In SDN, what is the role of Network Function Virtualization (NFV)?
- NFV virtualizes network functions, such as firewalls and load balancers, allowing them to run as software instances on commodity hardware.
- NFV is responsible for physical connectivity in SDN, ensuring that network devices are properly connected.
- NFV is an obsolete concept in SDN, and its role has been replaced by more advanced technologies.
- NFV is only applicable in traditional, non-virtualized networking environments.
In SDN, NFV virtualizes network functions, enabling them to run as software instances on commodity hardware for increased flexibility.
Which protocol is commonly encapsulated within GRE tunnels to provide VPN services?
- IPsec
- MPLS
- L2TP
- PPTP
IPsec is commonly encapsulated within GRE tunnels to provide VPN services.
How does NAT traversal technique help in peer-to-peer communication across networks using NAT?
- It encrypts the entire communication to bypass NAT restrictions.
- It establishes a direct connection between the peers without NAT involvement.
- It relies on the use of globally routable IP addresses for all devices.
- It uses special NAT-aware protocols to negotiate the traversal.
NAT traversal involves using special NAT-aware protocols to negotiate the traversal, allowing peer-to-peer communication across networks using NAT.
The process of adding a VLAN tag to frames on a trunk port is known as ________.
- VLAN Encapsulation
- VLAN Framing
- VLAN Tagging
- VLAN Untagging
The process of adding a VLAN tag to frames on a trunk port is known as VLAN Encapsulation.
In BGP, what is the purpose of the AS_PATH attribute?
- Identify Neighbors
- Define Preferred Path
- Prevent Routing Loops
- Advertise Local IP Prefixes
The AS_PATH attribute in BGP is used to prevent routing loops by tracking the Autonomous Systems through which the route has passed.
What is the process called that enables a cloud service customer to increase or decrease resources as needed?
- Cloud Scaling
- Elasticity
- Resource Provisioning
- Cloud Expansion
Elasticity is the process that enables a cloud service customer to increase or decrease resources as needed.
Which QoS feature is used to manage congestion by controlling the rate at which packets are sent into the network?
- Traffic shaping
- Packet filtering
- Congestion avoidance
- Link aggregation
Traffic shaping is a QoS feature used to manage congestion by controlling the rate at which packets are sent into the network, preventing network congestion.
In a large data center, network engineers need to rapidly deploy changes across thousands of devices. What network automation strategy should they adopt to manage this effectively?
- Orchestration
- Configuration Management
- Continuous Integration/Continuous Deployment (CI/CD)
- Scripting
CI/CD is a strategy that allows rapid deployment and changes across a large number of devices in a data center.
When a network experiences an issue immediately after a configuration change, what troubleshooting principle should the technician follow first?
- Roll back the configuration change
- Implement additional security measures
- Increase network bandwidth
- Reboot the affected devices
In troubleshooting issues after a configuration change, the technician should first consider rolling back the configuration change to the previous state and observe the impact.
For a remote office connection that requires both data compression and error detection, which protocol offers these features in its standard framework?
- IPsec
- L2TP
- PPP
- Frame Relay
PPP (Point-to-Point Protocol) supports data compression and error detection as part of its standard framework, making it suitable for a remote office connection with these requirements.
In VRRP, what is the significance of having a higher priority value on a router?
- Faster Transition
- Lower Priority
- Preemption
- Virtual IP
In VRRP, a router with a higher priority value becomes the master router. Preemption allows a higher priority router to take over as the master if it becomes available.
What is the primary purpose of implementing Quality of Service (QoS) in a network?
- Enhancing network security
- Maximizing network speed
- Prioritizing and managing network traffic
- Expanding network coverage
The primary purpose of implementing Quality of Service (QoS) in a network is to prioritize and manage network traffic efficiently.