Which one of the following is a technical solution for the quality of service, speed, and security
problems facing the Internet?

A.
Random Early Detection (RED) queuing

B.
Multi-protocol label-switching (MPLS)

C.
Public Key Cryptography Standard (PKCS)

D.
Resource Reservation Protocol (RSVP)

Explanation:
The original answer to this question was RED however I think this is incorrect because of this reason.
Both Red and MPLS deal with qos/cos issues, there by increasing speed. Mpls more so the RED.

However I have not been able to find any documents that state RED is a security implementation
while MPLS is heavy used in the ISP VPN market. See this link for MPLS security
http://www.nwfusion.com/research/2001/0521feat2.html Below are the link that are formation of
the ration for this answer of B (MPLS) Congestion avoidance algorithm in which a small percentage
of packets are dropped when congestion is detected and before the queue in question overflows
completely http://www.cisco.com/univercd/cc/td/doc/cisintwk/ita/r12.htm Multiprotocol Label
Switching. Switching method that forwards IP traffic using a label. This label instructs the routers and
the switches in the network where to forward the packets based on preestablished IP routing
information http://www.cisco.com/univercd/cc/td/doc/cisintwk/ita/m12.htm Resource Reservation
Protocol. Protocol that supports the reservation of resources across an IP network. Applications
running on IP end systems can use RSVP to indicate to other nodes the nature (bandwidth, jitter,
maximum burst, and so on) of the packet streams they want to receive. RSVP depends on IPv6. Also
known as Resource Reservation Setup Protocol.
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ita/r12.htm Random Early Detection (RED) is
the recommended approach for queue congestion management in routers (Braden et al., 1998).
Although in its basic form RED can be implemented in a relatively short C program, as the speed of
ports and the number of queues per port increase, the implementation moves more and more into
hardware. Different vendors choose different ways to implement and support RED in their silicon
implementations. The degree of programmability, the number of queues, the granularity among
queues, and the calculation methods of the RED parameters all vary from implementation to
implementation. Some of these differences are irrelevant to the behavior of the algorithm-and
hence to the resulting network behavior. Some of the differences, however, may result in a very
different behavior of the RED algorithm-and hence of the network efficiency.
http://www.cisco.com/en/US/products/hw/routers/ps167/products_white_paper09186a0080091fe
4. shtml Based on label swapping, a single forwarding mechanism provides opportunities for new
control paradigms and applications. MPLS Label Forwarding is performed with a label lookup for an
incoming label, which is then swapped with the outgoing label and finally sent to the next hop.
Labels are imposed on the packets only once at the edge of the MPLS network and removed at the
other end. These labels are assigned to packets based on groupings or forwarding equivalence
classes (FECs). Packets belonging to the same FEC get similar treatment. The label is added between
the Layer 2 and the Layer 3 header (in a packet environment) or in the virtual path identifier/virtual
channel identifier (VPI/VCI) field (in ATM networks). The core network merely reads labels, applies
appropriate services, and forwards packets based on the labels. This MPLS lookup and forwarding
scheme offers the ability to explicitly control routing based on destination and source addresses,
allowing easier introduction of new IP services.
http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/xlsw_ds.htm