A school wants to allow only registered student laptops to access the campus network. Each laptop has a known MAC address. The switch supports MAC address filtering. What is the most effective way to enforce this policy?

Disable all switch ports except those used by registered laptops.

Configure a deny list with the MAC addresses of all unregistered devices.

Configure an allow list with the MAC addresses of all registered laptops.

Use VLANs to isolate each laptop into its own broadcast domain.

A switch has a MAC address table with an entry for a server on port 5. The server is moved to port 8. A frame destined for the server arrives at the switch. What happens?

The switch forwards the frame to port 5 because the table entry is still valid

The switch drops the frame because the server is no longer on port 5

The switch updates the table to port 8 before forwarding

The switch floods the frame out all ports except the ingress port

How does a switch build its MAC address table?

By reading the ARP cache of connected devices

By recording the source MAC address and the ingress port of each received frame

By examining the destination MAC address of each frame it forwards

By using the IP address of each device to determine its MAC address

A switch has a MAC address filter that denies a specific source MAC. The denied device sends a broadcast frame. What does the switch do?

Floods the frame to all ports in the same VLAN

Drops the frame because the source MAC is denied

Sends the frame to the router for a decision

Forwards the frame only to the default gateway

A company wants to allow only specific known devices to connect to a switch port. Which feature should be configured?

Spanning Tree Protocol (STP) on the port

Port security with allowed MAC addresses

CiscoCertified Support Technician (CCST) Networking

Domain 4Objective 5

4.5. Explain Basic Switching Concepts. 100-150 Practice Questions (Page 2)

Part of the Infrastructure domain, which makes up ~18% of our current practice bank. Cisco does not publish an official question count, but from its 50-minute exam (~20–35 total, ~4–6 in this domain), expect 1–1 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

3concepts

Questions 6–10

6application · medium
A school wants to allow only registered student laptops to access the campus network. Each laptop has a known MAC address. The switch supports MAC address filtering. What is the most effective way to enforce this policy?
Select an answer first
7expert · hard
A switch has a MAC address table with an entry for a server on port 5. The server is moved to port 8. A frame destined for the server arrives at the switch. What happens?
Select an answer first
8foundation · easy
How does a switch build its MAC address table?
Select an answer first
9expert · hard
A switch has a MAC address filter that denies a specific source MAC. The denied device sends a broadcast frame. What does the switch do?
Select an answer first
10application · medium
A company wants to allow only specific known devices to connect to a switch port. Which feature should be configured?
Select an answer first

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