MCQs

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1. Which term describes the movement of data packets from one device to another across a network?
   a. Traffic flow
   b. Broadcast
   c. Multicast
   d. Unicast
   Answer: a. Traffic flowwikipedia+1
2. What does a network traffic flow primarily consist of?
   a. Sequence of packets from source to destination
   b. Only broadcast messages
   c. Routing tables
   d. Encryption keys
   Answer: a. Sequence of packets from source to destinationmattjhayes+1
3. North-south traffic in networking typically means data flows:
   a. Between internal and external networks
   b. Between devices on the same subnet
   c. Only within VLANs
   d. Only on wireless networks
   Answer: a. Between internal and external networksfortinet+2
4. East-west traffic describes data flows:
   a. Within a data center or between servers
   b. From data center to external client
   c. Only over VPNs
   d. Through firewalls only
   Answer: a. Within a data center or between serverstechrepublic+2
5. What is a 5-tuple in flow identification?
   a. Source IP, Destination IP, Protocol, Source Port, Destination Port
   b. MAC address, VLAN, Protocol, Source Port, Destination Port
   c. Only IP addresses and protocol
   d. Only port numbers
   Answer: a. Source IP, Destination IP, Protocol, Source Port, Destination Portmattjhayes
6. Which type of network traffic is most vulnerable to external threats?
   a. North-south traffic
   b. East-west traffic
   c. Multicast traffic
   d. Unicast traffic
   Answer: a. North-south trafficgatewatcher+1
7. What is the purpose of monitoring network traffic flows?
   a. To ensure network performance and security
   b. To block all external traffic
   c. Only to limit bandwidth
   d. Only for billing purposes
   Answer: a. To ensure network performance and securityexoprise+2
8. What protocol is commonly used to analyze traffic flows?
   a. NetFlow
   b. SMTP
   c. DHCP
   d. SNMP
   Answer: a. NetFlowkentik
9. Which of the following is NOT a factor influencing traffic flow delays?
   a. Queuing delay
   b. Transmission delay
   c. Propagation delay
   d. Device manufacture date
   Answer: d. Device manufacture datewikipedia
10. Which device is critical for controlling network traffic flow between two segments?
    a. Router
    b. Monitor
    c. Printer
    d. USB hub
    Answer: a. Routergeeksforgeeks+1
11. What is broadcast traffic?
    a. Packets sent to all devices in a subnet
    b. Packets sent only to one destination
    c. Traffic confined to external networks
    d. Traffic only for wireless devices
    Answer: a. Packets sent to all devices in a subnetwikipedia
12. What is the main benefit of east-west traffic in data centers?
    a. Enhanced internal communication and segmentation
    b. Preventing all external access
    c. Slowing network speed
    d. Raising costs
    Answer: a. Enhanced internal communication and segmentationbaeldung+1
13. What component primarily initiates traffic flow in a network?
    a. Source device
    b. Admin console
    c. Firewall
    d. Switch port
    Answer: a. Source devicepynetlabs+1
14. Why would traffic flow analysis be performed during peak network utilization?
    a. To get a realistic representation of traffic types
    b. To slow network operations
    c. Only for troubleshooting
    d. Only for internal audits
    Answer: a. To get a realistic representation of traffic typesitexamanswers
15. Which protocol manages reliable traffic flow using sequence and acknowledgment numbers?
    a. TCP
    b. UDP
    c. ICMP
    d. ARP
    Answer: a. TCPwikipedia
16. UDP traffic flow is characterized by:
    a. Unreliable transmission, no acknowledgments
    b. Always encrypted
    c. Connection-oriented communication
    d. Guaranteed delivery
    Answer: a. Unreliable transmission, no acknowledgmentsmattjhayes
17. Main impact of excessive traffic flows in a network:
    a. Network congestion and performance issues
    b. Improved latency
    c. Lower bandwidth usage
    d. Enhanced security by default
    Answer: a. Network congestion and performance issuesexoprise
18. What is a flow control mechanism in networking?
    a. Technique to manage data transmission rate
    b. Tool for printing documents
    c. Only a hardware feature
    d. Always disables sending packets
    Answer: a. Technique to manage data transmission rateuninets
19. Packet switching networks identify flows by:
    a. Packet sequences sharing common properties
    b. Only MAC address
    c. Physical cable type
    d. Wireless protocols only
    Answer: a. Packet sequences sharing common propertiesmattjhayes+1
20. A multicast flow sends packets to:
    a. Multiple designated recipients
    b. All devices indiscriminately
    c. Only one device
    d. Only servers
    Answer: a. Multiple designated recipientswikipedia
21. Which traffic flow is used mostly for client-server communications?
    a. North-south
    b. East-west
    c. Multicast
    d. Broadcast
    Answer: a. North-southtechrepublic+1
22. Microsegmentation in east-west traffic helps by:
    a. Reducing attack surface
    b. Increasing bandwidth
    c. Slowing communication
    d. Disabling internal connectivity
    Answer: a. Reducing attack surfacetechrepublic
23. The main role of a firewall in traffic flows:
    a. Inspects and controls packet entry/exit
    b. Printing logs
    c. Raising transmission delay
    d. Increasing network congestion
    Answer: a. Inspects and controls packet entry/exitexoprise+1
24. Which protocol analyzer feature is vital for assessing traffic flow patterns?
    a. Capturing packets during different times and across segments
    b. Only monitoring WAN ports
    c. Only storing logs
    d. Running diagnostics on printers
    Answer: a. Capturing packets during different times and across segmentsitexamanswers
