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  • Question

  • What are the typical three different categories of VPNs?


  • Correct Answer
  • The following are the different types of VPNs : PPTP ( Point to Point Tunnel protocol ) VPN : Most commonly used VPN PPTP is a method for implementing virtual private networks PPTP uses a control channel over TCP and a GRE tunnel operating to encapsulate PPP packets Site-to-Site VPN : Site-to-site VPN is a type of VPN connection that is created between two separate locations Site-to-site VPN can be intranet based or extranet based Intranet-based site-to-site VPN is created between an organization's propriety networks, while extranet-based site-to-site VPN is used for connecting with external partner networks or an intranet L2TP ( Layer Two Tunneling Protoco) VPN : L2TP is an extension of the Point-to-Point Tunneling Protocol (PPTP) used by an Internet service provider (ISP) to enable the operation of a virtual private network over the Internet IPsec (Internet Protocol Security) : IPsec is a framework for a set of protocols for security at the network or packet processing layer of network communication SSL (Secure Sockets Layer) VPN : SSL is a form of VPN that can be used with a standard Web browser In contrast to the traditional Internet Protocol Security (IPsec) VPN, an SSL VPN does not require the installation of specialized client software on the end user's computer MPLS (Multiprotocol Label Switching) VPN : MPLS is a protocol for speeding up and shaping network traffic flows Hybrid VPN : A hybrid VPN combines Multiprotocol Label Switching (MPLS) and Internet protocol security (IPsec)-based VPNs 

    • More questions

    • 1. Which two descriptions are correct about characteristics of IPv6 unicast addressing? (Choose two) A. Global addresses start with 2000::/3. B. Link-local addresses start with FF00::/10. C. Link-local addresses start with FE00:/12. D. There is only one loopback address and it is ::1.
    • Discuss
    • 2. What are the six OSPF route types?
    • Discuss
    • 3. How many non- overlapping channels are available with 802.11b?

    • Options
    • A. 3
    • B. 12
    • C. 23
    • D. 40
      • Discuss
    • 4. Which IEEE committee has been sanctioned by WAP and is called WPA2?
    • Discuss
    • 5. When a station sends a transmission to the MAC address ff : ff : ff : ff : ff : ff, what type of transmission is it?

    • Options
    • A. Unicast
    • B. Multicast
    • C. Anycast
    • D. Broadcast
      • Discuss
    • 6. In the operation of CSMA/CD, which host(s) have priority after the expiration of the backoff algorithm?

    • Options
    • A. All hosts have equal priority
    • B. The two hosts that caused the collision will have equal priority
    • C. The host that sent the jam signal after the collision
    • D. The host with the highest MAC address
      • Discuss
    • 7. What is the Classs A Private IP address space?
    • Discuss
    • 8. What is the Class C private IP address space?
    • Discuss
    • 9. To use VLSM, what capability must the routing protocols in use possess?

    • Options
    • A. Support for multicast
    • B. Multi-protocol support
    • C. Transmission of subnet mask information
    • D. Support for unequal load balancing
      • Discuss
    • 10. If you wanted administrators to see a message when logging into the router, which command would you use?

    • Options
    • A. message banner motd
    • B. banner message motd
    • C. banner motd
    • D. message motd
      • Discuss

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