The ________ layer of the OSI model ensures data integrity and error recovery at the transport level.
- Data Link
- Network
- Physical
- Transport
The Transport layer of the OSI model ensures data integrity and error recovery at the transport level.
What happens when a switch receives a frame on a trunk port without a VLAN tag?
- The frame is dropped
- The switch assigns a default VLAN
- The switch forwards the frame to all VLANs
- The switch sends a VLAN membership request
When a switch receives a frame on a trunk port without a VLAN tag, the switch assigns a default VLAN to the frame.
Which protocol uses the DUAL algorithm to ensure loop-free and rapid convergence?
- BGP
- EIGRP
- OSPF
- RIP
EIGRP (Enhanced Interior Gateway Routing Protocol) uses the DUAL (Diffusing Update Algorithm) to ensure loop-free and rapid convergence in routing.
_________ enables dynamic, programmatically efficient network configuration in SDN to improve network performance and monitoring.
- OpenFlow
- REST API
- Python scripting
- NETCONF
OpenFlow enables dynamic, programmatically efficient network configuration in SDN to improve network performance and monitoring.
A non-root bridge port that is selected to forward traffic towards the root bridge is called a _______ port.
- Blocking Port
- Designated Port
- Listening Port
- Root Port
A non-root bridge port that is selected to forward traffic towards the root bridge is called a Root Port. The Root Port offers the shortest path to the root bridge.
How does STP's root bridge election process determine which switch will be the root bridge in a network?
- Highest IP Address
- Highest MAC Address
- Lowest IP Address
- Lowest MAC Address
The root bridge is determined in the STP election process based on the switch with the lowest Bridge ID, which includes the priority and MAC address.
GRE tunnels are often used in conjunction with _______ to provide a more secure VPN solution.
- IPsec
- SSL/TLS
- PPTP
- L2TP
GRE tunnels are often used in conjunction with IPsec to provide a more secure VPN solution.
What is the primary benefit of using microservices architecture in cloud-based applications?
- Improved scalability, flexibility, and easier maintenance
- Reduced reliance on cloud services
- Simplified monolithic application structure
- Enhanced security through centralized control
The primary benefit of using microservices architecture in cloud-based applications is improved scalability, flexibility, and easier maintenance, as it allows for the independent development and deployment of services.
In an organization where network redundancy and reliability are crucial, the network administrator is tasked with choosing a topology that ensures continuous network operation even if one connection fails. Which topology is the most suitable?
- Bus
- Mesh
- Ring
- Star
Mesh topology provides maximum redundancy and reliability as every device is connected to every other device, ensuring continuous operation even if one connection fails.
An IT manager is troubleshooting intermittent WAN connectivity issues. What should be the initial step in diagnosing the problem?
- Check for Physical Layer Issues
- Analyze Network Traffic
- Review Router Configurations
- Monitor WAN Bandwidth
Checking for physical layer issues, such as cable connections and hardware problems, is the initial step in diagnosing intermittent WAN connectivity issues.