MEF Software-Defined Wide Area Network (SD-WAN) Practice Exam

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• How many addresses are in a /30?
• Which term is the virtual path used for underlay connectivity, with SD-WAN Edge routing based on these?
• Which term describes the SD-WAN service's logical topology as viewed by the Subscriber?
• The SD-WAN UNI Maximum L2 Frame size must be at least 1522 bytes.
• What do cloud egress/ingress metrics measure in SD-WAN?
• Which term defines the RP for control interactions in the SD-WAN framework?
• What IPv6 method assigns addresses without a server?
• Which term defines the MRP for infrastructure including network and topology view management functions?
• What is the 802.1Q minimum frame size listed?
• What is zero-touch provisioning (ZTP) in SD-WAN?
• Which feature is commonly provided by an SD-WAN edge firewall?
• What is the virtual point-to-point path the service provider creates as a component of Underlay Connectivity Service?
• A MAC address is
• How does edge device capacity influence SD-WAN design?
• In IP networking, an endpoint is defined as
• Which concept describes the time-bound uptime objective for a service in the SWVC model?
• Which term defines the reference point for dealing with business relationships between a customer and service provider?
• Which term refers to an underlay that serves as a backup to another UCS?
• What is the difference between 'managed SD-WAN' and 'do-it-yourself SD-WAN' in MEF context?
• Which routing protocol can route BETWEEN autonomous systems?
• Which item identifies the UNI that the endpoint is associated with?
• How many bits is an IPv6 address?
• Which organization sells the SD-WAN service to the subscriber?
• Which mechanism ensures data stays within approved geographic boundaries in MEF SD-WAN?
• How many addresses are in a /26?
• The network function (physical or virtual) at the Service provider side of the UNI is called what?
• Which protocol enables routing between Layer 3 and Layer 2 networks?
• What does door-to-door measurement mean in SD-WAN performance assessment?
• Which statement best describes the SWVC End Point at each UNI with SWVC End Point attributes?
• What does VPRN stand for?
• What is the impact of packet loss on business-critical applications in SD-WAN?
• BGP within autonomous systems is achieved by which type of BGP?
• Which protocol is commonly used as a southbound protocol between a software-defined network controller and network devices?
• What does path reliability mean in SD-WAN performance metrics?
• In SD-WAN security terminology, which term relates to discussing whether encryption is needed?
• Which term is described as the label for the control-interaction framework between customer and provider in the SD-WAN context?
• Which item is the three-tuple <ts, T, U> where ts is date/time, T is duration, U is a percentage between 0 and 100%?
• How does SD-WAN manage IP addressing and NAT in an overlay?
• Which UCS type describes an underlay that traverses the public internet?
• Which protocol is historically used as an Exterior Gateway Protocol to connect different networks?
• Which protocol provides single-hop link failure detection within 50 ms?
• Which elements secure direct cloud access in MEF SD-WAN?
• What types of telemetry and monitoring are typically collected in MEF SD-WAN?
• Which two methods are used to assign IPv6 addresses to nodes?
• Which identifier is used for management purposes?
• Which protocol is commonly used as the interior gateway protocol in enterprise networks?
• Which term denotes the SD-WAN service provider?
• Which term defines the RP covering control related interactions between the customer and provider's SOF?
• In MEF SD-WAN, what is the relationship between the underlay and the overlay?
• Which term is associated with management functions that expose an element view in SD-WAN resource management?
• Which of the following is a primary function of the SD-WAN Edge device?
• Which SD-WAN component selects a TVC (Tunnel Virtual Connection) over which to forward each ingress packet?
• Which pairing correctly matches a term with its description?
• A LAN is best described as
• Which term in the material is used to highlight encryption necessity topics within SD-WAN security?
• When internet breakout traffic goes directly to the internet without crossing a TVC, what is it called?
• What is tracert primarily used for?
• Which term denotes a software-based function in the SD-WAN architecture?
• Security controls in multi-tenant MEF SD-WAN goals include which approach?
