Subnetting Quiz: IP Address and Class B Subnets
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Questions and Answers

What class does the IP address 192.168.100.97 belong to?

  • Class C (correct)
  • Class A
  • Class B
  • Class D

    • What is the subnet mask for 192.168.100.97 with a /27 prefix?

  • 255.255.255.128
  • 255.255.255.224 (correct)
  • 255.255.0.0
  • 255.255.255.240

    • What is the network address obtained from the IP address 192.168.100.97/27?

  • 192.168.100.0
  • 192.168.100.128
  • 192.168.100.96 (correct)
  • 192.168.100.97

    • What is the broadcast address for 192.168.100.97/27?

    <p>192.168.100.127 (D)</p> Signup and view all the answers

    What custom subnet mask is used to support 4 subnets for a Class B address?

    <p>255.255.192.0 (B)</p> Signup and view all the answers

    What is the primary purpose of a gateway in IoT connectivity?

    <p>To transmit data between nodes without connectivity issues (B)</p> Signup and view all the answers

    How many layers are described in the Open Systems Interconnection (OSI) model?

    <p>7 layers (B)</p> Signup and view all the answers

    Which of the following is true about IP addressing?

    <p>It uniquely identifies each device in a network (D)</p> Signup and view all the answers

    What does the term 'switching' refer to in networking?

    <p>Connecting devices to switches for data packet processing (A)</p> Signup and view all the answers

    What is the main difference between the OSI model and the TCP/IP model?

    <p>The OSI model has more layers than the TCP/IP model (A)</p> Signup and view all the answers

    What is represented by an IPv4 address?

    <p>A 32-bit binary number (B)</p> Signup and view all the answers

    What does a subnet mask primarily do in relation to an IP address?

    <p>It logically partitions the IP address into network and host parts. (C)</p> Signup and view all the answers

    What role does a subnet mask play in IP addressing?

    <p>Helps identify the network portion of an IP address (A)</p> Signup and view all the answers

    In the context of IoT, what is the function of a proxy within a gateway?

    <p>It translates all incoming and outgoing data packets. (B)</p> Signup and view all the answers

    Which of the following represents a valid subnet mask format?

    <p>255.255.255.0 (B)</p> Signup and view all the answers

    What class does the IP address 150.10.15.0 belong to?

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

    Which of the following statements is true about subnet masks?

    <p>They must contain continuous 0s after a sequence of 1s. (A)</p> Signup and view all the answers

    How is the subnet mask for the first 16 bits of an address written?

    <p>255.255.0.0 (C)</p> Signup and view all the answers

    How many networks are supported in a Class C network?

    <p>2^8 (C)</p> Signup and view all the answers

    What is the subnet mask for a Class A network?

    <p>255.0.0.0 (C)</p> Signup and view all the answers

    Which IP address is part of Class C?

    <p>192.14.2.0 (C), 193.42.1.1 (D)</p> Signup and view all the answers

    How many total hosts are supported in a Class A network?

    <p>2,097,152 (A)</p> Signup and view all the answers

    What is the usable number of hosts in a Class A network?

    <p>16,777,214 (B)</p> Signup and view all the answers

    Which subnet mask corresponds to a Class C network?

    <p>255.255.255.0 (C)</p> Signup and view all the answers

    What is the number of usable hosts per subnet when dividing a Class C network into 4 subnets?

    <p>30 (A)</p> Signup and view all the answers

    What is required to create 4 subnets from a Class C network?

    <p>2 bits (D)</p> Signup and view all the answers

    Which of the following addresses does NOT belong to the subnet 192.168.1.0/26?

    <p>192.168.1.255 (A)</p> Signup and view all the answers

    What is the network address for the subnet containing the host 192.168.1.130?

    <p>192.168.1.128 (A)</p> Signup and view all the answers

    How many bits are used for host addresses in a Class C subnet if it is divided into 4 subnets?

    <p>6 (B)</p> Signup and view all the answers

    Study Notes

    IoT Networking and Communication Layer - Part 1

    • This presentation covers IoT networking and communication.
    • The course outline includes IoT introduction, physical layer, networking and communication layer, cloud computing, data analytics, case studies, security, threat modeling, targeting the IoT ecosystem, and intrusion detection systems.
    • IoT connectivity involves devices connecting to each other via LANs, possibly through gateways for internet connectivity. Gateways translate protocols and handle communication between devices and systems.
    • The Open Systems Interconnection (OSI) model is a standard abstract model describing a stack of seven protocol layers.
    • The TCP/IP model uses four layers, merging some OSI model layers.

    OSI vs. TCP/IP Model

    • A table compares the OSI and TCP/IP models, outlining their corresponding layers.
    • TCP and UDP are transport layer protocols. TCP provides a stream-based connection, while UDP utilizes message packets. Data diagrams are used in both protocols at the internet layer.
    • A 3-way handshake mechanism is used for establishing connections.

    IoT Protocols

    • A table lists various IoT protocols, associated with their respective communication layers.
    • Protocols mentioned include COAP, MQTT, AMQP, HTTP, AMQP, TCP, UDP, DTLS, 6LoWPAN, RPL, IEEE protocols, GSM, LTE, LPWAN.

    IP Addressing & Routing

    • IP addressing uniquely identifies devices in a network for data packet transmission.
    • The concept of switching and routing connects devices via switches and routers.
    • IP addresses and subnet masks are fundamental to data networks.

    IPv4 Address

    • An IPv4 address is a 32-bit number, typically written in four parts using decimal numbers, such as 192.168.1.1.

    Subnet Mask

    • A subnet mask is a 32-bit number used to logically divide an IP address.

    Subnetting

    • Subnetting is the process of dividing a network into smaller subnetworks, for management and efficiency.

    Calculating Class A, B, and C networks

    • Calculations determine the number of networks and hosts supported in each class.

    Additional Notes

    • Class A, B, and C addresses have different ranges, and their default subnet masks are listed. Determining the network class and subnet mask for various examples of IP addresses are shown.
    • Various examples in the slides detail how to determine the network class, subnet mask, network address, and broadcast addresses from given IP addresses.
    • The presentation includes specific examples of subnetting and calculations needed for subnets with a specified number of hosts.
    • The slides provide diagrams and tables for subnetting examples, showing the division into network, subnet, and host parts of example IP addresses.

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    Description

    Test your knowledge on subnetting with questions related to the IP address 192.168.100.97 and its subnet mask. This quiz covers important concepts like network address, broadcast address, and subnetting for Class B addresses. Perfect for networking enthusiasts and students!

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