Computer Network Host Addresses
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Questions and Answers

What is the purpose of a broadcast address?

  • To reach all devices on the IPv4 network (correct)
  • To assign to a device
  • To divide a network into smaller sub-networks
  • To determine the host portion of the address
  • What is the result of having all 1 bits in the host portion of an address?

  • A network address
  • A broadcast address (correct)
  • A host address
  • A subnet mask
  • What is the purpose of a subnet mask?

  • To divide a network into smaller sub-networks (correct)
  • To assign an address to a device
  • To reach all devices on the IPv4 network
  • To determine the host portion of the address
  • What is the network address of the given example?

    <p>192.168.10.0/24</p> Signup and view all the answers

    What is the result of having all 0 bits in the host portion of an address?

    <p>A network address</p> Signup and view all the answers

    What is the last address in the given example?

    <p>192.168.10.254/24</p> Signup and view all the answers

    What is the broadcast address of the given example?

    <p>192.168.10.255/24</p> Signup and view all the answers

    What is the first address in the given example?

    <p>192.168.10.1/24</p> Signup and view all the answers

    What was the main purpose of Class A addresses in the legacy classful addressing system?

    <p>To support extremely large networks with more than 16 million host addresses</p> Signup and view all the answers

    What is the range of addresses for Class B in the legacy classful addressing system?

    <p>128.0.0.0/16 to 191.255.0.0/16</p> Signup and view all the answers

    What is the maximum number of host addresses supported by Class C addresses?

    <p>254</p> Signup and view all the answers

    What was the main issue with the legacy classful addressing system?

    <p>It wasted many IPv4 addresses</p> Signup and view all the answers

    What replaced the legacy classful addressing system?

    <p>Classless addressing</p> Signup and view all the answers

    What is the range of addresses for Class C in the legacy classful addressing system?

    <p>192.0.0.0/24 to 223.255.255.0/24</p> Signup and view all the answers

    What is the range of addresses for Class D in the legacy classful addressing system?

    <p>224.0.0.0 to 239.0.0.0</p> Signup and view all the answers

    What is the range of addresses for Class E in the legacy classful addressing system?

    <p>240.0.0.0 to 255.0.0.0</p> Signup and view all the answers

    What is the maximum number of hosts that can be connected in a single subnet with a subnet mask of 255.0.0.0?

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

    What would be the result of subnetting the 10.0.0.0/8 network at the /16 octet boundary?

    <p>256 subnets, each connecting 65,534 hosts</p> Signup and view all the answers

    What is the purpose of subnetting an IPv4 network?

    <p>To divide a larger network into smaller subnets</p> Signup and view all the answers

    What is the subnet mask for a /24 network?

    <p>255.255.255.0</p> Signup and view all the answers

    How many subnets can be defined by subnetting the 10.0.0.0/8 network at the /24 octet boundary?

    <p>65,536</p> Signup and view all the answers

    What is the advantage of subnetting a network?

    <p>Improve network manageability</p> Signup and view all the answers

    What is the maximum number of hosts that can be connected in a single subnet with a subnet mask of 255.255.255.0?

    <p>254</p> Signup and view all the answers

    What is the binary representation of the subnet mask 255.0.0.0?

    <p>11111111.00000000.00000000.00000000</p> Signup and view all the answers

    What is the result of subtracting 2 hosts per subnet?

    <p>16,382 hosts per subnet</p> Signup and view all the answers

    How many hosts can each of the 1000 subnets support?

    <p>16,382 hosts</p> Signup and view all the answers

    What is the internal part of a company's network called?

    <p>Intranet</p> Signup and view all the answers

    What type of IPv4 addresses do devices in the intranet use?

    <p>Private IPv4 addresses</p> Signup and view all the answers

    What is the prefix of the private IPv4 network address used in the intranet?

    <p>10.0.0.0/8</p> Signup and view all the answers

    What is the part of the company's network containing resources available to the internet called?

    <p>DMZ</p> Signup and view all the answers

    What is the purpose of variable-length subnet masking (VLSM)?

    <p>To minimize the number of unused host addresses per subnet</p> Signup and view all the answers

    Why do network administrators use VLSM in the DMZ?

    <p>To minimize the number of unused host addresses per subnet</p> Signup and view all the answers

    What is the primary function of a DMZ in a computer network?

    <p>To separate a LAN from untrusted networks, such as the public internet</p> Signup and view all the answers

    What is the main consideration when planning subnets?

    <p>The number of subnets needed and the number of host addresses required for each network</p> Signup and view all the answers

    How is the usable number of addresses calculated in a subnet?

    <p>2n – 2</p> Signup and view all the answers

    What is the purpose of a network addressing scheme?

    <p>To accommodate the maximum number of hosts for each network and the number of subnets</p> Signup and view all the answers

    What is the use of the prefix length /25 in subnetting?

    <p>To minimize the number of unused host IPv4 addresses and maximize the number of available subnets</p> Signup and view all the answers

    What is the number of subnets and hosts for a subnet mask of 255.255.255.128?

    <p>2 subnets, 126 hosts</p> Signup and view all the answers

    What is the primary consideration when allocating IP addresses to devices on a LAN?

    <p>The number of host addresses required for each network</p> Signup and view all the answers

    What is the result of increasing the prefix length in a subnet?

    <p>More subnets and fewer hosts</p> Signup and view all the answers

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