• Which term represents the encryption concept commonly associated with securing SD-WAN traffic between edge devices?
• In QoS tagging, PCP stands for which term?
• Which statement is true about IPv6 address length?
• How does MEF SD-WAN address latency-sensitive applications?
• Which routing protocol uses port 520 to provide route and control plane updates?
• In the SD-WAN service model, the organization that sells the SD-WAN service to the subscriber may be different from which provider?
• What is the role of policies in MEF SD-WAN?
• Which protocol is used for exchanging device information and faults in the SD-WAN management plane?
• What is the function of a service graph in SD-WAN orchestration?
• What is the IPv6 version of RIP?
• Which protocol determines routing paths by computing shortest-path trees and exchanging link-state information?
• Which component serves as the boundary between the subscriber's UNI and the service provider's network in SD-WAN deployments?
• Which entity represents the organization that provides the services and service attributes for a SD-WAN subscriber?
• Which protocol uses AS numbers for inter-domain routing?
• Which tool is used to determine reachability and round-trip time using ICMP echo requests?
• What provides a point-to-point path using UCS?
• What is the purpose of TVC in SD-WAN connectivity?
• Which component provides centralized policy management, topology awareness, path selection, provisioning, telemetry, and end-to-end service orchestration across the SD-WAN fabric?
• How does MEF SD-WAN handle failover and high availability?
• How many IP addresses are in a /24 subnet?
• Explain ZTP onboarding flow in SD-WAN.
• Which term describes an underlay that has usage-based rate charges?
• How does MEF SD-WAN support multi-cloud connectivity?
• Which underlay transport options are typical in SD-WAN, and how do they influence path selection?
• Which underlay characteristics most influence path selection in SD-WAN?
• Which IGP uses the Dijkstra algorithm?
• Which statement best describes policy-based routing in MEF SD-WAN?
• To understand which application flow groups exist and their policies, which concept should you reference?
• BGP selects a path based on which component?
• What is the type that is an integer greater than or equal to 1522?
• What is a typical SD-WAN deployment for a branch with a single underlay?
• Which protocol operates at OSI Layer 3 and enables routing between Layer 2 networks?
• A device with at least one network interface card is called a
• Which network function delivers an egress packet to an Internet UCS by policy?
• SPRING/SR refers to which routing concept?
• What is the significance of 'service chaining' in SD-WAN?
• Which term denotes the physical network function in SD-WAN architecture?
• What term describes network services that provide connectivity between subscriber sites?
• Which combination of features mitigates packet loss in SD-WAN?
• What is a typical SD-WAN deployment for a branch with multiple underlays?
• What is the function of the SD-WAN Orchestrator in MEF SD-WAN?
• Which metric expresses the percentage of lost frames between an ingress UNI and egress UNI?
• What describes a Unique given endpoint string identifier?
• What is the identifying string for management purposes?
• Which Application Flow Criteria would be used identify traffic based only on a source address?
• Which UCS type corresponds to a non-use based underlay?
• Which plane handles telemetry collection and end-to-end service orchestration in MEF SD-WAN?
• The IP packet traveling from the subscriber toward the service provider is called the:
• Which of the following is correct about a /27 address count?
• What is the purpose of segmentation in SD-WAN security?
• Which statement correctly identifies who owns and operates the endpoint in SD-WAN?
• What term describes a pause between frames, potentially used for clock syncing or other purposes?
• In BGP, which attribute is commonly used to influence outbound route preference within an AS?
• How does MEF SD-WAN support multi-vendor environments?
• Which term describes the L2 interface UT/PT or CVLAN X?
• Which term defines the management point between business applications and service orchestration functionality needed to allow management and operations supporting LSO services?
• Which concept captures the endpoints a SWVC connects with in its topology?
• Which statement correctly describes the role of Link Aggregation Control Protocol (LACP) in SD-WAN networking?
• How does application identification occur in SD-WAN?
• Which term is associated with service orchestration management?
• What is the difference between underlay and overlay in MEF SD-WAN?
