30 Questions
What do WAN standards mainly focus on in the OSI Model?
Physical layer and data link layer
Which organization is responsible for managing modern WAN standards?
TIA/EIA
What does a Virtual Private Network (VPN) enable a company to do?
Connect easily and securely with employees worldwide
What is the main purpose of WANs according to the provided text?
Connect distributed employees and facilities worldwide
Which industry standard authority is responsible for WAN standards?
TIA/EIA
How has Distributed Network SPAN Engineering utilized Virtual Private Networks (VPNs)?
To easily and securely connect with employees and facilities globally
What is a notable disadvantage of the Hub-and-Spoke topology?
Single point of failure
Why is the Dual-homed Topology more difficult to implement compared to single-homed topologies?
Requires additional networking hardware
What distinguishes a Fully Meshed Topology from a Partially Meshed Topology?
Fully Meshed uses multiple virtual circuits
Which feature does the Dual-homed Topology prioritize over cost efficiency?
Increased fault-tolerance
In a Hub-and-Spoke Topology, how do the spoke routers communicate with each other?
Via the hub router only
What is a distinguishing characteristic of a Dual-homed Topology compared to other WAN topologies?
Enhanced network redundancy and load balancing
What are some of the benefits of an Ethernet WAN?
Enhanced business productivity
Which technology can encapsulate all types of protocols including IPv4 and IPv6 traffic?
Multiprotocol Label Switching (MPLS)
In MPLS, what is the role of a label switched router (LSR)?
Forwarding traffic based on labels
Which Ethernet service can also be referred to as Virtual Private LAN Service (VPLS)?
Metro E
Which WAN technology is commonly used to replace traditional serial point-to-point, Frame Relay, and ATM links?
Ethernet WAN
What is a role that MPLS can serve according to the text?
Providing services for QoS support, traffic engineering, redundancy, and VPNs
What is the international standard for adding high-bandwidth data to an existing cable system?
Data over Cable Service Interface Specification (DOCSIS)
What component converts RF signals to light pulses over fiber-optic cable?
Optical node
In a Fiber to the Building (FTTB) setup, where does fiber reach?
The boundary of the building
What may happen to available bandwidth as more users join a cable service according to the text?
It may drop below the expected rate
Where is the Cable Modem Termination System (CMTS) located?
Provider headend
What technology uses a coaxial cable from the cable company to provide IP services to users?
Internet-Based Connectivity Cable Technology
Which topology provides the most redundancy possible?
Dual-multihomed
What is a drawback of the Dual-homed topology?
Loss of internet connectivity during ISP outage
Which broadband solution has limited bandwidth that is distance sensitive?
DSL
What is a characteristic of a Single-homed topology?
Least expensive solution
In which topology does the organization lose internet connectivity if the ISP experiences an outage?
Dual-homed
What should be considered in determining the best broadband solution when multiple options are available?
Cost-versus-benefit analysis
Explore the purpose and characteristics of Hub-and-Spoke Topology in WANs. Learn how spoke routers communicate with each other through a central hub router, potential single point of failure, and the use of virtual circuits. Content based on Cisco materials.
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