Juniper.Testking.JN0-1300.v2016-06-30.by.Ray...Jun 30, 2016 · Your customer wants to implement better quality of service for multiple mission critical applications. How many bits

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JN0-1300.exam

Number: JN0-1300Passing Score: 800Time Limit: 120 min

Juniper

JN0-1300

Juniper Networks Certified Design Specialist, Data Center


Exam A

QUESTION 1What are two valid types of software-defined networking architectures? (Choose two.)

A. hardware-basedB. controller-basedC. policy-basedD. actuation-based

Correct Answer: BCSection: (none)Explanation

Explanation/Reference:

QUESTION 2Your customer wants to implement better quality of service for multiple mission critical applications.

How many bits of the Differentiated Services (DiffServ) field of a packet would be used as code-points to achieve this goal?

A. eightB. twoC. sixD. ten

Correct Answer: CSection: (none)Explanation


QUESTION 3Which encapsulation is used on the cascade ports of a Junos Fusion aggregation device?

A. PBBB. IEEE 802.1BR


C. Broadcom HiGig2D. MPLS

Correct Answer: BSection: (none)Explanation


QUESTION 4You want to improve high availability of the Juniper Networks routing devices in your data center.

Which three would accomplish this task? (Choose three.)

A. Routing Engine redundancyB. Spanning Tree ProtocolC. graceful Routing Engine switchoverD. virtual private LAN serviceE. Virtual Router Redundancy Protocol

Correct Answer: ACESection: (none)Explanation


QUESTION 5Click the Exhibit button.


You need to filter east-west Web traffic inside the data center between Server Cluster A and Server Cluster B using information contained in the IP header.

Referring to the exhibit, where should you filter the traffic?

A. Web Filter-1B. IDP-1C. Firewall-1D. Router-1



QUESTION 6A customer has reached the limit of their IEEE Layer 2 VLAN implementation. The customer then switches to a VXLAN overlay architecture using Layer 3.

In this scenario, how many unique VXLAN segments are mathematically available?

A. 4,194,304B. 8192C. 4096D. 16,777,216

Correct Answer: D


Section: (none)Explanation

Explanation/Reference:Explanation:VXLAN is a header encapsulation technology that defines a 50 Byte wide header. The header itselfincludes a VXLAN ID (VNI or also called segment ID) field that is 24 bits wide allowing for 16,777,216 (2^24) unique VXLAN segments.Reference: https://dcxtc.files.wordpress.com/2012/12/vxlan-industry-brief-jakehowering-2212013.pdf

QUESTION 7A customer is using a Clos IP fabric design in their data center.

What is the advantage of using EBGP signaling between spine and leaf nodes rather than IBGP in this scenario?

A. An EBGP router automatically performs the next hop self-operation on advertised routes.B. By default, EBGP supports multihop sessions between peers.C. A leaf node can have multiple EBGP sessions with a spine node.D. EBGP does not require support for the ADD-PATH capability.

Correct Answer: DSection: (none)Explanation

Explanation/Reference:Explanation:By default, EBGP meets all of the implementation requirements when you build the IP fabric. There’s no need for BGP route reflection or BGP Add Path with EBGPReference: http://www.juniper.net/us/en/local/pdf/whitepapers/2000565-en.pdf

QUESTION 8You are about to deploy the Cloud Analytics Engine in your data center. However, some of the devices in your data center are not supported by the Cloud AnalyticsEngine.

In this scenario, which two actions would occur? (Choose two.)


A. The QFX Series devices report more than the IP address and hop number.B. The EX Series devices report more than the IP address and hop number.C. The non-Junos devices report more than the IP address and hop number.D. The MX Series devices only report the IP address and hop number.

Correct Answer: ABSection: (none)Explanation


QUESTION 9Your customer has decided to implement a Layer 3 Clos IP fabric in their data center. They want to use IBGP and avoid using the full mesh requirement in thisdeployment scenario.

Which two actions would accomplish this task? (Choose two.)

A. Use well-known communities on all advertised routes.B. Use BGP confederations.C. Use AS path prepend policies.D. Use route reflection within the design.

Correct Answer: BDSection: (none)Explanation


QUESTION 10A customer’s data center is built with a QFX3000-G composed of four QFX3008-I Interconnects, four QFX5100-48S nodes in the network Node group, and 20QFX5100-48S nodes spread in 10 redundant server Node groups. There are host systems (FCoE clients) scattered everywhere throughout the data center.

In this scenario, where should the FCoE-to-FC gateway(s) be placed?

