NE NE WAN Technologies

Question 1

Which WAN technology uses labels rather than IP addresses to forward packets, improving speed and enabling traffic engineering?

Accepted Answer

MPLS

Answer

Frame Relay

Answer

ATM

Answer

SD-WAN

Question 2

What is a site-to-site VPN primarily used for in WAN connectivity?

Accepted Answer

Connecting two geographically separate networks over a public internet connection with encryption

Answer

Providing remote employees access to corporate resources

Answer

Accelerating application delivery across WAN links

Answer

Replacing MPLS with BGP routing

Question 3

What is the primary advantage of SD-WAN over traditional WAN technologies?

Accepted Answer

It provides centralized management and dynamic path selection across multiple WAN links

Answer

It eliminates the need for encryption

Answer

It requires dedicated MPLS circuits

Answer

It uses proprietary protocols for routing

Question 4

Which WAN circuit type provides a dedicated point-to-point connection with guaranteed bandwidth between two locations?

Accepted Answer

Leased line (T1/E1)

Answer

DSL

Answer

Cable broadband

Answer

Satellite internet

Question 5

What is the purpose of QoS (Quality of Service) in WAN environments?

Accepted Answer

To prioritize critical traffic like voice and video over less time-sensitive data

Answer

To encrypt traffic across WAN links

Answer

To compress packets for faster transmission

Answer

To authenticate users connecting to the WAN

Question 6

Which protocol is used at the WAN data link layer to encapsulate IP traffic over serial point-to-point connections?

Accepted Answer

HDLC or PPP

Answer

Ethernet

Answer

802.1Q

Answer

Frame Relay