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- Which of the following is a connection-oriented protocol?
a. TCP
b. UDP
c. ICMP
d. ARP
Answer: a. TCPtestbook+2 - What is the first phase for establishing a connection in TCP?
a. Flow control
b. Three-way handshake
c. Error detection
d. Congestion control
Answer: b. Three-way handshakepynetlabs+1 - In connection-oriented communication, data delivery is:
a. Unordered and incomplete
b. Ordered and complete
c. Fast but not reliable
d. Only for multicast
Answer: b. Ordered and completeexamradar+2 - Which protocol uses connection-oriented service for email delivery?
a. SMTP over TCP
b. SMTP over UDP
c. FTP over UDP
d. HTTP over UDP
Answer: a. SMTP over TCPyoutubepynetlabs - Which layer of the OSI model provides connection-oriented transport services?
a. Network layer
b. Transport layer
c. Physical layer
d. Data Link layer
Answer: b. Transport layersanfoundry+2 - What guarantees that data arrives in the correct sequence in connection-oriented protocols?
a. Packet switching
b. Sequence numbering
c. Broadcast communication
d. Address Resolution Protocol
Answer: b. Sequence numberingexamradar - What type of connection does TCP provide?
a. Full-duplex
b. Half-duplex
c. Simplex
d. Broadcast
Answer: a. Full-duplextestbook+2 - Connection-oriented protocols always require:
a. A handshake phase
b. Broadcast messages only
c. No error checking
d. Simplex transmission
Answer: a. A handshake phasepynetlabs+1 - Which mechanism is used in TCP for reliable delivery?
a. Retransmission of lost segments
b. No retransmission
c. Packet flooding
d. Load balancing
Answer: a. Retransmission of lost segmentstestbook+1 - Which of the following is NOT connection-oriented?
a. TCP
b. X.25
c. UDP
d. ATM virtual circuit
Answer: c. UDPtestbook+2 - What is required to terminate a TCP connection?
a. Data link establishment
b. Four-way handshake
c. Encryption setup
d. MAC addressing
Answer: b. Four-way handshakesanfoundry+2 - Connection-oriented protocols are often described as:
a. Reliable
b. Fast but unreliable
c. Best-effort
d. Not used in the Internet
Answer: a. Reliablengnetworks+2 - Which of the following services is used by FTP for connection-oriented communication?
a. UDP
b. TCP
c. ICMP
d. ARP
Answer: b. TCPsanfoundry+1youtube - What is the primary benefit of connection-oriented networking?
a. Guaranteed delivery
b. Reduced network load
c. No congestion
d. Stateless service
Answer: a. Guaranteed deliverytestbook+2 - In connection-oriented protocols, what is used for flow control?
a. Window advertisement
b. Data flooding
c. Random access
d. Exponential back-off
Answer: a. Window advertisementexamradar - Which connection-oriented protocol is commonly used for remote terminal access?
a. SSH over TCP
b. SSH over UDP
c. Telnet over UDP
d. SNMP over UDP
Answer: a. SSH over TCPyoutubepynetlabs - Sequence numbers in TCP are used for:
a. Data reassembly
b. Address translation
c. Routing
d. Compression
Answer: a. Data reassemblysanfoundry+1 - TCP uses which of the following for congestion control?
a. Congestion window (cwnd)
b. Static routing table
c. MAC address filtering
d. Source routing
Answer: a. Congestion window (cwnd)testbook+1 - Which phase comes after data transfer in a TCP connection?
a. Connection setup
b. Connection termination
c. Encryption
d. Authentication
Answer: b. Connection terminationexamradar+1 - What is NOT a feature of connection-oriented service?
a. Error detection and correction
b. Acknowledgment of received data
c. Best-effort delivery
d. Flow control
Answer: c. Best-effort deliverytestbook+1 - In connection-oriented networks, what ensures segments are delivered reliably?
a. Checksums and acknowledgments
b. Random timers
c. ARP replies
d. Path redundancy
Answer: a. Checksums and acknowledgmentstestbook+1 - Which device typically operates at connection-oriented transport services?
a. Switch
b. Router
c. Gateway
d. Server
Answer: d. Serverngnetworks+1 - TCP’s retransmission timer is triggered when:
a. No acknowledgment received
b. Data is delivered successfully
c. Data queue is empty
d. Network is idle
Answer: a. No acknowledgment receivedexamradar+1 - Which connection-oriented protocol is used for secure web traffic?
a. HTTPS (HTTP over TCP)
b. FTP over UDP
c. Telnet over UDP
d. SMTP over UDP
Answer: a. HTTPS (HTTP over TCP)youtube - In TCP, if a segment is lost, what happens?
a. Segment is retransmitted
b. Communication is stopped
c. Segment is ignored
d. Another protocol fixes the error
Answer: a. Segment is retransmittedtestbook+1 - What kind of addressing is typically used in connection-oriented communication?
a. Unicast
b. Broadcast
c. Anycast
d. Multicast
Answer: a. Unicastgdcramban+1 - TCP is known for providing which type of service?
a. Connection-oriented, reliable
b. Connectionless, unreliable
c. Multicast only
d. No flow control
Answer: a. Connection-oriented, reliablepynetlabs+2 - What is exchanged during the TCP handshake?
a. SYN and ACK packets
b. Data frames
c. ARP requests
d. IP addresses only
Answer: a. SYN and ACK packetspynetlabs+2 - Which layer in TCP/IP model is connection-oriented?
a. Transport layer
b. Internet layer
c. Network Access layer
d. Application layer
Answer: a. Transport layernwkings+2 - What is the main role of connection-oriented networking in applications?
