Q1: Which of the following VLANs can be pruned by VTP on an 802.1Q trunk?
a. 1–1023
b. 1–1001
c. 2–1001
d. 1–1005
e. 2–1005
Q2: Assume that two brand-new Cisco switches were removed from their cardboard boxes. PC1 was attached to one switch, PC2 was attached to the other, and the two switches were connected with a cross-over cable. The switch connection dynamically formed an 802.1Q trunk. When PC1 sends a frame to PC2, how many additional bytes of header are added to the frame before it passes over the trunk?
a. 0
b. 4
c. 8
d. 26
Q3: Assume that two brand-new Cisco Catalyst 3560 switches were connected with a cross-over cable. Before the cable was attached, one switch interface was configured with the switchport trunk encapsulation dot1q, switchport mode trunk, and switchport nonegotiate subcommands. Which of the following must be configured on the other switch before trunking will work between the switches?
a. switchport trunk encapsulation dot1q
b. switchport mode trunk
c. switchport nonegotiate
d. No configuration is required.
Q4: Which of the following about 802.1Q are false?
a. Encapsulates the entire frame inside an 802.1Q header and trailer
b. Has a concept of a native VLAN
c. Allows VTP to operate only on extended-range VLANs
d. Is chosen over ISL by DTP
Q5: What is a Native VLAN and what type of traffic will go through a Native VLAN
Q6: In Cisco IOS what command shows you the VLANs on a trunk
Answers:
1: C
2: A
3: A and B
4: A, C, D
5: A trunk port is assigned a default VLAN ID for a VLAN that all untagged traffic will travel on. This VLAN is called the Native VLAN and is always VLAN 1 by default (but can be changed to any VLAN number). Similarly any untagged or tagged traffic with an unassigned VLAN ID is assumed to belong to the Native VLAN
6: show interface trunk
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