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