2023 Correct and Up-to-date Juniper JN0-649 BrainDumps
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To be successful in the JN0-649 exam, candidates should have a strong background in networking technologies and be familiar with Juniper Networks operating systems, including Junos OS. They should also be able to configure and troubleshoot complex network infrastructures, and have a good understanding of security and high availability technologies. With the JNCIP-ENT certification, IT professionals can demonstrate their expertise in enterprise routing and switching technologies and advance their careers in network engineering, architecture, and design.
The JN0-649 exam is part of the Juniper Networks Certification Program (JNCP), which offers a range of certifications at different levels. Enterprise Routing and Switching, Professional (JNCIP-ENT) certification program is recognized worldwide as a benchmark for network professionals. The JNCP is designed to validate the skills and knowledge of network engineers, administrators, and support staff who work with Juniper Networks’ technologies.
The JN0-649 certification exam is designed to test your knowledge and proficiency in a wide range of topics, including routing protocols, switching technologies, network security, and automation. JN0-649 exam is intended for individuals who have a solid understanding of networking fundamentals and have experience working with Junos OS, Juniper's industry-leading network operating system. Earning this certification demonstrates to employers and peers that you have the necessary skills and knowledge to design, deploy, and manage complex enterprise networks using Juniper technologies.
NEW QUESTION # 23
You have a workstation and an IP phone that connect to the same physical port on your Juniper switch. Which statement is true?
- A. The access port can be configured to accept tagged and untagged traffic.
- B. You must configure two logical interfaces on the switch port.
- C. The workstation and the phone both must send tagged traffic to the switch.
- D. The switch port must be configured as a trunk port.
Answer: A
NEW QUESTION # 24
Which two multicast listener registration protocols are supported in the Junos operating system?
(Choose two.)
- A. IGMP
- B. DVMRP
- C. MLD
- D. PIM
Answer: A,C
NEW QUESTION # 25
You recently committed a change to a router to reject OSPF routes sourced from area 10. However, you are still seeing area 10 routes in the routing table.
Referring to the exhibit, which statement is correct?
- A. The OSPF protocol is first matched by find-ospf and accepted.
- B. The routes remain in the table until the routing daemon is restarted.
- C. The routes remain in the table until the device is rebooted.
- D. The routes only timeout after 24 hours.
Answer: A
Explanation:
Once a route is accepted, no other terms in the routing policy are evaluated.
NEW QUESTION # 26
Click the Exhibit button.
Referring to the exhibit, you must advertise the 100.0.0.0/16 routes from AS1 to AS2, but R2 is not advertising any BGP routes to R5.
Why is this happening in this scenario?
- A. The IBGP routes are not active because the next hop is not reachable.
- B. The IBGP routes are not active and EBGP will advertise only active routes.
- C. The IBGP routes will not be advertised because you must use a policy to advertise IBGP routes.
- D. The IBGP routes will not be advertised because the AS path shows as incomplete.
Answer: B
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/concept/policy-routing-policies- actions-defaults.html Default BGP Export Policy:
Readvertise all active BGP routes to all BGP speakers, while following protocol-specific rules that prohibit one IBGP speaker from readvertising routes learned from another IBGP speaker, unless it is functioning as a route reflector.
ed@vMX-PE1# show protocols bgp group eBGP | display set set protocols bgp group eBGP type external set protocols bgp group eBGP family inet unicast rib-group inet0-to-test set protocols bgp group eBGP peer-as 3 set protocols bgp group eBGP neighbor 10.0.13.3
[edit]
ed@vMX-PE1#
NEW QUESTION # 27
You are asked to establish interface level authentication for users connecting to your network. You must ensure that only corporate devices, identified by MAC addresses, are allowed to connect and authenticate. Authentication must be handled by a centralized server to increase scalability.
Which authentication method would satisfy this requirement?
- A. MAC RADIUS
- B. 802.1X with multiple supplicant mode
- C. 802.1X with single-secure supplicant mode
- D. captive portal
Answer: A
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/user-access/topics/topic-map/mac-radius-authentication-switching-devices.html You can configure MAC RADIUS authentication on an interface that also allows 802.1X authentication, or you can configure either authentication method alone.
