Interview Questions

Differentiate between symmetric and asymmetric encryption.

Symmetric and asymmetric encryption are two fundamental cryptographic techniques used

Describe the purpose of VPN (Virtual Private Network).

A Virtual Private Network (VPN) serves as a secure and

What is AAA (Authentication, Authorization, and Accounting)?

AAA, which stands for Authentication, Authorization, and Accounting, is a

Explain the concept of WAN optimization.

WAN optimization, short for Wide Area Network optimization, is a

What is Multicast and its application in networking?

Multicast is a communication paradigm in computer networking that allows

Describe the function of GRE (Generic Routing Encapsulation).

Generic Routing Encapsulation (GRE) is a tunneling protocol developed by

What is PPPoE (Point-to-Point Protocol over Ethernet)?

PPPoE, which stands for Point-to-Point Protocol over Ethernet, is a

Differentiate between HDLC and PPP (Point-to-Point Protocol).

High-Level Data Link Control (HDLC) and Point-to-Point Protocol (PPP) are

Explain the purpose of Frame Relay.

Frame Relay is a packet-switching telecommunication service that was designed

What is QoS (Quality of Service)?

Quality of Service (QoS) refers to a set of technologies