A. QFX3500s must be placed into the network Node group to provide a centralized FC-to-FCoE gateway.B. QFX3500s must be placed external to the QFX3000-G to provide an external FC-to-FCoE gateway.


C. QFX3500s must be placed directly attached to the QFX3008-I Interconnects as a new Fibre Channel Node group to provide a centralized FC-to-FCoE gateway.D. Every Node which has FCoE client servers must become its own FC-to-FCoE gateway to provide a distributed FC-to-FCoE gateway.

Correct Answer: ASection: (none)Explanation


QUESTION 11The QFX5100 can be configured to be a virtual tunnel endpoint (VTEP) in your Clos IP fabric.

What is the importance of this capability?

A. It allows the QFX5100 to perform the PE role of an EVPN.B. It allows attached bare metal servers to communicate using an overlay VXLAN network.C. It prevents the QFX5100 from learning the MAC addresses of an overlay network.D. It allows the QFX5100 to perform the PE role of a Layer 2 pseudowire.



QUESTION 12A customer wants to implement redundancy in the core and at the edge with a single IP address for management in their data center. They have 200 servers dual-homed with two 10 Gbps fiber ports, and two 1 Gbps copper ports for management and testing. In addition, they have a redundant iSCSI array with two 40 Gbpsports each.

In this scenario, which solution meets the customer’s requirements?

A. a QFabric system using QFX3000-M with two QFX3600-Is, two QFX3008 Directors, along with eight EX4300-48Ts, and nine QFX5100-48Ss as node devices.B. a Virtual Chassis Fabric solution consisting of two QFX-5100-24Q as spine nodes and the leaf nodes consisting of eight EX4300-48Ts and nine QFX5100-48Ss

operating in mix mode VCFC. a dual core switch design with two EX9208s in an MC-LAG architecture with nine dual-homed QFX5100-48Ss and eight dual-homed EX4300-48TsD. a Virtual Chassis solution consisting of one Virtual Chassis with nine QFX5100-48Ss and one Virtual Chassis with eight EX4300-48Ts




QUESTION 13Which three statements describe a one-armed firewall deployment in a data center? (Choose three.)

A. It requires at least two interfaces for ingress and egress.B. It may be virtualized or hardware based.C. It may be deployed in high availability mode.D. It requires that all traffic flows directly through the firewall.E. It requires a routing policy to determine which traffic passes through the firewall.

Correct Answer: BCESection: (none)Explanation


QUESTION 14You are implementing a new financial application in your data center. You must ensure Web traffic to this server is secure.

Which Junos feature would you use to accomplish this task?

A. graceful restartB. antispam


C. AppSecureD. Virtual Chassis



QUESTION 15A customer wants to build a new data center based on the QFX3000-M. The data center must support 30 high traffic volume host servers. Each server will be dualconnected to the fabric with two 40 Gbps links. The customer requires that there be a 1:1 subscription ratio within the fabric.

How should the QFX3000-M be configured to meet the customer’s requirements?

A. Use four QFX5100-24Q Interconnect chassis to which each of 30 QFX35000 nodes will be dual connected with two 40 Gbps FTE links to each QFX5100-24Q.B. Use four QFX3600-I Interconnect chassis to which each of eight QFX3600 nodes will be dual connected with two 40 Gbps FTE links to each QFX3600-I.C. Use eight QFX3600-I Interconnect chassis to which each of 16 QFX3600 nodes will be connected with a 40 Gbps FTE link to each QFX3600-I.D. Use four QFX3008-I Interconnect chassis to which each of 16 QFX3600 nodes will be dual connected with two 40 Gbps FTE links to each QFX3600-I.



QUESTION 16Which two statements are true regarding EVPNs? (Choose two.)

A. EVPNs can be built over an existing MPLS infrastructure.B. EVPNs cannot be built over an MPLS infrastructure.C. EVPNs use MP-BGP to distribute MAC and IP route information.D. EVPNs use VXLAN to distribute MAC and IP route information.

Correct Answer: ACSection: (none)Explanation



QUESTION 17Your customer is deploying a new data center in a collocation facility and will occupy several racks throughout the environment. The racks are not in close proximityand, in some cases, reside on different floors. The interconnected racks will never exceed a distance of more than 300 meters (925 feet) from each other. Theconnections within the customer’s environment are 10GbE and 40GbE. The customer’s requirements include high-performance operations, future proofing theconnectivity design, and limiting the initial capital investment.

