URLs, IP Addresses and DNS

Question 1

A sequence of characters that identifies an abstract or physical resource.

Answer 1

URI (Uniform Resource Identifier)

Question 2

This identifies a resource either by location or name.

Answer 2

URI

Question 3

Identify a resource using a name which has to be unique across a namespace.

Answer 3

URN

Question 4

The most common way of identifying resources on the web.

Answer 4

URL

Question 5

Identifying a resource using its location.

Answer 5

URL

Question 6

The web identifies resources by _____.

Answer 6

Location

Question 7

This may refer to more than 1 resource over time.

Answer 7

URLs

Question 8

At minimum, URLs need a _________ and ___________.

Answer 8

Protocol and Domain Name

Question 9

this declares how the browser should communicate with the server.

Answer 9

Protocol

Question 10

The name of the website.

Answer 10

Domain Name

Question 11

Domain name can be further broken down into __________ and ___________.

Answer 11

Subdomains and top-level domain

Question 12

Usually designate a specific are of your site.

Answer 12

Subdomain

Question 13

Refers to a file, resource, or directory in the server.

Answer 13

Path

Question 14

Commonly found in the URL of a dynamic web pages.

Answer 14

Query

Question 15

Preceded by ? symbol.

Answer 15

Query

Question 16

This make up the query string.

Answer 16

Parameter

Question 17

Are key-value pairs separated by & symbol.

Answer 17

Parameter

Question 18

An optional part of URLs preceded by a :

Answer 18

Port

Question 19

A type of software connection point that usually denotes a specific type of process or service.

Answer 19

Port

Question 20

Port 21

Answer 20

File Transfer

Question 21

Port 25

Answer 21

Simple Mail Transfer

Question 22

Port 80

Answer 22

HTTP

Question 23

Port 443

Answer 23

HTTPS

Question 24

_____ stick to their conventional ports.

Answer 24

Services.

Question 25

It's common practice to avoid ports of __________________ if you are deploying your own apps.

Answer 25

well-known apps.

Question 26

An internal reference to part of a page that is sometimes called "named anchor".

Answer 26

Fragment

Question 27

Marked by # symbol

Answer 27

Fragment

Question 28

This provides an unreliable, connectionless delivery system used by machines in a network to communicate.

Answer 28

IP

Question 29

Responsible for addressing within a network, encapsulating data into datagrams, and routing datagrams from source to destination.

Answer 29

IP

Question 30

Provides a reliable, connection-oriented communication system.

Answer 30

TCP

Question 31

2 major version of IP in use.

Answer 31

IPv4 IPv6

Question 32

Numerical addresses assigned to machines in a network that must be unique within a particular namespace.

Answer 32

IP addresses.

Question 33

True or False: In the global list of public IP addresses, there are can be two machines which are assigned the same public IP addresses.

Answer 33

False

Question 34

True or False: In smaller scopes, the IP address is unique within the scope but may share an IP address with a machine in a different scope.

Answer 34

True

Question 35

IPv4 addresses are composed of _______.

Answer 35

4 8-bit numbers.

Question 36

IPv4 addresses have a total of _______ combinations that ran out in ______.

Answer 36

4.3 billion, 2011

Question 37

IPv6 addresses are composed of _________________.

Answer 37

8 4-digit hexadecimal numbers.

Question 38

IPv6 have _____ combinations.

Answer 38

~3.4 x 10^38

Question 39

When we are viewing a webpage, we are requesting resources from ___________.

Answer 39

A particular IP address.

Question 40

The hierarchical naming system for resources on the Web.

Answer 40

Domain Name System.

Question 41

The process of retrieving the IP address associated with a domain name.

Answer 41

Domain Name Resolution.

Question 42

Keeps DNS records.

Answer 42

DNS Server

Question 43

Maps of domain to IP addresses.

Answer 43

DNS Records.

Question 44

A program that is a component of a browser, OS, or other network programs.

Answer 44

DNS Client.

Question 45

It connects to DNS Servers to request records using the DNS protocol.

Answer 45

DNS Client

Question 46

Store the master copies of the DNS records.

Answer 46

Authoritative DNS Servers.

Question 47

Cache commonly requested records. If they don't have it, they make requests to other DNS Servers.

Answer 47

Recursive DNS Servers.

Question 48

Where to add domain name and associated IP address.

Answer 48

DNS registry.

Question 49

A nonprofit organization for coordination and maintenance of databases related to Internet namespaces.

Answer 49

ICANN (Internet corporation for assigned names and numbers)

Question 50

A department under ICANN that coordinates the DNS Root, IP addressing, and other IP resources.

Answer 50

IANA (Internet Assigned Numbers Authority)

Question 51

2 types of top level domains.

Answer 51

Generic TLD Country Code TLD

Question 52

Last segment of a domain name and are usually descriptive of the site.

Answer 52

Top Level Domain

Question 53

Anyone can register most __________ with little restriction. They are the most common of the TLDs.

Answer 53

Generic TLD

Question 54

TLDs restricted to a country or any dependent territory identified with a country code.

Answer 54

Country Code TLD