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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. 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
    • 2. At which layer of the OSI model would you assume the problem is if you type show interface serial 1 and receive the following message? Serial 1 is down, line protocol is down

    • Options
    • A. Physical layer
    • B. Data Link layer
    • C. Network layer
    • D. None
    • Discuss
    • 3. Which commands loads a new version of the Cisco IOS into a router?

    • Options
    • A. copy flash ftp
    • B. copy ftp flash
    • C. copy flash tftp
    • D. copy tftp flash
    • Discuss
    • 4. What is the command to copy a Cisco IOS to a TFTP server?
    • Discuss
    • 5. When a PC sends a packet to another PC in a remote network, what destination IP address and MAC address will be in the frame that it sends to its default gateway?
    • Discuss
    • 6. What is the administrative distance of OSPF?

    • Options
    • A. 90
    • B. 100
    • C. 110
    • D. 120
    • Discuss
    • 7. With which network type will OSPF establish router adjacencies but not perform the DR/BDR election process?

    • Options
    • A. Point-to-Point
    • B. Backbone area 0
    • C. Broadcast multi-access
    • D. Non-broadcast multi-access
    • Discuss
    • 8. A network administrator needs to configure a router with a distance-vector protocol that allows classless routing. Which of the following satisfies those requirements?

    • Options
    • A. IGRP
    • B. OSPF
    • C. RIPv1
    • D. EIGRP
    • Discuss
    • 9. You get a call from a network administrator who tells you that he typed the following into his router: Router (config) #router ospf 1 Router (config-router) # network 10.0.0.0. 255. 0.0.0 area 0 He tells you he still can't see any routes in the routing table. What configuration error did the administrator make?

    • Options
    • A. The wildcard mask is incorrect
    • B. The OSPF area is wrong
    • C. The OSPF Process ID is incorrect.
    • D. The AS configuration is wrong
    • Discuss
    • 10. Which proprietary Cisco STP extensions would put a switch port into err-disabled if a BPDU is received on this port?
    • Discuss


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