Which two recommendations would you provide the customer? (Choose two.)

A. Use multimode fiber connections between all customer racks.B. Use single-mode fiber connections within a customer rack.C. Use DAC connections between all customer racks.D. Use DAC connections within a customer rack.



QUESTION 18Clos architectures are based on which network topology?

A. ringB. VLANsC. hybridD. spine and leaf



QUESTION 19


You want to perform a risk assessment for an asset in your data center.

Which three elements must be considered? (Choose three.)

A. threat expectancyB. single loss expectancyC. annualized loss expectancyD. exposure factorE. asset value

Correct Answer: BDESection: (none)Explanation


QUESTION 20You are asked to design a Virtual Chassis Fabric architecture.

Which three combinations are valid? (Choose three.)

A. two spine nodes and sixteen leaf nodesB. five spine nodes and twenty leaf nodesC. four spine nodes with sixteen leaf nodesD. four spine nodes and twenty-eight leaf nodesE. five spine nodes and twenty-eight leaf nodes

Correct Answer: ACDSection: (none)Explanation



QUESTION 21What are three Ethernet fabric architectures? (Choose three.)

A. SDNB. Junos FusionC. QFabric systemD. Virtual Chassis FabricE. Trill

Correct Answer: BCDSection: (none)Explanation

Explanation/Reference:Reference: http://www.juniper.net/us/en/products-services/switching/data-center-switching-architectures/



You are designing a Virtual Chassis solution for your company’s data center with the switches shown in the exhibit.

Which two switches should be assigned a Routing Engine role? (Choose two.)

A. switch AB. switch CC. switch DD. switch B

Correct Answer: ADSection: (none)Explanation


Explanation/Reference:Explanation:The QFX5100’s should be the routing engines. In a mixed Virtual Chassis, the switch in the master Routing Engine role determines which switches are supportedin the line card role of the mixed Virtual Chassis.When a mixed Virtual Chassis is using a QFX5100 switch in the master Routing Engine role, you can use QFX5100, QFX3600, QFX3500, or EX4300 switches inthe line card role.When a mixed Virtual Chassis is using a QFX3600 or QFX3500 switch in the master Routing Engine role, you can use QFX3600, QFX3500, or EX4300 switches inthe line card role.In a mixed EX4300 and EX4600 Virtual Chassis, an EX4600 switch automatically assumes the Routing Engine role.EX4600 switches can only be in a mixed Virtual Chassis with EX4300 switches. EX4600 switches cannot be in a mixed Virtual Chassis with QFX5100, QFX3600,or QFX3500 switches.We recommend always configuring the same type of switch into the master and backup Routing Engine role, to ensure that the switch operating in the master roleremains the same type of switch in the event of a switchover.In most mixed Virtual Chassis, you must configure your Virtual Chassis to ensure a switch that supports the master Routing Engine assumes the master RoutingEngine role. Without user configuration, any switch — with the exception of the EX4300 switch, which can never assume the master or backup Routing Engine rolein a mixed Virtual Chassis or VCF — can assume the master or backup Routing Engine role.Reference: https://www.juniper.net/techpubs/en_US/junos13.2/topics/concept/virtual-chassis-ex-qfx-series-mixed-understanding.html#jd0e283

QUESTION 23You are designing your data center SRX Series devices to be highly available. You are required to have any failure on the active firewall trigger all services to bemoved to the non-active firewall.

What will accomplish this task?

A. Place both nodes in a Virtual Chassis.B. Place all interfaces in the SRX cluster in RG0 and use interface monitoring.C. Remove RG0 from the SRX cluster and place all interfaces in RG1 and use interface monitoring.D. Install redundant chassis cluster cards in each node and disable one.

Correct Answer: ABSection: (none)Explanation

Explanation/Reference:Reference: http://kb.juniper.net/library/CUSTOMERSERVICE/GLOBAL_JTAC/SRX-cluster-monitoring-best-practices.pdf



A virtual machine was moved from a customer’s New York data center to their Los Angeles data center. The virtual machine will continue to send inter-VLANpackets to the New York data center default gateway until the ARP timer expires. The customer wants to optimize routing to the shortest time possible.

Which solution will meet the requirement?

A. VXLAN with a VMware NSX distributed routerB. EVPN with Virtual Machine Traffic OptimizationC. standard IP routing with proxy ARPD. VPLS with MAC movement automation



Explanation/Reference:Reference: http://www.juniper.net/assets/us/en/local/pdf/whitepapers/2000596-en.pdf Page 6 and 7.

