Our team has conducted extensive research to compile a set of VoIP - Voice Over IP MCQs. We encourage you to test your VoIP - Voice Over IP knowledge by answering these 80+ multiple-choice questions provided below.
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A. Triple Decoding Encoding Standard
B. Triple Data Encryption Standard
C. Triple Data Encoding Standard
D. Triple Digital Encryption Service
A. Border Gateway Protocol
B. Border Gateway Police
C. Border Global Position
D. Border Global Protocol
A. Public Old Telephone Service
B. Plain Old Telephone Service
C. Plain Old Telecommunication System
D. Protocols Of Telecommunication System
A. Level 2 Technology Protocol
B. Level 2 Transmission Protocol
C. Layer 2 Transport Protocol
D. Layer 2 Tunneling Protocol
A. Call setup
B. Call maintenance
C. Call termination
D. All of the above
A. Conditional Channel Signaling
B. Combined Channel Signaling
C. Common Channel Signaling
D. Collective Channel Signaling
A. It is used for carrying data
B. It is used for carrying voice
C. It is used for carrying signaling information
D. All of the above
A. 5060
B. 1720
C. 1718
D. 2727
A. Digital Subscription Line
B. Digital Super Link
C. Digital Speed Line
D. Digital Subscriber Line
A. It is a hardware phone especially made for VoIP
B. It is a software that works on a laptop, desktop or a pocket PC
C. It is the traditional phone that we use these days
D. None of the above
A. Dedicated Private Network Signaling Services
B. Digital Public Network Signaling System
C. Dual Primary Network System Signaling
D. Digital Private Network Signaling System
A. Yes
B. No
A. Secure Signal 7
B. Secure System 7
C. Signaling System 7
D. Switch Signal 7
A. Time Division Multiplexing
B. Telephone Domain Management
C. Transmission Division Multiplexing
D. Time Domain Multiplexing
A. Real-time Transport Protocol (RTP)
B. Resource Reservation Protocol (RSVP)
C. Compressed Real-time Transport Protocol (CRTP)
D. Real-time Transport Control Protocol (RTCP)
A. Public Switched Telephone Network
B. Packet Service of Telephone Network
C. Plain Switched Telephone Network
D. Public Subscriber Trunk Network
A. 16 bits
B. 32 bits
C. 48 bits
D. 64 bits
A. SS7
B. PCM
C. ISDN
D. DSL
A. Q.933A
B. DPNSS
C. QSIG
D. SS7
A. T.30
B. T.37
C. T.38
D. All of the above
A. 16
B. 24
C. 30
D. 32
A. Network
B. Data Link
C. Transport
D. Physical
A. Net ID=8 bits & Host ID=24 bits
B. Net ID=16 bits & Host ID=16 bits
C. Net ID=24 bits & Host ID=8 bits
D. None of the above
A. Application
B. Transport
C. Internetwork
D. Physical
A. TDM
B. Pulse dialing
C. DTMF
D. FDM
A. SIP
B. H.264
C. H.323
D. MGCP
A. Speakerphones
B. Impedance mismatch
C. Incorrect voltage
D. All of the above
A. VPNs
B. Firewalls
C. Antivirus
D. IPSec
State whether true or false:
Stateful firewalls do not remember the previous traffic that has occurred earlier in the session
A.
True
B.
False
A. Wink-start
B. Immediate-start
C. Delay-start
D. Loop-start
A. 10 Hz to 9000 Hz
B. 300 Hz to 3400 Hz
C. 200 Hz to 20000 Hz
D. 16 Hz to 1600 Hz
A. Supervisory Signaling
B. Address Signaling
C. Trunk Signaling
D. All of the above
A. Global Positioning System (GPS)
B. Bluetooth
C. Network Interface Card (NIC)
D. None of the above
A. SIP
B. H.323
C. SMTP
D. MGCP
E. FTP
F. RTP
G. RTCP
A. Multi mode
B. Single mode
C. Broadband
D. Baseband
A. Echo Avoidance
B. Echo Suppression
C. Echo Cancellation
D. All of the above
A. 32 kbps
B. 64 kbps
C. 128 kbps
D. 256 kbps
A. CRTP is usually used on slow links i.e. links that have a speed less than 2 Mbps
B. Enabling CRTP does not add up to processing overhead
C. Enabling compression on both sides of the link is not required
D. CRTP can be used to conserve bandwidth on a WAN interface
E. CRTP is not recommended to be used on fast links i.e. links that have a speed more than 2 Mbps
A. 100 ms
B. 125 ms
C. 150 ms
D. 200 ms
A. RTP in transmit direction
B. RTCP in transmit direction
C. RTP in receive direction
D. RTCP in receive direction
A. Class A
B. Class B
C. Class C
D. Class D
E. Class E
F. All of the above
A. Trunk
B. Local Loop
C. Demarcation Point
D. Point of Presence
A. DHCP
B. Firewall
C. NAT
D. None of the above
A. SIP
B. MGCP
C. RTP
D. H.323
A. UDP is more reliable as compared to TCP
B. UDP is fast as compared to TCP
C. UDP re-transmits any packet lost during transmission whereas TCP does not
D. All of the above
A. Physical, Network, Data Link, Session, Transport, Presentation, Application
B. Physical, Data Link, Network, Transport, Session, Presentation, Application
C. Transport, Session, Data Link, Application, Presentation, Network, Physical
D. Physical, Data Link, Network, Transport, Presentation, Session, Application
State whether true or false:
QSIG is implemented on PRI interfaces only.
A.
True
B.
False
A. NTP
B. RTCP
C. RTP
D. All of the above
A. In POTS, if any line is down, a call cannot be made
B. In POTS, the line never goes down
C. In packet-switched networks, if any line goes down, the voice packets can still reach their destination by selecting the best alternate route from the available routes
D. None of the above
A. Basic call setup, management and tearing down of connections
B. Call forwarding
C. Calling party number display
D. All of the above