Appendix K. Memory Tables Answer Key

Chapter 1

1:

Table 1-2. ISL and 802.1Q Compared

Function

ISL

802.1Q

Defined by

Cisco

IEEE

Inserts another 4-byte header instead of completely encapsulating the original frame

No

Yes

Supports normal-range (1–1005) and extended-range (1006–4094) VLANs

Yes

Yes

Allows multiple spanning trees

Yes

Yes

Uses a native VLAN

No

Yes

2:

Table 1-3. VTP Features

Function

Server

Client

Transparent

Only sends VTP messages out ISL or 802.1Q trunks

Yes

Yes

Yes

Supports CLI configuration of VLANs

Yes

No

Yes

Can use normal-range VLANs (1–1005)

Yes

Yes

Yes

Can use extended-range VLANs (1006–4095)

No

No

Yes

Synchronizes (updates) its own config database when receiving VTP messages with a higher revision number

Yes

Yes

No

Creates and sends periodic VTP updates every 5 minutes ...

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