QUESTION 25You are designing an SDN-based network with a QFX5100. The infrastructure requires a VTEP between the VXLAN overlay network and the underlay VLANs.

In this scenario, what are two requirements that would allow the VTEP to function properly? (Choose two.)

A. EVPNB. policy-based SDNC. PIM routingD. SDN controller

Correct Answer: CDSection: (none)Explanation


QUESTION 26Your customer asks you to design a Data Center Interconnect solution. The solution should allow each of the tenants to use 802.1q tagging without concern forpossible overlap in VLAN tags.

Which two protocols would you use to meet the customer requirements? (Choose two.)

A. EVPNB. MLDPC. VXLAND. MSTP

Correct Answer: AC


Section: (none)Explanation



The exhibit shows a data center that terminates all of the service chains into VRFs on the DC Gateway router. However, the DC Gateway router is reaching thelimit of VRFs supported. Each service chain uses around 1.5 Gbps of bandwidth.

According to Juniper Networks, what should you recommend to overcome this problem?


A. Deploy MX104s and terminate each service chain in a different VRF on each MX Series device.B. Deploy vMXs and terminate each service chain in a different VRF on each vMX.C. Deploy SRX240s and terminate each service chain in a different VRF on each SRX Series device.D. Deploy vSRXs and terminate each service chain in a different VRF on each vSRX.



QUESTION 28What are two characteristics of in-band network management? (Choose two.)

A. A dedicated management channel is used so disruption in the core network does not affect the ability to manage devices.B. In-band network management is less complicated because a dedicated management channel is not used.C. A hardware solution, such as terminal server, is used to connect for device management.D. A network protocol, such as SSH or VNC, is used to connect for device management.



QUESTION 29From a network management perspective, a Virtual Chassis consisting of the five physical switches will appear as how many devices?

A. 0B. 1C. 2D. 5

Correct Answer: BSection: (none)


Explanation

Explanation/Reference:Explanation:Juniper Networks Virtual Chassis technology, available on most Juniper Networks EX Series Ethernet Switches and QFX Series Ethernet switches, addressesmany data center and campus challenges by allowing multiple interconnected switches to behave, operate, and be managed as a single logical, high-bandwidthdevice.Reference: https://www.juniper.net/assets/us/en/local/pdf/whitepapers/2000427-en.pdf

QUESTION 30You are asked to recommend a stateful firewall solution for east-west traffic that will provide the best cost-to-performance ratio in your data center over a three yearperiod. The devices that you recommend must be able to forward up to 4 Gbps of traffic.

In this scenario, which device would you recommend?

A. SRX550B. SRX240C. vSRXD. vMX


Explanation/Reference:Reference: http://www.juniper.net/us/en/products-services/security/srx-series/srx550/

QUESTION 31A customer has multiple concerns about the effect that overloading their upstream links will have on their networking devices.

In this situation, which two problems will VOQ minimize? (Choose two.)

A. forward pressureB. head-of-line blockingC. back pressureD. error handling

Correct Answer: BCSection: (none)Explanation



QUESTION 32You are building a Layer 3 Clos data center network using IBGP as the control plane protocol.

What would you use in the spine nodes to accomplish this task?

A. export route filtersB. different autonomous system numbersC. import route filtersD. route reflection


Explanation/Reference:Reference: http://www.juniper.net/us/en/local/pdf/whitepapers/2000565-en.pdf page 10

QUESTION 33Your customer runs an Internet-based retail website, hosted in a primary data center with a backup data center that is physically remote from the primary site. Aspart of their growth plan, they are exploring what it would take to upgrade to active/active data centers for inbound connections from their customers.

Which technology is required in this scenario?

A. Virtual Router Redundancy Protocol (VRRP)B. OSPFC. NATD. global server load balancing (GSLB)




QUESTION 34What is an advantage of a Virtual Chassis Fabric (VCF) over a Clos IP fabric?

A. A VCF has inherent control plane protocols.B. A VCF may be upgraded one individual component switch at a time.C. A VCF will have greater internal bandwidth than a Clos IP fabric.D. A VCF will scale to a larger size than a Clos IP fabric.



QUESTION 35Which device is recommended by Juniper Networks as edge routers in a data center?

A. EX SeriesB. QFX SeriesC. MX SeriesD. CTP Series





You are designing a network of QFX5100 switches as shown in the exhibit.

Which two switches should be designated as the Routing Engines in the Virtual Chassis Fabric?

