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NETWORKING II MIDTERM REVIEWER
Contributed by: Yang
  • 1. What type of IP address is used to send data to all devices on a local network?
A) broadcast address
B) IP address
C) Public IP address
D) MAC address
  • 2. Which protocol is used to assign dynamic IP addresses to devices on a network?
A) SNMP
B) DNS
C) FTP
D) DHCP
  • 3. What is the primary function of the Data Link layer in the OSI model?
A) Routing Data
B) Flow control
C) Logical addressing
D) Error detection and correction
  • 4. What device forwards data packets between different network segments based on MAC addresses?
A) Switch
B) Router
C) Hub
D) Firewall
  • 5. Which layer of the OSI model is responsible for establishing, maintaining, and terminating connections between applications?
A) Transport layer
B) Data link layer
C) Session layer
D) Network layer
  • 6. What does DNS stand for in the context of networking?
A) Dynamic Network Server
B) Domain Network Service
C) Data Naming System
D) Domain Name System
  • 7. Which of the following is not a common network topography?
    *
A) Bus
B) Star
C) Mesh
D) Tunnel
  • 8. Which protocol is commonly used for sending emails?
A) FTP
B) HTTP
C) DHCP
D) SMTP
  • 9. In a network, what is the purpose of the ARP (Address Resolution Protocol)?
A) Establishing secure connections
B) Resolving IP addresses to MAC addresses
C) Resolving MAC addresses to IP addresses
D) Managing network routing tables
  • 10. When a router makes decisions on how to forward data packets, which information does it primarily use?
A) MAC address
B) Subnet mask
C) Port number
D) IP address
  • 11. Which type of cable is commonly used to connect a computer to a local area network?
A) Fiber optic cable
B) Ethernet cables
C) HDMI cable
D) Coaxial cable
  • 12. What is the purpose of NAT (Network Address Translation) in a network?
A) Manage Quality of Service (QoS)
B) Translate private IP addresses to a single public IP address
C) Encrypt data for secure transmission
D) Block malicious websites
  • 13. Which network layer is responsible for logical addressing and routing of data packets?
    *
A) Network layer
B) Physical layer
C) Data Link layer
D) Transport layer
  • 14. What is the unit of data sent between network devices?
A) URL
B) Script
C) Packet
D) Cookie
  • 15. In a TCP/IP network, which protocol is responsible for the reliable delivery of data packets?
A) HTTP
B) UDP
C) IP
D) TCP
  • 16. Which of the following is a method of securing network communication by encrypting data?
A) POP
B) FTP
C) SSL
D) SMTP
  • 17. In "Stop-and-Wait" ARQ, what is the key principle of automatic repeat requests?
A) Ignoring acknowledgment frames
B) Using variable window sizes
C) Sending all frames in advance
D) Detecting errors and requesting retransmission
  • 18. In sliding window flow control, what does "piggybacking" refer to?
A) Transmitting multiple frames simultaneously
B) Combining data frames with acknowledgment frames
C) Combining multiple acknowledgment frames into one
D) Frame concatenation
  • 19. Which layer of the OSI model is responsible for data link control protocols?
A) Network layer
B) Transport layer
C) Physical layer
D) Data link layer
  • 20. 2+2=?
A) 23
B) 4
C) 22
D) 2
  • 21. In the "Stop-and-Wait" protocol, what is the purpose of the acknowledgment frame?
A) To carry routing information
B) To acknowledge successful receipt of the data frame
C) To request retransmission of the data frame
D) To identify errors in the data frame
  • 22. What is the primary purpose of the "Stop-and-Wait" protocol in data communication?
A) Address resolution
B) Flow control
C) Routing
D) Error detection
  • 23. In the "Stop-and-Wait" protocol, what is the size of the sliding window?
A) 2
B) 0
C) 1
D) Variable
  • 24. Which data link control protocol is used to establish a secure, encrypted connection between two devices on the internet?
A) SSL/TLS
B) BGP
C) IPsec
D) SSH
  • 25. What is the primary limitation of the "Stop-and-Wait" protocol in terms of efficiency?
A) It has a fixed window size.
B) It is not suitable for high-speed networks
C) It lacks support for acknowledgment frames
D) It cannot detect errors in data frames
  • 26. What is the significance of the window size in sliding window flow control?
