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COSC 4351: 1.2: IP addresses, domain names, and URLs || with 100% Errorless Answers.
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What is IP address short for? correct answers *Internet Protocol* address IP address correct answers is a computers unique address on the Internet, usually represented numerically like 198.51.100.7. - a 32 bits, divided into four 8-bit groups, each group often written as a decimal number W...

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  • August 20, 2024
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COSC 4351: 1.2: IP addresses, domain names, and URLs ||
with 100% Errorless Answers.
What is IP address short for? correct answers *Internet Protocol* address

IP address correct answers is a computers unique address on the Internet, usually represented
numerically like 198.51.100.7.

- a 32 bits, divided into four 8-bit groups, each group often written as a decimal number

What is an IP address usually written as? correct answers four numbers separated by dots.

What does each number in an IP address represent, and what is the total? correct answers 8 bits,
and 32 bits

What does the DNS server do? correct answers converts a domain name like cnn.com to an IP
address.

domain name correct answers is a name for an IP address, such as the name wikipedia.org for the
IP address 208.80.154.224; the name is easier to remember and type.

does capitalization matter in the domain name? correct answers No

DNS Sever correct answers Is the first step to contact when a computer sends a packet using a
domain name over the internet, to convert the domain name to an IP address.

What is DNS short for? correct answers Domain Name System

root servers correct answers are thirteen main DNS servers that exist in the world, and
computer's OS or an ISP keeps a reference to the root servers' IP address.
EX: 198.41.0.4 (run by Verisign), 192.228.79.201 (run by USC), 199.7.91.13 (run by Univ. of
Maryland), and 192.203.230.10 (run by NASA)

What is the first step of send an internet packet to a domain name? correct answers To look up
the IP address via a DNS server

DNS server look up correct answers A PC request a webpage from cnn.com.
The packet includes the destination IP address (for cnn.com), and also the "From" address (of the
PC) so that CNN's web server knows where to send the requested web page.

Websites have either an IP address or a domain name, but not both.
True or False correct answers False:

All websites have an IP address. A domain name provides an easy-to-remember name for an IP
address.

, cnn.com is a(n)
A. IP address
B. domain name
C. DNS correct answers B. Domain name:
A domain name provides an Easy-to-remember name for a user to reach a website.

A DNS servers' primary role is to convert ____.
A. an IP address into 32 bits.
B. an IP address to a domain name.
C. the domain to an IP address. correct answers C. the domain name to an IP address:

Given a domain name, a DNS server returns an IP address to which to send a packet.

IPv4 correct answers is the original internet protocol, has 32-bit addresses.
32 bits = 2^32 or ~4 billion unique address, which was originally believed to be more than would
ever be needed.

IPv6 correct answers The new version of the internet protocol. It uses 128-bit addresses, capable
of representing 2^128 addresses.
128-bit = 3.4*10^28

Do IPv4 and IPv6 coexist? correct answers Yes, they currently co-exist.

What is the size of an IP address in IPv4?
A. 32 bits
B. 128 bits correct answers A. 32 bits:

IPv4 provides 4 billion unique IP addresses. In 2010, 10 billion devices were connected to the
Internet with an estimate of 50 billion by 2020. IPv4 did not provide a sufficient number of
unique addresses.

IPv6 supports about how many IP addresses?
A. 100 billion
B. 3.4 x 10^28 correct answers B. 3.4x10^28:

That number is enormous, and hopefully enough to address increasing numbers of Internet
devices, for a long time

With the introduction of IPv6, devices on the Internet no longer use IPv4.
A. True
B. False correct answers B. False:
IPv4 and IPv6 are not interoperable, but mechanisms exist to allow communication between the
two protocols.

Are domain names hierarchical? correct answers Yes

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