Question 1

You are designing an optical network. Your goal is to ensure that your design contains the highest degree of resiliency. In which two ways will you leverage a wavelength-switched optical network solution in your network design? (Choose two.)
A) a wavelength-switched optical network assigns routing and wavelength information
B) a wavelength-switched optical network takes linear and nonlinear optical impairment calculation into account
C) a wavelength-switched optical network guarantees restoration based strictly on the shortest path available
D) a wavelength-switched optical network eliminates the need for dispersion compensating units in a network

Accepted Answer

A wavelength-switched optical network assigns routing and wavelength information, which helps in managing and rerouting traffic efficiently. It also takes into account linear and nonlinear optical impairments, which is crucial for maintaining signal quality and network resiliency.

Question 2

If a network design must support rapid convergence on half-duplex interfaces, which IEEE 802.1w capability should be used?
A) root guard
B) proposal-agreement handshake
C) loop guard
D) UplinkFast

Accepted Answer

The answer of If a network design must support rapid...

Question 3

Which mechanism should be added to a network design to identify unidirectional Spanning Tree Protocol failures through BPDU loss?
A) UDLD
B) loop guard
C) BPDU guard?
D) root guard

Accepted Answer

The answer of Which mechanism should be added to a...

Question 4

When creating a design plan for IPv6 integration, you decide to use stateless encapsulation of IPv6 packets into IPv4 tunnels between subscriber CPEs and a border relay. Which deployment technique allows for this functionality?
A) 6rd
B) Dual-Stack Lite
C) 4rd
D) DSTM

Accepted Answer

6rd (IPv6 Rapid Deployment) is a technique that allows IPv6 packets to be encapsulated within IPv4 packets for transmission over an IPv4 network, using stateless encapsulation.

Question 5

You are the SAN designer for the ABC Company. Due to budget constraints, there is increased pressure by management to further optimize server utilization by implementing virtualization technologies on all servers and increase virtual machines density. Faced with some SAN challenges, the server team requests your help in the design and implementation of the SAN in the new virtualized environment. In which two ways can NPIV be used in your proposed design? (Choose two.)
A) NPIV is used to assign multiple FCIDs to a single N Port.
B) NPIV is used to define and bind multiple virtual WWNs (VIs) to a single physical pWWN.
C) You recommend NPIV so that hosts can be members of different zones.
D) NPIV can be used to allow multiple applications on the same port to use different IDs in the same VSAN.

Accepted Answer

The answer of You are the SAN designer for the...

Question 6

When developing an MVPN design, which performance and scalability consideration must be taken into account?
A) CE end-to-end PIM adjacency establishment
B) multicast data sent to all PE routers on the default MDT
C) RP placement in the multicast VRF
D) RP placement in the customer network

Accepted Answer

In MVPN (Multicast VPN) design, multicast data is initially sent to all PE routers on the default MDT (Multicast Distribution Tree), which can impact performance and scalability. This is because it can lead to unnecessary data replication and bandwidth usage across the network.

Question 7

You are designing a wireless LAN with the following components: Site survey results show negligible foreign WiFi and non-WiFi interference. What is the best method to decrease duty cycle (radio frequency utilization) and increase overall wireless LAN client performance for this design?
A) Disable all data rates below 12 Mb/s on all access points.
B) Decrease radio transmit power on all access points that report a high duty cycle.
C) Increase radio transmit power on all access points that report a high duty cycle.
D) Disable all data rates above 12 Mb/s on all access points.
E) Increase radio transmit power on all access points.

Accepted Answer

Disabling lower data rates forces clients to connect at higher speeds, reducing airtime usage and improving overall performance.

Question 8

A metro service provider is planning Resilient Ethernet Protocol for his backbone. Which two aspects must be considered before the network design is finalized? (Choose two.)
A) Two Resilient Ethernet Protocol segments can be connected redundantly at two points. One connection will be blocked, using the Spanning Tree Protocol defined in IEEE 802.1D.
B) UniDirectional Link Detection Protocol can be enabled on Resilient Ethernet Protocol interfaces to detect unidirectional failures.
C) The guaranteed convergence recovery time is less than 50 ms for the local segment.
D) A Resilient Ethernet Protocol segment is limited to a maximum of seven devices.
E) VLAN load balancing for optimal bandwidth usage is supported in any Resilient Ethernet Protocol segment.

Accepted Answer

The answer of A metro service provider is planning Resilient...

