Layer 2 Switching (Lesson 2)

Question 1

is the process of using devices’ MAC addresses to decide where to forward frames.

Answer 1

Layer 2 Switching or Data Link Layer Switching

Question 2

the part of a network where packet collisions can occur. A collision occurs when two devices send a packet at the same time on the shared network segment.

Answer 2

Collision Domain

Question 3

Major advantages of Layer 2 Switching (4)

Answer 3

• fast hardware-based bridging
• wire speed
• low latency
• low cost

Question 4

This address is used in LANs for communication between devices on the same network segment.

Answer 4

Media Access Control (MAC)

Question 5

(3) Three functions of Switches in a LAN:

Answer 5

1. Address Learning
2. Forward/ Filter Decisions
3. Loop Avoidance

Question 6

switches learn MAC addresses by examining the source MAC address of each received frame.

Answer 6

Address Learning

Question 6

switches decide whether to forward or filter a frame, based on the destination MAC address.

Answer 6

Forward/ Filter Decisions

Question 7

switches use Spanning Tree Protocol (STP)to prevent network loops while still permitting redundancy.

Answer 7

Loop Avoidance

Question 8

is a network protocol designed to prevent layer 2 loops. It is standardized asIEEE 802.Dprotocol.

Answer 8

Spanning Tree Protocol (STP)

Question 9

Types of Network Switches (5):

Answer 9

1. Modular Network Switches
2. Fixed-configuration Network Switches
3. Managed Network Switches
4. Unmanaged Network Switches
5. Smart Ethernet Switches

Question 10

offer the flexibility to add expansion modules based on changing network requirements.
These modules are specific to various applications like firewalls, wireless connectivity, or network analysis.

Answer 10

Modular Network Switches

Question 11

have a predetermined number of ports and are generally non-expandable, making them more cost-effective overall.

Answer 11

Fixed-configuration Network Switches

Question 12

offer the most comprehensive features. They can provide excellent application experience, high levels of security, easy management, and scalability for future networks.
Most expensive.

Answer 12

Managed Network Switches

Question 13

are designed to be plug-and-play and no configuration is needed.
They are most suitable when simple switching and connectivity are required, commonly found in home networks or environments where only a few ports are needed, such as desks, labs, or conference rooms.

Answer 13

Unmanaged Network Switches

Question 14

provide management, segmentation, quality of service, and security capabilities, making them a cost-effective alternative to modular switches.
However, they are not as scalable as managed switches.

Answer 14

Smart Ethernet Switches