Network+ Guide to Networks Chapter 2
Terms in this set (50)
service available on computers running windows that automatically assigns the computer's network interface a link-local IP address. is in the range of 169.254.0.1 to 169.254.255.254
automatic private IP addressing (APIPA)
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
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
A type of DNS data record that maps the IPv6 address of an Internet-connected device to its domain name.
AAAA (Address) record
A protocol that runs in the Session and Transport layers of the OSI model and associates NetBIOS names with workstations.
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.
A software package or hardware-based tool that can capture and analyze data on a network.
The nonprofit corporation currently designated by the U.S. government to maintain and assign IP addresses.
A type of DNS data record that maps the IPv4 address of an Internet-connected device to its domain name.
A (Address( record)
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
What two ipconfig commands below are used to show DNS resolver cache information and clear the name resolver cache?
What two address prefixes for IPv6 addresses are used for unique local unicast?
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?
Traditional MAC addresses are broken into two parts. Name these two parts.
What two types of IP addresses are used on the Internet?
Describe the two different types of NAT.
Static NAT (Network Address Translation)
Dynamic NAT (Network Address Translation)
PAT (Port Address Translation)
Explain the three different tunneling protocols developed for transmission of IPv6 packets over or through an IPv4 network.
Describe the difference between unicast, multicast, and anycast addresses.
Unicast is used when two network nodes need to talk to each other.
Multicast is like a broadcast that can cross subnets, but unlike broadcast does not touch all nodes.
To use anycast you advertise the same network in multiple spots of the Internet, and rely on shortest-path calculations to funnel clients to your multiple locations
Describe how an IPv6 address is written and displayed.
IPv6 ip address is typically written in hexadecimal separated by colon. A colon separates 16 bit
What is a subnet mask, and how is it used?
A Subnet mask is a 32-bit number that masks an IP address, and divides the IP address into networkaddress and host address. identify network address of an IP address by perfoming a bitwise AND operation on the netmask.
The IP addresses 169.254.0.1 and 169.254.255.254 are both examples of ___________________.
Automatic Private IP Addressing (APIPA)
________________ are not used to find nodes on networks other than the local network.
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.
A ___________ is a DNS client that requests information from DNS name servers.
The MAC address, which is also known as the ______________ address, is embedded on every NIC and is assumed to be unique.
What protocol is commonly used to request configuration files from another computer?
What RFC outlines recommendations for private IP addresses?
What utility is used to verify that TCP/IP installed, bound to the NIC, configured correctly, and communicating with the network?
When two IPv6 nodes are on the same network, they are referred to as which of the following?
Select the protocol below that is used to synchronize clocks on computers on a network:
Select the name of the free, open source software that is by far the most popular DNS server software:
The Network Time Protocol service uses what port number?
Which protocol below is used to make an initial connection between hosts for transferring multimedia data, relying on other protocols once a connection is established?
Select the IPv6 address below that indicates a global unicast address:
What command on Linux will display TCP/IP information associated with every interface on the device?
In Linux systems, what file contains the settings for the DHCP service?
A loopback IP address begins with what number?
What range of ports is referred to as the "well-known" range of ports?
How many clusters of root servers exist?
What top level domain is used for the air-transport industry?
What command below can be used to display a complete summary of all network interfaces in a Windows computer?
What do the first 24 bits of a MAC address represent?
Organizationally Unique Identifier
What are the last two parts of a host name known as?
A port number, which identifies an application on a host, exists at what level of the OSI model?
An IPv6 address consists of how many bits?
Each organization that provides host services on the public Internet is responsible for providing and maintaining DNS authoritative servers for public access.
ICANN is responsible for restrictions on use of the .com, .org, and .net TLDs.
NetBIOS applications should be replaced as they are out-of-date.
DNS follows a centralized database model.
A hexadecimal number is a number written in the base 16 number system.