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1st Sem > ST 1 - 3 > Flashcards

ST 1 - 3 Flashcards

1
Q

a collection of individual networks, connected by intermediate networking devices, that functions as a single large network.

A

internetwork

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2
Q

evolved around the PC revolution

A

Local-area networks (LANs)

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3
Q

interconnect LANs with geographically dispersed users to create connectivity

A

Wide-area networks (WANs)

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4
Q

server is composed of

A
  1. workstation
  2. desktop
  3. server
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5
Q

Functional roles

A
  1. data storage
  2. application host
  3. geo processing
  4. spatial data management
  5. website host
  6. email
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6
Q

Sending storage data over the company network can seriously slow network speeds, which will affect applications such asgenerally refers to storage devices that can be attached to existing corporate networks e-mail and Internet access

A

NAS (network attached storage)

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7
Q

network built exclusively for storage devices, servers, backup systems and so forth

A

Storage Area Network (SAN)

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8
Q
  • RAID=Redundant Array of Inexpensive Disks
  • Hardware or software implementation
  • Level 0,1,5,10
  • Minimum four disks on server
  • Hard disk types
  • SCSI, IDE, etc.
  • Hot-swappable
A

Data Storage: Fault Tolerance

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9
Q

RAID

A

Redundant Array of Inexpensive Disks

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10
Q

RAIS

A

Redundant Array of Inexpensive Servers

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11
Q

Software host server advantages and disadvantages

A
  • advantage- one installation, reduced maintenance and re-installations
  • Disadvantage- high server hit (cost), more network congestion, can run slower
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12
Q

License server advantages and disadvantages

A
  • Advantage: one initial installation. Clients install from your install
  • Disadvantage: clients are responsible for actual software installation/maintenance
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13
Q
  • ArcGIS for Server software resides on server with GeoProcessing Services running
  • Clients have the desktop or workstation application installed
  • Large tasks are processed by the server via web interface
  • Can more fully utilize available processors and RAM
A

GeoProcessing

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14
Q
  • More RAM and more CPU cores (yes)
  • But more importantly, a different architecture in RAM and CPU usage/allocation
A

Why are Servers Faster?

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15
Q
  • nVidia leads, but it all started with the demand for smooth video rendering by the gaming industry
  • Graphics cards and processing
  • Processing graphics is an intensive FLoating-point OPeration (FLOP) that must be done quickly
  • Geoprocessing can also be an intensive FLOP (but does not need to be done quite so fast)
  • In some cases, a server will not be faster if a good graphics card is not available
A

GPU Processing

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16
Q
  • SDE=Spatial Database Engine
  • Requires DBMS
  • ArcSDE
  • Spatial library organized with a RDBMS
A

Spatial Data Management

17
Q
  • Overview of structure on host server
  • Client access (https://giscenter.isu.edu
A

Internet Information Server
(IIS)

18
Q

Serving maps

A

ArcGIS for Server

19
Q

Types of Server Hardware

A
  1. glorified desktops
  2. standard rack-based
  3. blade
  4. ISU’s Research Data Center
20
Q

addresses data integrity (information assurance).

A

Fault tolerance

21
Q

Proactive security measure address

A

data security

22
Q

transfer files from one computer (or host) on the Internet to another

A

FTP refers to the File Transfer Protocol

23
Q

a host that acts as a repository of information, much like a conventional library

A

Archive Site

24
Q

Do not allow write access from remote clients anywhere on your system

A

System Administration

25
Q
  • Data folder for clients
  • Data liability policy
  • Use of Temp folders
  • System Administration:
  • Security
A

Data information

26
Q
  • Web access is principal security threat
  • FTP is a primary avenue for intrusion
  • Dynamic IP addressing
A

Security

27
Q

Proactive Applying Security to Your Server

A
  1. Service packs
  2. Updating anti-virus dictionaries
  3. Disabling and uninstalling FTP
  4. Firewalls
28
Q

Reactive Applying Security to Your Server

A

TCP/IP exclusion

29
Q

Backup your data

A
  1. Mission critical
  2. Critical
  3. Non-critical data
30
Q

Professional Hints and Tips

A
  1. Email is not a text SMS…
  2. Not every server is secure
  3. Too good to be true
  4. Jack of all passwords
  5. Download at your own risk
  6. Your data is your currency
31
Q

application that runs on a personal computer and relies on a server to perform some operations.

A

a client

32
Q

Browsers examples

A
  • Internet Explorer
  • Mozilla Firefox
  • Safari
33
Q

Web exchange utilities examples

A
  • Fetch
  • FTP
  • Terminal applications
34
Q

A computer or device on a network that manages network resources.

A

server

35
Q

a computer and storage device dedicated to storing files. Any user on the network can store files on the server.

A

file server

36
Q

a computer that manages one or more printers

A

print server

37
Q

a computer system that processes database queries.

A

database server

38
Q

is a computer that manages network traffic.

A

network server

39
Q

servers can be physical adn application

A

true

1st Sem (16 decks)

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