Google IT Support Professional Certificate at Ahmadu Bello University | Flashcards & Summaries

Lernmaterialien für Google IT Support Professional Certificate an der Ahmadu Bello University

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What is the ethernet's technique of solving the collision domain problem?

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Carrier sense multiple access with collision domain (CSMA/CD).

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What is the function of CSMA/CD?

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It is used to determine when the channel is clear and when the device is free to transmit data

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What is CSMA/CD

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Carrier sense multiple access with collision detection

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MAC address stands for?

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Media Access Control Address

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What is a data packet?

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It is a single set of binary data being sent across a network link

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What is an ethernet frame?

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it is a highly structured collection of information, arranged in a specific order

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How long is an ethernet frame's preamble?

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8 bytes / 48 bits

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How is a frame's preamble structured?

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It is split into two, with the first 7 bytes being an alternation of 1s and 0s, and the last byte being the SFD (Start Frame Delimiter)

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What are the functions of the first 7 bytes of the ethernet frame preamble?

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1. Serves as buffer between frames.

2. helps to synchronize the internal clocks of the network interfaces, which determines how fast they send data

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What is SFD?

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Start Frame Delimiter

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What is the function of the SFD?

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Signifies where the preamble ends, indicating where the frame's content begins

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The ethernet packet is composed of.......?

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1. Preamble, including:
a. alternating bits
b. SFD
2. Ethernet header, including:
a.  destination and source MAC addresses

b. optional VLAN tag

c. etherType

3. Payload

4. Frame Check Sequence (FCS)
5. Interpacket gap (IGP)

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Q:

What is the ethernet's technique of solving the collision domain problem?

A:

Carrier sense multiple access with collision domain (CSMA/CD).

Q:

What is the function of CSMA/CD?

A:

It is used to determine when the channel is clear and when the device is free to transmit data

Q:

What is CSMA/CD

A:

Carrier sense multiple access with collision detection

Q:

MAC address stands for?

A:

Media Access Control Address

Q:

What is a data packet?

A:

It is a single set of binary data being sent across a network link

Mehr Karteikarten anzeigen
Q:

What is an ethernet frame?

A:

it is a highly structured collection of information, arranged in a specific order

Q:

How long is an ethernet frame's preamble?

A:

8 bytes / 48 bits

Q:

How is a frame's preamble structured?

A:

It is split into two, with the first 7 bytes being an alternation of 1s and 0s, and the last byte being the SFD (Start Frame Delimiter)

Q:

What are the functions of the first 7 bytes of the ethernet frame preamble?

A:

1. Serves as buffer between frames.

2. helps to synchronize the internal clocks of the network interfaces, which determines how fast they send data

Q:

What is SFD?

A:

Start Frame Delimiter

Q:

What is the function of the SFD?

A:

Signifies where the preamble ends, indicating where the frame's content begins

Q:

The ethernet packet is composed of.......?

A:

1. Preamble, including:
a. alternating bits
b. SFD
2. Ethernet header, including:
a.  destination and source MAC addresses

b. optional VLAN tag

c. etherType

3. Payload

4. Frame Check Sequence (FCS)
5. Interpacket gap (IGP)

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