IPV4
What IPv4 communication type sends one packet from a source to a specific group of devices that have subscribed to receive it?
Multicast
Given the IP address 10.1.1.55 with a /28 prefix, what is the network ID?
10.1.1.48
What base-16 numbering system represents values using the digits 0-9 along with the letters A-F?
Hexadecimal
An IPv6 address starting with FE80::/10 that is used only for communication on the local subnet is what kind of address?
Link-local address
What is the total length, in bits, of an IPv6 address?
128 bits
An IPv4 address is composed of how many total bits?
32 bits
Within an IPv4 subnet, the address in which every host bit equals 1 is known as what?
The broadcast address
In IPv6 notation, substituting a double colon (::) for a single continuous run of all-zero hextets is called what?
Zero compression
What mechanism translates many internal private IPv4 addresses into one public address (or a small pool of public addresses) at the network edge?
Network Address Translation (NAT)
One hexadecimal character is equivalent to exactly how many bits?
4 bits
Why is a /30 subnet mask considered efficient for point-to-point WAN links between two routers?
It provides exactly 2 usable host addresses, so no addresses are wasted
What is one private IPv4 address range as defined by RFC 1918?
10.0.0.0 - 10.255.255.255 / 172.16.0.0 - 172.31.255.255 / 192.168.0.0 - 192.168.255.255
In IPv6, what protocol replaces the IPv4 ARP process for matching an IPv6 address to a MAC address?
Neighbor Discovery Protocol (NDP)
What IPv6 address assignment method lets a device automatically create its own globally routable address by listening for Router Advertisement messages, without a DHCP server?
Stateless Address Autoconfiguration (SLAAC)
When every bit in an 8-bit octet is set to 1, what decimal number does the octet represent?
255
How many possible IPV4 addresses are there?
4.3 billion, or 2^32
What range of addresses can actually be assigned to hosts on the 192.168.10.0/24 network?
192.168.10.1 - 192.168.10.254
How many bits a reserved for the network portion of a standard IPV6 address?
64 bits
In IPv6 networks, the function that ARP performed in IPv4 (resolving an IP address to a MAC address) is handled by what protocol?
Neighbor Discovery Protocol (NDP)
What is the decimal equivalent of the binary octet 11000000?
192
When a device set for automatic addressing fails to contact a DHCP server, it self-assigns a link-local (APIPA) address from what range?
169.254.0.0/16
What is the formula for calculating the number of usable hosts per subnet?
2^(borrowed bits) - 2
How many possible IPV6 addresses are there?
340 undecillion, or 2^128, unique addresses.
What is the method by which a host can assign itself a localized IPV4 address when it cannot reach a DHCP server, and what is the range of IP addresses for this method?
Automatic Private IP Addressing (APIPA) 169.254.0.0 /16
In legacy classful addressing, which class of IPv4 address has a range of 192 to 223?
Class C