Chapter 4 — Session 3: MAC Addresses & Ethernet Addressing

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Last updated 10:53 PM on 8/11/26
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15 Terms

1
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How long is a standard MAC address?

48 bits

2
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How many bytes are in a 48-bit MAC address?

6

3
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How many hexadecimal characters normally represent a 48-bit MAC address?

12

4
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At which OSI layer are MAC addresses primarily used?

Layer 2

5
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What does OUI identify?

Manufacturer/vendor

6
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Traditionally, which portion of a globally assigned 48-bit MAC address contains the OUI?

First 24 bits

7
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Which transmission is intended for ONE specific destination?

Unicast

8
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Which transmission is intended for a selected group?

Multicast

9
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What is the Ethernet broadcast MAC address?

FF:FF:FF:FF:FF:FF

10
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What does the I/G bit indicate?

Individual/Group

11
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What does the U/L bit indicate?

Universal/Local

12
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Which pairing is correct?

MAC → Layer 2; IP → Layer 3

13
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A frame needs to be delivered to every device in the local broadcast domain. Which destination MAC should be used?

FF:FF:FF:FF:FF:FF

14
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A computer is sending an Ethernet frame directly to one other computer on its LAN. What type of destination address is normally being used?

Unicast

15
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Which statement is correct?

Unicast targets a specific destination