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Network+ Exam Prep > 1.1-1.3 > Flashcards

1.1-1.3 Flashcards

1
Q

Local Area Network (LAN)

A

Cover a small geographic area, like an office.

Typically uses wires to connect systems together.

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2
Q

Wide Area Network (WAN)

A

is a group of LANs that are geographically isolated, but are connected to form a large internetwork.

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3
Q

Metropolitan Area Network (MAN)

A

Covers an area as small as a few city blocks or as large as an entire metropolitan city. MANs are typically owned and managed by a city as a public utility.

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4
Q

r

is a group of LANs that are geographically isolated, but are connected to form a large internetwork.

A

Wide Area Network (WAN)

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5
Q

Controller Area Network (CAN)

A

robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other w/o a host computer.

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6
Q

It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles

A

Controller Area Network (CAN bus)

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7
Q

What is the difference between Physical and Logical Topology?

A

The physical topology -the way the network is wired. The logical topology -the way messages are sent.

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8
Q

Bus Topology

A
  • A device called a terminator is placed at both ends of the trunk cable.
  • Signals travel from one node to all other nodes.
  • It can be difficult to isolate cabling problems.
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9
Q

Ring Topology

A
  • A continuous ring.
  • Isolating problems can require going to several physical locations along the topology.
  • A malfunctioning node or cable break can prevent signals from reaching nodes further along on the ring.
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10
Q

Star Topology

A

All network connections are located in a single place, which makes it easy to troubleshoot and reconfigure.

  • Nodes can be added to or removed from the network easily.
  • Cabling problems usually affect only one node.
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11
Q

Mesh Topology

A

created using point-to-point connections. This increases the network’s fault tolerance because alternate paths can be used when one path fails.

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12
Q

Two variations of mesh topologies exist:

A

Partial Mesh—Some redundant paths exist.

Full Mesh—Every node has a point-to-point connection with every other node.

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13
Q

OSI Model Mnemonics Layer 7—>>Layer 1

A

Application All

Presentation People

Session- Seem

Transport- To

Network- Need

Data Link- Data

Physical- Processing

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14
Q

OSI Model Mnemonics Layer 1 —>> Layer 7

A

Please- Physical

Do- Data

Not- Network

Throw- Transport

Sausage- Session

Pizza- Presentation

Away- Application

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15
Q

OSI Model Benefits

A
  • Provides a common language and reference point for network professionals
  • Aids in troubleshooting
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16
Q

Application (Layer 7)

A

Integrates network functionality into the host operating system by enabling communication between network clients and services

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17
Q

Protocols (aka services) typically associated with the Application layer include: (5)

A

HTTP

FTP

TFTP

Telnet

SNMP

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18
Q

Presentation (Layer 6) presents, data…

A

in a compatible form for the Application layer

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19
Q

r

Integrates network functionality into the host operating system and enables communication between network clients and services

A

Application (Layer 7)

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20
Q

r

  • Management of multiple sessions (each client connection is called a session).
  • Assignment of a session ID number to each session to keep data streams separate.
A

Session layer functions include:

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21
Q

The Presentation layer ensures:

A
  • Formatting and translation of data between systems.
  • Encapsulation of data into message envelopes by encryption and compression. Restoration of data by decryption and decompression.
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22
Q

Session (Layer 5)

A

manages the setup, maintenance, and teardown of communication.

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23
Q

Transport (Layer 4)

A

provides a transition between the upper and lower layers of the OSI model

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24
Q

Session layer functions include:

A
  • Management of multiple sessions (each client connection is called a session).
  • Assignment of a session ID number to each session to keep data streams separate.
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25
Q

r

End-to-end flow control.

Port and socket numbers.

Segmentation, Sequencing, and combination.

A

Transport layer functions include:

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26
Q

Transport layer functions include:

A

End-to-end flow control.

Port and Socket numbers.

Segmentation, Sequencing

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27
Q

r

Determines where data should be sent by using a routing protocol that factors the number of hops in the path, link speed, and link reliability, to select the optimal path

A

Network (Layer 3)

28
Q

Network (Layer 3)

A

Determines where data should be sent by using a routing protocol that factors the number of hops in the path, link speed, and link reliability, to select the optimal path

29
Q

r

provides a transition between the upper and lower layers of the OSI model

A

Transport (Layer 4)

30
Q

At the Network layer, data segments are called.

A

packets

31
Q

At the Data Link layer, data segments are called

A

-Frames.

32
Q

At the Transport layer, data is referred to as

A

segments.

33
Q

r

segments.

A

At the Transport layer, data is referred to as

34
Q

r

packets

A

At the Network layer, data segments are called.

35
Q

Data Link (Layer 2) defines rules and procedures..

