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Juniper JN0-649 exam is a professional-level certification exam that is designed to test the candidate's knowledge and skills in enterprise routing and switching. JN0-649 exam is intended for individuals who have a strong understanding of networking technologies and protocols and are looking to advance their careers in the field of enterprise networking. The JN0-649 exam covers a wide range of topics, including advanced routing protocols, network virtualization, Layer 2 and Layer 3 switching, and security protocols.
The Enterprise Routing and Switching, Professional (JNCIP-ENT) certification exam consists of multiple-choice and hands-on lab questions. The multiple-choice questions are designed to test a candidate's knowledge of Junos technologies, network protocols, and network security standards. The hands-on lab questions are intended to demonstrate the candidate's practical skills in configuring and troubleshooting Juniper Networks devices.
Juniper JN0-649 certification exam is designed for professionals who are seeking to validate their skills in enterprise routing and switching. Enterprise Routing and Switching, Professional (JNCIP-ENT) certification is ideal for individuals who work with Juniper Networks routers and switches in a business environment. JN0-649 exam tests the knowledge and skills required to configure, troubleshoot, and maintain Juniper Networks devices.
NEW QUESTION # 16
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 a load-balance per-packet policy and apply it at the [edit routing-options forwarding-table] hierarchy.
- B. Configure the multipath option at the [edit protocols bgp group <group-name> neighbor] hierarchy.
- C. Configure the multipath option at the [edit protocols bgp group] hierarchy.
- D. Configure the multipath option at the [edit routing-instances <instance-name> routing-options] hierarchy.
Answer: A,C
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 # 17
Referring to the exhibit, which statement is true?
- A. Additional users will automatically be allowed to connect to ge-0/0/15
- B. Only 802. 1X authentication will be used for devices connecting to ge-0/0/15
- C. The current device is authenticated using MAC RADIUS
- D. The current device was allowed after authentication attempts to the RADIUS server failed
Answer: D
NEW QUESTION # 18
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. BPDUs from the root bridge for VLAN 10 have been received on the ge-0/0/7.0 interface.
- B. DS-1 is the root bridge for VLAN 10.
- C. Default VSTP bridge priority values are configured.
- D. BPDUs from the root bridge for VLAN 20 have been received on the ge-0/0/7.0 interface.
Answer: A,D
NEW QUESTION # 19
Your company has expanded into office space across the street. The new office space has a single Ethernet connection connected to an unmanaged switch. You must sort traffic based on the IP address into different VLANs once the traffic arrives on your EX Series switches.
Which mechanism would you use to accomplish this task?
- A. Q-in-Q tunneling
- B. dynamic VLANs
- C. filter-based VLANs
- D. MVRP
Answer: C
Explanation:
https://next-hop-self.com/juniper-filter-based-vlan-assignment.html
https://www.juniper.net/documentation/us/en/software/junos/routing-
policy/topics/example/firewall-filter-ex-series-configuring.html
NEW QUESTION # 20
You are using 802.1X authentication in your network to secure all ports. You have a printer that does not support 802.1X and you must ensure that traffic is allowed to and from this printer without authentication.
In this scenario, what will satisfy the requirement?
- A. MAC RADIUS
- B. MACsec
- C. static MAC bypass
- D. MAC filtering
Answer: C
NEW QUESTION # 21
Referring to the exhibit, how will router E quickly learn that the remote MAC addresses are no longer reachable through the router attached to the failed link?
- A. Router E receives Type 1 withdrawal messages from router C.
- B. Router E receives Type 1 withdrawal messages from router D.
- C. Router E receives Type 2 withdrawal messages from router D.
- D. Router E receives Type 2 withdrawal messages from router C.
Answer: B
NEW QUESTION # 22
You are running OSPF as your IGP. The interfaces connecting two routers are in the ExStart state. You notice that something is incorrect with the configuration. Referring to the exhibit, which statement is correct?
- A. The IP addresses are incorrect.
- B. The MTU setting are incorrect.
- C. The interface type is incorrect.
- D. The subnet mask is incorrect.
