Which of the following statements is true of a virtual private cloud (VPC)?
A) A VPC does not make use of a VPN (virtual private network).
B) An organization generally stores its most sensitive data on a VPC.
C) A VPC can be accessed only from within an organization.
D) A VPC can be built on public cloud infrastructure.
22) Which of the following is a difference between a virtual private network (VPN) and a virtual private cloud (VPC)?
A) Unlike a VPN, a VPC uses encrypted connections between the users and the server.
B) A VPN can be accessed over the Internet, but a VPC cannot be accessed over the Internet.
C) Unlike a VPC, a VPN connects users to an organization’s internal IS.
D) A VPC provides the advantages of cloud storage, but a VPN by itself cannot provide these advantages.
23) Which of the following is an advantage of using a private cloud over a virtual private cloud (VPC)?
A) Unlike a VPC, the infrastructure required for a private cloud can be built and operated easily.
B) A VPC gains significantly by using an elastic load balancer, whereas a private cloud does not use an elastic load balancer.
C) A VPC cannot be accessed from outside the organization, but a private cloud can be accessed from outside the organization.
D) Unlike a VPC, a private cloud does not require permission from regulating bodies to host sensitive data.
24) What is a VPN (virtual private network)?
A) It is a markup language that fixes several HTML deficiencies and is commonly used for program-to-program interaction over the Web.
B) It is an add-on to browsers that was developed by Adobe and is useful for providing animation, movies, and other advanced graphics inside a browser.
C) It is the most common language for defining the structure and layout of web pages.
D) It uses the Internet to create secure point-to-point connections.
25) Which of the following is true of a VPN (virtual private network)?
A) A VPN communication is secure even though it is transmitted over the public Internet.
B) One disadvantage of a VPN is that it does not encrypt messages.
C) Remote access is difficult in case of a VPN.
D) It is a physical, private pathway over a public or shared network from the client to the server.
26) Which of the following is a characteristic of a virtual private network (VPN)?
A) It establishes a physical connection between the client and the server, called tunnel.
B) It sends encrypted messages over the public Internet.
C) A VPN can be accessed from only one geographical location.
D) VPNs cannot be accessed over the Internet.
27) Which of the following is likely to be a consequence of cloud computing in the future?
A) Organizations will prefer to setup their own computing infrastructure.
B) The cost of obtaining elastic resources will decrease.
C) Jobs related to server operations at small organizations will increase.
D) The number of technology-based startups will stagnate.
28) A system uses cameras and motion-sensing equipment to issue tickets for traffic violations. This system is an example of __.
A) videotelephony
B) telesurgery
C) telelaw enforcement
D) GPS augmentation
29) Using https instead of http __.
A) shows the other users on that network who are accessing the same site
B) allows a packet sniffer to see only the site visited and nothing further
C) connects a user to the version of the site hosted on a private cloud
D) detects the presence of packet sniffers in the vicinity
The Correct Answer and Explanation is :
Answers and Explanations:
1. Which of the following statements is true of a virtual private cloud (VPC)?
Answer: D) A VPC can be built on public cloud infrastructure.
Explanation: A Virtual Private Cloud (VPC) operates on public cloud infrastructure but offers isolation and dedicated resources to the organization. This allows organizations to leverage public cloud resources while maintaining some level of privacy and control.
2. Difference between a VPN and a VPC?
Answer: D) A VPC provides the advantages of cloud storage, but a VPN by itself cannot provide these advantages.
Explanation: A VPN enables secure communication over the Internet but does not inherently provide cloud storage or scalability benefits. A VPC, on the other hand, is designed for cloud environments and offers additional capabilities like cloud storage, compute resources, and elasticity.
3. Advantage of private cloud over VPC?
Answer: D) Unlike a VPC, a private cloud does not require permission from regulating bodies to host sensitive data.
Explanation: Private clouds are fully managed and controlled by the organization, allowing complete oversight of sensitive data without relying on public cloud providers and their regulations.
4. What is a VPN?
Answer: D) It uses the Internet to create secure point-to-point connections.
Explanation: A VPN establishes secure, encrypted communication over public networks, creating a private connection between endpoints.
5. True statement about a VPN?
Answer: A) A VPN communication is secure even though it is transmitted over the public Internet.
Explanation: VPNs use encryption to secure data transmitted over public networks, ensuring confidentiality and integrity.
6. Characteristic of a VPN?
Answer: B) It sends encrypted messages over the public Internet.
Explanation: VPNs secure data by encrypting it before transmission, providing privacy even when the connection is over the public Internet.
7. Consequence of cloud computing?
Answer: B) The cost of obtaining elastic resources will decrease.
Explanation: Cloud computing economies of scale and competition between providers are driving down costs for scalable and elastic resources.
8. Example of traffic enforcement system?
Answer: C) Telelaw enforcement.
Explanation: Systems using cameras and sensors for automated traffic violation enforcement fall under telelaw enforcement, which leverages technology for legal compliance.
9. Using HTTPS instead of HTTP?
Answer: B) Allows a packet sniffer to see only the site visited and nothing further.
Explanation: HTTPS encrypts the data between the client and server, making it difficult for packet sniffers to intercept sensitive information like login credentials. They can see the domain visited but not the specific content.
These answers and explanations cover the key differences, advantages, and functionalities of technologies like VPNs, VPCs, and HTTPS, reflecting their roles in secure and efficient digital communication.