MPLS and Segment Routing

An engineer is configuring MPLS LDP on a Cisco router. The router uses downstream unsolicited mode with liberal label retention. Which behavior describes the label distribution and retention on this router?

In MPLS, which operation is performed when a packet arrives at a transit router and the top label matches the router's own label assigned for the FEC?

An engineer is deploying MPLS-TE with FRR using the 1:1 detour method. Which statement about link protection in this scenario is true?

In Segment Routing (SR-MPLS), which IGP TLV is used by IS-IS to advertise the Node SID for a prefix?

Which RSVP message is used to tear down an MPLS-TE LSP by being sent from the ingress toward the egress?

An engineer configures an SR-TE policy with a segment list containing adjacency SIDs. The required path includes a strict loose hop through a specific router. Which segment type should be used for the strict hop?

In SRv6, which Segment Identifier (SID) format is used to encode a function that performs IPv6 decapsulation and forwarding?

What is the primary purpose of the SRGB (Segment Routing Global Block) when configuring SR-MPLS on a network?

In EVPN-VPWS, which component is used to identify a multi-homed Ethernet segment and enable load balancing and fast convergence?

A service provider is migrating from LDP to SR-MPLS. Which mechanism allows a router to allocate labels for prefixes using both LDP and SR simultaneously during the migration?

In MPLS-TE, what is the purpose of the Explicit Route Object (ERO) in the RSVP PATH message?

An engineer configures an SRv6 SID with the behavior End.DT6. What is the primary function of this SID?

An engineer is troubleshooting an MPLS-TE tunnel that is not coming up. The configuration includes an explicit path with strict hops. Which TWO conditions could prevent the tunnel from being established? (Choose two.)

In SR-MPLS, which THREE statements correctly describe the properties of Adjacency SIDs? (Choose three.)

An engineer is configuring EVPN IRB (Integrated Routing and Bridging) to provide IP connectivity between tenants across a service provider network. Which THREE components are essential for EVPN IRB operation? (Choose three.)

In MPLS, which label operation is performed by a Penultimate Hop Popping (PHP) router?

Which label distribution mode does LDP use by default in Cisco IOS?

Which RSVP-TE message is used to reserve resources along the path and includes the Explicit Route Object (ERO)?

In Segment Routing for MPLS (SR-MPLS), which TLV is used in IS-IS to advertise the Node SID?

Which label is used for an Adjacency SID in SR-MPLS?

What is the purpose of Constrained Shortest Path First (CSPF) in MPLS-TE?

In SRv6, what is the function of the 'End.DT4' behavior?

Which RSVP-TE filter style is commonly used for MPLS-TE tunnels to allow multiple senders on the same session?

In MPLS-TE Fast Reroute (FRR), what is a 'detour'?

Which EVPN component ensures that only one of the multi-homed PEs forwards traffic to the CE for a given Ethernet segment?

In SR-MPLS, what is the purpose of the SRGB (Segment Routing Global Block)?

Which SRv6 SID behavior is used to support EVPN-IRB (Integrated Routing and Bridging) for L2VPN with bridging?

Which two statements about LDP liberal label retention are true? (Choose two.)

Which three are characteristics of SR-TE policies? (Choose three.)

Which two are benefits of using EVPN-VPWS over traditional VPWS? (Choose two.)

In MPLS, what is the term for the operation where the top label is removed and replaced with a new label?

Which LDP label distribution mode is characterized by a router advertising labels for all prefixes in its routing table to all neighbors, regardless of whether they are needed?

In RSVP-TE, which message is sent by the headend router along the explicit route to reserve resources and establish an LSP?

An engineer is configuring MPLS-TE FRR for link protection. Which of the following options describes a 1:1 protection scheme where a dedicated detour LSP is created for each protected LSP?

In Segment Routing over MPLS (SR-MPLS), how are Prefix-SIDs advertised in IS-IS?

What is the default range of the Segment Routing Global Block (SRGB) on Cisco IOS XR?

Which SRv6 endpoint behavior is used for L3VPN decapsulation and IP forwarding to the destination in a VRF?

In SR-TE, a headend router is configured with an SR Policy that includes an explicit candidate path with segment list [16001, 16003, 16005]. What does this segment list represent?

Which of the following best describes the function of CSPF in MPLS-TE?

In EVPN with SRv6, which SID behavior is used for integrated routing and bridging (IRB) to forward packets between the IP fabric and the Ethernet segment?

