[Jan-2024] JN0-649 Certification with Actual Questions from ITExamDownload
Updated JN0-649 Dumps PDF - JN0-649 Real Valid Brain Dumps With 65 Questions!
In order to prepare for the JN0-649 exam, candidates are encouraged to take Juniper Networks training courses, read Juniper Networks documentation, and gain practical experience working with Juniper Networks devices. Successful candidates will be able to demonstrate their expertise in enterprise routing and switching and will be awarded the JNCIP-ENT certification.
Juniper JN0-649 exam is an industry-recognized certification exam that focuses on enterprise routing and switching for professionals. JN0-649 exam is designed for networking professionals who have a deep understanding of enterprise routing and switching technologies and want to validate their skills and knowledge. It is one of the most popular certifications for networking professionals as it covers a wide range of topics related to enterprise routing and switching.
Juniper JN0-649 Enterprise Routing and Switching, Professional (JNCIP-ENT) Exam is a certification exam that is designed for IT professionals who specialize in enterprise routing and switching technologies. JN0-649 exam tests the knowledge and skills of candidates in the areas of routing technologies, switching technologies, security technologies, troubleshooting, and Junos OS fundamentals. It is a comprehensive exam that requires a thorough understanding of enterprise networking and routing protocols.
NEW QUESTION # 32
Which two statements are true regarding bidirectional PIM? (Choose two )
- A. Devices only store group specific entries.
- B. It eliminates the need for an RP.
- C. It uses multicast tunneling to forward traffic
- D. Forwarding paths can be suboptimal
Answer: A,D
NEW QUESTION # 33
Referring to the log shown in the exhibit, what is the problem with the OSPF adjacency establishment?
- A. The OSPF database description packet is malformed.
- B. There is an MDS authentication mismatch.
- C. The referenced IP address does not exist on the network segment.
- D. The interface IP addresses on the subnet are duplicates.
Answer: D
NEW QUESTION # 34
You are using 802.1X in your access network consisting of EX Series switches. You recently had a failure with your RADIUS server which resulted in authenticating client devices being denied access to the network. You want to change this behavior so that authenticating clients are directed to a remediation VLAN. Which RADIUS server failback setting satisfies this requirement?
- A. deny
- B. permit
- C. sustain
- D. move
Answer: D
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/radius-server-configuration- ex-series-cli.html#id-configuring-radius-server-fail-fallback-cli-procedure Permit authentication, allowing traffic to flow from the end device through the interface as if the end device were successfully authenticated by the RADIUS server.
Deny authentication, preventing traffic from flowing from the end device through the interface.
This is the default.
Move the end device to a specified VLAN if the switch receives a RADIUS access-reject message. The configured VLAN name overrides any attributes sent by the server. (The VLAN must already exist on the switch.) Sustain authenticated end devices that already have LAN access and deny unauthenticated end devices. If the RADIUS servers time out during reauthentication, previously authenticated end devices are reauthenticated and new users are denied LAN access.
NEW QUESTION # 35
You must ensure that all routes in the 10.0.0/8 address range are not advertised outside of your AS. Which well-known BGP community should be assigned to these addresses to accomplish this task?
- A. internet
- B. no-advertise
- C. no-peer
- D. no-export
Answer: D
NEW QUESTION # 36
What are two OSPF LSA types? (Choose two.)
- A. Router
- B. Stub
- C. Network
- D. Transit
Answer: A,C
NEW QUESTION # 37
Which three statements are correct about EVPN route types? (Choose three.)
- A. Type 2 routes carry endpoint IP address information.
- B. Type 5 routes carry replication information.
- C. Type 2 routes carry endpoint MAC address information.
- D. Type 3 routes carry replication information.
- E. Type 1 routes carry endpoint MAC address information.
Answer: A,C,D
Explanation:
Cisco explains it better: The EVPN control plane advertises the following types of information:
Route type 1 - This is an Ethernet Auto-Discovery (EAD) route type used to advertise Ethernet segment identifier, Ethernet Tag ID, and EVPN instance information. EAD route advertisements may be sent for each EVPN instance or for each Ethernet segment.
Route type 2 - This advertises endpoint reachability information, including MAC and IP addresses of the endpoints or VTEPs.
Route type 3 - This performs multicast router advertisement, announcing the capability and intention to use ingress replication for specific VNIs.
Route type 4 - This is an Ethernet Segment route used to advertise the Ethernet segment identifier, IP address length, and the originating router's IP address.
Route type 5 - This is an IP prefix route used to advertise internal IP subnet and externally learned routes to a VXLAN network.
NEW QUESTION # 38
What information is contained in an OSPF LSA header? (Choose two.)
- A. subnet mask
- B. length
- C. protocol
- D. options
Answer: B,D
NEW QUESTION # 39
You are implementing a single spanning tree instance in your network and want to use the protocol that will give you the best convergence time in the event of a physical network failure of the root bridge. Which spanning tree protocol will satisfy this requirement?
- A. RSTP
- B. MSTP
- C. STP
- D. VSTP
Answer: A
Explanation:
STP and RSTP are limited to a single instance on any physical interface. Use the interface (Spanning Tree) statement to configure interfaces to participate in the STP or RSTP instance.
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/spanning-tree-instances- interfaces.html
NEW QUESTION # 40
You are asked to implement fault tolerant RPs in your multicast network. Which two solutions would accomplish this behavior? (Choose two.)
- A. Use MSDP with statically defined RPs.