25. The transmission delay in a packet flow is determined by:
    a. Packet size and channel capacity
    b. Only destination IP
    c. MAC address length
    d. Operating system version
    Answer: a. Packet size and channel capacitytestbook+1
26. Propagation delay affects:
    a. Time for a packet to travel across the medium
    b. Virtual machine boot speed
    c. Only internal memory
    d. Backup frequency
    Answer: a. Time for a packet to travel across the mediumtestbook+1
27. Queuing delay occurs when:
    a. Packets wait in buffer before transmission
    b. Devices are offline
    c. Traffic is encrypted
    d. Only on wireless links
    Answer: a. Packets wait in buffer before transmissionwikipedia
28. Which type of traffic is most common inside data centers?
    a. East-west traffic
    b. North-south traffic
    c. Best-effort traffic
    d. Voice traffic only
    Answer: a. East-west trafficgatewatcher+1
29. Which tool relies on injected probe packets for traffic measurement?
    a. Active traffic analysis
    b. Passive traffic analysis
    c. Only protocol analyzers
    d. Switch monitoring
    Answer: a. Active traffic analysiscert-in
30. Passive traffic flow analysis means?
    a. Observing existing traffic, not injecting probes
    b. Generating extra traffic
    c. Only capturing broadcast packets
    d. Only analyzing multicast flows
    Answer: a. Observing existing traffic, not injecting probescert-in
31. Which traffic type requires minimum delay and jitter?
    a. Voice
    b. Data
    c. Bulk transfer
    d. Backup flows
    Answer: a. Voiceipcisco
32. Video traffic flow is characterized by:
    a. High volume packets, sensitive to packet loss
    b. Only one packet at a time
    c. Extremely low bandwidth usage
    d. Not impacted by delays
    Answer: a. High volume packets, sensitive to packet lossipcisco
33. Data traffic flow is often:
    a. Not sensitive to packet loss
    b. Always real-time
    c. Always encrypted
    d. Only north-south
    Answer: a. Not sensitive to packet lossipcisco
34. What determines a flow’s path through the network?
    a. Routing decisions made by network devices
    b. Printer configuration
    c. Application logs
    d. Antivirus software
    Answer: a. Routing decisions made by network devicesgeeksforgeeks+1
35. Main goal of traffic engineering:
    a. Achieve efficient, rapid flow of traffic
    b. Increase delays intentionally
    c. Ignore network congestion
    d. Deactivate switches
    Answer: a. Achieve efficient, rapid flow of trafficzealpolytechnic
36. What is the observation point in flow analysis?
    a. Network location where packets are measured
    b. Only server room
    c. Management console
    d. Device MAC address
    Answer: a. Network location where packets are measuredwikipedia
37. Why is NetFlow analysis important?
    a. Provides deep insight into traffic patterns and usage
    b. Only tracks broadcast flows
    c. Blocks all traffic
    d. Slows down networks
    Answer: a. Provides deep insight into traffic patterns and usagekentik
38. WAN traffic flow is mainly associated with:
    a. Data transfer over long distances between networks
    b. Only local subnet traffic
    c. VPN creation
    d. Connecting printers
    Answer: a. Data transfer over long distances between networksexoprise+1
39. A protocol analyzer helps monitor traffic flow by:
    a. Capturing and inspecting packets
    b. Printing files
    c. Only logging WiFi usage
    d. Configuring routers
    Answer: a. Capturing and inspecting packetsitexamanswers
40. In traffic flow analysis, one-way delay is composed of:
    a. Processing, queuing, transmission, propagation delays
    b. Only routing time
    c. Encryption delays only
    d. Data center backup time
    Answer: a. Processing, queuing, transmission, propagation delayswikipedia
41. What happens during a network outage to traffic flows?
    a. Data flow is interrupted, causing financial loss and downtime
