Update 2025-2026
Todays present internet is a vast collection of? - Answers Thousands of networks and their
attached devices.
The internet began as? - Answers ARPANET during the 1960s
What connected University's, government, and research sites - Answers One high-speed
backbone, capable of supporting 56kbps.
To support the internet and all its services, many - Answers Protocols are necessary
Some of the Internets protocols include? - Answers Internet Protocol (IP), Transmission Control
Protocol (TCP), Address Resolution Protocol (ARP), Dynamic Host Configuration Protocol
(DHCP) and Network Address Translation (NAT)
Recall that the internet with all its protocols follows the? - Answers TCP/IP protocol suite
(Internet model)
An application, such as e-mail, resides? - Answers At the highest layer
A transport protocol, such as TCP, resides? - Answers At the transport layer.
The internet Protocol (IP) resides - Answers At the internet or network layer.
A particular media and its framing resides - Answers At the network access (or data link) layer.
What does the IP prepare for transmission across the internet. - Answers A packet
The IP header is encapsulated onto - Answers A transport data packet
The IP packet is transported to the next layer where? - Answers Further network information is
encapsulated onto it.
There are two version of IP - Answers Version 4 (IPv4) and Version 6 (IPv6)
What is IPv4? - Answers A router, makes routing decision based on the 32-bit destination
addresses.
May have to fragment the datagram into smaller datagrams using fragment offset.
All devices connected to the Internet have a? - Answers 32-bit IP address.
Think of IP addresses as a? - Answers Logical address (Possibly Temporary)
While the 48-bit address on every NIC is the? - Answers Physical, or permanent address.
, Computers, networks, and routers use the - Answers 32-bit binary address, but a more readable
form is the dotted decimal notation.
What is an example of a 32-bit binary address? - Answers 10000000 10011100 00001110
00000111
Translates to 128.156.14.7 in dotted decimal notation
When IP addresses were originally created they were called - Answers classful addresses, that
is each IP fell into particular class.
What does a particular IP class address have unique? - Answers Network address size and a
unique host address size.
There are basically five types of IP addresses. - Answers Classes A, B, C, D, E
Class A has a beginning bit pattern - Answers 0, 128 addresses (7 Bits)
Class B has a beginning bit pattern - Answers 10, 16,384 addresses (14bits)
Class C has a beginning bit pattern - Answers 110, 2,097,152 addresses (21 bits)
Class D has a beginning bit pattern - Answers 1110, Multicast address
Class E has a beginning bit pattern - Answers 1111 , Reserved addresses
Class A addresses are in the range? - Answers 0 - 127
Class B addresses are in the range? - Answers 128-191
Class C addresses are in the range? - Answers 192 - 223
Class D addresses are in the range? - Answers 224-239
Class E addresses are in the range? - Answers 240 - 255
By using subnet masking? - Answers You can break the host ID portion of the address into a
subnet ID and host ID.
Ex. Subnet mask 255.255.255.0 applied to a class B address will break the Host ID (16 bits) into
8-bit subnet ID and 8-bit host ID
In todays world IPs are classless companies will get IPs from - Answers Internet service
provider (ISP)