Updated PDF (New 2022) Actual Juniper JN0-649 Exam Questions
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Juniper JN0-649 Exam Syllabus Topics:
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NEW QUESTION 83
Click the Exhibit.
You have a workstation and VoIP phone connected to port ge-0/0/1 on an access switch.
Referring to the configuration shown in the exhibit, which statement is true?
- A. Untagged frames that enter the switch on interface ge-0/0/1 will be dropped.
- B. The phone will require a manual VLAN ID configuration.
- C. The phone will not be able to communicate over the network.
- D. All frames that leave the switch on interface ge-0/0/1 will be dropped.
Answer: B
NEW QUESTION 84
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 protocols bgp group] hierarchy.
- B. Configure the multipath option at the [edit protocols bgp group <group-name> neighbor] hierarchy.
- C. Configure the multipath option at the [edit routing-instances <instance-name> routing-options] hierarchy.
- D. Configure a load-balance per-packet policy and apply it at the [edit routing-options forwarding- table] hierarchy.
Answer: A,C
NEW QUESTION 85
You are configuring MSTP to prevent loops in your Layer 2 network. After applying the configuration, you notice that MSTO is not working correctly.
Referring to the exhibit, what is causing the problem?
- A. Incorrect revision number is used.
- B. MSTI-to-VLAN mappings must be the same.
- C. Too many VLANs have been defined.
- D. Context identifier must be specified.
Answer: B
NEW QUESTION 86
What are three well-known mandatory BGP attributes? (Choose three.)
- A. MED
- B. community
- C. next-hop
- D. origin
- E. AS-path
Answer: C,D,E
NEW QUESTION 87
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. static MAC bypass
- C. MACsec
- D. MAC filtering
Answer: B
NEW QUESTION 88
You are adding VNI 101 to your EVPN-VXLAN network, but traffic is not being sent to received.
Referring to the exhibit, which configuration statement will solve the problem?
- A. set routing-instances EVPN1 bridge-domains BD-101 vxlan vni 101
- B. set routing-instances EVPN1 vrf-table-label
- C. set routing-instances EVPN1 vxlan encapsulate-inner-vlan
- D. set routing-instances EVPN1 instance-type evpn
Answer: D
NEW QUESTION 89
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. MSTP
- B. RSTP
- C. VSTP
- D. STP
Answer: B
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 90
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. Configure the static MAC bypass for the authentication server.
- B. Set the reauthentication interval to a value of disable.
- C. Configure the server fail fallback with a value of sustain.
- D. Set the reauthentication interval to a value of 0.
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 91
Which type of BGP is used to peer with a different autonomous system?
- A. classless
- B. external
- C. dynamic
- D. static
Answer: B
NEW QUESTION 92
You recently implemented the configurations shown in the exhibit. After committing these changes, the community devices connected to AS-1 are not able to communication with the appropriate community devices connected to AS-2.
What must be to allow these community devices to communicate?
- A. You must configure to allow the ge-0/0/1 interface on AS-1 as the inter-switch.
- B. You must configure the ge-0/0/1 interface on both switches the inter-switch links.
- C. You must configure an isolation VLAN ID under the vlan-pri VLAN on both switches.
- D. You must configure an isolation VLAN ID under the vlan-pri vlan on the AS-2 switch.
- E. You must configure the ge-0/0/10 interface on AS-1 as the inter-switch link.
Answer: B
NEW QUESTION 93
You configured static mode power management on an EX4300 to provide PoE power to telephone and access point equipment.
Which statement is correct regarding the PoE power budget?
- A. Power is budgeted to devices on a first come, first served basis as devices are connected.
- B. The power budgeted to ports will adjust to how much power a device actually uses.
- C. The power budgeted will be based on the device class connected to each port.
- D. Power is budgeted to a port even if no device is connected to the port.
Answer: D
NEW QUESTION 94
You have deployed sparce-mode multicast in your network using the IGP metrics shown in the exhibit.
Which path will (*, G) traffic follow form the source to the receiver before the (S, G) state is registered?
- A. Source, R1, R4, R5, R6, Receiver
- B. Source, R1, R2, R5, R6, Receiver
- C. Source, R1, R2, R3, R6, Receiver
- D. Source, R1, R2, R5, R2, R3, R6 Receiver
Answer: D
NEW QUESTION 95
Which three statements are correct about EVPN route types? (Choose three.)
