A network has two switches connected by two redundant links. The technician notices that the network is unstable and suspects a Layer 2 loop. What protocol should be used to prevent this?

Link Aggregation (EtherChannel)

What is the primary purpose of Spanning Tree Protocol (STP) in a switched network?

To segment the network into multiple broadcast domains

To prevent Layer 2 loops by blocking redundant paths

To increase the bandwidth of a single link by combining multiple links

To provide security by restricting access based on MAC addresses

A switch receives a frame with a destination MAC address that is already in its MAC address table and is associated with the same port the frame arrived on. What will the switch do?

Forward the frame out all other ports

Send the frame to the CPU for processing

How does link aggregation (EtherChannel) handle the physical links within the bundle?

It requires all links to be the same speed but allows different duplex settings

It treats the bundle as a single logical link for forwarding decisions

It uses one link for data and the others for backup only

It forwards traffic on all links simultaneously, duplicating every frame

A company wants to prevent unauthorized devices from connecting to a specific switch port. The port should only allow the MAC address of the known workstation. What should be configured?

Port security with a static MAC address

Spanning Tree Protocol on the port

CiscoCertified Field Technician (CCT)

Domain 1Objective 4

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

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 6–10

6application · medium
A network has two switches connected by two redundant links. The technician notices that the network is unstable and suspects a Layer 2 loop. What protocol should be used to prevent this?
Select an answer first
7foundation · easy
What is the primary purpose of Spanning Tree Protocol (STP) in a switched network?
Select an answer first
8application · medium
A switch receives a frame with a destination MAC address that is already in its MAC address table and is associated with the same port the frame arrived on. What will the switch do?
Select an answer first
9foundation · easy
How does link aggregation (EtherChannel) handle the physical links within the bundle?
Select an answer first
10application · medium
A company wants to prevent unauthorized devices from connecting to a specific switch port. The port should only allow the MAC address of the known workstation. What should be configured?
Select an answer first

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