Questions and Answers
Which of the following is a valid IPv4 address? (Select two)
Match the following IP addresses with their respective classes:
124.77.8.5 = Class A 131.11.0.9 = Class B 190.66.250.10 = Class B 196.5.89.44 = Class C
Which three of the following IP addresses are Class B addresses? (Select all that apply)
Which of the following IP addresses have a default subnet mask of 255.255.0.0? (Select all that apply)
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What is the default subnet mask for the IP address 203.111.3.3?
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How would you identify the address and mask 129.11.99.78 using CIDR notation?
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What is the best description of how addressing is configured for the subnet 198.162.1.0/23?
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What type of address is 192.168.2555.188 with a mask of 255.255.0.0?
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Which organization is responsible for allocating public IP addresses?
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What best describes the purpose of using subnets?
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Which network IDs will be assigned to the subnets when using a subnet mask of 255.255.192.0 on the 172.17.0.0 network? (Select two)
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What address would you use for the default gateway on Wrk1 to communicate with hosts on the Internet?
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What specific configuration is needed manually for the workstation to connect to the Internet?
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What is the best action to take if hosts on a new network segment can no longer contact the DHCP server?
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Study Notes
IPv4 Addresses
- Valid IPv4 addresses include 2.2.2.2 and 172.16.1.26.
- Class A, Class B, and Class C are classifications of IP addresses, with examples like 124.77.8.5 (Class A), 131.11.0.9 (Class B), and 196.5.89.44 (Class C).
Subnet Masks and CIDR Notation
- Default subnet mask of 255.255.0.0 is associated with addresses like 129.0.0.1 and 168.16.5.1.
- The default subnet mask for the IP address 203.111.3.3 is 255.255.255.0.
- CIDR notation for a host with 129.11.99.78 and a default mask is 129.11.99.78/16.
Subnetting Concepts
- Supernetting refers to using a subnet address like 198.162.1.0/23.
- Subnets facilitate the division of an IP network into multiple network addresses.
IP Addressing in Networking
- Classless addressing is reflected in the IP address 192.168.255.188 with a mask of 255.255.0.0.
- IANA is responsible for the allocation of public IP addresses.
Configuring Network Devices
- When subnetting with a mask of 255.255.192.0 on the 172.17.0.0 network, network IDs can be 172.17.0.0 and 172.17.128.0.
- The default gateway for a workstation (Wrk1) to communicate with the internet is the IP address assigned to Fa0/0 on Router1.
- For workstation configuration, use the following:
- IP Address: 192.168.12.46
- Subnet Mask: 255.255.255.240
- Default Gateway: 192.168.12.34
- DNS Server: 198.162.1.22.
Troubleshooting Network Issues
- Implementing an IP Helper address on the router can resolve issues where hosts on new network segments cannot communicate with a DHCP server.
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Description
Test your knowledge on IPv4 addresses, subnet masks, and CIDR notation with this quiz. Learn about the various classes of IP addresses and the intricacies of subnetting in networking. Challenge yourself on the essential concepts that underlie effective network configuration.
