Mastering Network Interface Cards (NICs)
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Questions and Answers

Which layer of the OSI model is responsible for the MAC address?

  • Transport layer
  • Physical layer
  • Data link layer (correct)
  • Network layer

    • Which device is used to connect two similar network segments together and break up collision domains?

  • Router
  • Network Interface Card (NIC)
  • Bridge (correct)
  • Switch

    • In the network communication example, what does Bob send to the LAN to find Sally's MAC address?

  • ARP request (correct)
  • Broadcast message
  • Destination MAC address
  • IP address

    • Which protocol suite is the most common for networking today and accounts for over 85% of the internet traffic?

    <p>TCP/IP (B)</p> Signup and view all the answers

    What does Sally do when she sees the ARP request broadcasted by Bob?

    <p>Sally responds directly to Bob with her MAC address (D)</p> Signup and view all the answers

    Which layer of the DoD model is responsible for host-to-host communication?

    <p>Host-to-Host layer (A)</p> Signup and view all the answers

    If Sally wanted to reply to Bob, what would she need to find out?

    <p>Bob's MAC address (B)</p> Signup and view all the answers

    Which device is used to connect multiple segments of a network together and recognizes frames and pays attention to the source and destination MAC address?

    <p>Switch (D)</p> Signup and view all the answers

    In which scenario would a router be required for communication?

    <p>When two computers are in different networks (A)</p> Signup and view all the answers

    Which device is used to separate networks and broadcast domains?

    <p>Router (D)</p> Signup and view all the answers

    Which layer of the OSI model is responsible for the IP address?

    <p>Network layer (D)</p> Signup and view all the answers

    Which server is responsible for assigning IP addresses to hosts in a network?

    <p>DHCP Server (C)</p> Signup and view all the answers

    What is the purpose of an ARP request in network communication?

    <p>To find the destination MAC address (C)</p> Signup and view all the answers

    Which server is responsible for matching hostnames or FQDNs to IP addresses and vice versa?

    <p>DNS Server (C)</p> Signup and view all the answers

    Which of the following steps does Bob need to follow to determine if the destination IP address is part of his network?

    <p>Look at the subnet mask (B)</p> Signup and view all the answers

    What is the purpose of the default gateway in a LAN?

    <p>To send data to other networks (B)</p> Signup and view all the answers

    What is a collision domain?

    <p>A network segment where data collisions can occur (C)</p> Signup and view all the answers

    What are the causes of collisions in a collision domain?

    <p>Shared mediums and simultaneous transmissions (A)</p> Signup and view all the answers

    How can collisions be reduced in a network?

    <p>By using switches instead of hubs (B)</p> Signup and view all the answers

    What is a broadcast domain?

    <p>A network segment where broadcast messages are sent (C)</p> Signup and view all the answers

    What are the causes of broadcasts in a broadcast domain?

    <p>Broadcast messages and network discovery (B)</p> Signup and view all the answers

    Which layer of the OSI Model do TCP and UDP protocols operate at?

    <p>Transport layer (A)</p> Signup and view all the answers

    What is the main difference between TCP and UDP?

    <p>TCP is connection-oriented, while UDP is connectionless (C)</p> Signup and view all the answers

    Which step initiates the three-way handshake in TCP?

    <p>SYN (C)</p> Signup and view all the answers

    What is the purpose of the SYN-ACK packet in the three-way handshake?

    <p>To acknowledge the request and agree to establish a connection (C)</p> Signup and view all the answers

    Which layer of the OSI Model does the IP Header belong to?

    <p>Network layer (D)</p> Signup and view all the answers

    What is the purpose of the Identification field in the IP Header?

    <p>To uniquely identify each IP datagram (A)</p> Signup and view all the answers

    Which protocol is responsible for error reporting and diagnostics in IP networks?

    <p>ICMP (C)</p> Signup and view all the answers

    What does ARP stand for?

    <p>Address Resolution Protocol (C)</p> Signup and view all the answers

    What does RARP stand for?

    <p>Reverse Address Resolution Protocol (B)</p> Signup and view all the answers

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