an audio output/input device
Q20) Which of the following enhances the quality of VoIP communication?
- A) Lower bandwidth connection
- B) Prioritizing voice traffic over the network using Quality of Service (QoS) configurations
- C) Using outdated networking equipment
- D) Limiting the call duration
Correct Answer: B) Prioritizing voice traffic over the network using Quality of Service (QoS) configurations
Q21) What feature of VoIP allows users to use their phone number from any device with internet access?
- A) Fixed Mobile Convergence (FMC)
- B) Device Agnostic Numbering
- C) Number Portability
- D) Mobile User Integration
Correct Answer: C) Number Portability
Q22) How does VoIP encryption protect voice data?
- A) By hiding voice packets as regular internet traffic
- B) Through the use of secure VPN tunnels for each call
- C) By converting voice data into unreadable formats during transmission
- D) Encrypting the identity of the callers
Correct Answer: C) By converting voice data into unreadable formats during transmission
Q23) What is the impact of packet loss on VoIP calls?
- A) Improved call quality due to reduced data transmission
- B) Increased security of voice data
- C) Interruptions or degraded quality of the call
- D) More efficient bandwidth usage
Correct Answer: C) Interruptions or degraded quality of the call
Q24) Which of the following is NOT a way to minimize latency in VoIP communications?
- A) Using high-bandwidth internet connections
- B) Increasing the distance between communication devices
- C) Implementing Quality of Service (QoS) rules on the network
- D) Upgrading to a more efficient codec
Correct Answer: B) Increasing the distance between communication devices
Q25) In what way does VoIP support mobility and flexibility for users?
- A) By allowing calls only within a specific geographic location
- B) By requiring physical hardware for connection
- C) Providing the ability to make and receive calls from any location with internet
- D) Limiting usage to office hours
Correct Answer: C) Providing the ability to make and receive calls from any location with internet
Q26) How do Unified Communications (UC) capabilities enhance VoIP systems?
- A) By reducing the variety of communication methods available
- B) By separating data and voice networks
- C) Integrating voice with messaging, video conferencing, and file sharing
- D) Ignoring the need for internet connectivity
Correct Answer: C) Integrating voice with messaging, video conferencing, and file sharing
Related Reading:
Q27) What role does a VoIP gateway play in a VoIP communication system?
- A) It prevents any external communications to secure the network
- B) Converts between VoIP calls and traditional PSTN calls
- C) It compresses voice data to reduce transmission size
- D) Acts as a firewall to protect against cyber threats
Correct Answer: B) Converts between VoIP calls and traditional PSTN calls
Q28) What is an IP-PBX in the context of VoIP?
- A) A protocol for prioritizing Internet traffic
- B) A hardware device for connecting PSTN lines
- C) A software-driven PBX system that effectively coordinates VoIP call management within a business environment.
- D) A public exchange for trading VoIP securities
Correct Answer: C) A software-driven PBX system that effectively coordinates VoIP call management within a business environment
Q29) Why is echo sometimes experienced during VoIP calls?
- A) Due to the superior sound quality of digital signals
- B) Because of time delays in the transmission and processing of digital voice data
- C) Echo is a built-in feature for voice recognition
- D) It signifies a secure connection
Correct Answer: B) Because of time delays in the transmission and processing of digital voice data
Q30) Can VoIP be used in conjunction with traditional telephony devices?
- A) Yes, but only with special adapters known as Analog Telephone Adapters (ATA)
- B) No, VoIP is incompatible with traditional telephony devices
- C) Yes, without any additional equipment required
- D) Only if the telephony devices are from the same manufacturer as the VoIP equipment
Correct Answer: A) Yes, but only with special Analog Telephone Adapters (ATA) adapters.