Virtual Private Networks Interview/Exam Question-Answer

Q.1 When were VPNs introduced into the commercial world?

       A. Early 90’s

       B. Late 90’s

       C. Early 80’s

       D. Late 80’s

Ans : Late 90’s


Q.2 Hashing Algorithm includes MD5, SHA?

       A. True

       B. False

Ans : True


Q.3 A ___________ is an extension of an enterprise’s private intranet across a public network such as the internet, creating a secure private connection.

       A. VNP

       B. VSN

       A. VPN

       B. VSPN

Ans : VPN


Q.4 Encryption Algorithm includes DES, 3DES, AES?

       A. True

       B. False

Ans : False


Q.5 Which of the following statements is NOT true concerning VPNs?

       A. Allows remote workers to access corporate data

       B. Allows remote workers to access corporate data

       C. Which of the following statements is NOT true concerning VPNs?

       D. Is the backbone of the Internet

Ans : Is the backbone of the Internet


Q.6 What protocol is NOT used in the operation of a VPN?

       A. PPTP

       B. IPsec

       C. YMUM

       D. L2TP

Ans : YMUM


Q.7 VPNs are financially speaking __________.

       A. Always cheaper than leased lines

       B. Always more expensive than leased lines

       C. Usually more expensive than leased lines

       D. Usually cheaper than leased lines

Ans : Usually cheaper than leased lines


Q.8 Traffic in a VPN is NOT ____________.

       A. Logically separated from other traffic

       B. Invisible from public networks

       C. Restricted to a single protocol in IPsec

       D. Accessible from unauthorized public networks

Ans : Accessible from unauthorized public networks


Q.9 ESP (Encapsulating Security Protocol) is defined in which of the following standards?

       A. IPsec

       B. PPTP

       C. L2TP

       C. PPP

Ans : IPsec


Q.10 Which layer 3 protocols can be transmitted over an L2TP VPN?

       A. Only IPX

       B. Only ICMP

       C. Only IP

       D. IP and IPX

Ans : Only IPX


Q.11 Which layer of the OSI reference model does PPTP work at?

       A. Layer 1

       B. Layer 4

       C. Layer 2

       D. Layer 3

Ans : Layer 2


Q.12 L2F was developed by which company?

       A. Microsoft

       B. IETF

       C. Cisco

       D. Blizzard Entertainment

Ans : Cisco


Q.13 Which layer of the OSI reference model does IPsec work at?

       A. Layer 1

       B. Layer 4

       C. Layer 2

       D. Layer 3

Ans : Layer 3


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