CCNA 4 Flashcards
Trunking questions
Which command can you enter to determine whether a switch is operating in trunking mode
show interface switchport
Which two commands can be used to verify a trunk link configuration status on a cisco switch?
Show interfaces trunk
show interfaces switchport
Which two of these are characteristics of the 802.1Q protocol
It modifies the 802.3 frame header and thus requires that the FCS be recomputed.
It is a trunking protocol capable of earring untagged frames.
How to create a trunk port and allow vlan 20
Switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk allowed vlan 20
Which mode is compatible with Trunk, Access, and desirable ports?
Dynamic auto
What field is consist of 6 bytes in the field identification frame in IEEE 802.1Q?
SA
Which statement about DTP is true?
It sends data on VLAN 1
How can you disable DTP on a switchport
configure the switchport as a trunk
What is true about DTP?
Layer 2 protocol
proprietary protocol
enabled by default
Which DTP switchport mode allows the port to create a trunk port if the port is in trunk, dynamic auto and dynamic desirable mode?
Dynamic Desirable
What is the function of the command switchport trunk native vlan 999 on a trunk port?
It designates vlan 999 for untagged traffic.
How should the fast ethernet 0/1 port on the 2950 model switches that are shown in the exhibit be configured to allow connectivity between all devices?
switch(config)#interface f0/1
switch(config-if)#switchport mode trunk