Answer: A
NEW QUESTION # 23
Which two statements are true about the 802. 1X output shown in the exhibit? (Choose two.)
- A. EAPoL traffic will not be sent out of the use ge-0/0/1 interface
- B. EAPoL traffic will be sent out of the ge-0/0/1 interface.
- C. The supplicant is not authenticated using 802. 1X
- D. The supplicant is authenticated using 802. 1X
Answer: B,C
NEW QUESTION # 24
When using wide metrics, which two statements about route advertisement between IS-IS levels are correct? (Choose two.)
- A. Level 1 routes are advertised to Level 2 routers by default.
- B. If wide-metrics-only is configured, Level 1 routes are not advertised to Level 2 routers by default.
- C. Level 1 and Level 2 routers do not advertise Level 2 routes into the Level 1 area by default.
- D. Level 1 routes advertised as external routes into Level 1 are not advertised to any Level 2 routers by default.
Answer: B,C
NEW QUESTION # 25
Click the Exhibit.
You have just configured on an OSPF adjacency between two routers. After you commit the configuration, you notice that your adjacency is not up.
Referring to the exhibit, what would cause the problem?
- A. You must configure lo on R2.
- B. You must configure on interface-type o n R2.
- C. You must configure bfd on R2.
- D. You must configure hello and dead intervals on R1.
Answer: B
NEW QUESTION # 26
Which two statements are correct regarding the behavior shown in the exhibit? (Choose two.)
- A. The router is an ABR.
- B. The ge-1/1/0 interface is configured as secondary for Area 100.
- C. The router is not an ABR.
- D. The ge-1/1/0 interface is configured as secondary for Area 0.
Answer: A,B
NEW QUESTION # 27
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 R1 and R3, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
- C. On R2, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
- D. On R1 and R3, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
Answer: A,D
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/ref/statement/advertise-peer-as-edit-protocols-bgp.html
NEW QUESTION # 28
Referring to the exhibit, which two statements are true with regards to deploying CoS? (Choose two.)
- A. You should apply MF classifiers on the LAN-facing interfaces of the routers
- B. You should apply BA classifiers on the point-to point interfaces of the routers.
- C. You should apply BA classifiers on the LAN-facing interfaces of the routers
- D. You should apply MF classifiers on the point-to-point interfaces of the routers
Answer: A,B
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
Referring to the exhibit, how is R1 learning the route from R2?
- A. R2 has interface ge-0/0/2 configured in another area under OSPFv3.
- B. R2 has interface ge-0/0/2 configured as a passive interface under OSPFv3.
- C. R2 has an export policy with external type 2 configured.
- D. R2 has an export policy with external type 1 configured.
Answer: D
NEW QUESTION # 31
Which address range is used for source-specific multicast?
- A. 233.0.0.0/8
- B. 239.0.0.0/8
- C. 232.0.0.0/8
- D. 224.2.0.0/16
Answer: C
NEW QUESTION # 32
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 2 will be active because of the peer IP address.
- C. Route 1 will be active because of the peer IP address.
- D. Route 1 will be active because of the router ID.
Answer: D
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 # 33
Packets enter a Juniper device and are classified as best effort. During the processing of the packet, the classification of the packets is changed to expedited forwarding by a multi-field classifier. The device is using the default CoS policies Which statement is true in this scenario?
- A. The packet is forwarded according to the original packet classification, and the DSCP bits are rewritten to the new class.
- B. The packet is forwarded according to the new packet classification, and the DSCP bits are rewritten to the new class.
- C. The packet is forwarded according to the original packet classification, and the DSCP bits do not change.
- D. The packet is forwarded according to the new packet classification, and the DSCP bits do not change.
Answer: D
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. The TTL value of 1 is set to limit the scope of the EBGP session.
- B. Both the next hops will be used to forward traffic to R2.
- C. The ttl statement must be configured to accommodate peering to a loopback address of a directly connected peer.
- D. A routing policy will be required to forward traffic to both next hops.
Answer: C,D
NEW QUESTION # 35
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