30 Questions
What is the purpose of the Distribution area in network design?
Provides policy-based connectivity and controls the boundary between access and core layers
Which network architecture involves all the wiring closets connecting to a single, centralized backbone switch or router?
Collapsed Backbone
Why is the Collapsed Backbone design considered simpler but with a potential single point of failure?
It simplifies network structure and management
What is the primary benefit of dividing the complex problem of network design into smaller manageable areas?
Easier troubleshooting
Which area of a network design focuses on providing network access for workgroups and users?
Distribution
What does the Core area in network design primarily focus on?
Providing fast transport within the business campus
What is the main function of the Distribution Layer in a network?
Controlling data flow and applying policies
According to the 80/20 rule, where should 80% of network traffic ideally flow?
Local network segment
What is the primary role of routers in Hierarchical Design?
Facilitating communication between network segments
When should routers make decisions on data packet paths?
Using network topology and routing protocols
Why is filtering implemented in a network?
To block unwanted traffic and enforce policies
Which layer in a network is crucial for applying policy enforcement?
Distribution Layer
What type of protocol is STP (Spanning Tree Protocol)?
Data link layer protocol
Why are ports blocked in STP?
To avoid broadcast storms
What do switches do to monitor their connections in STP?
Send Hello packets
Why is the default gateway important in a network?
To communicate with devices outside the network
How do HSRP and VRRP differ from dynamic routing protocols like RIP or OSPF?
They provide redundant paths
What is the purpose of using a virtual router in networks?
To provide redundancy and failover capabilities
Which layer of the OSI model is responsible for transmitting data bits over a communication circuit?
Layer 1: Physical Layer
In the OSI model, where would services like synchronization, checkpointing, and recovery of data exchange be found?
Session Layer
What is a key difference between the OSI model and the Internet model in terms of the number of layers?
The OSI model has 7 layers while the Internet model has 6 layers.
Which organization created the Open System Interconnection Subcommittee to develop standards for computer-to-computer communications?
International Organization for Standardization (ISO)
What does the Physical Layer of the OSI model transmit over a communication circuit?
Raw stream of bits
Why are services like encryption, compression, and machine-specific conventions primarily associated with the Presentation layer in the OSI model?
To interpret the meaning of data
What is the purpose of IEEE 802.1Q and Cisco's ISL in a network?
To tag frames on trunk ports for VLAN identification
What is the main difference between a one-armed router and a two-armed router?
The number of separate interfaces for different VLANs
How does Dynamic VLAN configuration by MAC address work?
It allows devices to connect to multiple VLANs on the same port
What is one drawback of Spaghetti VLANs in a network?
They can lead to a broadcast storm across the network
In Layer 2 Ethernet networks, what is the primary function of Spanning Tree protocol?
Prevent network loops by blocking certain paths
How do HSRP and VRRP differ from Dynamic Routing Protocols?
HSRP and VRRP provide address-based redundancy for routers
Test your knowledge on different VLAN configurations in networking, including trunk ports, one-armed router, two-armed router, and dynamic VLAN configuration. Understand the concepts behind VLAN setups and how they impact network performance.
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