A

for hosts as they access the Physical layer. And is further broken down into; Logical Link Control (LLC), Media Access Control (MAC)

36
Q

Protocols at the Physical layer identify:

A

-Specifications for cables and connectors.

37
Q

r

  • -Switches
  • Bridges
  • Network Interface Cards (NIC)
  • WAPs

Function at which Layer of the OSI Model

A

Data Link (Layer 2)

38
Q

r

defines the rules and procedures for hosts as they access the Physical layer. And is further broken down into; Logical Link Control (LLC), Media Access Control (MAC)

A

Data Link (Layer 2)

39
Q

r

sets standards for sending and receiving electrical signals between devices.

A

Physical (Layer 1)

40
Q

Data Link Layer defines how the physical network devices are identified…

A

by defining a unique MAC address

41
Q

r

The physical network devices are identified by defining a unique MAC address is a function of

-How devices control the rate of data transmission between hosts (flow control).

A

Data Link Layer Rules & Procedures define how:

42
Q

Physical (Layer 1) sets standards for…

A

…sending and receiving electrical signals between devices.

43
Q

r

Cover a small geographic area, like an office. Typically uses wires to connect systems together.

A

Local Area Network (LAN)

44
Q

At the Physical layer, data segments are called

A

-Bits

45
Q

Which OSI Layer determines how digital data (bits) is converted to electric pulses, radio waves, or pulses of light and moved across network cables.

A

OSI Physical Layer 1

46
Q

r

-Bits.

A

At the Physical layer, data segments are called

47
Q

r

  • Specifications for cables and connectors.
  • The physical topology.
A

Protocols at the Physical layer identify:

48
Q

r

Covers an area as small as a few city blocks to as large as an entire metropolitan city. Typically owned and managed by a city as a public utility.

A

Metropolitan Area Network (MAN)

49
Q

r

robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other w/o a host computer.

A

Controller Area Network (CAN)

50
Q

r

Controller Area Network (CAN bus)

A

It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles

51
Q

r

The physical topology -the way the network is wired. The logical topology -the way messages are sent.

A

What is the difference between Physical and Logical Topology?

52
Q

r

  • Signals travel from one node to all other nodes.
  • A device called a terminator is placed at both ends of the trunk cable.
  • It can be difficult to isolate cabling problems.
A

Bus Topology

53
Q

r

  • A continuous ring.
  • Isolating problems can require going to several physical locations along the topology.
  • A malfunctioning node or cable break can prevent signals from reaching nodes further along on the ring.
A

Ring Topology

54
Q

r

All network connections are located in a single place, which makes it easy to troubleshoot and reconfigure.

-Nodes can be added to or removed from the network easily. -Cabling problems usually affect only one node.

A

Star Topology

55
Q

r

created using point-to-point connections. This increases the network’s fault tolerance because alternate paths can be used when one path fails.

A

Mesh Topology

56
Q

r

Application - All

Presentation People

Session- Seem

Transport- To

Network- Need

Data Link- Data

Physical- Processing

A

OSI Model Mnemonics Layer 7—>>Layer 1

57
Q

r

Please Physical

Do- Data

Not- Network

Throw-Transport

Sausage- Session

Pizza- Presentation

Away- Application

A

OSI Model Mnemonics Layer 1 —>> Layer 7

58
Q

r

  • Provides a common language and reference point for network professionals
  • Aids in troubleshooting
A

OSI Model Benefits

59
Q

r

HTTP

FTP

TFTP

Telnet

SNMP

A

Protocols (aka services) typically associated with the Application layer include: (5)

60
Q

r

presents, data in a compatible form for receipt by the Application layer or the destination system.

A

Presentation (Layer 6)

61
Q

r

  • Formatting and translation of data between systems.
  • Encapsulation of data into message envelopes by encryption and compression. Restoration of data by decryption and decompression.
A

The Presentation layer ensures:

62
Q

r

manages the setup, maintenance, and teardown of communication.

A

Session (Layer 5)

63
Q

What devices operate at Layer 2 of the OSI Model?

A
  • Switches
  • Bridges
  • Network Interface Cards (NIC)
  • WAPs
64
Q
  • Network Interface Cards (NIC), Repeaters, Hub, WAPs, Modems… Function at Which Layer of the OSI?
A

Function in Layer 1.

65
Q

R

What devices Function in Layer 1.

A
  • Hub
  • Network Interface Cards (NIC)
  • WAP
  • Modem
  • Repeater
66
Q

OSI Layer 1 determines how digital…

A

…data (bits) is converted to electric pulses, radio waves, or pulses of light to be moved across network cables.

Network+ Exam Prep (11 decks)

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