Test 2 Networking Fundamentals
The MAC address, which is also known as the ______________ address, is embedded on every NIC and is assumed to be unique.
physical
Utility that is used to verify that TCP/IP is installed, bound to the NIC, configured correctly, and communicating with the network
ping
A ___________ is a DNS client that requests information from DNS name servers.
resolver
A ________ consists of a host's IP address and the port number of an application running on a host, with a colon separating the two values
socket
What two names are used to describe the configuration in which internal and external DNS queries are handled by different DNS servers or by a single DNS server that is specially configured to keep internal and external DNS zones separate?
split DNS and split-horizon DNS
A hexadecimal number is a number written in the base 16 number system
true
Each organization that provides host services on the public Internet is responsible for providing and maintaining DNS authoritative servers for public access
true
NetBIOS applications should be replaces as they are out-of-date
true
What top level domain is used for the air-transport industry?
.aero
What range of ports is referred to as the "well-known" range of ports?
0-1023
A loopback IP address begins with what number?
127
An IPv6 address consists of how many bits?
128
How many clusters of root servers exist?
13
A type of DNS data record that maps the IPv4 address of an Internet-connected device to its domain name.
A (Address) record
A type of DNS data record that maps the IPv6 address of an Internet-connected device to its domain name
AAAA (Address) record
A service available on computers running one of the Windows operating systems that automatically assigns the computer's network interface a link-local IP address. In IPv4, this address is in the range of 169.254.0.1 through 169.254.255.254
APIPA
What two types of IP addresses are used on the Internet?
IPv4 and IPv6
What do the first 24 bits of a MAC address represent?
Organizationally Unique Identifier
A type of DNS data record that is used for reverse lookups, to provide a host name when the IP address is known
PTR (Pointer) record
What RFC outlines recommendations for private IP addresses?
RFC 1918
Which protocol is used to make an initial connection between hosts for transferring multimedia data, relying on other protocols once a connection is established?
SIP
A type of address translation in which a gateway assigns the same public IP address to a host each time it makes a request to access the Internet.
Static Network Address Translation (SNAT)
What protocol is commonly used to request configuration files from another computer?
TFTP
The Network Time Protocol service uses what port number?
UDP 123
A unique set of characters assigned to each NIC by its manufacturer. In the traditional, 48-bit physical addressing scheme, the extension identifier is 24 bits long. In EUI-64, the extension identifier is 40 bits long.
device ID
Traditional MAC addresses are broken into two parts. Name these two parts.
device ID and block ID
In Linux systems, what file contains the settings for the DHCP service?
dhcpd.conf
What are the last two parts of a host name known as?
domain name
DNS follows a centralized database model
false
ICANN is responsible for restrictions on use of the .com, .org, and .net TLDs.
false
What command on Linux will display TCP/IP information associated with every interface on the device?
ifconfig -a
What command below can be used to display a complete summary of all network interfaces in a Windows computer?
ipconfig /all
What two ipconfig commands below are used to show DNS resolver cache information and clear the name resolver cache?
ipconfig /displaydns and ipconfig /flushdns
When two IPv6 nodes are on the same network, they are referred to as
neighbors
A software package or hardware-based tool that can capture and analyze data on a network
packet analyzer
The protocol that is used to synchronize clocks on computers on a network
NTP
A protocol that runs in the Session and Transport layers of the OSI model and associates NetBIOS names with workstations
NetBIOS
A type of address translation in which a gateway has a pool of public IP addresses that it is free to assign to a local host whenever the local host makes a request to access the Internet
Dynamic Network Address Translation (DNAT)
What two address prefixes for IPv6 addresses are used for unique local unicast?
FC00::/7 and FD00::/8
IPv6 address that indicates a global unicast address
FE80::10
____ are not used to find nodes on networks other than the local network
MAC addresses
The IP addresses 169.254.0.1 and 169.254.255.254 are both examples of ___________________.
Automatic Private IP Addressing (APIPA)
Free, open source software that is by far the most popular DNS server software
BIND (Berkeley Internet Name Domain)
The nonprofit corporation currently designated by the U.S. government to maintain and assign IP addresses
Internet Corporation for Assigned Names and Numbers (ICANN)
A port number, which identifies an application on a host, exists at what level of the OSI model?
Transport
