IP Addressing Flashcards
CompTIA A+ 220-1201 (V15) Flashcards
| Front | Back |
| Anycast | Delivered to the nearest interface |
| APIPA Range | 169.254.0.0-169.254.255.255 |
| Broadcast | Delivered to any interface or node in the same LAN. IPv4 only. |
| CIDR Notation | A method for allocating IP addresses and routing that uses a suffix (e.g. /24) to indicate the network prefix length instead of traditional classes |
| Default Gateway | The network node that acts as the primary forwarding point for traffic destined for networks outside the local subnet; typically a router |
| DHCPv6 | A protocol that assigns IPv6 addresses and configuration parameters to devices from a central server similar to DHCP in IPv4 |
| IP | Internet Protocol |
| IPv4 | Internet Protocol version 4; 32 Bits |
| IPv4 Class A Range | 1.0.0.0 to 126.0.0.0 |
| IPv4 Class B Range | 128.0.0.0 to 191.255.255.255 |
| IPv4 Class C Range | 192.0.0.0 to 223.255.255.255 |
| IPv4 Loop-back Address | 127.0.0.1 |
| IPv6 | Internet Protocol version 6; 128 Bits |
| IPv6 Global | IPv6 version of public addresses. Must be unique and are usable on the Internet. |
| IPv6 Link-Local | IPv6 version of APIPA. Automatically configured, and only usable on local segment. (fe80::/64) |
| IPv6 Site-Local | IPv6 version of Private Addressing. Only usable within a single organization or site. Not usable on Internet. (fc00::/7) |
| Maximum Transmission Unit (MTU) | The largest size of an IP packet that can be transmitted in a single network layer transaction without requiring fragmentation |
| Multicast | Delivered to a group of interfaces or nodes. |
| NAT | Network Address Translation. Translates IP Addresses between different networks. Typically between a public and private network |
| NAT vs PAT | A comparison where NAT translates whole IP addresses while PAT allows multiple devices to share a single IP address by differentiating sessions using port numbers |
| Private Class A Range | 10.0.0.0 to 10.255.255.255 |
| Private Class B Range | 172.16.0.0 to 172.31.255.255 |
| Private Class C Range | 192.168.0.0 to 192.168.255.255 |
| Private IP Address | Usable only on private networks. Can not be routed through the Internet |
| Public IP Address | Usable on both private and public networks. Can be routed through the Internet, as long as the IP Address is unique |
| Reserved IPv4 Addresses | Special IPv4 addresses such as 0.0.0.0 for the default route and 255.255.255.255 for broadcast that are reserved for specific network functions |
| Subnet Mask | A 32-bit number used in IPv4 to divide the address into network and host portions; common notation is 255.255.255.0 |
| Unicast | Delivered to one interface or node |
About the Flashcards
Flashcards for the CompTIA A+ exam give you a fast way to memorize the core IP addressing material expected on test day. From learning what IP stands for to recognizing whether an address is public or private, each card condenses essential facts so you can quiz yourself quickly and pinpoint weak spots.
The deck walks through IPv4 classes, CIDR notation, subnet masks, and the specific private ranges you must memorize. It contrasts IPv4 with 128-bit IPv6, explains link-local, site-local, and global scopes, and reviews NAT versus PAT, DHCPv6, and MTU sizing. Unicast, multicast, anycast, and broadcast delivery methods round out the coverage, equipping you to answer address-management and routing questions with confidence.
Topics covered in this flashcard deck:
- IPv4 & IPv6 addressing
- Private vs public ranges
- Subnetting & CIDR masks
- NAT, PAT, translation
- Unicast, multicast, broadcast