Network+ Guide to Networks - Chapter 4

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False

T/F: All protocols are routable

True

T/F: ICMP (Internet Control Message Protocol) reports on the success or failure of data deliver.

False

T/F: If a device does not know its own IP address it can still use ARP.

False

T/F: The command used to view IP information on a Windows XP or Windows Vista workstation is ifconfig

False

T/F: If your network does not need or use APIPA, it must be uninstalled to avoid conflicts.

connection oriented

TCP is a ___ subprotocol

port

A ___ number is the address on a host where an application makes itself available to incoming or outgoing data.

UDP

___ is more efficient than TCP for carrying messages that fit within one data packet.

four

A UDP header contains ___ fields.

IP

The subprotocol that enables TCP/IP to internetwork - that is, to traverse more than one LAN segment and more than one type of network through a router is ____

IGMP

____ operates at the Network layer and manages multicasting

dynamic

___ ARP table entries are created when a client makes an ARP request that cannot be satisfied by data already in the ARP table.

IP

In the TCP/IP protocol suite, ___ is the core protocol responsible for logical addressing.

32-bit

In IPv4 addressing, each IP address is a unique ___ number.

C

In IPv4 addressing, an IP address whose first octet is in the range of 192-223 belongs to a Class ___ network.

B

In IPv4 addressing, a node with an IP address of 168.34.88.29 belongs to a Class ___ network.

period

In dotted decimal notation, a___ separates each decimal.

255.255.0.0

The default subnet mask for a Class B network is ___.

DHCP

In most cases BOOTP has been surpassed by the more sophisticated IP addressing utility ____.

anycast

A ___ address represents any one interface from a group of interfaces, any one of which can accept a transmission.

format prefix

In IPv6, each address contains a ___ or a variable length field at the beginning of the address that indicates what type of address it is.

10.43.3.87:21

If the standard port number for the Telnet service is 21, a host whose IPv4 address is 10.43.3.87 has a socket address for Telnet of ___.

com

In the domain name www.google.com, ___ Is the top-level domain (TLD).

telnet

___ is a terminal emulation protocol used to log on to remote hosts using the TCP/IP protocol suite.

NTP

___ is a simple Application layer protocol used to synchronize the clocks of computers on a network.

PING

___ is a utility that can verify that TCP/IP is installed, bound to the NIC, configured correctly, and communicating with the network.

routable

Protocols that can span more than one LAN or LAN segment are ___ because they carry Network layer addressing information that can be interpreted by a router.

ip diagram

In the context of TCP/IP a packet is known as a ___.

subnet mask

A ___ is a special 32-bit number that, when combined with a devices IP address, informs the rest of the network about the segment or network to which the device is attached

subnetting

___ is a process of subdividing a single class of networks into multiple, smaller logical networks, or segments.

ip address

Whether connecting to the Internet or to another computer within a LAN, every node on a network must have a unique ____

well known ports

Ports ranging from 0 to 1023; assigned to processes that only the operating system or administrator of the system can access.

registered ports

Ports ranging from 1024 to 49151; accessible to network users and processes that do not have special administrative privileges.

dynamic ports

Ports ranging from 49152 through 65535; open for use without restriction

namespace

Database of Internet IP addresses and their associated names

resolvers

Any hosts on the internet that need to look up domain name information

fully qualified host name

The local host name plus its domain name.

host file

The ASCII text files called HOSTS.TXT that associates host names with IP addresses

DNS

A hierarchal way of associating domain names with IP addresses.

dotted decimal notation

The most common way of expressing IP addresses.

time to live field

What is the field that states the maximum amount of time a packet will stay on the network before being discarded.

zeroconfig

Protocols made to simplify addressing of nodes on a TCP/IP network. This assigns a node an IP address & recognizes services without needing a DNS server.

DDNS

A program that is used by a service provider on a user's computer. It detects changes to the users IP address and updates the users DNS accordingly.

DHCP leasing

What is it called when a device will borrow an IP address temporarily while connected to the network. The length of the lease depends on server and client settings.

127 is used for a device to communicate with itself with loopback.

In IPv4 addressing, explain what is special about an address containing 127 in the first octet and how this address is used in troubleshooting.

0

In IPv4 addressing, what number is a placeholder for referring to all computers on a network

255

In IPv4 addressing, what number is for broadcast transmissions only

ARP

Computers cache the MAC to IP mappings in what kind of table to find the address locally rather than requesting the information again.

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