Computer Networks Questions & Answers – Virtual Private MCQ أسئله شبكات بالأجابات الجزء السابع والعشرون

Computer Networks Questions & Answers – Virtual Private

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

Answer: b
Explanation: VIRTUAL PRIVATE NETWORK.

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

Answer: d
Explanation: LATE 90’S.

3. What protocol is NOT used in the operation of a VPN?
a) PPTP
b) IPsec
c) YMUM
d) L2TP

Answer: c
Explanation: YNUM.

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

Answer: d

Explanation: virtual packet network is not a backbone of the internet.

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

Answer: c
Explanation: Because it is secured with the IP address.

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

Answer: c
Explanation: It is very cheap.

7. Which layer 3 protocols can be transmitted over a L2TP VPN?

a) IP
b) IPX
c) Neither IP or IPX
d) Both IP or IPX

Answer: d

Explanation: Data roming layer.

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

a) IPsec
b) PPTP
c) PPP
d) L2TP

Answer: a
Explanation: It is the security type of the IPsec.

9. L2F was developed by which company?

a) Microsoft
b) Cisco
c) Blizzard Entertainment
d) IETF

Answer: b
Explanation: Cisco is the second best company to design and make the computer networks.

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

a) Layer 1
b) Layer 2
c) Layer 3
d) Layer 4

Answer: b
Explanation: Presentation layer.

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