03 - URLs, IP Addresses, and DNS

Question 1

application layer

Answer 1

dns protocol
http, https

Question 2

transport layer

Answer 2

udp, tcp

Question 3

internet layer

Answer 3

internet protocol

Question 4

network access layer

Answer 4

network access

Question 5

URI

Answer 5

Uniform Resource Identifier

Question 6

sequence of characters that identifies an abstract or physical resource

Answer 6

URI

Question 7

URI identifies a resource by either ___ or ____

Answer 7

location
name

Question 8

URN

Answer 8

Uniform Resource Name

Question 9

URL

Answer 9

Uniform Resource Locator

Question 10

most common way of identifying resources on the web

Answer 10

URL

Question 11

At minimum, URLs need a ___ and ___

Answer 11

protocol
domain name

Question 12

declares how the browser should communicate with the server

Answer 12

protocol

Question 13

name of your website

Answer 13

domain name

Question 14

domain names can be broken down into two

Answer 14

subdomains
top-level domain

Question 15

designates a specific area of your site

Answer 15

subdomain

Question 16

refers to a file, resource or directory in the server

Answer 16

path

Question 17

commonly found in the URL of dynamic web pages

Answer 17

query

Question 18

query is preceded by the __ symbol

Answer 18

?

Question 19

key-value pairs separated by the & symbol

Answer 19

parameter

Question 20

type of software connection point, preceded by :

Answer 20

port

Question 21

common default ports (4)

Answer 21

21 : file transfer
25 : simple mail transfer
80 : http
443 : https

Question 22

internal reference to part of a page, marked by a # symbol

Answer 22

fragment

Question 23

fragments are sometimes called

Answer 23

named anchor

Question 24

Identify the domain, port, query, fragment based from this link

https://www.youtube.com/watch?v=dQw4w9WgXcQ

Answer 24

Domain: www.youtube.com
Port: 443
Query: ?v=dQw4w9WgXcQ
Fragment: N/A

Question 25

provides an unreliable, connectionless delivery system used by machines

Answer 25

internet protocol

Question 26

2 major versions of IP

Answer 26

IPv4 IPv6

Question 27

IPv4 addresses are composed of ____ numbers

Answer 27

4 8-bit

Question 28

IPv6 addresses are composed of ___ numbers

Answer 28

8 4-digit hexadecimal

Question 29

hierarchical naming system for resources on the Web

Answer 29

domain name system

Question 30

process of retrieving the IP address associated with a domain name

Answer 30

domain name resolution

Question 31

maps of domain names to IP addresses

Answer 31

dns records

Question 32

connects to dns servers to request records using the dns protocol

Answer 32

dns client

Question 33

stores the master copies of the dns records

Answer 33

authoritative dns servers

Question 34

cache commonly requested records

Answer 34

recursive dns servers

Question 35

how do you put your dns record in a dns server?

Answer 35

pay a lease to a dns registrar to add your domain name and associated Ip address to the DNS registry

Question 36

nonprofit organization responsible for coordination and maintenance of databases related to internet namespaces

Answer 36

internet corporation for assigned names and numbers (icann)

Question 37

department under ICANN that coordinates DNS root, ip addressing, and other ip resources

Answer 37

internet assigned numbers authority (IANA)

Question 38

the last segment of a domain name

Answer 38

top-level domains

Question 39

2 types of TLDs

Answer 39

generic country code

Question 40

most common of the tlds; anyone can register with little restriction

Answer 40

generic tld

Question 41

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

Answer 41

country code tld

Question 42

Identify the domain, subdomain, and top-level domain of: http://ics.uplb.edu.ph

Answer 42

tld: ph subdomain of ph: edu subdomain of edu: uplb subdomain of uplb: ics domain: ics.uplb.edu.ph