Question 9

Tesla Radio GmbH is going to build a new research lab network based on a set of switches that would connect to their existing enterprise network. They are considering a design that would guarantee loop- free behavior within the set of switches. The design would also allow the group of switches to seem like a single switch to the enterprise network, because it is owned by a separate administrative group. Which Spanning Tree Protocol should be used to support the design requirements?
A) IEEE 802.1w
B) IEEE 802.1D
C) IEEE 802.1s
D) IEEE 802.1p

Accepted Answer

IEEE 802.1s, also known as Multiple Spanning Tree Protocol (MSTP), allows multiple VLANs to be mapped to a single spanning tree instance, which can make a group of switches appear as a single switch to the enterprise network, while ensuring loop-free topology.

Question 10

A company wants to use SSM as the multicast routing protocol inside its network. Some of its multicast applications do not support IGMPv3. In which two ways can the mapping be done when these applications send IGMPv2 join messages? (Choose two.)
A) The Layer 2 switches can send a request to a DNS server.
B) The Layer 3 multicast routers can send a request to a DNS server.
C) The mapping can be done statically at the Layer 2 switches.
D) The mapping can be done statically at the Layer 3 multicast routers.
E) The Layer 2 switches can transform the IGMPv2 join to an IGMPv3lite join.
F) The Layer 3 multicast routers can transform the IGMPv2 join to an IGMPv3lite join.

Accepted Answer

The answer of A company wants to use SSM as...

Question 11

A company plans to use BFD between its routers to detect a connectivity problem inside the switched network. An IPS is transparently installed between the switches. Which packets should the IPS forward for BFD to work under all circumstances?
A) IP packets with broadcast IP source addresses
B) IP packets with identical source and destination IP addresses
C) fragmented packets with the do-not-fragment bit set
D) IP packets with the multicast IP source address
E) IP packets with the multicast IP destination address
F) IP packets with the destination IP address 0.0.0.0

Accepted Answer

BFD uses IP packets with identical source and destination IP addresses to detect connectivity problems.

Question 12

You are designing a Group Encrypted Transport Virtual Private Network solution consisting of 30 group members. Which measure helps protect encrypted user traffic from replay attacks?
A) counter-based anti-replay
B) time-based anti-replay
C) nonce payload
D) RSA-encrypted nonce
E) digital certificates

Accepted Answer

The answer of You are designing a Group Encrypted Transport...

Question 13

A company has these requirements for access to their wireless and wired corporate LANs using 802.1x: Which solution meets these requirements?
A) Protected Extensible Authentication Protocol/Microsoft Challenge Handshake Authentication Protocol Version 2 with user authentication
B) Extensible Authentication Protocol-Transport Layer Security with machine authentication
C) Extensible Authentication Protocol-Transport Layer Security with user authentication
D) Protected Extensible Authentication Protocol/Microsoft Challenge Handshake Authentication Protocol Version 2 with machine authentication

Accepted Answer

Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) with machine authentication provides a strong security mechanism by using certificates for authentication, which is suitable for both wireless and wired LANs.

Question 14

You are designing a network for a branch office. In order to improve convergence time, you are required to use the BFD feature. Which four routing protocols can you use to facilitate this? (Choose four.)
A) EIGRP
B) IS-IS
C) BGP
D) static
E) RIP

Accepted Answer

The answer of You are designing a network for a...

Question 15

In an MPLS-VPN environment, what is the effect of configuring an identical set of route targets for a particular VRF, but then configuring nonidentical route distinguisher across multiple PE devices?
A) The routes will be correctly handled by the control plane, but there will be instances where routes take up twice as much memory.
B) The routes will propagate to the remote PE, but the PE will never install them in its forwarding table.
C) The routes will be rejected by the remote PE because they have a different RD than its routes.
D) The routes will not even be sent to any remote PE with a different RD.

Accepted Answer

When identical route targets are used, the control plane can handle the routes correctly, but using different route distinguishers can lead to increased memory usage as routes are stored separately for each RD.

Question 16

You are the lead IP/MPLS network designer of a service provider called XYZ. You are leading a design discussion regarding IPv6 implementation in the XYZ MPLS network, using MPLS 6PE/6VPE techniques. Currently, XYZ provides IPv4 multicast services over an MPLS network by using MVPN, and would like to provide parallel IPv6 multicast services. Which three multicast solutions should be enabled? (Choose three.)
A) native IPv6, only for multicast services
B) MPLS 6PE/6VPE, because it provides IPv6 multicast support by default
C) an overlay model using Layer 2 MPLS tunnels
D) PIM-DM to enable IPv6 multicast in conjunction with MPLS 6PE/6VPE
E) MVPN for IPv6 multicast service

Accepted Answer

The answer of You are the lead IP/MPLS network designer...