In MPLS, which forwarding table is used to determine the outgoing label and interface for a labeled packet?

Which RSVP reservation style is most commonly used in MPLS-TE to allow sharing of resources among multiple LSPs of the same session?

Which TWO statements about MPLS label operations are correct? (Choose two.)

Which THREE functions are provided by EVPN multi-homing? (Choose three.)

Which TWO statements about SR-MPLS compared to LDP are correct? (Choose two.)

In MPLS, which operation occurs when a router receives a labeled packet and replaces the top label with a new label before forwarding?

Which LDP mode uses downstream unsolicited label distribution and liberal label retention?

An engineer configures an MPLS-TE tunnel with a bandwidth of 100 Mbps and an explicit path that avoids a specific link. Which RSVP message carries the Explicit Route Object (ERO) to signal the path?

Which SR-MPLS SID is advertised by an IS-IS router to identify a specific link and is distributed only to adjacent neighbors?

In SRv6, which SID behavior is used to achieve L3VPN IPv6 VPN forwarding, where the SID points to a VPN instance and performs decapsulation and IPv6 lookup?

Which component of an MPLS-TE FRR (Fast Reroute) configuration provides protection for the next-hop node by bypassing it?

An engineer wants to configure SR-TE without using RSVP. Which mechanism does SR-TE use to specify the explicit path?

In EVPN-VPWS, which identifier is used to uniquely identify an Ethernet Segment for multi-homing?

In CSPF (Constrained Shortest Path First) for MPLS-TE, which of the following is NOT a typical constraint considered during path computation?

Which MPLS label operation is performed by the penultimate hop router in PHP (Penultimate Hop Popping)?

An SRv6 SID is composed of three parts: Locator, Function, and Arguments. Which part identifies the SRv6-capable node in the network?

In EVPN with Integrated Routing and Bridging (IRB), which type of interface is used to connect the bridge domain to the IP-VRF for inter-subnet forwarding?

Which TWO statements correctly describe RSVP-TE reservation styles? (Choose two.)

Which TWO are characteristics of SR-MPLS when compared to LDP-based MPLS? (Choose two.)

Which THREE are EVPN multi-homing functions? (Choose three.)

An engineer is configuring MPLS LDP on a Cisco router. The router is using downstream unsolicited mode and liberal label retention. Which statement correctly describes the label advertisement behavior?

In an MPLS-TE tunnel configuration, which RSVP message carries the Explicit Route Object (ERO) that specifies the explicit path the tunnel must follow?

A network operator is implementing segment routing (SR-MPLS) using OSPF as the IGP. Which OSPF TLV is used to advertise the Node SID (Prefix SID) for a router's loopback address?

Which label operation is performed on a router when an MPLS packet arrives with a top label that matches a local label assigned to a directly connected prefix?

An engineer is configuring RSVP-TE fast reroute for link protection. Which protection method uses a pre-configured bypass tunnel that protects multiple LSPs on the same link?

In SRv6, which behavior is used for L3VPN decapsulation (removing the outer IPv6 header and SRH, and forwarding the inner IPv4 packet based on the VPN routing table)?

What is the purpose of the SRGB (Segment Routing Global Block) in SR-MPLS?

In an EVPN-VPWS (Virtual Private Wire Service) deployment, which identifier is used to uniquely identify an Ethernet Segment for multi-homing?

Which component of SRv6 SID format is used to identify the specific function (e.g., End, End.X) on the node?

In SR-TE, a headend router is configured with an SR Policy using an explicit candidate path that includes a segment list [100, 200, 300]. If all routers have the same SRGB starting at 10000, what is the actual outgoing label stack for the first segment?

Which label distribution protocol is replaced by segment routing in SR-MPLS deployments?

When configuring an MPLS-TE tunnel with affinity/constraint-based routing, what is the effect of assigning a link attribute of 'red' and setting the tunnel's affinity to include 'red' with the 'include-all' keyword?

An engineer is designing an EVPN IRB (Integrated Routing and Bridging) solution. Which two statements about EVPN IRB are correct? (Choose two.)

Which three statements correctly describe the SRv6 micro-SID (uSID) concept? (Choose three.)

In an MPLS network using RSVP-TE for traffic engineering, which two mechanisms can be used for fast reroute (FRR) protection? (Choose two.)

An engineer is configuring MPLS on a Cisco router. Which label operation is performed on the ingress LSR when a packet enters the MPLS domain?

In an MPLS network using LDP, which LDP mode allocates a label for every prefix in the routing table and advertises it to all LDP neighbors, regardless of whether the neighbor requests it?