If both MAC RADIUS and 802.1X authentication are enabled on the interface, the switch first sends the host three EAPoL requests to the host. If there is no response from the host, the switch sends the host's MAC address to the RADIUS server to check whether it is a permitted MAC address. If the MAC address is configured as permitted on the RADIUS server, the RADIUS server sends a message to the switch that the MAC address is a permitted address, and the switch opens LAN access to the nonresponsive host on the interface to which it is connected.
NEW QUESTION # 28
Referring to the exhibit, which statement is true?
- A. The current device was allowed after authentication attempts to the RADIUS server failed
- B. The current device is authenticated using MAC RADIUS
- C. Only 802. 1X authentication will be used for devices connecting to ge-0/0/15
- D. Additional users will automatically be allowed to connect to ge-0/0/15
Answer: A
NEW QUESTION # 29
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. The maximum wattage that this switch can allocate to attached Ethernet devices is 100 watts.
- B. The ge-0/0/10 interface supports PoE+.
- C. PoE is not enabled on the ge-0/0/0 interface.
- D. If the total power consumption exceeds 90 watts, the ge-0/0/11 interface will continue to receive power.
Answer: A,C
NEW QUESTION # 30
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 port as a spanning tree edge port.
- B. Configure a secondary IP address on the port for unauthenticated hosts.
- C. Configure the native-vlan-id parameter on the port.
- D. Use the server-reject-vlan command to specify a guest VLAN.
Answer: D
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 # 31
You are asked to enforce user authentication using a captive portal before users access the corporate network.
Which statement is correct in this scenario?
- A. When enabled, a captive portal must be applied to each individual interface.
- B. A captive portal can be bypassed using an allowlist command containing a device's IP address.
- C. All Web browser requests are redirected to the captive portal until authentication is successful.
- D. HTTPS is the default protocol for a captive portal.
Answer: C
NEW QUESTION # 32
A BGP network has been designed to provide resiliency and redundancy to a multihomed customer network.
Which two statements are correct in this scenario? (Choose two.)
- A. The TTL value of 1 is set to limit the scope of the EBGP session.
- B. A routing policy will be required to forward traffic to both next hops.
- C. The ttl statement must be configured to accommodate peering to a loopback address of a directly connected peer.
- D. Both the next hops will be used to forward traffic to R2.
Answer: B,C
NEW QUESTION # 33
You receive the same 100.200.0/16 route from all four ISPs to which you are connected.
Referring to the exhibit, which ISP's route will be selected as active?
- A. ISP-B
- B. ISP-D
- C. ISP-A
- D. ISP-C
Answer: C
NEW QUESTION # 34
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. Verify that the same ESI is configured on the link from the host and that it matches the source.
- D. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 4 routes are present.
Answer: B,D
NEW QUESTION # 35
You are implementing 802.1x access control in your network of EX Series switches. You have some older client devices connecting to your network which do not support 802.1x.
Which statement is true regarding the older devices?
- A. By default, the supplicant will send EAP messages and keep the port in an unauthorized state.
- B. By default, the supplicant will send EAP messages until it reaches a predefined limit, after which it begins to forward traffic.
- C. By default, the authenticator will send EAP messages and keep the port in an unauthorized state.
- D. By default, the authenticator will send EAP messages until it reaches a predefined, after which it begins to forward traffic.
Answer: B
NEW QUESTION # 36
There are two BGP routes to 10.200.200.0/24 received from two external peers. Route 1 comes from a neighbor with a router ID of 10.10.100.1 and a peer IP address of 10.10.30.1, and route 2 comes from a neighbor with a router ID of 10.10.200.1 and a peer IP address of 10.10.50.1. Both routes have the same MED value, origin value, AS path length, and local preference number.
In this scenario, which statement is correct about the active route?
- A. Route 2 will be active because of the router ID.
- B. Route 1 will be active because of the peer IP address.
- C. Route 1 will be active because of the router ID.
