_________ firewalls are known for their ability to filter traffic based on applications or services.
- Stateful Inspection
- Proxy
- Application Layer
- Packet Filtering
Application Layer firewalls are known for their ability to filter traffic based on applications or services.
________ offers a cost-effective way to connect multiple sites over a shared network infrastructure.
- MPLS (Multiprotocol Label Switching)
- VPN (Virtual Private Network)
- DNS (Domain Name System)
- DHCP (Dynamic Host Configuration Protocol)
MPLS offers a cost-effective way to connect multiple sites over a shared network infrastructure.
A _________ is a set of rules applied to a router to control network traffic and mitigate security risks.
- Firewall
- Protocol
- Routing Table
- Access Control List (ACL)
An Access Control List (ACL) is a set of rules applied to a router to control network traffic and mitigate security risks.
In an organization looking to scale its network infrastructure with minimal physical changes, which SDN capability would be most critical?
- Network Function Virtualization (NFV)
- Southbound API
- Northbound API
- Control Plane Separation
Network Function Virtualization (NFV) in SDN allows scaling the network infrastructure by virtualizing network functions, minimizing the need for physical changes.
In a stacked configuration, individual switches are interconnected using a ________ link.
- Backbone
- Mesh
- Trunk
- Uplink
In a stacked configuration, individual switches are interconnected using a trunk link to facilitate communication and coordination.
How does GRE tunneling differ from traditional VPN tunneling in terms of encryption and security features?
- GRE focuses on providing a simple encapsulation method without inherent encryption.
- GRE offers stronger encryption and security features compared to traditional VPNs.
- GRE and traditional VPNs have identical encryption and security features.
- GRE and traditional VPNs do not support encryption.
GRE primarily provides encapsulation and does not inherently offer encryption, unlike traditional VPNs that focus on security features.
What is the main security benefit of using NAT in a network infrastructure?
- It automatically detects and blocks malicious traffic.
- It hides internal IP addresses from external networks.
- It implements strong access control policies.
- It provides encryption for all transmitted data.
The main security benefit of using NAT is that it hides internal IP addresses from external networks, adding a layer of security by obscuring the internal network structure.
In a data center, the network team is implementing EtherChannel to enhance throughput and redundancy. What configuration aspects are critical to ensure optimal performance and reliability?
- DHCP configuration, broadcast storm control, and OSPF areas
- Duplex settings, access control lists, and SNMP versions
- Link aggregation mode, spanning-tree protocol parameters, and interface MTU
- NAT settings, VLAN pruning, and HSRP priorities
Configuring link aggregation mode, spanning-tree protocol parameters, and interface MTU are critical aspects for ensuring optimal performance and reliability when implementing EtherChannel in a data center.
Which protocol is commonly used for communication between the SDN controller and network devices?
- SNMP
- OSPF
- OpenFlow
- BGP
OpenFlow is a widely used protocol for communication between the SDN controller and network devices, enabling centralized control.
What is the primary purpose of subnetting in IP networking?
- Enhance network security
- Improve network performance
- Increase the number of available host addresses
- Simplify IP address management
The primary purpose of subnetting is to increase the number of available host addresses within a network.