Ethernet Switching
Ethernet switches operate at which layer of the OSI model?
Physical Layer
Data link Layer
Network Layer
Transport Layer
Compared to hubs, switches offer:
Lower bandwidth
Increased collisions
Dedicated connections for devices
Slower data transfer rates
What is the term for a loop in a switched network that can cause a broadcast storm?
Bottleneck
Spanning Tree Protocol (STP)
Collision Domain
Bandwidth Throttling
Which type of switch port learns the MAC address of connected devices?
Trunk Port
Access Port
Console Port
Management Port
VLANs (Virtual LANs) in Ethernet switching allow for:
Increased network congestion
Improved network security and segmentation
Reduced overall network performance
Removal of the need for MAC addresses
Full-duplex communication in Ethernet switching means:
Data can only be sent in one direction at a time
Both devices can send and receive data simultaneously
Switches amplify signal strength
Packets are always broadcasted
What is the primary function of port security on an Ethernet switch?
To improve data transfer speeds
To limit the number of connected devices
To automatically configure switch settings
To increase the range of the network
Which of the following is NOT a common type of Ethernet frame used in switching?
Data Frame
Management Frame
Control Frame (Not commonly used in modern switching)
Jumbo Frame
What is the process of learning and updating the MAC address table on an Ethernet switch called?
Port Aggregation
Address Resolution Protocol (ARP)
Learning Bridge
Dynamic Host Configuration Protocol (DHCP)
Which switching technique uses content inspection to make forwarding decisions beyond just MAC addresses?
Port-based switching
VLAN switching
Content-Addressable Memory (CAM) switching
Layer 3 switching
What is the primary advantage of using static trunking over dynamic trunking protocols (DTP) when configuring switch trunk ports?
Improved security
Increased flexibility
Reduced configuration overhead
Automatic negotiation of trunk capabilities
What type of Spanning Tree Protocol (STP) is designed for rapid convergence after a network topology change?
Rapid Spanning Tree Protocol (RSTP)
Multiple Spanning Tree Protocol (MSTP)
Converged Enhanced Spanning Tree (CEPV2)
Shortest Path Bridging (SPB)
What is the main purpose of implementing Quality of Service (QoS) features on an Ethernet switch?
To increase the overall network bandwidth
To prioritize traffic for specific applications or devices
To eliminate network congestion completely
To simplify switch management tasks
When configuring port mirroring on an Ethernet switch, which port typically receives the mirrored traffic?
Management port
Any unused port
A designated sniffer port
The source port being mirrored
What is the benefit of using Link Aggregation Groups (LAGs) in Ethernet switching?
To create separate collision domains
To increase the bandwidth available between switches
To improve security between network segments
To simplify switch redundancy configurations
What is the difference between a source-learning and reverse ARP (RARP) on an Ethernet switch?
Source-learning builds the MAC address table, while RARP is used for IP address assignment.
RARP is faster than source-learning for building the MAC address table.
Source-learning works with static IP addresses, while RARP requires DHCP.
RARP is used for switch-to-switch communication, while source-learning is for device-to-switch.
What security feature on an Ethernet switch can be used to prevent unauthorized access to specific ports?
VLAN hopping
Port security
Link aggregation
Spanning Tree Protocol
What is the role of the Management Information Base (MIB) in Ethernet switch management?
To provide a graphical user interface for switch configuration
To define a standard for accessing and managing switch information
To encrypt switch configuration data
To automatically configure switch settings based on network topology
What is the main difference between cut-through and store-and-forward switching in terms of latency?
Cut-through offers higher latency due to minimal processing.
Store-and-forward provides lower latency by ensuring error-free packets.
Cut-through requires more processing power than store-and-forward.
Store-and-forward is not suitable for real-time applications.
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