- B. Use anycast PIM with statically defined RPs.
- C. Use BFD with statically defined RPs.
- D. Use IGMPv3 with statically defined RPs.
Answer: A,B
NEW QUESTION # 41
You must provide network connectivity to hosts that fail authentication. In this scenario, what would be used in a network secured with 802.1X to satisfy this requirement?
- A. Configure the native-vlan-id parameter on the port.
- B. Configure a secondary IP address on the port for unauthenticated hosts.
- C. Use the server-reject-vlan command to specify a guest VLAN.
- D. Configure the port as a spanning tree edge port.
Answer: C
NEW QUESTION # 42
You are troubleshooting an EVPN-VXLAN IP fabric and observe the loop shown in the exhibit.
Which two steps would you take to further troubleshoot this problem? (Choose two.)
- A. Verify that the same ESI is configured on the two links from the source.
- B. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 3 routes are present.
- C. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 4 routes are present.
- D. Verify that the same ESI is configured on the link from the host and that it matches the source.
Answer: B,C
NEW QUESTION # 43
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. The DS-1 switch will be root bridge for MSTI 2.
- B. The DS-2 switch will be root bridge for MSTI 1.
- C. The DS-1 switch will be root bridge for MSTI 1.
- D. The DS-2 switch will be root bridge for MSTI 2.
Answer: A,B
Explanation:
Bridge priority is to determine which bridge becomes the designated bridge.
NEW QUESTION # 44
Your IS-IS adjacency is not established as shown in the exhibit. What is the problem?
- A. There is an MTU mismatch
- B. There is an invalid IPv4 router ID
- C. There is an area mismatch
- D. There is an invalid IPv6 router ID
Answer: C
NEW QUESTION # 45
You must provide network connectivity to hosts that fail authentication.
In this scenario, what would be used in a network secured with 802.1X to satisfy this requirement?
- A. Configure the native-vlan-id parameter on the port.
- B. Configure a secondary IP address on the port for unauthenticated hosts.
- C. Use the server-reject-vlan command to specify a guest VLAN.
- D. Configure the port as a spanning tree edge port.
Answer: C
Explanation:
For a device configured for 802.1X authentication, specify that when the device receives an Extensible Authentication Protocol Over LAN (EAPoL) Access-Reject message during the authentication process between the device and the RADIUS authentication server, supplicants attempting to access the LAN are granted access and moved to a specific bridge domain or VLAN. Any bridge domain, VLAN name or VLAN ID sent by a RADIUS server as part of the EAPoL Access-Reject message is ignored.
NEW QUESTION # 46
You will to route Layer 3 PVLAN traffic within the secondary VLAN.
What is required to accomplish this task?
- A. a community VIAN
- B. an isolated VLAN
- C. an IRB
- D. an FBF policy
Answer: C
NEW QUESTION # 47
What are two similarities between OSPFv2 and OSPFv3? (Choose two.)
- A. protocol processing per link, not per subnet
- B. 32-bit router ID
- C. support for multiple instances per link
- D. virtual links
Answer: B,D
NEW QUESTION # 48
You ate configuring BGP policies for a site with a dual-homed connection as shown in the exhibit.
You must ensure that inbound traffic from Internet hosts flow through the ISP A connection.
Which statement is correct in this scenario?
- A. Apply a BGP export policy on R1 to assign a higher local preference value to routes advertised to ISP A.
- B. Apply a BGP export policy onR2to assign a lower origin value to routes advertised to ISP B.
- C. Apply a BGP export policy on R1 to assign a lower MED value to routes advertised to ISP A.
- D. Apply a BGP export policy to R2 to prepend [65001 65001 65001 65001 65001] to the AS path of routes advertised to ISP B.
Answer: D
NEW QUESTION # 49
Referring to the exhibit, which statement is correct?
- A. The route is learned from only one neighbor.
- B. The route is learned from a multihop BGP session.
- C. The route is learned from a multipath BGP session.
- D. The route is learned from three different neighbors.
Answer: A
NEW QUESTION # 50
You have configured CoS on a Junos device. A packet is classified as best effort by a behavior aggregate (BA) classifier, and as expedited forwarding by a multifield (MF) classifier.
Which statement is true in this scenario?
- A. The packet will be placed in a queue associated with the MF classifier.
- B. The packet will be placed into the queue which is least congested.
- C. The packet will be placed into the queue that has the most bandwidth assigned to it.
- D. The packet will be placed in a queue associated with the BA classifier.
Answer: A
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/cos-configuring- multifield-classifiers.html
>> "If you configure both a behavior aggregate (BA) classifier and a multifield classifier, BA classification is performed first; then multifield classification is performed. If they conflict, any BA classification result is overridden by the multifield classifier."
NEW QUESTION # 51
In a Layer 2 environment where 802.1X is deployed, which two statements are correct? (Choose two.)
- A. RADIUS messages are exchanged between the supplicant and the authenticator.
- B. Extensible Authentication Protocol messages are exchanged between the supplicant and the authenticator.
- C. Extensible Authentication Protocol messages are exchanged between the authenticator and the authentication server.
- D. RADIUS messages are exchanged between the authenticator and the authentication server.
Answer: B,D
Explanation:
https://en.wikipedia.org/wiki/IEEE_802.1X
NEW QUESTION # 52
Which two port modes are associated with STP? (Choose two.)
- A. alternate port
- B. root
- C. designated
- D. backup port
Answer: B,C
NEW QUESTION # 53
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