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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
# r End-to-end flow control. Port and socket numbers. Segmentation, Sequencing, and combination.
Transport layer functions include:
26
Transport layer functions include:
End-to-end flow control. Port and Socket numbers. Segmentation, Sequencing
27
# 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
Network (Layer 3)
28
Network (Layer 3)
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
# r provides a transition between the upper and lower layers of the OSI model
Transport (Layer 4)
30
At the Network layer, data segments are called.
packets
31
At the Data Link layer, data segments are called
-Frames.
32
At the Transport layer, data is referred to as
segments.
33
# r segments.
At the Transport layer, data is referred to as
34
# r packets
At the Network layer, data segments are called.
35
Data Link (Layer 2) defines 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)
36
Protocols at the Physical layer identify:
-Specifications for cables and connectors.
37
# r * -Switches * Bridges * Network Interface Cards (NIC) * WAPs Function at which Layer of the OSI Model
Data Link (Layer 2)
38
# 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)
Data Link (Layer 2)
39
# r sets standards for sending and receiving electrical signals between devices.
Physical (Layer 1)
40
Data Link Layer defines how the physical network devices are identified...
by defining a unique MAC address
41
# 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).
Data Link Layer Rules & Procedures define how:
42
Physical (Layer 1) sets standards for...
...sending and receiving electrical signals between devices.
43
# r Cover a small geographic area, like an office. Typically uses wires to connect systems together.
Local Area Network (LAN)
44
At the Physical layer, data segments are called
-Bits
45
Which OSI Layer determines how digital data (bits) is converted to electric pulses, radio waves, or pulses of light and moved across network cables.
OSI Physical Layer 1
46
# r -Bits.
At the Physical layer, data segments are called
47
# r - Specifications for cables and connectors. - The physical topology.
Protocols at the Physical layer identify:
48
# 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.
Metropolitan Area Network (MAN)
49
# r robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other w/o a host computer.
Controller Area Network (CAN)
50
# r Controller Area Network (CAN bus)
It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles
51
# r The physical topology -the way the network is wired. The logical topology -the way messages are sent.
What is the difference between Physical and Logical Topology?
52
# 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.
Bus Topology
53
# 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.
Ring Topology
54
# 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.
Star Topology
55
# r created using point-to-point connections. This increases the network's fault tolerance because alternate paths can be used when one path fails.
Mesh Topology
56
# r Application - All Presentation People Session- Seem Transport- To Network- Need Data Link- Data Physical- Processing
OSI Model Mnemonics Layer 7---\>\>Layer 1
57
# r Please Physical Do- Data Not- Network Throw-Transport Sausage- Session Pizza- Presentation Away- Application
OSI Model Mnemonics Layer 1 ---\>\> Layer 7
58
# r - Provides a common language and reference point for network professionals - Aids in troubleshooting
OSI Model Benefits
59
# r HTTP FTP TFTP Telnet SNMP
Protocols (aka services) typically associated with the Application layer include: (5)
60
# r presents, data in a compatible form for receipt by the Application layer or the destination system.
Presentation (Layer 6)
61
# 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.
The Presentation layer ensures:
62
# r manages the setup, maintenance, and teardown of communication.
Session (Layer 5)
63
What devices operate at Layer 2 of the OSI Model?
* Switches * Bridges * Network Interface Cards (NIC) * WAPs
64
* Network Interface Cards (NIC), Repeaters, Hub, WAPs, Modems... Function at Which Layer of the OSI?
Function in Layer 1.
65
# R What devices Function in Layer 1.
* Hub * Network Interface Cards (NIC) * WAP * Modem * Repeater
66
OSI Layer 1 determines how digital...
...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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