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.
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.
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- NFV is an obsolete concept in SDN, and its role has been replaced by more advanced technologies.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.
How does DHCP Snooping enhance network security?
- Blocks all DHCP traffic
- Enables dynamic IP allocation
- Encrypts DHCP messages
- Filters unauthorized DHCP messages
DHCP Snooping enhances network security by filtering unauthorized DHCP messages, preventing malicious DHCP attacks such as DHCP spoofing and starvation.
In AAA, ________ determines what resources a user can access and what operations they can perform.
- Authentication
- Authorization
- Accounting
- All of the Above
In AAA, Authorization determines what resources a user can access and what operations they can perform.
In network scripting, _______ patterns are used to extract specific information from structured text like logs or configuration files.
- Regular Expression
- JSON
- XPath
- YAML
In network scripting, Regular Expression patterns are used to extract specific information from structured text like logs or configuration files.
SNMP operates in the ______ layer of the OSI model, providing a framework for managing devices in a network.
- Application
- Data Link
- Network
- Presentation
SNMP operates in the Application layer of the OSI model, providing a framework for managing devices in a network.
A network engineer needs to design a network that can efficiently handle varying types of traffic, such as voice, video, and data. What technology would be most suitable for such requirements?
- QoS (Quality of Service)
- VLAN (Virtual Local Area Network)
- MPLS
- Frame Relay
QoS (Quality of Service) technology is most suitable for designing a network that can efficiently handle varying types of traffic, ensuring the prioritization of voice, video, and data.
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.
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.