• How many addresses are in a /27?
• What are typical MEF SD-WAN service attributes?
• What are common causes of SD-WAN tunnel failure?
• How many bits are used in an MPLS label to provide over 1 million unique labels?
• How can SD-WAN support disaster recovery (DR) strategies?
• In SD-WAN terminology, what is the difference between a tunnel and a path?
• Which IPv6 address assignment method uses router advertisements without a DHCP server?
• Which term is described as the element MIRP needed to manage network resources, including element view related management functions?
• Which protocol is the path-vector routing protocol and the only current Exterior Gateway Protocol (EGP)?
• The IP packet traveling from the service provider toward the subscriber is called the:
• Who owns and operates the endpoint?
• What HA modes are supported by MEF SD-WAN in terms of tunnel usage?
• What is the underlying connectivity service?
• What is the backbone area in OSPF called?
• Which term describes the smallest UNI Layer 2 maximum frame size in this context?
• Which UCS type is described as an underlay path that is not shared and may be tenant-specific?
• Which term specifically refers to the software-defined interface between the user and the network in SD-WAN?
• Within an autonomous system, which session type is used to share routes between iBGP peers?
• Which term defines the MRP needed to manage the infrastructure including network and topology view related management functions?
• Which of the following is the IPv6 connection addressing service mechanism option?
• What control-plane protocols are commonly used in the underlay of an SD-WAN?
• What MEF SD-WAN attribute ensures logical separation between tenants in a shared environment?
• How does uptime relate to SD-WAN performance targets?
• In SD-WAN terminology, what does the underlay refer to?
• Which term would you consult to see the IP prefixes reserved by the service provider?
• What is the primary purpose of the SD-WAN UNI Identifier?
• Which statement describes a feature of IPv6 link-local addressing?
• How many addresses are in a /29?
• In SD-WAN service terms, which organization provides the SD-WAN service to the subscriber?
• Which term can be identified as the policy frame for interactions between customers and service providers in SD-WAN?
• Which concept is the list of 2-tuples< policy Name, list of criteria>?
• Which protocol measures network performance such as latency and path details?
• Explain MEF's notion of service level agreement (SLA) in SD-WAN.
• Which metric measures the percentage of time that the service is usable?
• How many usable L2 VLANs are available?
• What is the value for the size of the 802.1ad tag as listed?
• In IS-IS, into how many levels can the routing domain be divided?
• Which item maps policies to application flows and application groups?
• How do STP and dynamic routing relate to SD-WAN overlays?
• BGP between autonomous systems is achieved by which type of BGP?
• Which IPv6 address assignment methods are used to configure hosts automatically?
• Which term denotes the Software Defined - Wide Area Network User to Network Interface?
• Which option lists the 802.1Q minimum frame size as 1522 bytes?
• How are security functions typically integrated in MEF SD-WAN?
• How many IP addresses are in a /25 subnet?
• Which entity represents the organization that uses the subscribed SD-WAN services and specifies service attributes?
• Which of the following best describes the private UCS underlay?
• Once an application is identified in SD-WAN, what routing decision is made?
• Which concept is the list of 2-tuples <application flow group Name, Application Group policy>?
• What term stands for IP Prefixes reserved by the SP?
• In MEF SD-WAN, what does a service demarcation point define?
• Define Lifecycle Service Orchestration (LSO) and its relevance to MEF SD-WAN.
• Which term is the abbreviation for the encryption model used to secure data across the SD-WAN path?
• What enables interoperability across vendors in MEF SD-WAN?
• In BGP path selection, which aspect is described as the overall attribute set controlling routing decisions?
• Which protocol is used to assign IP addresses to nodes for IPv4 and IPv6?
• Which IGP uses hop count to determine route path?
• What is the purpose of a Centralized Orchestrator in SD-WAN security?
• What does FLR stand for in SD-WAN metrics?
• Which term is the named element used to manage network resources in SD-WAN management?
• In MEF SD-WAN service attributes, underlay type refers to what?
