[Update Dec 2022] Latest JNCIS-ENT JN0-349 dumps exam material
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Read the latest JNCIS-ENT JN0-349 dumps exam questions and answers online
| Number of exam questions | Exam name | From | Release time |
| 15 | Enterprise Routing and Switching – Specialist (JNCIS-ENT) | Lead4Pass | Dec 12, 2022 |
New Question 1:
Which statement is correct about trunk ports?
A. Trunk ports mast have an IRB assigned to accept VLAN tagged traffic
B. By default, trunk ports accept only VLAN tagged traffic
C. By default, a trunk port can have only a single VLAN assigned
D. Trunk ports must have an IRB assigned to accept untagged traffic.
Correct Answer: B
New Question 2:
Exhibit.
Referring to the exhibit, which policy will export routes to IBGP peers?
A. staric-4
B. scatic-2
C. static-1
D. static.c-2
Correct Answer: A
New Question 3:
Which two statements are correct regarding the root bridge election process when using ST P? (Choose two )
A. A lower system MAC address is preferred
B. A higher bridge priority is preferred
C. A lower bridge priority is preferred
D. A higher system MAC address is preferred
Correct Answer: AC
New Question 4:
Exhibit.
Click the Exhibit button Referring to the exhibit, what will be the IS-IS adjacency result of the configurations?
A. A level 1 and level 2 IS-IS adjacency will form
B. A level 2 IS4S adjacency will form
C. No IS-IS adjacencies will form
D. A level 1 IS-IS adjacency will form
Correct Answer: C
New Question 5:
Exhibit.
***Exhibit is Missing***
Which two statements are correct? (Choose two.)
A. Route 2001:2244:3311:321:233::.128 has been prepended.
B. The active path to2001:2244:3311:321:233::.128 will exist using interface irb.433.
C. Route 2001:2244:3311:321:233::.128 will be advertised to an EBGP peer in AS 62553.
D. The AS path shows two hops to their IBGP routers within autonomous system 62553.
Correct Answer: AB
New Question 6:
Exhibit.
A number of reports from end users indicate that internal and external communications are intermittent and not reliable. You verified the status of the switch ports and determined that they are up and operational. You also noticed a very high level of link bandwidth utilization on those same ports. The current topology of the affected environment is shown in the exhibit.
What would be the cause of the reported issues?
A. A lack of port-based ACLs filtering the traffic flows.
B. A malformed route-based ACL Improperly filtering traffic flows.
C. A misconfigured interior gateway protocol (IGP).
D. A lack of a loop-prevention mechanism or protocol.
Correct Answer: D
New Question 7:
Which OSPF packet type is sent when an OSPF router detects its database is the state?
A. Database description
B. Hello
C. Link-state acknowledgment
D. Link-state request
Correct Answer: D
New Question 8:
In which two STP states is a port active and a MAC address learned? (Choose two.)
A. Blocking
B. Forwarding
C. Disabled
D. Learning
Correct Answer: BD
New Question 9:
Which device is used to separate collision domains?
A. Switch
B. Router
C. Hub
D. firewall
Correct Answer: A
New Question 10:
How many bytes of overhead are added to a packet traversing a GRE tunnel?
A. 20
B. 24
C. 12
D. 16
Correct Answer: B
Explanation: IP-IP adds 20 bytes of overhead GRE adds 24 bytes of overhead
New Question 11:
Click the Exhibit button.
You want to prevent rogue BPDUs from lab devices reaching the internal through the Lab_Switch device. Referring to the exhibit, what should be done to accomplish this task?
A. Configure the three lab ports as edge ports
B. Configure an input filter on interface xe-0/2/0 to discard the RSTP packets
C. Configure the three lab ports under the protocols layer2-control bpdu-block hierarchy on the switch
D. Configure protocols rstp with the bpdu-block-on-edge parameter for interface xe-0/2/0
Correct Answer: C
New Question 12:
Which Junos feature allows you to combine multiple interfaces into a single bundle?
A. VRRP
B. Virtual Classis
C. LAG
D. NSB
Correct Answer: C
New Question 13:
Which two statements about DHCP snooping are correct? (Choose two.)
A. DHCP snooping inspects all DHCP packets on untrusted ports.
B. DHCP snooping uses ARP to add statically defined IP addresses to its database.
C. The DHCP database maps IP addresses. MAC addresses, and the associated VLAN.
D. By default, the Junos OS treats access ports as trusted and trunk ports as untrusted.
Correct Answer: AC
New Question 14:
Which statement is true when using LAGs with an EX4300?
A. Speeds on member links can differ.
B. Member links must be contiguous.
C. Half duplex is supported on the LAG.
D. You can have up to 16 member links per LAG.
Correct Answer: D
New Question 15:
Which three mechanisms are associated with the bridging process? (Choose three.)
A. blocking
B. flooding
C. aging
D. filtering
E. listening
Correct Answer: BCD
Explanation: https://www.juniper.net/documentation/en_US/junos/topics/topic-map/bridging-and-vlans.html
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