Network + test Ch6

What is the range of decimal values in each of the four groups of an IPv4 address?

0 to 255

By convention, most network administrators give the LAN-side NIC on the default gateway the lowest host address in the network, usually the host ID of ___________________

1

Which IP address is a private IP address?

10.164.19.5

What is the binary equivalent of the decimal value 151?

10010111

What is the binary equivalent of the decimal value 97?

1100001

If you barrow 4 bits in a class C network. how many usable host will be on each subnet

14

Which port is used to receive e-mail messages from e-mail servers (IMAP4)?

143

what is the first usable host address on the network 192.168.5.32/28

192.168.5.33

Which IP address is a public IP address?

198.192.100.3

Which IP address is valid for an individual host expressed in dotted decimal notation?

215.233.32.91

Which subnet mask is an example of classless subnetting?

255.255.240.0

Which formula would you use to arrive at the number of hosts on a subnet?

2x - 2, where x represents the number of zeroes in the subnet mask

Which formula would you use to calculate the number of new subnets?

2y , where y is the number of bits you add to the subnet mask

How many binary digits are in an IPv4 address?

32

How long is a subnet mask?

32 bits

To make IP addresses easier for humans to use, the 32-bit binary value is broken down into ____________________ groups of eight, separated by periods, or dots.

4

To show Windows' current ARP cache, open a command line and type ________ ______.

65535

How many subnets can you create if you barrow 3 bits in a class C network

8

Which port do HTTP Web servers use?

80

All DHCP clients are designed to generate an ___ address automatically if they do not receive a response to a DHCP Discover message.

APIPA (Automatic Private IP Addressing)

The Regional Internet Registry (RIR) for North America is called the ____________________. (Use acronym.)

ARIN

___________________ is how a TCP/IP network figures out the MAC address based on the destination IP address. (Use acronym.)

Address Resolution Protocol (ARP)

Which statement about subnet masks is true?

All machines on the same network have the same subnet mask.

Which method of sending a packet allows every computer on the LAN to hear the message?

Broadcast

"If the first decimal value of an IP address is between 128 and 191, to what IP class does the network belong?"

Class B

Which statement best describes a Class E address ID?

Class E is considered to be experimental.

CompTIA and many technicians use the term ____________________ to describe the traditional class blocks.

Classful

Which tool automatically assigns an IP address whenever a computer connects to the network?

DHCP

DHCP stands for

Dynamic Host Configuration Protocol

What is a better known name for dynamic IP addressing?

Dynamic Host Configuration Protocol (DHCP)

What is the universal MAC address for broadcast?

FF-FF-FF-FF-FF-FF

"When a computer gives itself an Automatic Private IP Address (APIPA), it also includes a valid default gateway address."

False

"When you want to be positive that the data moving between two systems gets there in good order, use a connectionless application."

False

Systems that use static IP addressing can never have DHCP problems.

False

The Internet Protocol (IP) works at the Link layer.

False

The Link layer is the most important part of the TCP/IP protocol suite.

False

The part of the IP address that is the same for all computers on a network is called the host ID.

False

User Datagram Protocol (UDP) is a connection-oriented protocol.

False

Using class blocks enables a much more efficient use of IP addresses compared to subnetting.

False

Which protocol uses TCP as its transport layer protocol?

HTTP

The ____________________ was formed to distribute IP addresses through ISPs to those who need them. (Use acronym.)

IANA (Internet Assigned Numbers Authority)

For logical addressing to work, no two computers on the same network may have the same ______ ______________.

IP address

The network ID and the host ID are combined to make a host's ____ ________________.

IP address

To make a DHCP relay-capable device work, you must give the relay the IP address of the real DHCP server, also known as the ____ ________________ address.

IP helper

The world is moving to a newer, longer type of IP address called ____________________.

IPv6 (Internet Protocol version 6)

Which method of sending a packet allows a single computer to send a packet to a group of interested computers?

Multicast

To what layer of the OSI model does the TCP/IP model's Internet layer roughly correspond?

Network

What is the cornerstone of subnetting?

Subnet mask

Which protocol is connection-oriented?

TCP

What is the de facto protocol suite of the Internet?

TCP/IP

What network protocol do Apple systems use today?

TCP/IP

"When a DHCP client boots up, it automatically sends out a special DHCP Discover message using the broadcast address."

True

"When a technician installs a range of IP addresses, this is called a DHCP scope."

True

Domain Name System (DNS) uses the User Datagram Protocol (UDP).

True

Subnet masks are always 32 binary digits long.

True

The first binary octet of a Class C IP address always begins with 110 (110xxxxx).

True

Transmission Control Protocol (TCP) chops up data into segments.

True

Which protocol do Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) use?

UDP

Which method of sending a packet allows one computer to send a message directly to another user?

Unicast

The router interface that connects the LAN to the router is known as the ________________ ___________________.

default gateway

Linux can use the deprecated ifconfig command, but a better tool is

dhclient

Having a server program running on a system that automatically passes out all the IP information to systems as they boot up on or connect to a network is called ____________________ addressing.

dynamic

A Class C network block uses the __________ octets to define only the network ID.

first three

A DHCP ____________________ is set for a fixed amount of time, often one to eight days.

lease

The special address 127.0.0.1 is known as the _________ address

loopback

No individual computer can have an IP address that ends with 0 because that is reserved for the ___________________.

network ID

Routers direct network traffic by looking for a match to the _______________ ____ of the destination device in their routing tables.

network ID

Most network folks represent subnet masks using special shorthand: a / character followed by a number equal to the number of ____________________ in the subnet mask.

ones

What command can you use to tell a device to send packets to itself?

ping 127.0.0.1

What command would you run from a Windows command line to test a computer's network stack?

ping 127.0.0.1

To organize individual LANs into a larger network, every TCP/IP LAN that wants to connect to another TCP/IP LAN must have a connection using a ________________.

router

Built into a router is a(n) ________________ __________________, the map that tell the router what interface is associated with each destination network.

routing table

When a technician installs a range (or pool) of IP addresses, this is called a DHCP ____________________.

scope

____________________ addressing means typing all of the IP information into each of your hosts.

static

A(n) ____________ ________ (if viewed in binary) is nothing more than a string of ones (representing the network bits) followed by some number of zeroes (representing the host bits), always totaling exactly 32 bits, typed into every TCP/IP host.

subnet mask