JN0-649 Dumps (2024) Prepare Your Exam With 65 Questions
New JN0-649 Dumps - Real Juniper Exam Questions
The JN0-649 certification exam is a comprehensive exam that covers a wide range of topics related to enterprise routing and switching. JN0-649 exam tests candidates on their knowledge of network design principles, routing protocols, security, and troubleshooting. JN0-649 exam consists of multiple-choice questions and simulation questions, which require candidates to demonstrate their practical skills in a simulated environment. JN0-649 exam is designed to assess candidates' ability to design, configure, and troubleshoot enterprise level networks.
Juniper JN0-649 certification exam is a professional-level exam for individuals who have a strong understanding of enterprise routing and switching technologies. JN0-649 exam is designed to test the candidate's knowledge and skills in configuring, troubleshooting, and managing advanced Junos OS routing and switching technologies. The JN0-649 exam is one of the requirements for the Juniper Networks Certified Professional Enterprise Routing and Switching (JNCIP-ENT) certification.
Passing the JN0-649 exam is a significant accomplishment for networking professionals. Enterprise Routing and Switching, Professional (JNCIP-ENT) certification demonstrates that a candidate has a deep understanding of enterprise-level routing and switching technologies and is capable of designing, configuring, and troubleshooting complex network environments. Enterprise Routing and Switching, Professional (JNCIP-ENT) certification is also an excellent way for professionals to advance their careers and increase their earning potential.
NEW QUESTION # 25
Referring to the exhibit, you have placed the cos multifield classifier on all edge interfaces and configured the relevant CoS parameters.
In this scenario, which two statements are correct? (Choose two.)
- A. UDP traffic using the 16000 port will be placed in the best-effort forwarding class and accepted.
- B. SSH traffic using the default port will be placed in the af forwarding class and accepted.
- C. SSH traffic using the default port will be placed in the best-effort forwarding class and accepted.
- D. UDP traffic using the 16000 port will be placed in the voice forwarding class and accepted.
Answer: B,D
NEW QUESTION # 26
Which two statements about BGP communities are true? (Choose two.)
- A. A BGP device can set, append, or modify the community of a route.
- B. A prefix can only belong to one community.
- C. A community is not a transitive attribute.
- D. A prefix can belong to more than community.
Answer: A,B
NEW QUESTION # 27
Referring to the exhibit, which TTL value will be sent to the LLDP neighbors?
- A. 90 seconds
- B. 200 seconds
- C. 400 seconds
- D. 120 seconds
Answer: D
NEW QUESTION # 28
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. The DS-2 switch will be root bridge for MSTI 1.
- B. The DS-1 switch will be root bridge for MSTI 2.
- C. The DS-2 switch will be root bridge for MSTI 2.
- D. The DS-1 switch will be root bridge for MSTI 1.
Answer: A,B
Explanation:
Bridge priority is to determine which bridge becomes the designated bridge.
NEW QUESTION # 29
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 peer IP address.
- B. Route 1 will be active because of the peer IP address.
- C. Route 2 will be active because of the router ID.
- D. Route 1 will be active because of the router ID.
Answer: C
NEW QUESTION # 30
You are implementing the route summarization feature of OSPF.
Which two results do you achieve in this scenario? (Choose two.)
- A. It reduced the routing table size, enabling devices to store and process less information.
- B. It provides optimal routing in the network.
- C. It helps in migrating to future multi-area OSPF network designs.
- D. It reduces the impact of topology changes on a device.
Answer: A,D
Explanation:
OSPF inter-area route summarization reduces the routing information exchanged between areas and the size of routing tables, and improves routing performance. OSPF inter-area route summarization enables an ABR to summarize contiguous networks into a single network and advertise the network to other areas.
NEW QUESTION # 31
You are asked to establish full connectivity between all devices in the BGP network. Referring to the exhibit, which two configuration changes will allow BGP route advertisements? (Choose two.)
- A. On R2, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
- B. On R2, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
- C. On R1 and R3, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
- D. On R1 and R3, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
Answer: A,C
NEW QUESTION # 32
In OSPF, how does a router ensure that LSAs advertised to a neighboring router are received?
- A. LSAs are advertised with an acknowledgement bit.
- B. LSAs are acknowledged by the neighboring router.
- C. LSAs are sent over a TCP connection.
- D. LSA flooding guarantees that all routers will receive them successfully.
Answer: B
NEW QUESTION # 33
When redistributing IGP routes into BGP. what information .s used by default on Junos platforms to determine the BGP route's MED attribute value?
- A. the IGP route preference
- B. route protocol source
- C. the IGP Metric
- D. routing information base
Answer: C
NEW QUESTION # 34
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. A routing policy will be required to forward traffic to both next hops.
- B. The TTL value of 1 is set to limit the scope of the EBGP session.
- 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: A,C
NEW QUESTION # 35
You are asked to deploy 802.1X on your EX Series switches. You need to ensure authenticated devices continue to have access to the network even if the authentication server fails.
Which action meets this configuration objective?
- A. Set the reauthentication interval to a value of disable.
- B. Set the reauthentication interval to a value of 0.
- C. Configure the server fail fallback with a value of sustain.
- D. Configure the static MAC bypass for the authentication server.
Answer: C
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/user-access/topics/concept/802-1x- pnac-divert-authentication-understanding-mx-series.html
NEW QUESTION # 36
What are three well-known mandatory BGP attributes? (Choose three.)
- A. next-hop
- B. community
- C. AS-path
- D. origin
- E. MED
Answer: A,C,D
NEW QUESTION # 37
Which two authentication methods are available for OSPF on Juniper devices? (Choose two.)
- A. RSA
- B. Certificate
- C. none
- D. MD5 authentication
Answer: C,D
NEW QUESTION # 38
Which three statements are correct about EVPN route types? (Choose three.)