a. Reliable transmission
b. Quick broadcast
c. Decentralized control
d. Network monitoring
Answer: a. Reliable transmissiontestbook+2 - What type of protocol is used for VoIP when reliability is less important?
a. UDP
b. TCP
c. X.25
d. Frame Relay
Answer: a. UDPtestbook+1 - Which service uses connection-oriented communication to transfer files?
a. FTP
b. SNMP
c. DHCP
d. TFTP
Answer: a. FTPsanfoundry+1youtube - In ATM networks, what is the term for connection-oriented circuits?
a. Virtual circuits
b. Data streams
c. Packet flows
d. Broadcast channels
Answer: a. Virtual circuitstestbook+1 - What is a closed TCP connection state called?
a. FIN-WAIT
b. LISTEN
c. TERMINATED
d. SYN-SENT
Answer: c. TERMINATEDsanfoundry+1 - The receiver window in TCP determines:
a. Amount of data receiver can accept
b. Number of connections receiver can open
c. Number of broadcast packets sent
d. Maximum packet size of network
Answer: a. Amount of data receiver can acceptexamradar+1 - Which of these protocols is exclusively connection-oriented?
a. X.25
b. UDP
c. SNMP
d. ARP
Answer: a. X.25testbook - How does TCP provide error recovery?
a. Retransmission on lost packets
b. Ignoring errors
c. Packet duplication
d. Scrambling addresses
Answer: a. Retransmission on lost packetstestbook+1 - Connection-oriented communication is essential for which task?
a. Database synchronization
b. Quick broadcasts
c. DHCP address assignment
d. DNS query response
Answer: a. Database synchronizationngnetworks+2 - Which flag is set in the final segment of TCP termination phase?
a. FIN
b. PSH
c. URG
d. RST
Answer: a. FINsanfoundry+1 - What is the main drawback of connection-oriented protocols compared to connectionless?
a. More overhead and latency
b. No error correction
c. Only for broadcasting
d. No authentication
Answer: a. More overhead and latencytestbook+1 - In connection-oriented services, the communication path is:
a. Established before data transfer
b. Dynamic during data transfer
c. Never established
d. Always multicast
Answer: a. Established before data transferpynetlabs+1 - The reliability in TCP is achieved via:
a. Acknowledgments, sequence numbering, retransmission
b. Fast broadcasting
c. Encryption only
d. No correction procedures
Answer: a. Acknowledgments, sequence numbering, retransmissionexamradar+1 - Which connection-oriented protocol provides flow control at the transport layer?
a. TCP
b. UDP
c. ARP
d. ICMP
Answer: a. TCPsanfoundry+2 - Connection-oriented protocols are used where:
a. Data integrity is critical
b. Broadcasting is needed
c. Speed is more important than reliability
d. Multicast is required
Answer: a. Data integrity is criticalngnetworks+2 - In TCP, windows are used to manage:
a. Amount of unacknowledged data
b. Number of endpoints
c. Connectionless sessions
d. Maximum routing size
Answer: a. Amount of unacknowledged datatestbook+1 - TCP supports which type of communication mode?
a. Full-duplex
b. Simplex
c. Broadcast
d. Multicast
Answer: a. Full-duplexsanfoundry+1 - A connection-oriented protocol is ideal for:
a. Web browsing
b. Video streaming (high speed)
c. IP telephony (low-latency)
d. Sensor data collection
Answer: a. Web browsingpynetlabs+1 - The initial step in a connection-oriented network is:
a. Establishing a logical connection
b. Starting data transfer immediately
c. Address translation
d. Packet duplication
Answer: a. Establishing a logical connectiontestbook+1 - What type of service does TCP guarantee?
a. Reliable, error-free, ordered delivery
b. Best-effort delivery
c. Unreliable broadcast
d. No ordering
Answer: a. Reliable, error-free, ordered deliverypynetlabs+2 - Which protocol is connection-oriented at the data link layer?
a. LAPB
b. UDP
c. TCP
d. ICMP
Answer: a. LAPBtestbook
- https://testbook.com/objective-questions/mcq-on-udp–5eea6a0939140f30f369d8fd
- https://www.sanfoundry.com/computer-networks-questions-answers-transport-layer/
- https://easyexamnotes.com/networking-devices-and-tcp-ip-protocol-suite-mcqs/
- https://www.pynetlabs.com/tcp-ip-interview-questions-and-answers/
- https://testbook.com/objective-questions/mcq-on-tcp–5eea6a0939140f30f369d8fc
- https://examradar.com/computer-networking-transport-layer-mcqs/
- https://www.ngnetworks.in/blog/top-10-network-engineer-interview-questions-with-answers
- https://www.youtube.com/watch?v=Z6VFzAzzhTs
- https://www.ccbp.in/blog/articles/computer-network-mcq
- https://www.learntheta.com/aptitude-questions-computer-network/
- https://www.sanfoundry.com/computer-networks-questions-answers-tcp/
- https://testbook.com/question-answer/which-of-the-following-statements-are-truea-x–6253cbdadac64475d94f1319
- https://www.gdcramban.in/MCQ/networkmcq.pdf
- https://www.nwkings.com/tcp-ip-protocol-interview-questions-and-answers
- https://www.sanfoundry.com/computer-network-questions-answers/
- https://www.placementpreparation.io/mcq/computer-network/
- https://reck.ac.in/wp-content/uploads/2023/04/DCN_MCQ-Ashwini-.pdf
- https://www.geeksforgeeks.org/blogs/top-50-tcp-ip-interview-questions-and-answers/
- https://www.interviewbit.com/networking-interview-questions/
- https://www.scribd.com/document/372200355/Computer-Networks-MCQ-Interview-Questions-With-Answer-Set-8-InfoTechSite