• Which term describes the default point of application for the three logical constraint locations in SD-WAN attributes?
• The number 4094 refers to which VLAN concept?
• Which term represents the security concept of protecting data in transit across SD-WAN edge devices?
• Which UCS type uses a fixed price regardless of usage?
• Which term refers to the mechanism that manages network resources and provides element-level management functions?
• In SD-WAN, what is application proxying?
• 802.1ad/Q-in-Q adds what to provide tenacity?
• How does application-aware routing work in SD-WAN?
• Which concept is the list of three tuples <application Flow Name, List of Application Flow Criteria, Application flow group>?
• SNMP is used as a northbound and southbound protocol for the SD-WAN controller to exchange device information and faults.
• Which abbreviation is used for the Private Virtual Cloud in SD-WAN terms?
• Why is MTU important in SD-WAN tunnels?
• Which term is used to discuss encryption considerations in SD-WAN security planning?
• Which attribute controls prioritization of traffic in SD-WAN service?
• What is a primary function of the firewall on SD-WAN edge devices?
• How is security managed in multi-tenant MEF SD-WAN services?
• FD stands for which metric?
• Which IPv6 address assignment methods are used? DHCP, Static and SLAAC.
• How many addresses are in a /28?
• Underlay via public connection such as the internet corresponds to which UCS type?
• Which statement correctly describes the underlay in MEF SD-WAN?
• What service attribute defines expected performance levels in MEF SD-WAN?
• BFD stands for which term?
• Which term is commonly used to describe service quality categorization in networking?
• What is the purpose of the management/analytics plane in MEF SD-WAN?
• What metric does OSPF primarily use to choose the best path?
• Which term denotes the SD-WAN Service Provider?
• What is MEF 3.0's relevance to SD-WAN?
• If you want to view the policy criteria associated with a named policy, which SWVC concept would you consult?
• For a 1522 IP packet with one service tag, the smallest UNI L2 maximum frame size is what?
• How does MEF define interoperability test criteria for SD-WAN?
• Which term describes the list of endpoints the SWVC connects to?
• Which term is used when referring to the security concept of encrypting data across the SD-WAN edge network?
• Which metrics should be tracked to measure SD-WAN performance for cloud access?
• What is the primary role of IPSec in an SD-WAN deployment?
• What is LSA's role in OSPF?
• How are firmware updates handled in MEF SD-WAN?
• IFDV stands for which metric?
• Which tunneling encapsulation is commonly used in SD-WAN overlays for non-IPsec topologies or multi-tunnel setups?
• Time required to transmit a frame from an ingress UNI to an egress UNI is called what?
• For each hop, tracert displays what information?
• What capabilities does the overlay SD-WAN fabric provide?
• Which set of QoS mechanisms are typically used in MEF SD-WAN?
• Which term is used for internet-bound traffic that exits the WAN edge directly to the internet without traversing a TVC?
• Which metric represents the time delay from frame transmission to full reception?
• How can telemetry data in MEF SD-WAN be accessed?
• What is a central advantage of centralized control over distribution in SD-WAN?
• In SD-WAN architecture, what term refers to the collection of control and data plane elements that constitute the managed SD-WAN service?
• In SD-WAN, which description best matches having multiple UNIs for service access, each with its own UNI service attributes?
• Which term describes the ‘Always a reference point between a subscriber network and a service provider’?
• In SD-WAN control planes, which statement best describes centralized control versus distributed control?
• What role does automation play in MEF SD-WAN?
• In latency improvement scenarios, what technique reduces backhaul delay?
• What does 802.1ad (Q-in-Q) add to VLAN tagging?
• When an application flow is designed for the internet rather than the SD-WAN UNI, what is it called?
• Which of the following is a valid IPv4 connection addressing service mechanism?
• Which protocol is defined by IEEE 802.1AX that coordinates communications between two hosts?
• Which term is always a reference point between a subscriber network and a service provider?
• In SD-WAN terminology, what does TVC stand for and what is its purpose?