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WGU - Fundamentals of Wired and Wireless Networks > D481 - Chapter 3 > Flashcards

D481 - Chapter 3 Flashcards

1
Q

What is the corresponding layer of “Application” from the TCP/ IP model in the OSI Reference Model?

A

Application

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2
Q

What is the corresponding layer of “Presentation” from the OSI Reference Model in the TCP/ IP reference model?

A

Application

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3
Q

What is the corresponding layer of “Session” from the OSI Reference Model in the TCP/ IP model?

A

Application

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4
Q

What is the corresponding layer of “Transport” from the OSI Reference Model in the TCP/ IP model?

A

Host-to-Host

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5
Q

What is the corresponding layer of “Data Link” from the OSI Reference Model in the TCP/ IP model?

A

Physical

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5
Q

What is the corresponding layer of “Network” from the OSI Reference Model in the TCP/ IP model?

A

Network or Internetwork

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6
Q

What is the corresponding layer of “Physical” from the OSI Reference Model in the TCP/ IP model?

A

Physical

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7
Q

What is an advantage that packet switching has over circuit switching?

A

Packet switching scales better than circuit switching.

I.e., Packet switching shares network resources and therefore scales better the circuit switching

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8
Q

True or False.

IP-based networks use leased analogy communication lines.

A

FALSE.

Circuit switched networks use analogy communication lines; IP-based networks use IP-based systems.

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9
Q

What network physical topology matches the following description

“Computers connected in a closed circle.”

A

Ring

I.e., Ring is physical topology with all the computers connected in a closed circle.

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10
Q

What network physical topology matches the following description

“Computer connected in a linear setup.”

A

Bus

I.e., A bus is a line of computers connected.

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11
Q

What network physical topology matches the following description

“Every computer directly connected to all other computers.”

A

Mesh

I.e., A mesh provides reliability from all of the computers being connected to all other computers in the network.

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11
Q

What network physical topology matches the following description

“Computers connected to a central device.”

A

Star

I.e., A star has a central device to which computers are connected.

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12
Q

What “internetwork type” matches the following description?

“Contains a central device(s) that handles data storage and retrieval”

A

Client/ Server Internetworking

I.e., The servers are central devices that handle data storage and retrieval for the clients.

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13
Q

What “internetwork type” matches the following description?

“A connection between many different computers directly shares resources.”

A

Peer-to-Peer Internetworking

I.e., Peers directly share resources.

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14
Q

What “internetwork type” matches the following description?

“A network that scales easily with more computers”

A

Client/ Server Internetworking

I.e., The client/server system scales better then the peer-to-peer system.

15
Q

What “internetwork type” matches the following description?

“A network that works best in small office home offices (SOHO)”

A

Peer-to-Peer Internetworking

I.e., Peer-to-peer network works well in a small network.

16
Q

What device is used for the following network activities and protocols?

“Rapid Spanning Tree Protocol (RSTP)”

A

A Switch

I.e., Rapid Spanning Tree Protocol (RTSP) stops looping on switches.

17
Q

What device is used for the following network activities and protocols?

“Forwarding of Ethernet Frames”

A

A Switch

I.e., Switches forward frames in a local network.

18
Q

What device is used for the following network activities and protocols?

“Power over ethernet (POE)”

A

A Switch

I.e., Switches can provide power of ethernet.

19
Q

What device is used for the following network activities and protocols?

“Directing a packet from one network to another”

A

A Router

I.e., Switches handle local traffic; routers move traffic from one network to another.

20
Q

What are considered “Internet (Network) layer protocols” in the TCP/IP model?

A

IP - This is Internet Layer protocol of TCP/ IP model
Internet Control Protocol Message (ICPM) - This is Network Layer protocol of TCP/ IP model
Dynamic Host Configuration Protocol (DHCP) - This is Internet Layer protocol of TCP/ IP model

21
Q

At what layer of the OSI Reference Model does Internet Protocol Security (IPSec) work?

A

At the Network Layer (Layer 3)

22
Q

What layer of the OSI Reference Model utilizes the transfer of segments?

A

Transport (Layer 4)

23
Q

At what Layer of the OSI Reference Model does IPSEC work?

A

Layer 3 (Network)

24
Q

What type of network has a low total cost of ownership?

A

The Internet Protocol (IP) based network

Why? - Because the network is shared across many different business functions

WGU - Fundamentals of Wired and Wireless Networks (7 decks)

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