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Practice with JN0-650 Dumps for JNCIS-ENT Certified Exam Questions & Answer
NEW QUESTION # 32
You are configuring a EX Series switch to provide power to PoE enabled devices. Some of the devices do not support LLDP-MED.
How can you configure the switch to support the connected devices?
- A. Configure PoE for static mode on ports that do not support LLDP-MED and class mode on ports that support LLDP-MED.
- B. Use standard LLDP for device discovery.
- C. Configure PoE for class mode on all ports.
- D. Configure PoE for static mode on all ports.
Answer: D
NEW QUESTION # 33
You want to identify routes that pass through AS 5762 in order to apply different routing policies to those routes. You do not peer with AS 5762.
Which AS-PATH regular expression will identify only those routes?
- A. as-path specific-routes "5762{1,2} .*"
- B. as-path specific-routes ".* 5762 .*
- C. as-path specific-routes "5762 .*"
- D. as-path specific-routes ".* 5762? .*"
Answer: B
NEW QUESTION # 34
When implementing BGP routing policy, which Junos policy-statement term action can be used to reject a route?
- A. next policy
- B. reject
- C. accept
- D. next term
Answer: B
NEW QUESTION # 35
Which protocol is used for port-level access control and authentication?
- A. 802.1X
- B. AES
- C. IPsec
- D. MD5
Answer: A
NEW QUESTION # 36
In OSPF, which LSA types are commonly included in a router's link-state database in a standard (non-NSSA) area? (Choose two)
- A. Type 1
- B. Type 5
- C. Type 9
- D. Type 7
Answer: A,B
NEW QUESTION # 37
Referring to the configuration shown in the exhibit, how many of the routes received from 10.0.0.2 will be active in the routing table?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 38
You are implementing the route summarization feature of OSPF.
Which two results do you achieve in this scenario? (Choose two.)
- A. It reduces the impact of topology changes on a device.
- B. It helps in migrating to future multi-area OSPF network designs.
- C. It reduced the routing table size, enabling devices to store and process less information.
- D. It provides optimal routing in the network.
Answer: A,C
NEW QUESTION # 39
Which step comes first in the BGP route selection process after next-hop reachability is verified?
- A. Compare Local Preference values (highest preferred).
- B. BGP selects the route with the highest MED value.
- C. BGP prefers routes from the router with the highest IP address.
- D. BGP always prefers eBGP learned routes over iBGP learned routes.
Answer: A
NEW QUESTION # 40
Packets enter a Juniper device and are classified with CoS. During the processing of the packet, the classification of the packets is changed.
Which two statements are true regarding default CoS rewrite on Junos OS devices? (Choose two.)
- A. Bits associated with MPLS traffic class are not re-written to match the new traffic classification values.
- B. Bits associated with DSCP traffic class are not re-written to match the new traffic classification values.
- C. Bits associated with a DSCP traffic class are rewritten to match the new traffic classification values.
- D. Bits associated with MPLS traffic class are rewritten to match the new traffic classification values.
Answer: B,D
NEW QUESTION # 41
Exhibit
Referring to the exhibit. R2 receives a packet from the multicast source on its ge-0/0/4 0 interface.
Which two statements are correct in this scenario? (Choose two.)
- A. R2 determines that the packet is coming in on an interface that is on the reverse path back to the source.
- B. The packet is discarded
- C. R2 verifies the existing unicast routing table and determines that this interface is not on the reverse path back to the source
- D. All interfaces other than ge-0/0/4.0 will be on the outgoing interface list.
Answer: B,C
Explanation:
The exhibit illustrates a PIM multicast environment where router R2 has received a multicast packet from Source 1 (192.168.100.10) on its ge-0/0/4.0 interface. To prevent loops, PIM-SM uses a mechanism called Reverse Path Forwarding (RPF).
* RPF Check Process (Option A): When a multicast packet arrives, the router performs an RPF check by looking up the source's IP address in its unicast routing table (typically inet.0).
* The exhibit's command output, show multicast rpf 192.168.100.10, explicitly shows that for the source network $192.168.100.0/24$, the RPF interface is ge-0/0/1.0.
* Because the packet actually arrived on ge-0/0/4.0 instead of the expected ge-0/0/1.0 interface, the RPF check fails.
* Packet Discard (Option C): According to standard PIM-SM operation in Junos OS 24.4, if a multicast packet fails the RPF check-meaning it arrived on an interface that the router does not use to reach the source via unicast-the packet is discarded. This is a fundamental loop-prevention mechanism that ensures multicast traffic is only accepted from the shortest path toward the source.
* Option B is incorrect because the router will not add any interfaces to the Outgoing Interface List (OIL) for a packet that fails the initial RPF check.
