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Computer Network
Computer Networks Interview
Quiz 1
Solution
Q.1.
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) VPN
c) VSN
d) VSPN
Q.2.
When were VPNs introduced into the commercial world?
a) Early 80’s
b) Late 80’s
c) Early 90’s
d) Late 90’s
Q.3.
What protocol is NOT used in the operation of a VPN?
a) PPTP
b) IPsec
c) YMUM
d) L2TP
Q.4.
Which of the following statements is NOT true concerning VPNs?
a) Financially rewarding compared to leased lines
b) Allows remote workers to access corporate data
c) Allows LAN-to-LAN connectivity over public networks
d) Is the backbone of the Internet
Q.5.
Traffic in a VPN is NOT ____________
a) Invisible from public networks
b) Logically separated from other traffic
c) Accessible from unauthorized public networks
d) Restricted to a single protocol in IPsec
Q.6.
VPNs are financially speaking __________
a) Always more expensive than leased lines
b) Always cheaper than leased lines
c) Usually cheaper than leased lines
d) Usually more expensive than leased lines
Q.7.
Which layer 3 protocols can be transmitted over an L2TP VPN?
a) Only IP
b) Only IPX
c) Only ICMP
d) IP and IPX
Q.8.
ESP (Encapsulating Security Protocol) is defined in which of the following standards?
a) IPsec
b) PPTP
c) PPP
d) L2TP
Q.9.
Lwas developed by which company?
a) Microsoft
b) Cisco
c) Blizzard Entertainment
d) IETF
Q.10.
Which layer of the OSI reference model does PPTP work at?
a) Layer 1
b) Layer 2
c) Layer 3
d) Layer 4
Q.11.
Which layer of the OSI reference model does IPsec work at?
a) Layer 1
b) Layer 2
c) Layer 3
d) Layer 4
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