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OS > Mid Term (Chapter 2) > Flashcards

Mid Term (Chapter 2) Flashcards

1
Q

Client-Server Architecture

A

One of the two paradigms where the host is ‘always ON’

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2
Q

P2P (Peer to Peer)

A

One of the two paradigms which the role of host and server are not fixed

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3
Q

What is a Socket

A

Programming construct whereby running processes on one machine communicate with other processes in another

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4
Q

What parameters are in a Socket

A

(IP address, Port number, Transport protocol)

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5
Q

What is Reliable

A

TCP delivers in sequence, no duplicates and no errors

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6
Q

UDP?

A

User Datagram Protocol

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7
Q

TCP?

A

Transmission Control Protocol

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8
Q

Application Layer

A

The layer which programmers can only control

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9
Q

What is the World Wide Web

A

a Structure that is built on top of the Internet

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10
Q

What are the two transport layer protocols avaible in applications

A

TCP and UDP

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11
Q

Web Pages

A

Its objects such as JPEG,PNG or GIF images all addressable by a single URL that points to the base HTML file

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12
Q

What is HTML

A

Hyper-text Markup Language(programming language)

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13
Q

Persistent Connections

A

Phone call is always open and closes when prompted to

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14
Q

Non-Persistent Connections

A

Start a phone call and the server hangs up upon completing the client request

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15
Q

Is Email asynchronous or synchronous

A

It is asynchronous

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16
Q

Web Caching

A

Having Proxy Servers act as a cache for a website

17
Q

SMTP

A

Simple Mail Transfer Protocol

18
Q

POP3

A

Post Office Protocol(Access Protocol method)

19
Q

What does POP3 not allow

A

Allow Hierarchical structure to be created on the server

20
Q

IMAP

A

Internet Mail Access Protocol

21
Q

MIME

A

Multipart Internet Mail Extensions

22
Q

What does MIME use

A

The mail to access mail via HTTP port 80

23
Q

What is telnet

A

Application Protocol that provides a bidrectional interactive text-oriented communication over TCP

24
Q

Cookies what are they?

A

The memory saved to customize experience for users

25
Q

Which protocols are pull protocols

A

POP3 and IMAP

26
Q

Which protocols are push protocols

A

SMTP

27
Q

DNS means

A

Domain Name System

28
Q

What is an example of a hostname

A

www.google.com

29
Q

What is an example of IP

A

172.217.5.13

30
Q

Host/Mail Server Aliasing

A

DNS provides this as to simplify host names for users

31
Q

Domain

A

A network under some single administrative authority

32
Q
A

OS (2 decks)

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