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- NFV is an obsolete concept in SDN, and its role has been replaced by more advanced technologies.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.
PPP includes a protocol for determining the network layer address of the node at the other end of the link. What is this protocol called?
- ARP
- DHCP
- ICMP
- LCP
PPP includes the Link Control Protocol (LCP), which is responsible for establishing, configuring, maintaining, and terminating the connection.
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.
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.