An MPLS TE tunnel is configured with an explicit path. Which RSVP message is used by the headend to signal the path and carry the Explicit Route Object (ERO) listing the hops?

In RSVP-TE, which filter spec style allows multiple senders to share the same reserved resources on a link, as long as their flows do not exceed the reservation?

Which MPLS TE mechanism provides link protection by pre-establishing a backup LSP that bypasses a specific link, activated when the link fails?

In Segment Routing (SR-MPLS), a label allocated from the Segment Routing Global Block (SRGB) for a specific router's loopback is known as what?

An engineer is configuring SR-MPLS in an IS-IS network. Which IS-IS TLV is used to advertise the Segment Routing Global Block (SRGB) and Node-SID assignments?

In SRv6, which endpoint behavior is used for decapsulation and forwarding to a Layer 3 VPN IPv4 destination, removing the outer IPv6 header?

In SRv6 micro-SID (uSID) compression, which part of the SID is used to carry a compressed instruction set, enabling efficient forwarding with a shorter SID list?

Which component in EVPN is used to uniquely identify an Ethernet segment across multiple PE devices in a multi-homing scenario?

In EVPN multi-homing with all-active mode, which mechanism is used to elect a designated forwarder (DF) for broadcast, unknown unicast, and multicast (BUM) traffic on a given Ethernet segment?

An SR-TE policy is configured with a candidate path containing multiple segment lists. Which selection criteria is used to choose the active segment list among the candidate paths?

Which TWO statements about MPLS label operations are correct? (Choose two.)

Which THREE are valid SRv6 endpoint behaviors for VPN services? (Choose three.)

Which THREE are mechanisms used in EVPN to support multi-homing and load balancing? (Choose three.)

In an MPLS network using LDP, which statement correctly describes the label distribution behavior for a given FEC?

In SR-MPLS, which mechanism replaces LDP for label distribution?

An engineer configures an RSVP-TE tunnel with a bandwidth of 100 Mbps and an explicit path that excludes a specific interface. The tunnel fails to come up. Which term describes the path computation method used by RSVP-TE to find a feasible path given these constraints?

In SR-MPLS, when a router receives a packet with an MPLS label corresponding to an Adjacency SID, what operation does it perform?

An engineer is implementing MPLS-TE Fast Reroute for link protection. Which protection method provides a backup tunnel that bypasses a specific link, protecting all LSPs traversing that link?

In Segment Routing over IPv6 (SRv6), what is the function of the 'Locator' part of an SRv6 SID?

An operator is deploying EVPN-VPWS over an MPLS network. Which component uniquely identifies a multihomed Ethernet segment in EVPN?

In SR-MPLS TE, a headend router is configured with an SR Policy that includes an explicit candidate path with segment list [16001, 16003]. What do these numbers represent?

Which LDP label retention mode stores all received label bindings even if they are not currently used for forwarding?

In SRv6, which endpoint behavior is used for decapsulating the outer IPv6 header and performing an IPv4 lookup (e.g., for L3VPN)?

An engineer is troubleshooting an MPLS network where some routers are not exchanging labels via LDP. Which two steps are most appropriate for diagnosing the issue? (Choose two.)

In SR-MPLS traffic engineering, which three components are essential for configuring an SR Policy on a headend router? (Choose three.)

In EVPN multi-homing, which two mechanisms are used to avoid duplicate packets and ensure efficient forwarding? (Choose two.)

Which three statements accurately describe the benefits of Segment Routing over RSVP-TE for traffic engineering? (Choose three.)

Which two actions are performed by an MPLS label edge router (LER) when it receives an unlabeled IP packet destined for a prefix with an LSP? (Choose two.)

A network engineer is designing a Segment Routing over IPv6 (SRv6) deployment. Which TWO statements are true about the SRv6 SID format and behaviors? (Choose two.)

An SP network uses RSVP-TE for MPLS traffic engineering with FRR link protection. Which THREE statements are correct about RSVP-TE operation and FRR? (Choose three.)

A service provider is transitioning from LDP-based MPLS to Segment Routing (SR-MPLS). Which TWO statements correctly describe differences or interoperability considerations? (Choose two.)

An engineer is configuring MPLS LDP on a Cisco router. Which TWO statements about LDP operation are correct? (Choose two.)

When deploying EVPN with SR-MPLS or SRv6, which THREE statements about EVPN multi-homing and related concepts are correct? (Choose three.)