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

sequence of characters that identifies an abstract or physical resource

identifies a resource either by location or name

Answer 5

Uniform Resource Identifier

Question 6

identify a resource using a name

name has to be unique across the name space

Answer 6

Uniform Resource Name

Question 7

The most common way of identifying resources on the web

identifies a resource using its location

Answer 7

Uniform Resource Locator

Question 8

TRUE OR FALSE
URLs may only refer to 1 resource over time

Answer 8

FALSE

Question 9

at minimum, what URLs need

Answer 9

Protocol and Domain name

Question 10

what is the highlighted part of URL

https://www.google.com/

Answer 10

Domain

Question 11

what is the highlighted part of URL

https://www.google.com/

Answer 11

Protocol

Question 12

declares how the browser should communicate with the server

Answer 12

Protocol

Question 13

name of your websites

Answer 13

domain name

Question 14

Domain name can be broken down into:

Answer 14

Subdomains and top-level domain

Question 15

what is the highlighted part of URL

https://www.google.com/

Answer 15

Top-level domain

Question 16

what is the highlighted part of URL

https://classroom.google.com/

Answer 16

subdomain

Question 17

usually designate a specific areas of your site

Answer 17

subdomains

Question 18

refers to a file, resource, or directory in the server

Answer 18

Path

Question 19

what is the highlighted part of URL

https://www.somewebsite.com/index.html

Answer 19

Path

Question 20

commonly found in the URL of dynamic Web pages

Answer 20

Query

Question 21

query is preceded by:

Answer 21

?

Question 22

what is the highlighted part of URL

https://sais.up.edu.ph/psp/ps/?cmd=login

Answer 22

Query

Question 23

makeup the query string

key-value pairs

Answer 23

Parameter

Question 24

Parameters are separated by:

Answer 24

&

Question 25

optional part of URLs not explicitly included in URL

Answer 25

Port

Question 26

Ports are preceded by:

Answer 26

:

Question 27

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

Answer 27

port

Question 28

common default ports

Answer 28

21 - File Transfer 25 - Simple Mail Transfer 80 - HTTP 443 - HTTPS (HTTP with TLS)

Question 29

TRUE OR FALSE It is common practice to use ports of well-known apps if you're deploying your own apps

Answer 29

FALSE

Question 30

what is the highlighted part of URL https://ics.uplb.edu.ph**:80**

Answer 30

Port

Question 31

internal reference to a part of a page

Answer 31

Fragment

Question 32

Fragments are sometimes called

Answer 32

named anchor

Question 33

Fragments are marked by:

Answer 33

#

Question 34

what is the highlighted part of URL https://sais.up.edu.ph/psp/ps/**#enlisted**

Answer 34

Fragment

Question 35

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

Answer 35

User datagram protocol

Question 36

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

Answer 36

Internet Protocol

Question 37

IP is built on top of

Answer 37

TCP

Question 38

provides a reliable, connection-oriented communication system

Answer 38

TCP

Question 39

2 major versions of IP

Answer 39

IPv4 IPv6

Question 40

numerical addresses assigned to machines in a network

Answer 40

IP addresses

Question 41

TRUE OR FALSE IP addresses must be unique everywhere

Answer 41

FALSE

Question 42

IPv4 addresses are composed of

Answer 42

4 8-bit numbers

Question 43

iPv6 are composed of

Answer 43

8 4-digit hexadecimal numbers

Question 44

hierarchical naming system for resources on the web

Answer 44

Domain Name System

Question 45

what is the highlighted part of URL https://**sais.up.edu.ph**/psp/ps/?cmd=login

Answer 45

DNS

Question 46

process of retrieving the IP address associated with a domain name

Answer 46

Domain Name Resolution

Question 47

keeps the DNS Records

Answer 47

Domain Name System Servers (DNS Servers)

Question 48

maps of domain names to IP addresses

Answer 48

DNS Records

Question 49

program that is component of a browser, OS or other network programs connects to DNS Servers to request records using DNS Protocol

Answer 49

DNS Client

Question 50

store the master copies of the DNS Records

Answer 50

Authoritative DNS Servers

Question 51

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

Answer 51

Recursive DNS servers

Question 52

where domain name and IP address are added upon payment of lease to a DNS registrar

Answer 52

DNS registry

Question 53

non profit organization responsible for coordination and maintenance of databases related to Internet namespaces

Answer 53

Internet Corporation for Signed Names and Numbers (ICANN)

Question 54

department under ICANN that coordinates the DNS root, IP addressing, and other UP resources

Answer 54

Internet Assigned Numbers Authority (IANA)

Question 55

governed by ICANN last segment of domain name

Answer 55

top-level domains

Question 56

2 types of TLDs

Answer 56

Generic Country Code

Question 57

anyone can register most generic TLDs with little restriction

Answer 57

Generic TLD

Question 58

Generic TLD examples

Answer 58

com org net edu gov mil

Question 59

TLDs restricted to a country or any independent territory identified with a country Code

Answer 59

Country Code TLD

Question 60

examples of Country Code TLD

Answer 60

ph jp cn hk

Question 61

what is the highlighted part of URL https://sais.**up**.edu.ph/psp/ps/?cmd=login

Answer 61

subdomain of ph