Which option reduces jitter in a VoIP network?

A. Deploy WRED

B. Deploy call Admission Control

C. Adjust the playout delay buffer at the receiver

D. Increase the bandwidth of the links

An enterprise campus is adopting a network virtualization design solution with these requirements

It must include the ability to virtualize the data plane and control plane by using VLANs and VRFs

It must maintain end-to-end logical path transport separation across the network

resources available grouped at the access edge

Which two primary models can this network virtualization design be categorized? (Choose two)

A. Path isolation

B. Session isolation

C. Group virtualization

D. Services virtualization

E. Edge isolation

You are designing a new multisite data center network within the same city. You are using the newest routers that run OSPF and DWDM point-to-point interfaces for site-to-site connectivity. Your primary objective is to use the fastest possible method for interface failure detection. Which method achieves this objective?

A. UDLD

B. Interface event dampening

C. LoS/AIS event faults

D. Fast-hello timers

Which three network management requirements are common practices in network design? (Choose three) A. Collect RMON poll information for future regression analysis

B. Ensure that all network devices have their clocks synchronized

C. Look at average counters instead of instantaneous counters for inconsistent and bursty KPIs, such as CPU utilization and interface utilization.

D. Collect SNMP poll information for future regression analysis

E. Validate data plane health, application and services availability with synthetic traffic

F. Capture both ingress and egress flow-based packets. While avoiding duplications of flows

A customer has a DMVPN network with EIGRP as the overlay protocol. EIGRP timers cannot be shortened, yet the customer requires the detection of lost connectivity between neighbors in less than three seconds. Which action achieves this requirement?

A. Adjust the GRE keepalive timers

B. Enable BFD

C. Deploy IPsec dead peer detection

D. Adjust the NHRP timers.

A large ISP is analysing which IGP meets these following requirements

Network must be resilient against unstable MTU in one side of newly released transmission pieces of equipment

Network must support MPLS traffic engineering solution for future use

Which IGP must be selected and why?

A. ISIS : in case MTU changes your TE tunnels keep the LSP stable

B. OSPF: adjacency remains up even if MTU changes

C. OSPF: in case MTU changes your TE tunnels keep the LSP stable

D. ISIS: adjacency remains up even if MTU changes

What is a design benefit of PortFast?

A. PortFast allows small, unmanaged switches to be plugged into ports of access switches without risking switch loops

B. PortFast disables spanning-tree on the port, which puts the port into the forwarding state immediately after it is connected

C. Portfast does not generate a spanning-tree topology change when a station on a port is connected or disconnected

D. PortFast detects one-way communications on the physical port, when prevents switch loops

E. PortFast prevents switched traffic from traversing suboptimal paths on the network

F. PortFast prevents switch loops that are caused by a unidirectional point-to-point link condition on Rapid PVST+ and MST

Which are two data plane hardening techniques? (Choose two)

A. Infrastructure ACLs

B. Control Plane Policing

C. Redundant AAA servers

D. Disable unused services

E. Routing protocol authentication

F. SNMPv3

G. Warning banners

An network is designed to use OSPF to reach eBGP peers. Which condition should be avoided in the design to potentially prevent the eBGP peers do not flap continuously in case of link failure?

A. Disable BGP synchronization.

B. Advertise IP addresses used on eBGP peer statement via a non-backbone OSPF area.

C. Advertise via eBGP IP addresses used on eBGP peer statements.

D. Use an ACL to block BGP in one direction.

A company requires to connect two data center sites using a hub-and-spoke design. There are 2000 remote sites. It is required to transfer MPLS labeled packets over the public Internet using one router at each remote site. These MPLS labeled packets must be encapsulated inside IP packets. Which solution must be used to simplify this network design?

A. GET VPN encrypts the MPLS packets with IPsec.

B. DMVPN dynamically builds GRE tunnels with MPLS encapsulation inside.

C. Site-to-site IPsec without GRE encapsulates the MPLS packets.

D. PPPoE encapsulates the MPLS packets

E. L2TPv3 encapsulated the MPLS packets