Design and operation of networking interfacing technologies MCQs

  1. What is the primary function of a network interface card (NIC)?
    a) To provide additional storage capacity
    b) To connect a computer to a network
    c) To manage the network traffic
    d) To encrypt data packets
    Answer: b) To connect a computer to a network
  2. Which protocol is commonly used for the communication between network devices at the data link layer?
    a) TCP
    b) IP
    c) Ethernet
    d) HTTP
    Answer: c) Ethernet
  3. What is the main purpose of ‘network address translation’ (NAT)?
    a) To increase network speed
    b) To assign unique IP addresses to each device
    c) To allow multiple devices on a private network to share a single public IP address
    d) To manage network security policies
    Answer: c) To allow multiple devices on a private network to share a single public IP address
  4. Which technology is used to connect devices over a local area network (LAN) and operates at the physical layer?
    a) Switch
    b) Router
    c) Hub
    d) Firewall
    Answer: c) Hub
  5. What does the term ‘bandwidth’ refer to in networking?
    a) The distance a network signal can travel
    b) The amount of data that can be transmitted over a network in a given period
    c) The time delay between sending and receiving data
    d) The physical size of the network cables
    Answer: b) The amount of data that can be transmitted over a network in a given period
  6. In network design, what is the role of a ‘router’?
    a) To connect different networks and direct data packets between them
    b) To amplify network signals
    c) To provide a connection point for network devices
    d) To prevent unauthorized network access
    Answer: a) To connect different networks and direct data packets between them
  7. Which technology enables devices to communicate over a wireless network?
    a) Fiber optics
    b) Wi-Fi
    c) Ethernet cables
    d) Coaxial cables
    Answer: b) Wi-Fi
  8. What is the purpose of ‘Virtual LAN’ (VLAN) technology?
    a) To provide wireless connectivity
    b) To create separate logical networks within the same physical network
    c) To increase the physical size of a network
    d) To manage network security
    Answer: b) To create separate logical networks within the same physical network
  9. Which layer of the OSI model does ‘IP addressing’ operate on?
    a) Physical layer
    b) Data link layer
    c) Network layer
    d) Transport layer
    Answer: c) Network layer
  10. What is ‘Quality of Service’ (QoS) in networking?
    a) A method to improve network security
    b) A technique to prioritize network traffic to ensure the performance of critical applications
    c) A protocol for data encryption
    d) A type of network topology
    Answer: b) A technique to prioritize network traffic to ensure the performance of critical applications

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