    b. Only delays increase
    c. Bandwidth is unlimited
    d. All packets are encrypted
    Answer: a. Data flow is interrupted, causing financial loss and downtimeexoprise
42. Which network component is most likely to inspect packets for security rules?
    a. Firewall
    b. Print server
    c. Management console
    d. DNS server
    Answer: a. Firewalltechrepublic+1
43. Private cloud environments mostly emphasize which traffic type?
    a. East-west traffic
    b. North-south traffic
    c. Multicast traffic
    d. Broadcast traffic
    Answer: a. East-west trafficgatewatcher+1
44. The largest traffic type in modern data centers is:
    a. East-west traffic
    b. North-south traffic
    c. Best-effort traffic
    d. Voice traffic
    Answer: a. East-west trafficgatewatcher+1
45. What is the impact of incorrect router configurations on traffic flows?
    a. Network issues, outages, financial and reputation losses
    b. Faster data transmission
    c. Enhanced redundancy
    d. Improved printer sharing
    Answer: a. Network issues, outages, financial and reputation lossesexoprise
46. What is flow control in data transmission?
    a. Regulation of data transmission rate and volume
    b. Only encryption management
    c. Server authentication
    d. Reducing memory usage
    Answer: a. Regulation of data transmission rate and volumeuninets
47. Which protocol is used for device discovery and may contribute to traffic flows?
    a. ARP
    b. SMTP
    c. TCP
    d. HTTPS
    Answer: a. ARPsanfoundry+1
48. Which traffic flow type best describes backup and redundancy operations inside a data center?
    a. East-west traffic
    b. North-south traffic
    c. Voice traffic
    d. Internet traffic
    Answer: a. East-west traffictechrepublic
49. Which statement best describes multicast flows?
    a. Packets sent to a group of designated hosts
    b. Only used for redundancy
    c. Data sent only to the external network
    d. Packets transmitted blindly to all devices
    Answer: a. Packets sent to a group of designated hostswikipedia
50. What is the primary purpose of segmenting traffic flows in large networks?
    a. Enhance performance and security
    b. Shutdown redundant links
    c. Always encrypt all data
    d. Decrease internal connectivity
    Answer: a. Enhance performance and securitygatewatcher+2

1. https://en.wikipedia.org/wiki/Traffic_flow_(computer_networking)
2. https://www.pynetlabs.com/how-does-packet-flow-in-network/
3. https://mattjhayes.com/2018/09/26/what-is-a-network-traffic-flow/
4. https://www.fortinet.com/resources/cyberglossary/network-traffic
5. https://www.techrepublic.com/article/network-traffic-types/
6. https://www.gatewatcher.com/en/resource/understanding-north-south-and-east-west-traffic-and-the-added-value-of-ndr-in-network-analysis/
7. https://www.baeldung.com/cs/network-traffic-north-south-east-west
8. https://www.exoprise.com/2024/09/26/understanding-network-traffic-flow-segment-analysis/
9. https://cert-in.org.in/Downloader?pageid=5&type=2&fileName=CIPS-2012-0023.pdf
10. https://www.kentik.com/kentipedia/netflow-guide-types-of-network-flow-analysis/
11. https://www.geeksforgeeks.org/computer-networks/basics-computer-networking/
12. https://itexamanswers.net/question/which-two-statements-describe-how-to-assess-traffic-flow-patterns-and-network-traffic-types-using-a-protocol-analyzer-choose-two
13. https://www.uninets.com/blog/computer-networks-mcq
14. https://testbook.com/objective-questions/mcq-on-flow-control–5eea6a0939140f30f369d910
15. https://ipcisco.com/lesson/network-traffic-types/
16. https://zealpolytechnic.com/wp-content/uploads/2023/01/SY-CE-SEM-V-TEN22507-MCQs-reviesed.pdf
17. https://www.sanfoundry.com/computer-network-questions-answers/
18. https://docs.oracle.com/cd/E23824_01/html/821-1458/gjzbf.html
19. https://docs.oracle.com/cd/E26502_01/html/E28992/gjzbf.html
20. https://www.scribd.com/document/322446487/Traffic-Engineering-Solved-Question-Paper