* Option D is incorrect because the exhibit clearly shows the interface in the RPF table (ge-0/0/1.0) is different from the interface where the packet was received (ge-0/0/4.0).
NEW QUESTION # 42
Which EVPN route type is used for fast convergence and for advertising the split horizon label?
- A. Type 1
- B. Type 2
- C. Type 5
- D. Type 4
Answer: A
NEW QUESTION # 43
Exhibit
You are deploying a new campus switching environment using various EX Series switch models. The devices attached to one of the new EX Senes switches include IP phones, loT devices, and wireless access points (APs) requiring power over Ethernet (PoE) with varying power requirements. A sample output from one of these switches is shown in the exhibit.
In this scenario, which two statements are correct? (Choose two.)
- A. Port ge-0/0/0 is enabled and has its maximum power and device class designations statically configured.
- B. The switch is capable of supplying up to 60 W of power to attached PoE devices.
- C. Port ge-0/0/0 is enabled and has dynamically learned maximum power and device class designations.
- D. The switch is capable of supplying up to 30 W of power to attached PoE devices.
Answer: C,D
Explanation:
The exhibit shows the output of the show poe interface command on a Juniper switch.
VTEP Power Capabilities (Statement D): The exhibit shows the Pair/Mode as 2P/AT, which refers to the IEEE 802.3at (PoE+) standard. Under this standard, a switch can supply up to 30 W of power per port to attached devices (PDs). * Dynamic Learning (Statement C): Looking at the Max power column for port ge-0/0
/0, it shows 19.5W(L). The (L) indicator signifies that the power has been dynamically learned (negotiated) via LLDP or hardware classification, rather than being statically configured by an administrator. Additionally, it has identified the device as Class 4, which is a standard dynamic classification for PoE+ devices.
Why others are incorrect: Statement A (60 W) refers to the 802.3bt (PoE++) standard, which is not indicated here. Statement B is incorrect because the " (L) " confirms the configuration is not static.
NEW QUESTION # 44
An incorrectly configured routing policy at your service provider led to several hundred thousand routes being placed in your edge router's routing table In this scenario, how would you limit the number of prefixes received on a BGP peer session?
- A. Enable the graceful-restart BGP parameter in the edge router configuration.
- B. Enable the damping BGP parameter in the edge router configuration
- C. Enable the advertise-inactive BGP parameter in the edge router configuration.
- D. Enable the prefix-limit BGP parameter in the edge router configuration.
Answer: D
Explanation:
When a peer incorrectly floods your router with an excessive number of routes, it can exhaust system resources and crash the routing engine.
* Prefix-Limit (Option B):The prefix-limit (or accepted-prefix-limit) parameter is the primary defense against such "route leaks".
* You can set amaximum thresholdfor the number of prefixes allowed from a specific BGP neighbor or group.
* When the limit is reached, Junos can be configured to either just log a warning ortear down the BGP sessionentirely (using the teardown keyword) to protect the router.
* This prevents the "hundreds of thousand routes" from ever being fully processed or installed into the main routing table.
* Damping (Option A):Damping is used to suppress unstable, "flapping" routes, but it does not limit the total volume of stable routes received.
NEW QUESTION # 45
What is the primary benefit of implementing BGP multipath in a network?
- A. To improve network redundancy and load balancing.
- B. To increase the number of hops in the AS path.
- C. To simplify the BGP routing policy.
- D. To decrease BGP convergence time.
Answer: A
NEW QUESTION # 46
Your network has Junos Fusion configured with MX960 routers as aggregation devices (AD) and QFX5100 switches as satellite devices (SD).
Which two statements are correct in this scenario? (Choose two.)
- A. The AD runs the Junos software for all its connected SDs.
- B. The Fusion extended ports are configured on the SDs.
- C. All SDs connected to a single AD must use the same software version.
- D. SDs are added to the AD by configuring the cascade port on the AD.
Answer: B,D
NEW QUESTION # 47
You are deploying new Juniper EX Series switches in a network that currently is using Cisco's Per- VLAN spanning tree plus (PVST+) and you must provide compatibility with this environment.
Which spanning tree protocol do you deploy in this scenario?
- A. VSTP
- B. STP
- C. RSTP
- D. MSTP
Answer: A
NEW QUESTION # 48
Which two statements are true regarding MDSP? (Choose two.)
- A. MSDP is required for multi-domain multicast routing.
- B. MSDP is used to share Multicast source information when using Anycast-RP.
- C. MSDP is used to share multicast receiver information across domain boundaries.
- D. MSDP is used to share Multicast source information across domain boundaries.
Answer: B,D
NEW QUESTION # 49
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. permit
- B. move
- C. sustain
- D. deny
Answer: B
NEW QUESTION # 50
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