What is the primary role of a MAC address in Layer 2 communication?

It identifies the device's location on the internet

It identifies the network interface of a device within a local network segment

It provides the logical address used for routing between networks

It encrypts the frame to ensure secure transmission

What is the primary purpose of port security on a switch port?

To restrict access to the port based on MAC addresses

To increase the speed of the port

To prioritize traffic based on VLAN tags

To encrypt all traffic passing through the port

A switch port is configured as an access port in VLAN 10. A technician needs to connect a device that will send traffic for both VLAN 10 and VLAN 20. What must be done?

Configure the port as a trunk port with a native VLAN of 10

Keep the port as an access port in VLAN 10

Enable port security on the port

Change the port to a trunk port and configure the allowed VLANs

A technician is configuring an EtherChannel between two switches. The links are configured as trunks carrying VLANs 10, 20, and 30. The EtherChannel does not form. What is the most likely cause?

The allowed VLAN list is different on the two switches

STP is blocking one of the links

The links are in different VLANs

Port security is enabled on the links

What is the role of the root bridge in a Spanning Tree Protocol (STP) topology?

It assigns IP addresses to all devices in the network

It forwards all broadcast traffic to the internet

It serves as the reference point for all path cost calculations

It blocks all ports to prevent loops

CiscoCertified Field Technician (CCT)

Domain 1Objective 4

1.4 Describe Network Switching and Layer 2 Technologies 800-150 Practice Questions (Page 1)

Part of the 1.0 Networking Foundations domain, which accounts for 20% of the 800-150 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 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

8concepts

20%of the exam

Questions 1–5

1foundation · easy
What is the primary role of a MAC address in Layer 2 communication?
Select an answer first
2foundation · easy
What is the primary purpose of port security on a switch port?
Select an answer first
3application · medium
A switch port is configured as an access port in VLAN 10. A technician needs to connect a device that will send traffic for both VLAN 10 and VLAN 20. What must be done?
Select an answer first
4expert · hard
A technician is configuring an EtherChannel between two switches. The links are configured as trunks carrying VLANs 10, 20, and 30. The EtherChannel does not form. What is the most likely cause?
Select an answer first
5foundation · easy
What is the role of the root bridge in a Spanning Tree Protocol (STP) topology?
Select an answer first

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