Module 5 Flashcards
Question: What does IPv4 stand for?
Answer: Internet Protocol version 4
Question: What is the purpose of IPv4?
Answer: To identify devices on a network using a 32-bit numerical address
Question: How many bits long is an IPv4 address?
Answer: 32-bits
Question: What does IPv4 protocol used for?
Answer: Routing data packets between devices.
Question: What are the five classes of IPv4 addresses?
Answer: A, B, C, D, and E
Question: What is the range of Class A addresses?
Answer: 1.0.0.0 to 126.0.0.0
Question: How many bits are used for the network portion in Class B addresses?
Answer: 16 bits
Question: What is the purpose of Class D addresses?
Answer: They are reserved for multicast addresses and used to send data to multiple hosts at once.
Question: What is the range of Class E addresses?
Answer: 240.0.0.0 to 255.0.0.0.
Question: What class of IPv4 addresses are typically used for large organizations and corporations?
Answer: Class A addresses
Question: What class of IPv4 addresses are typically used for medium-sized organizations?
Answer: Class B addresses
Question: What class of IPv4 addresses are typically used for small organizations or individual users?
Answer: Class C addresses
Question: What is the purpose of Class D addresses?
Answer: They are reserved for multicast addresses, used to send data to multiple hosts at once.
Question: What is the purpose of Class E addresses?
Answer: They are reserved for experimental or future use, not currently used for general internet addressing.
Question: What is IPv4 classful addressing?
Answer: A method of allocating IP addresses that was used in the early days of the internet, where IP addresses are divided into five classes (A, B, C, D, and E) based on the value of the first octet of the address.
Question: How many classes of IP addresses are there in classful addressing?
Answer: Five classes: A, B, C, D and E
Question: What are the limitations of classful addressing?
Answer: Wastage of IP addresses and the inability to subnet large networks effectively.
Question: What is the current addressing scheme used on the internet?
Answer: Classless Inter-Domain Routing (CIDR)
Question: How is the IP address divided in classful addressing?
Answer: IP addresses are divided into five classes (A, B, C, D, and E) based on the value of the first octet of the address, each class has a specific range of addresses and a default number of bits used for the network and host portions of the address.
Question: What is a public IPv4 address?
Answer: An address that is assigned to devices that are connected to the internet and are reachable from any device on the internet.
Question: What is a private IPv4 address?
Answer: An address that is used within a private network and is not reachable from the internet.
Question: What is the main difference between public and private IPv4 addresses?
Answer: Public addresses are globally unique and reachable from the internet, while private addresses are only used within a private network and are not reachable from the internet.
Question: Who is responsible for assigning private IPv4 addresses?
Answer: Internet Assigned Numbers Authority (IANA)
Question: Are private IP addresses unique?
Answer: No, they are not unique, they are commonly used in homes and businesses.
Question: What are reserved addresses?
Answer: IP addresses set aside by the Internet Assigned Numbers Authority (IANA) for specific uses and not intended for general use.
Question: What is the loopback address?
Answer: A special IP address, 127.0.0.1, that is used to refer to the localhost, or the current device being used, used for testing network configurations and for bypassing external network interfaces.
Question: What are Class D addresses used for?
Answer: They are reserved for multicast addresses, used to send data to multiple hosts at once.
Question: What are Class E addresses used for?
Answer: They are reserved for experimental or future use.
Question: What is APIPA (Automatic Private IP Addressing)?
Answer: A feature in Windows operating systems that allows computers to automatically assign themselves IP addresses when a DHCP server is not available. The addresses are in the range of 169.254.0.1 to 169.254.255.254.
Question: What are the essential parameters that need to be configured when setting up an IPv4 host?
Answer: IP address, subnet mask, and default gateway.
Question: What is the method of manually configuring an IP address, subnet mask, and default gateway on a host called?
Answer: Static configuration
Question: What is DHCP?
Answer: Dynamic Host Configuration Protocol, it is a protocol used to automatically assign IP addresses, subnet masks, and default gateways to hosts on a network.
Question: Who is responsible for assigning IP addresses and other network configuration information to hosts on the network in DHCP?
Answer: DHCP server
Question: What are the benefits of using DHCP over static configuration?
Answer: DHCP eliminates the need for manual configuration, it saves time and reduces the chance of errors, DHCP servers keep track of assigned IP addresses, it enables easy IP address management, and DHCP allows for easier network expansion.
Question: What is a subnet?
Answer: A smaller network created by dividing a larger network into smaller, more manageable segments.
Question: What is the purpose of subnets?
Answer: To group hosts with similar network requirements and to reduce network congestion.