200-101 · Question #172
Assuming the default switch configuration, which VLAN range can be added, modified, and removed on a Cisco switch?
The correct answer is B. 2 through 1001. On Cisco switches, only VLANs 2 through 1001 (the normal VLAN range) can be freely added, modified, and deleted. VLAN 1 and VLANs 1002-1005 are protected from modification.
Question
Options
- A1 through 1001
- B2 through 1001
- C1 through 1002
- D2 through 1005
How the community answered
(36 responses)- A3% (1)
- B89% (32)
- C3% (1)
- D6% (2)
Why each option
On Cisco switches, only VLANs 2 through 1001 (the normal VLAN range) can be freely added, modified, and deleted. VLAN 1 and VLANs 1002-1005 are protected from modification.
VLAN 1 is the default VLAN on all Cisco switch ports and is a protected system VLAN that cannot be deleted or renamed by administrators.
VLANs 2 through 1001 constitute the normal VLAN range on Cisco switches and are fully manageable by administrators. VLAN 1 is the factory-default VLAN assigned to all ports and cannot be deleted or renamed, while VLANs 1002-1005 are permanently reserved for legacy Token Ring and FDDI protocols and are also protected from deletion or modification.
VLANs 1002-1005 are reserved for legacy Token Ring and FDDI support and are not modifiable, so this range incorrectly implies they are manageable.
This range incorrectly includes VLANs 1002-1005 which are reserved and unmodifiable; the extended VLAN range beyond 1005 is 1006-4094, not 1006-2005.
Concept tested: Cisco switch normal VLAN range and reserved VLANs
Source: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_55_se/configuration/guide/scg3750/swvlan.html
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