Which command configures the native VLAN on a Cisco switch trunk port?

switchport trunk allowed vlan 10

switchport trunk native vlan 10

What is the purpose of the Dynamic Trunking Protocol (DTP)?

To assign VLANs to access ports automatically

To negotiate the formation of a trunk link between two switches

To synchronize VLAN databases across switches

To tag frames with VLAN information on a trunk

Two switches are connected via an 802.1Q trunk. Switch A has native VLAN 1 and Switch B has native VLAN 99. Both switches carry VLANs 10 and 20 on the trunk. What is the most likely result of this configuration?

The trunk will not come up because native VLANs must match for the link to be operational.

VLAN 1 traffic will be dropped at Switch B because the native VLANs do not match.

All VLAN traffic will be double-tagged and forwarded correctly.

Untagged frames from Switch A will be placed into VLAN 99 on Switch B, potentially causing VLAN hopping or misrouting.

A network engineer is explaining to a junior admin how 802.1Q tagging works on a trunk between two switches. The junior admin asks: 'When a frame from VLAN 5 is sent out a trunk port, what exactly changes in the Ethernet frame?' Which answer is correct?

The source MAC address is replaced with the switch's MAC address.

A 4-byte tag containing the VLAN ID is inserted after the source MAC address, and the FCS is recalculated.

The entire frame is encapsulated with a new Ethernet header and trailer.

The VLAN ID is placed in the IP header's options field.

Which statement accurately describes how a trunk port handles frames from different VLANs?

It adds a VLAN tag to each frame so the receiving switch can identify the VLAN.

It strips all VLAN tags and forwards frames without any VLAN information.

It forwards all frames as broadcast traffic to all VLANs.

It uses the source MAC address to determine the VLAN for each frame.

CiscoCertified Network Associate (CCNA)

Domain 2Objective 2

2.2 Configure and Verify Interswitch Connectivity 200-301 Practice Questions (Page 5)

Part of the Network Access domain, which accounts for 20% of the 200-301 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–2 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

8concepts

20%of the exam

Questions 21–25

21foundation · easy
Which command configures the native VLAN on a Cisco switch trunk port?
Select an answer first
22foundation · easy
What is the purpose of the Dynamic Trunking Protocol (DTP)?
Select an answer first
23application · medium
Two switches are connected via an 802.1Q trunk. Switch A has native VLAN 1 and Switch B has native VLAN 99. Both switches carry VLANs 10 and 20 on the trunk. What is the most likely result of this configuration?
Select an answer first
24application · medium
A network engineer is explaining to a junior admin how 802.1Q tagging works on a trunk between two switches. The junior admin asks: 'When a frame from VLAN 5 is sent out a trunk port, what exactly changes in the Ethernet frame?' Which answer is correct?
Select an answer first
25foundation · easy
Which statement accurately describes how a trunk port handles frames from different VLANs?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to 200-301

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Cisco. “200-301” is a trademark of its owner, used for identification only.