- D. Route 2 will be active because of the peer IP address.
Answer: C
Explanation:
The router determines the router ID for each peer that advertised a path to the route destination. A lower router ID value is preferred over a higher router ID value. 10. The router determines the peer ID for each peer that advertised a path to the router destination. A lower peer ID value is preferred over a higher peer ID value. The peer ID is the IP address of the established BGP peering session.
NEW QUESTION # 37
What are three well-known mandatory BGP attributes? (Choose three.)
- A. origin
- B. community
- C. AS-path
- D. next-hop
- E. MED
Answer: A,C,D
NEW QUESTION # 38
Click the exhibit.
Where is the policy shown in the exhibit enforced?
- A. Between the RIB-LOCAL and the RIB-OUT tables
- B. Between the RIB-IN and the RIB-LOCAL tables
- C. Between the BGP peer and the RIB-In table
- D. Between the RIB-OUT table and the BGP peer
Answer: B
NEW QUESTION # 39
You are asked to merge a RIP network with your OSPF network. As a first step, you establish connectivity between the RIP network and the OSPF network. The RIP network connects to an NSSA area. Which two statements are true in this scenario? (Choose two.)
- A. To share RIP routes with the OSPF network, an export policy will be required on the ABR.
- B. Be default, RIP routes have a higher route preference than external OSPF routes.
- C. To share RIP routes with the OSPF network, an export policy will be required on the ASBR.
- D. By default, external OSPF routes have a higher route preference than RIP routes.
Answer: C,D
Explanation:
Route Preference Values
OSPF Internal = 10
RIP = 100
OSPF External = 150
NEW QUESTION # 40
You are deploying IP phones in your enterprise networks. When plugged in, the IP phones must automatically negotiate the power requirements for the new connection with the EX Series switches. In this scenario, which protocol should be used to enable this behavior?
- A. CDP
- B. LLDP
- C. MP-BGP
- D. LLDP-MED
Answer: D
NEW QUESTION # 41
Which statement is correct about IS-IS?
- A. Level 2 routers must share the same area address.
- B. IS-IS uses areas and an autonomous system.
- C. Level 1/2 routers automatically inject a default route to the nearest Level 1 router.
- D. Level 1 routers route traffic between autonomous systems.
Answer: B
NEW QUESTION # 42
Which statement is correct about CoS policers on Junos devices?
- A. A policer can assign in-profile traffic to a specific forwarding class.
- B. Traffic that exceeds a policer's traffic profile can be dropped or assigned to a specific drop profile.
- C. A policer does not alter in-profile traffic.
- D. Policers can be configured to buffer traffic that exceeds the policer's traffic profile.
Answer: B
NEW QUESTION # 43
You are asked to implement fault tolerant RPs in your multicast network. Which two solutions would accomplish this behavior? (Choose two.)
- A. Use IGMPv3 with statically defined RPs.
- B. Use BFD with statically defined RPs.
- C. Use MSDP with statically defined RPs.
- D. Use anycast PIM with statically defined RPs.
Answer: C,D
NEW QUESTION # 44
You want to provide Layer 2 connectivity between campus sites using Ethernet switches through a metro Ethernet service provider who is using Q-in-Q tagging on their network.
Referring to the exhibit, what are two design considerations in this environment? (Choose two.)
- A. VXLAN could be implemented on your network across this service provider network.
- B. Each campus switch shown must have S-Tag 300 configured.
- C. L2PT is required on the SP network to support the spanning tree protocol.
- D. Each campus switch shown must have a C-Tag 300 configured.
Answer: B,C
NEW QUESTION # 45
The connection between DC1 and DC2 is routed as shown in the exhibit.
In this scenario, which statement is correct?
- A. L3VPN must be enabled to advertise reachability.
- B. The border devices must be able to perform Layer 3 routing and provide IRB functionality.
- C. Type 2 and Type 5 routes will be exchanged between DC1 and DC2.
- D. An IP prefix route provides encoding for intra-subnet forwarding.
Answer: B
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/concept/evpn-route-type5-understanding.html
NEW QUESTION # 46
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