A network engineer is troubleshooting intermittent connectivity on a switch. The MAC address table shows that a server's MAC address is flapping between two ports. The server is connected to a single access port. What is the most likely cause?

A Layer 2 loop is causing the switch to see the same MAC address on multiple ports.

The server's NIC is faulty and generating random MAC addresses.

The server is sending frames with a multicast MAC address.

The switch's MAC address table is full.

A network engineer is examining a captured frame and sees a destination MAC address of 01:00:5E:00:00:01. The frame is destined for a group of hosts that have joined a specific multicast group. Which statement about this MAC address is true?

It is a broadcast MAC address, and the switch will flood it to all ports in the VLAN.

It is a multicast MAC address, and the switch will forward it only to ports in the VLAN that have hosts subscribed to the group.

It is a unicast MAC address, and the switch will forward it to a single port.

It is an invalid MAC address and will be dropped by the switch.

What is the primary purpose of a VLAN?

To provide redundancy in case of a switch failure

To increase the speed of the physical network links

To segment a network into multiple broadcast domains

To replace the need for IP addressing

Two switches are connected via a trunk link. A PC in VLAN 10 sends a frame to a PC in VLAN 20 on the other switch. The frame arrives at the trunk port of the first switch. What happens to the frame?

The switch drops the frame because inter-VLAN communication is not allowed on a trunk.

The switch forwards the frame untagged over the trunk.

The switch replaces the source MAC address with the trunk port's MAC address.

The switch adds an 802.1Q tag with VLAN 20 and forwards it over the trunk.

A network engineer is troubleshooting a connectivity issue. A PC sends a frame to a server on a different VLAN. The switch receives the frame and looks up the destination MAC address in its MAC address table. The MAC address is not found. What will the switch do?

Flood the frame out all ports in the VLAN, including the trunk port to the router.

Forward the frame only to the router because inter-VLAN traffic requires routing.

Drop the frame because the destination is on a different VLAN.

Send the frame to all ports in all VLANs.

CiscoCertified Network Associate Automation (CCNA Automation)

Domain 6Objective 1

1. Describe the Purpose and Usage of MAC Addresses and VLANs 200-901 Practice Questions (Page 1)

Part of the 6.0 Network Fundamentals domain, which accounts for 15% of the 200-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 1–1 from this objective — we provide 38 practice questions to prepare you well beyond it. (estimate)

38questions here

8free pages

7concepts

15%of the exam

Questions 1–5

1expert · hard
A network engineer is troubleshooting intermittent connectivity on a switch. The MAC address table shows that a server's MAC address is flapping between two ports. The server is connected to a single access port. What is the most likely cause?
Select an answer first
2application · medium
A network engineer is examining a captured frame and sees a destination MAC address of 01:00:5E:00:00:01. The frame is destined for a group of hosts that have joined a specific multicast group. Which statement about this MAC address is true?
Select an answer first
3foundation · easy
What is the primary purpose of a VLAN?
Select an answer first
4application · medium
Two switches are connected via a trunk link. A PC in VLAN 10 sends a frame to a PC in VLAN 20 on the other switch. The frame arrives at the trunk port of the first switch. What happens to the frame?
Select an answer first
5expert · hard
A network engineer is troubleshooting a connectivity issue. A PC sends a frame to a server on a different VLAN. The switch receives the frame and looks up the destination MAC address in its MAC address table. The MAC address is not found. What will the switch do?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to 200-901

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. “200-901” is a trademark of its owner, used for identification only.