A) It defines the maximum number of unacknowledged frames.
B) It identifies the sender's IP address
C) It affects the network topology.
D) It determines the frame size
  • 27. What happens if the sender receives a negative acknowledgment (NAK) in the "Stop-and-Wait" protocol?
A) The sender reduces the transmission speed.
B) The sender retries the transmission of the current frame.
C) The sender terminates the communication.
D) The sender proceeds to send the next frame.
  • 28. In "Stop-and-Wait" ARQ, what does ARQ stand for?
A) Automatic Repeat Request
B) Acknowledgment and Resend
C) Acknowledgment and Request
D) Automated Retry and Query
  • 29. In sliding window flow control, what does the "window" represent?
A) The time it takes for a frame to travel from sender to receiver
B) The number of frames that can be sent before requiring an acknowledgment
C) The number of bits in a frame
D) The buffer space available for incoming data
  • 30. In the "Stop-and-Wait" protocol, what is the typical role of the sender after transmitting a data frame?
A) Wait for an acknowledgment before sending the next frame
B) Forward the frame to the next hop
C) Continue sending the next frame immediately
D) Retry the transmission
  • 31. Which data link control protocol is commonly used in wireless networks and provides a connectionless service?
A) IEEE 802.11
B) Bluetooth
C) Zigbee
D) Wi-Fi
  • 32. What is the primary advantage of the "Stop-and-Wait" protocol?
A) High throughput
B) Support for multiple concurrent transmissions
C) Simplicity and ease of implementation
D) Low latency
  • 33. What is the role of a firewall in a LAN?
A) Providing routing between LANs
B) Blocking unauthorized access and protecting the network from security threats
C) Managing VLANs
D) Extending the wireless network range
  • 34. What is the primary function of a hub in a LAN?
A) Filtering network traffic collision domain
B) Routing data packets
C) Connecting multiple devices in a single
D) Providing wireless connectivity
  • 35. Which LAN transmission equipment extends the range of a wireless network and provides wireless connectivity to wired devices?
A) Router
B) Switch
C) Hub
D) Access Point
  • 36. Which LAN transmission equipment operates at the Physical layer (Layer 1) and regenerates incoming signals to extend the reach of a network?
A) Repeater
B) Hub
C) Router
D) Bridge
  • 37. Which LAN transmission equipment operates at Layer 2 of the OSI model and uses MAC addresses to forward data frames?
A) Access Point
B) Hub
C) Switch
D) Router
  • 38. What is the primary purpose of a network hub in a LAN?
A) Route data between different networks
B) Segment the LAN into multiple subnets
C) Broadcast data frames to all devices in the network
D) Create virtual LANs (VLANs)
  • 39. What is the primary purpose of a router in a LAN?
A) Connect multiple devices in a LAN
B) Connect different networks and route data between them
C) Forward data frames based on MAC addresses
D) Amplify wireless signals
  • 40. Which device divides a network into segments to reduce collision domains and operates at the Data Link layer (Layer 2)?
A) Router
B) Switch
C) Repeater
D) Bridge
  • 41. Which LAN transmission equipment is used to segment a LAN into multiple collision domains?
A) Bridge
B) Router
C) Hub
D) Switch
  • 42. What is the primary function of an Ethernet transceiver in a LAN?
A) Converting digital signals to analog for transmission over coaxial cable
B) Regenerating and amplifying signals
C) Extending the range of wireless networks
D) Managing VLANs
  • 43. What is the primary function of a network switch in a LAN?
A) Broadcast data frames to all devices in the network
B) Provide wireless connectivity
C) Create virtual LANs (VLANs)
D) Route data between different networks
  • 44. What is the function of a network switch in LAN environments?
A) Provides wireless connectivity to LAN devices
B) Segments networks to reduce collisions and improve performance
C) Directs data between different networks
D) Connects LANs over long distances
  • 45. Which LAN transmission equipment is designed to connect LANs of different types, such as Ethernet and Token Ring?
A) Hub
B) Switch
C) Router
D) Gateway
  • 46. What is the purpose of a network modem in a LAN?
A) Providing routing between LANs
B) Connecting LANs of different types
C) Modulating and demodulating data for transmission over a communication medium
D) Extending the wireless network range
  • 47. What is the primary purpose of an Ethernet switch in a LAN setup?
