Network+ Guide to Networks (Chapter 3 Summary
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At the root level of the DNS hierarchical structure are 13 clusters of root servers used to locate the
______ servers. These ______ servers hold information about the authoritative servers, which are the
authority on computer names and their IP addresses for computers in their domains. (1 term) - (correct
Answer) - TLD (top-level domain)
The organization responsible for tracking the assignments of domain names, port numbers, and IP
addresses is ______ - (correct Answer) - IANA (Internet Assigned Numbers Authority)
______ contain two parts, are 48 bits long, and are written as hexadecimal numbers separated by
colons. - (correct Answer) - MAC addresses
______ identify nodes at the Network layer. An ______ is required in order for a device to communicate
with an outside network through a gateway device such as a router. (1 term) - (correct Answer) - IP
addresses
The first 24 bits of a MAC address are known as the ______, which identifies the NIC's manufacturer. -
(correct Answer) - OUI (Organizationally Unique Identifier)
The first part of an IPv4 address identifies the ______, and the last part identifies the _______. - (correct
Answer) - network, host.
A ______ is a range of addresses to be assigned to clients when they request an IPv4 address. - (correct
Answer) - DHCP scope
A _______ that stands between a private network and other networks substitutes the private IP
addresses used by computers on the private network with its own public IP address when these
computers need access to other networks or the Internet. This process is called ______. - (correct
Answer) - gateway device, address translation
A ______ specifies a single node on an IPv6 network. - (correct Answer) - unicast address
Review)
Save
At the root level of the DNS hierarchical structure are 13 clusters of root servers used to locate the
______ servers. These ______ servers hold information about the authoritative servers, which are the
authority on computer names and their IP addresses for computers in their domains. (1 term) - (correct
Answer) - TLD (top-level domain)
The organization responsible for tracking the assignments of domain names, port numbers, and IP
addresses is ______ - (correct Answer) - IANA (Internet Assigned Numbers Authority)
______ contain two parts, are 48 bits long, and are written as hexadecimal numbers separated by
colons. - (correct Answer) - MAC addresses
______ identify nodes at the Network layer. An ______ is required in order for a device to communicate
with an outside network through a gateway device such as a router. (1 term) - (correct Answer) - IP
addresses
The first 24 bits of a MAC address are known as the ______, which identifies the NIC's manufacturer. -
(correct Answer) - OUI (Organizationally Unique Identifier)
The first part of an IPv4 address identifies the ______, and the last part identifies the _______. - (correct
Answer) - network, host.
A ______ is a range of addresses to be assigned to clients when they request an IPv4 address. - (correct
Answer) - DHCP scope
A _______ that stands between a private network and other networks substitutes the private IP
addresses used by computers on the private network with its own public IP address when these
computers need access to other networks or the Internet. This process is called ______. - (correct
Answer) - gateway device, address translation
A ______ specifies a single node on an IPv6 network. - (correct Answer) - unicast address