Question 17

ACME Corporation is integrating IPv6 into their network, which relies heavily on multicast distribution of data. Which two IPv6 integration technologies support IPv6 multicast? (Choose two.)
A) 6VPE
B) 6PE
C) dual stack
D) ISATAP
E) 6to4
F) IPv6INIP

Accepted Answer

The answer of ACME Corporation is integrating IPv6 into their...

Question 18

Network designers plan to interconnect two geographically separated data centers using an Ethernet- over-MPLS pseudowire. Within that design, the link between the sites is stable, there are no apparent loops in the topology, and the root bridges for the respective VLANs are stable and unchanging. What additional aspect of the design should be adjusted to mitigate the chance of connectivity issues to the peer data center when the connection takes place?
A) Enable 802.1d on one data center, and 802.1w on the other.
B) Ensure that the spanning tree diameter for one or more VLANs is not too large.
C) Enable UDLD on the link between the data centers.
D) Enable root guard on the link between the data centers.

Accepted Answer

Ensuring that the spanning tree diameter for one or more VLANs is not too large helps prevent potential connectivity issues by reducing the time it takes for the spanning tree protocol to converge, which is crucial in a geographically separated setup.

Question 19

What is a design aspect regarding multicast transport for MPLS Layer 3 VPNs using the Rosen Draft implementation?
A) LDP is the multicast control plane protocol.
B) Multicast traffic is forwarded over GRE tunnels.
C) Multicast traffic is forwarded over LDP or RSVP signaled LSPs.
D) Using the MDT SAFI in BGP ensures that PIM can be disabled in the core.

Accepted Answer

The Rosen Draft implementation for multicast in MPLS Layer 3 VPNs uses GRE tunnels to forward multicast traffic, as it relies on PIM for multicast distribution.

Question 20

In order to meet your service level agreement, your network designer created a design solution that includes interface dampening. In which two ways will interface dampening benefit your overall network design? (Choose two.)
A) Interface dampening uses an exponential backoff algorithm to suppress event reporting to the upper- level protocols.
B) When the interface is dampened, further link events are not reported to the upper protocol modules.
C) When the interface is dampened, further link events are reported to the upper protocol module.
D) Periodic interface flapping that affects the routing system as a whole should have a period shorter than the system convergence time.

Accepted Answer

Interface dampening helps stabilize the network by suppressing frequent link state changes using an exponential backoff algorithm, preventing unnecessary event reporting to upper-level protocols.

Exam 44: Deploying Cisco Unified Contact Center Express

You are designing an optical network. Your goal is to ensure that your design contains the highest degree of resiliency. In which two ways will you leverage a wavelength-switched optical network solution in your network design? (Choose two.)

If a network design must support rapid convergence on half-duplex interfaces, which IEEE 802.1w capability should be used?

Which mechanism should be added to a network design to identify unidirectional Spanning Tree Protocol failures through BPDU loss?

When creating a design plan for IPv6 integration, you decide to use stateless encapsulation of IPv6 packets into IPv4 tunnels between subscriber CPEs and a border relay. Which deployment technique allows for this functionality?

When developing an MVPN design, which performance and scalability consideration must be taken into account?

You are designing a wireless LAN with the following components: Site survey results show negligible foreign WiFi and non-WiFi interference. What is the best method to decrease duty cycle (radio frequency utilization) and increase overall wireless LAN client performance for this design?

A metro service provider is planning Resilient Ethernet Protocol for his backbone. Which two aspects must be considered before the network design is finalized? (Choose two.)

A company wants to use SSM as the multicast routing protocol inside its network. Some of its multicast applications do not support IGMPv3. In which two ways can the mapping be done when these applications send IGMPv2 join messages? (Choose two.)

A company plans to use BFD between its routers to detect a connectivity problem inside the switched network. An IPS is transparently installed between the switches. Which packets should the IPS forward for BFD to work under all circumstances?

You are designing a Group Encrypted Transport Virtual Private Network solution consisting of 30 group members. Which measure helps protect encrypted user traffic from replay attacks?

A company has these requirements for access to their wireless and wired corporate LANs using 802.1x: Which solution meets these requirements?

You are designing a network for a branch office. In order to improve convergence time, you are required to use the BFD feature. Which four routing protocols can you use to facilitate this? (Choose four.)

In an MPLS-VPN environment, what is the effect of configuring an identical set of route targets for a particular VRF, but then configuring nonidentical route distinguisher across multiple PE devices?

ACME Corporation is integrating IPv6 into their network, which relies heavily on multicast distribution of data. Which two IPv6 integration technologies support IPv6 multicast? (Choose two.)

What is a design aspect regarding multicast transport for MPLS Layer 3 VPNs using the Rosen Draft implementation?

In order to meet your service level agreement, your network designer created a design solution that includes interface dampening. In which two ways will interface dampening benefit your overall network design? (Choose two.)