Lecture 3: Networks and Web Pages

Question 1

What is block styling?

Answer 1

When an element takes the entire width of the screen?

Question 2

What kind of styling does <span> use?</span>

Answer 2

inline

Question 3

What is the escape symbol used for less than (

Answer 3

&lt

Question 4

What is the escape symbol for greater than (>)?

Answer 4

&gt

Question 5

What is synchronous communication?

Answer 5

When there is a message sent, there must be feedback from the receiver in order to continue the conversation

Question 6

What asynchronous communication?

Answer 6

Messages can be sent back and forth at any time

Question 7

What does ISP stand for?

Answer 7

Internet Service Provider

Question 8

What is a channel?

Answer 8

A communications medium

ex. a router or modem

Question 9

What is a protocol?

Answer 9

Rules to be followed in the communication process

Question 10

What is point to point communication?

Answer 10

One sender, one receiver

Question 11

What is the backbone?

Answer 11

An enormous pipe that connects countries to internet

Question 12

What is WAN?

Answer 12

Wide Area Network - countries, large regions

Question 13

What is MAN?

Answer 13

Metropolitan Area Network - Cities

Question 14

What is LAN?

Answer 14

Local Area Network - Office, home

Question 15

What is the role of the client?

Answer 15

To request data

Question 16

What is the role of the server?

Answer 16

To handle and serve requests

Question 17

Can a server also be a client?

Answer 17

Yes

Question 18

Everything on the internet has an _________.

Answer 18

Address

Question 19

What is the DNS?

Answer 19

The Domain Name System

Question 20

What does the DNS do?

Answer 20

They are servers which are solely in charge of resolving hostnames into IP addresses and vice versa. They are registries

Question 21

What does IP in IP address stand for?

Answer 21

Internet Protocol

Question 22

What is an IP packet?

Answer 22

A packet of information that holds pieces or chunks of data.

Question 23

What is TCP/IP?

Answer 23

Transmission Communication Protocol/Internet Protocol

Question 24

What does the TCP/IP do?

Answer 24

It dictates how different connections are to be established and how devices are to communicate with each other.

Question 25

What is ethernet?

Answer 25

When machines are physically connected via wires

Question 26

What are topologies?

Answer 26

The way that ethernet can be physically arranged

Question 27

What do routers do?

Answer 27

They connect networks together and plan the route to follow

Question 28

What do switches do?

Answer 28

They pass traffic along connected LANs

Question 29

What is caching?

Answer 29

When a DNS finds and returns an IP address, it stores that IP address in memory so it can serve the request faster next time

Question 30

What is redundancy?

Answer 30

When one server fails on a certain level another one can take over or handle the loads of queries

Question 31

What is the system in which our operating system organizes files?

Answer 31

A hierarchical tree

Question 32

What do tags do in HTML?

Answer 32

They are used to define the structure of a web page

Question 33

When using the img tag we also need to include an _______.

Answer 33

alt tag

Question 34

What are the 3 ways CSS can be applied ?

Answer 34

1. Within the head document
2. Inline
3. Externally linked

Question 35

What format does CSS always follow?

Answer 35

element-selector {

property: value;

}

Question 36

The closer a style is to the element the stronger it is in the applying chain.

True or False?

Answer 36

True