A) To connect multiple devices and manage traffic efficiently
B) To forward packets based on IP addresses
C) To route data between different networks
D) To regenerate signals for long-distance transmission
  • 48. What is the primary function of a LAN repeater?
A) Filtering network traffic
B) Extending the range of wireless networks
C) Regenerating and amplifying signals to overcome signal degradation
D) Segmenting a LAN into multiple collision domains
  • 49. What distinguishes a hub from a switch in a LAN environment?
A) Hubs operate at higher speeds than switches.
B) Hubs can filter and forward data more efficiently than switches.
C) Hubs are used for wireless connections.
D) Switches are more intelligent and selective in forwarding data.
  • 50. The service provider supplies the costumet with what appears to be a Ethernet connection to the network
A) Metro Ethetnet WAN connections
B) Leased line WAN connections
C) Most common standards
  • 51. The service orovider may use a variety of different WAN technologies depending on the level of service required
A) Metro Ethetnet WAN connections
B) Most common standards
C) Leased Line WAN conbections
  • 52. Is a didicated vonnections between two end nodes that the costumet leases from a communication company
A) Metro Ethernet WAN connections
B) Leased Line WAN vonnection
C) Most common standards
  • 53. Optical carrier level are establishedby SONET and SDH and may use CWDM and DWDM to increase capacity on a cable
A) Common standard
B) Metro Ethetnet WAN Connections
C) Leased line WAN connection
  • 54. The most common T-carrier are
A) T1-T3
B) E1-E3
C) OC1-OC3
  • 55. The most common E-carrier line are
A) E1-E3
B) T1-T3
C) OC1-OC3
  • 56. The most common optical-carrier are
A) T1-T3
B) E1-E3
C) OC1-OC3
  • 57. One of the most indicators of WAN is if the infrastracture is not owned by a single intentity
A) Fiber
B) Public Swithed Telephone Network (PSTN)
C) Broadband cable
  • 58. One of the most widely use WAN infrastracture
A) Public Swithed Telephone Network (PSTN)
B) Fiber
C) Broadband cable
  • 59. Can be used to carry analog traffic a dialog up connection or digital traffic through ISDN or xDSL
A) Fiber
B) Public Swithed Telephone Network (PSTN)
C) Brodband cable
  • 60. These are capable of carrying voice data and television
A) Public Swithed Telephone Network (PSTN)
B) Fiber
C) Broadband cable
  • 61. The signal is formated at the head end anddilivered toa fistribution network to be sent on the end user
A) Broadband cable
B) Fiber
C) Public Swithed Telephone Network (PSTN)
  • 62. The end user are all sharethe bandwdth of the distribution network
A) Fiber
B) Public Swithed Telephone Network (PSTN)
C) Broadband cable
  • 63. Is a fast and highly bandwidth WAN technology that uses a light to transmit voice and data down to fiber optic
A) Fiber
B) Public Swithed Telephone Network (PSTN)
C) Broadband cable
  • 64. It is capable of achieving multiple gigabit transmission level
A) Broadband cable
B) Fiber
C) Public Swithed Telephone Network (PSTN)
  • 65. The two main methods of connecting cellular device to cellular network and are not compatible
A) GSM/CDMA WAN Connections
B) Satellite WAN connections
C) WiMax WAN connections
  • 66. Was originally designed at last mile solution for areas in which DSL abd cable were noy available
A) Satellite WAN connections
B) WiMax WAN connections
C) GSM/CDMA WAN Connections
  • 67. It utilize microwave signals between light relay station to deliver broadband traffic to a fixed location
A) GSM/CDMA WAN Connections
B) Satellite WAN connections
C) WiMax WAN connections
  • 68. It can span significant geographic distances
A) Satellite WAN connections
B) GSM/CDMA WAN Connections
C) WiMax WAN connections
  • 69. Uses microwave radio trabsmission as a method of trabsmitting data over the air
A) GSM/CDMA WAN Connections
B) Satellite WAN connections
C) WiMax WAN connections
  • 70. Uses microwave radio relays and satelite span large distances that are still line in site
A) Satellite WAN connections
B) GSM/CDMA WAN Connections
C) WiMax WAN connections
  • 71. These vast distance often leadto latency in the transmission
A) WiMax WAN connections
B) GSM/CDMA WAN Connections
C) Satellite WAN connections
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