Mod6-9

​Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)​

• NAT improves packet forwarding performance on the router.​

• NAT protects network security because private networks are not advertised.

• NAT allows for easy tracking of end-to-end connections.

• NAT consumes more memory due to the translation table.

• NAT simplifies troubleshooting by maintaining end-to-end visibility.

What is a characteristic of a WAN?​

• Connects devices within a single building.

• Operates within a limited geographic area.

• Provides lower bandwidth compared to LANs.

• Typically owned by a single organization.

Which type of address is 10.131.48.7?

• Public

• Private

• Multicast

• Loopback

​What is a disadvantage when both sides of a communication use PAT?

• End-to-end IPv4 traceability is lost.

• The flexibility of connections to the Internet is reduced.

• The security of the communication is negatively impacted.

• Host IPv4 addressing is complicated.

Which type of VPN has both Layer 2 and Layer 3 implementations?

• IPsec virtual tunnel interface.

• Dynamic multipoint VPN

• GRE over IPsec

• MPLS VPN​

Which type of VPN allows multicast and broadcast traffic over a secure site-to-site VPN?

• Dynamic multipoint VPN

• SSL VPN

• IPsec virtual tunnel interface

• GRE over IPsec

Which type of VPN supports multiple sites by applying configurations to virtual interfaces instead of physical interfaces?​

• Dynamic multipoint VPN

• IPsec virtual tunnel interface

• MPLS VPN

• GRE over IPsec

Which type of VPN involves a nonsecure tunneling protocol being encapsulated by IPsec?​

• Dynamic multipoint VPN

• SSL VPN

• IPsec virtual tunnel interface

• GRE over IPsec

What is the term used to indicate a variation of delay?

• Latency

• Serialization delay​

• Speed mismatch

• Jitter​

Which QoS mechanism allows delay-sensitive data, such as voice, to be sent before packets in other queues are sent?

• Weighted Fair Queuing (WFQ)

• Class-Based Weighted Fair Queuing (CBWFQ)

• Low Latency Queuing (LLQ)

• First-In, First-Out (FIFO)