- A. Type 1 routes carry endpoint MAC address information.
- B. Type 3 routes carry replication information.
- C. Type 5 routes carry replication information.
- D. Type 2 routes carry endpoint MAC address information.
- E. Type 2 routes carry endpoint IP address information.
Answer: A,D,E
NEW QUESTION 96
Click the exhibit.
Where is the policy shown in the exhibit enforced?
- A. Between the RIB-OUT table and the BGP peer
- B. Between the RIB-IN and the RIB-LOCAL tables
- C. Between the RIB-LOCAL and the RIB-OUT tables
- D. Between the BGP peer and the RIB-In table
Answer: B
NEW QUESTION 97
You are deploying IP phones in your enterprise networks. When plugged in, the IP phones must be automatically provided with the correct VLAN ID needed for sending voice traffic to the EX Series switches.
In this scenario, which two solutions are required to accomplish this task? (Choose two.)
- A. Enable the voice VLAN feature with the appropriate access interfaces and VLAN ID for voice traffic.
- B. Create two VLANs and assign them as VLAN members to the appropriate access interfaces.
- C. Enable LLDP-MED on appropriate access interfaces.
- D. Use LLDP on appropriate interfaces.
Answer: A,C
NEW QUESTION 98
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 4 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 3 routes are present.
Answer: B,D
NEW QUESTION 99
You are deploying an 802.1X solution and must determine what would happen if clients are unable to re-authenticate to the RADIUS server.
In this scenario, which configuration would provide access to the network if the supplicant is already authenticated?
- A. deny
- B. permit
- C. sustain
- D. move
Answer: C
NEW QUESTION 100
Which BGP message type contains NLRI information?
- A. update
- B. open
- C. notification
- D. keepalive
Answer: A
NEW QUESTION 101
Which two multicast listener registration protocols are supported in the Junos operating system?
(Choose two.)
- A. IGMP
- B. PIM
- C. DVMRP
- D. MLD
Answer: A,D
NEW QUESTION 102
Which two statements are correct regarding the behavior shown in the exhibit? (Choose two.)
- A. The ge-1/1/0 interface is configured as secondary for Area 0.
- B. The router is not an ABR.
- C. The ge-1/1/0 interface is configured as secondary for Area 100.
- D. The router is an ABR.
Answer: C,D
NEW QUESTION 103
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. The route is a Type 2 EVPN route.
- B. The host that the route is associated with is multihomed to two leaf nodes.
- C. The host that the route is associated with is single-homed to one leaf node.
- D. The route is a Type 1 EVPN route.
Answer: C,D
NEW QUESTION 104
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. All Web browser requests are redirected to the captive portal until authentication is successful.
- B. When enabled, a captive portal must be applied to each individual interface.
- C. A captive portal can be bypassed using an allowlist command containing a device's IP address.
- D. HTTPS is the default protocol for a captive portal.
Answer: A
NEW QUESTION 105
You must ensure that all management traffic sourced from your Junos devices is set with a specific DSCP code-point value.
Which action will accomplish this task?
- A. Apply the DSCP code-point in an egress policer.
- B. Apply the DSCP code-point to a rewrite rule.
- C. Apply the DSCP code-point to the [edit class-of-service interface lo0.0] hierarchy
- D. Apply the DSCP code-point to the [edit class-of-service host-outbound-traffic] hierarchy.
Answer: D
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/concept/cos-host-outbound-traffic- default-classification-and-dscp-remarking.html To change these default settings, include the forwarding-class class-name statement and the dscp-code-point value statement at the [edit class-of-service host-outbound-traffic] hierarchy level. This feature does not affect transit traffic or incoming traffic.
NEW QUESTION 106
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. Type 1 route advertisements always have the single-active flag set to 1.
- D. Junos OS supports ingress replication for BUM traffic forwarding.
Answer: B,D
NEW QUESTION 107
You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.
Referring to the exhibit, what must you configure to solve the problem?
You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.
Referring to the exhibit, what must you configure to solve the problem?
- A. You must configure a policer to ensure that the queue is not being starved.
- B. You must configure a scheduler to allocate bandwidth to the expedited forwarding queue.
- C. You must configure a rewrite rule to ensure that the traffic is scheduled properly in the device.
- D. You must configure a multifield classifier to put the VoIP traffic in the correct queue.
Answer: B
NEW QUESTION 108
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