A. C and FB. A and CC. B and CD. A and B


Explanation/Reference:Reference: http://www.juniper.net/documentation/en_US/junos13.2/topics/concept/vcf-components.html

QUESTION 37Your customer is receiving inappropriate traffic from a rival corporation which is using a fixed block of IP addresses that they own. No legitimate traffic is exchangedbetween the two companies. You must secure the customer’s network from a potential attack by their rival corporation with the lowest performance impact.


Which network device will allow you to accomplish this task?

A. edge switchB. perimeter routerC. campus routerD. perimeter firewall



QUESTION 38What are three advantages of VCF? (Choose three.)

A. VCF leaf devices are directly connected to each spine device and offer local switching.B. VCF supports a mix of 1GbE, 10GbE, and 40GbE port speeds on the leaf devices.C. VCF supports PoE.D. VCF has a single point of administration.E. VCF supports FC SAN multihop.

Correct Answer: ABDSection: (none)Explanation

Explanation/Reference:Explanation:Virtual Chassis Fabric is a plug-and-play Ethernet fabric technology that allows you to combine a set of switches into a single logical switch. A Virtual ChassisFabric has the following benefits:

Single point of managementSupports software-defined networking (SDN) with Virtual Extensible LAN (VXLAN) integrationSupports Fast Ethernet, Gigabit Ethernet,10-Gigabit Ethernet, and 40-Gigabit Ethernet interfacesFull Layer 2, Layer 3, and multicast supportEqual-cost multipath (ECMP)Scales up to 32 switchesHitless software upgrades with unified in-service software upgrade (ISSU)

Reference: https://www.juniper.net/techpubs/en_US/release-independent/nce/information-products/pathway-pages/nce/nce-148-metafabric-2.0-configuring.pdf


QUESTION 39You want to provide Layer 2 connectivity to a backup data center or to a disaster recovery site.

What would you use to accomplish this task?

A. Data Center InterconnectB. network redundancyC. SDND. SAN protocols



QUESTION 40Which Junos NFV device is used to provide security in virtualized environments?

A. TCA6000B. SSG20C. IC6500D. vSRX




Reference: http://www.juniper.net/us/en/local/pdf/datasheets/1000489-en.pdf

QUESTION 41You are configuring a chassis cluster consisting of two SRX5800s in your data center. These two devices will be using redundant Ethernet interfaces.

In this scenario, which three statements are correct? (Choose three.)

A. Redundant Ethernet interfaces are control plane links.B. Redundant Ethernet interfaces can operate at 100 Mbps, 1 Gbps, or 10 GbpsC. Redundant Ethernet interfaces support multiple VLANs.D. Redundant Ethernet interfaces support link aggregation groups.E. Redundant Ethernet interfaces can only use fiber-optic connections.

Correct Answer: BCDSection: (none)Explanation


QUESTION 42You are using IBGP with route reflection in your Clos IP fabric.

Which feature must you enable to allow the route reflector to advertise multiple versions of a route instead of only the best version?

A. multipathB. multihopC. AS overrideD. BGP ADD-PATH


Explanation/Reference:Explanation:BGP typically selects only one best path for each prefix and installs that route in the routing table. When BGP multipath is enabled, the device selects multipleequal-cost EBGP paths as the best paths to reach a given destination, and all these paths are installed in the routing table. BGP advertises only the active path toits neighbors. However, you can configure BGP to advertise multiple paths to the same destination for redundancy and load balancing.


Reference: http://www.juniper.net/documentation/en_US/junos14.1/topics/topic-map/bgp-multipath.html

QUESTION 43A customer’s shared infrastructure is experiencing instability due to the number of routers that receive VPN routes and route updates originating from the datacenter.

Which BGP feature would minimize these updates?

A. BGP route target filteringB. MP-BGP multihopC. BGP ADD-PATHD. BGP route reflection



QUESTION 44You are deploying Spotlight Secure in the data center. You must determine which protocol will be permitted through the security devices in the managementnetwork for Spotlight Secure to work.

In this scenario, which protocol should you permit through the management security devices?

A. SSHB. HTTPSC. SFTPD. IPsec



QUESTION 45You want to rapidly deploy elastic Layer 3 through Layer 7 services in a data center.


What would be used to accomplish this task?

A. NFVB. VPLSC. MPLSD. VXLAN



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Juniper.Testking.JN0-1300.v2016-06-30.by.Ray...Jun 30, 2016 · Your customer wants to implement better quality of service for multiple mission critical applications. How many bits