- A. Type 5 routes carry replication information.
- B. Type 3 routes carry replication information.
- C. Type 1 routes carry endpoint MAC address information.
- D. Type 2 routes carry endpoint IP address information.
- E. Type 2 routes carry endpoint MAC address information.
Answer: C,D,E
NEW QUESTION # 39
What are two supported PoE management modes? (Choose two.)
- A. standalone
- B. static
- C. mixed
- D. class
Answer: B,D
NEW QUESTION # 40
Your enterprise network uses routing instances to support multitenancy. Your Junos devices use BGP to peer to multiple BGP devices. You must ensure that load balancing is achieved within the routing instance.
Which two statements would accomplish this task? (Choose two.)
- A. Configure the multipath option at the [edit routing-instances <instance-name> routing-options] hierarchy.
- B. Configure a load-balance per-packet policy and apply it at the [edit routing-options forwarding-table] hierarchy.
- C. Configure the multipath option at the [edit protocols bgp group <group-name> neighbor] hierarchy.
- D. Configure the multipath option at the [edit protocols bgp group] hierarchy.
Answer: B,D
Explanation:
Fortunately, the Juniper Networks BGP implementation supports the notion of a bandwidth community. This extended community encodes the bandwidth of a given next hop, and when combined with multipath, the load-balancing algorithm distributes flows across the set of next hops proportional to their relative bandwidths. Put another way, if you have a 10-Mbps and a 1-Mbps next hop, on average nine flows will map to the high-speed next hop for every one that uses the low speed.
Use of BGP bandwidth community is supported only with per-packet load balancing.
The configuration task has two parts:
Configure the external BGP (EBGP) peering sessions, enable multipath, and define an import policy to tag routes with a bandwidth community that reflects link speed.
Enable per-packet (really per-flow) load balancing for optimal distribution of traffic.
https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/load-balancing-bgp-session.html
NEW QUESTION # 41
Your network has Junos Fusion configured with MX960 routers as aggregation devices (AD) and QFX5100 switches as satellite devices (SO) Which two statements are coned in this scenario?
(Choose two )
- A. All SDs connected to a single AD must use the same software version.
- B. The Fusion extended ports are configured on the SDs.
- C. The AD runs the Junos software for all its connected SDs.
- D. SDs are added to the AD by configuring the cascade port on the AD.
Answer: B,D
NEW QUESTION # 42
Click the Exhibit button.
There is a functioning OSPFv3 neighborship between Router-1 and Router-2 over the ge-0/0/1 link. However, the 172.100.100.0/24 and 172.101.101.100/24 routes are not being shared through OSPFv3.
Referring to the configuration shown in the exhibit, which two actions must you take to solve the problem? (Choose two.)
- A. Add interface ge-0/0/1 under the IPv4 unicast realm for both routers.
- B. Add interface ge-0/0/2 under OSPFv3 for both routers.
- C. Add the IPv6 family protocol under ge-0/0/2 for both routers.
- D. Add the lo0 interface under OSPFv3 for both routers.
Answer: A,C
NEW QUESTION # 43
You created a firewall rule to protect the Routing Engine. After applying the rule, your OSPF adjacencies dropped.
How would you solve this problem?
- A. Define a router ID under the [edit routing-options] hierarchy.
- B. Apply the firewall filter to the physical ports.
- C. Create a firewall term that allows IP protocol 89.
- D. Configure the loopback interface under the [edit protocols ospf] hierarchy.
Answer: C
NEW QUESTION # 44
The connection between DC1 and DC2 is routed as shown in the exhibit.
In this scenario, which statement is correct?
- A. The border devices must be able to perform Layer 3 routing and provide IRB functionality.
- B. L3VPN must be enabled to advertise reachability.
- 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: A
NEW QUESTION # 45
Which two statements are correct about the deployment of EVPN-VXLAN on QFX Series devices? (Choose two.)
- A. Type 1 route advertisements always have the single-active flag set to 0.
- B. Junos OS supports underlay replication for BUM traffic forwarding.
- C. Junos OS supports ingress replication for BUM traffic forwarding.
- D. Type 1 route advertisements always have the single-active flag set to 1.
Answer: A,C
Explanation:
BUM Traffic Forwarding
Junos devices that use MPLS encapsulation for EVPNs can only use ingress replication at this time.
Ingress replication means, to flood traffic to remote PE routers, the traffic has to be replicated, once for each remote PE router.
The EVPN label for this BUM traffic is learned per PE router from the route type 3, inclusive multicast Ethernet tag route.
This table shows the format of the inclusive multicast Ethernet tag route.
All-Active Redundancy (4)
This diagram shows the format of the type 1 route, A-D route per ES. The split horizon label is advertised as part of an extended community attached to the type 1 route. The split horizon label is also called the ESI label. The extended community also indicates what type of redundancy mode is used for this given ESI: single-active represented by binary 1 or active-active represented by binary 0.
NEW QUESTION # 46
Which two statements are true about PIM source-specific multicast (SSM)? (Choose two.)
- A. IGMPv3 is required.
- B. S, G is always used.
- C. A Different group address must be used by each source.
- D. The receiver DR builds a source-base tree to the RP.
Answer: A,B
NEW QUESTION # 47
Referring to the exhibit, which statement is correct?
- A. The route is learned from a multipath BGP session.
- B. The route is learned from only one neighbor.
- C. The route is learned from three different neighbors.
- D. The route is learned from a multihop BGP session.
Answer: B
NEW QUESTION # 48
What are two similarities between OSPFv2 and OSPFv3? (Choose two.)
- A. support for multiple instances per link
- B. protocol processing per link, not per subnet
- C. 32-bit router ID
- D. virtual links
Answer: C,D
NEW QUESTION # 49
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