IPv4
32 bits
Name one of the 3 IP address ranges reserved by RFC 1918 for internal private use.
10.0.0.0/8
172.16.0.0/12
192.168.0.0/16
What type of transmission sends a message from one device to one specific recipient on a network?
Unicast transmission
How many bits make up an IPv6 address?
128 bits
What protocol dynamically assigns IPv4 address configurations to end devices?
Dynamic Host Configuration Protocol (DHCP)
What term describes the four 8-bit (1 byte) sections of an IPv4 address?
Octet
What service translates private IPv4 addresses to public IPv4 addresses before routing packets across the internet?
Network Address Translation (NAT)
What destination IP address is used when a host sends a limited broadcast packet to all devices on the local network?
255.255.255.255
What is the term for a 16-bit segment containing 4 hexadecimal digits in an IPv6 address?
Hextet
What is the exact four-step sequence of messages exchanged between a DHCP client and server?
Discover, Offer, Request, Acknowledgement
In the IP address 192.168.5.11 with a subnet mask of 255.255.255.0, which portion represents the host number?
The last octet, 11
What special IPv4 address is used by a host to direct traffic to itself to test local IP configurations? (Hint - Loopback Address)
127.0.0.1 (or 127.0.0.0/8)
What networking device separates Layer 2 broadcast domains by refusing to propagate broadcast traffic by default?
Router
What is the most compressed format for the IPv6 address:
2001:0DB8:0000:AB00:0000:0000:0000:1234
2001:DB8:0:AB00::1234
What is the destination IP address used when an IPv4 host sends an initial DHCPDISCOVER message?
255.255.255.255
What is the network number for a /24 local area network with host IP 192.168.1.50?
192.168.1.0
What is one way to logically subnet/segment a network?
By location (floor 1 vs. floor 2 vs. floor 3)
By function (accounting vs. IT vs. administration)
By device type (printers vs. servers vs. hosts)
What is one reason a network administrator would choose to create subnets?
To improve network performance
To simplify network design
What is the rule that governs the double colon (::) compression technique in IPv6?
(What does the double colon replace and how many can you have in a single IPv6 address?)
The double colon can only be used once within an address to replace a contiguous string of all-zero hextets.
How does DHCP manage IP assignments so that addresses can be reused when devices disconnect?
Addresses are leased for a limited time and returned to the DHCP pool upon expiration or disconnection
Why is IPv4 addressing referred to as hierarchical addressing?
Because the address breaks into network and host portions, allowing routers to forward packets without needing to track individual host locations.
What legacy classful addressing block supported small networks with up to 254 host addresses using a fixed /24 prefix?
Class C
What IPv4 address range is reserved for multicast communication groups?
224.0.0.0 to 239.255.255.255
Name one of the 3 methods that allow for IPv4 and IPv6 networks to coexist during transition.
Dual-stack
Tunneling
Translation
What types of devices on a network are typically assigned static IP addresses rather than dynamic addresses?
Printers, web servers, and other networking infrastructure devices