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Intro to Networks > Module 1 > Flashcards

Module 1 Flashcards

1
Q

What is Packet Tracer?

A

A program used to simulate creating and testing networks on your computer

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2
Q

What are the 6 steps to obtain and install Cisco Packet Tracer?

A

1) Log into your Cisco Networking Academy “I’m Learning” page
2) Select Resources
3) Select Download PT
4) Select the version of PT your require
5) Save the file to your computer
6)Launch the PT install program

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3
Q

What are the 3 main menus of PT

A

1) add devices and connect them
2) select, delete, inspect, label and group components within your network
3) manage your network

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4
Q

What is a Hosts?

A

All computers connected to a network and participates directly in network communication

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5
Q

What are 2 other names for Hosts?

A

End Devices and Clients

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6
Q

What is an IP Address

A

Internet Protocol Address identifies the host and the network to which the host is attached.

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7
Q

What is a server?

A

Computers w/ software that allow them to provide information

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8
Q

What are 3 common types of software?

A

Email, web and File

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9
Q

What are the advantages of peer-to-peer networking?

A

1) Easy to set up
2) Less Complex
3) Lower Cost because network devices and dedicated servers may not be required
4) Can be used for simple tasks such as transforming files and sharing printers

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10
Q

What are the disadvantages of peer-to-peer networking?

A

1) No centralized admin
2) Not as secure
3) Not Scalable
4) All devices may act as both client and servers which can slow their performance

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11
Q

When initiating communication what address is used to specify where to deliver the message?

A

The address of the Destination end device

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12
Q

What do intermediary devices do?

A

Connect the individual end devices to the network

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13
Q

What is a repeater?

A

Regenerate and retransmit communication signals

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14
Q

True or False? All intermediary devices perform the function of a repeater?

A

True

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15
Q

What are some functions of intermediary devices

A

1) regenerate and retransmit com signals
2) maintain info about what pathways exist through the network and internetwork
3) Notify other devices of errors and com failures
4) Direct data along an alternate pathways when there is a link failure
5) Classify and direct messages according to priorities
6) Permit or deny the flow of data, based on security settings

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16
Q

What are the 3 types of media used to interconnect devices on modern networks?

A

Copper, fiber optic and wireless

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17
Q

What are 3 connection types

A

Network Interface Card, physical port and interface

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18
Q

Define interface

A

Specialized ports on a networking device that connect to individual networks.

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19
Q

Define NIC

A

Network Interface Card connects the end device to the network

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20
Q

Define SOHO

A

small office and home office allow people to work from home or a remote office connecting to a corporate network , often used by self-employed workers

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21
Q

Define internet

A

“Network of networks” or a collection of interconnected private and public networks

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22
Q

What is P2P?

A

Peer-to-peer is when computers function as both server and client on the network

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23
Q

What are the 2 most common type of network infrastructures?

A

WAN and LAN

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24
Q

Define LAN

A

A local area network is a network infrastructure that provides access in a small geographic area

25
Q

Define WAN

A

A wide area network is a network infrastructure that provides access to other networks over a wide geographical area

26
Q

To what do LANs provide access?

A

Internal end devices and intermediary devices

27
Q

Who typically manages a WAN

A

Service providers(SP’s) and Internet Service provider (ISP)

28
Q

What is intranet?

A

A private connection of WANs and LANs that belong to an organization

29
Q

What is an extranet?

A

Secure and safe access to individuals who work for a different r organization but require access to the organizations data

30
Q

What is cable internet?

A

Transmits data signal over the same cable as television. It provides high bandwidth, high availability and an always-on connection.

31
Q

What is DSL?

A

Digital Subscriber Line is a high bandwidth, high availability and always-on connection over telephone line.

32
Q

What is ADSL?

A

Same as DSL except download speed is faster than upload speed

33
Q

What is cellular?

A

Uses cellphone network. Performance is limited by the capabilities of the phone and the cell tower it reaches

34
Q

What is required for satellite connection?

A

A satellite dish and clear line of site

35
Q

What is dial-up?

A

An inexpensive option that uses phone line and a modem. Low bandwidth and not good for large data transfer’s.

36
Q

What are the 5 connection types?

A

Cable, DSL , Cellular, Satellite, and dial-up

37
Q

What are 4 types of business Internet options?

A

Dedicated Leased Line, Metro Ethernet, Business DSL, Satellite

38
Q

What is a dedicated leased line?

A

A reserved circuit that connect geographically separate offices for private voice and/or data

39
Q

What is SDSL?

A

Same as DSL but usually for businesses and provides uploads and downloads at same high speeds

40
Q

What is a converged network?

A

Carry multiple services (data, telephone and video) on one network

41
Q

What are 4 basic characteristics that architects must address to meet user expectations?

A

1) fault tolerance
2) scalability
3) QoS
4) Security

42
Q

What is a fault tolerant network?

A

Limits the number of affected devices during failure

43
Q

What is redundancy?

A

Having multiple paths to a destination

44
Q

What’s an important characteristic of scalability?

A

Additional users and while networks can be connected w/o degrading performance for existing users

45
Q

What is the focus of QoS?

A

To prioritize time-sensitive traffic like voice calls

46
Q

What are 2 types of network security concerns?

A

Network infrastructure security and information security

47
Q

What are the 3 requirements in order to achieve the goals of network security?

A

Confidentiality, Integrity and Availability

48
Q

Define Data Confidentiality?

A

Only the intended and authorized recipients can access and read data

49
Q

Define Data Integrity?

A

Assures users that the info hasn’t been altered in transmission from origin to destination.

50
Q

Define Data availability?

A

Timely and reliable access to data services for authorized users

51
Q

What are the 4 primary cloud types?

A

Public clouds, private clouds, hybrid clouds and community clouds

52
Q

What are the basic security components for a home or small office network?

A

Antivirus, anti-spyware and firewall filtering

53
Q

What are the security components of larger and corporate networks?

A

Dedicated firewall systems, ACL, IPS, VPN

54
Q

Define Physical Topology

A

Illustrates the physical location of intermediary devices and cable installation

55
Q

Define Logical Topology

A

Illustrates devices, ports and the addressing scheme of the network

56
Q

Name 3 of the organizations that help maintain structure on the internet(

A

IETF, ICANN, IAB

57
Q

Define control plane?

A

Regarded as the brains and is processed by the CPU. Makes forwarding decisions.

58
Q

Define Data plane?

A

Also called the forwarding plane which is the switch fabric connecting the various network ports on a device

Intro to Networks (5 decks)

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