Pass Your JNCIS-ENT JN0-349 Exam on Jun 08, 2023 with 112 Questions
JN0-349 Free Exam Study Guide! (Updated 112 Questions)
NEW QUESTION # 35
Which two OSPF header fields must match to form an adjacency over a broadcast connection?
(Choose two.)
- A. Options
- B. neighbor
- C. Router priority
- D. Hello interval
Answer: A,D
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/ospf/topics/topic-map/ospf-
overview.html
NEW QUESTION # 36
What are three extended BGP communities? (Choose three.)
- A. target:65000:65000
- B. domain-id: 192.168.1.1:555
- C. 172.16.90.100:888
- D. extend:454:350
- E. Origin: 172.16.100.100:100
Answer: A,B,E
Explanation:
The BGP extended communities attribute format has three fields:
type: administrator: assigned-number. type is the type of extended community and can be either
the 16-bit numerical identifier of a specific BGP extended community or one of these types:
origin-- Identifies where the route originated.
domain-id-- Identifies the OSPF domain from which the route originated.
target-- Identifies the destination to which the route is going.
bandwidth-- Sets up the bandwidth extended community. Specifying link bandwidth allows you to
distribute traffic unequally among different BGP paths.
rt-import-- Identifies the route to install in the routing table.
src -as-- Identifies the AS from which the route originated.
You must specify an AS number, not an IP address.
NEW QUESTION # 37
Which two statements are true about high availability on Junos devices? (Choose two.)
- A. BFD is faster at detecting failures than default GRE or OSPF timers.
- B. NSR is independent of helper routers to assist the routing platform in restoring routing protocol information.
- C. BFD is slower at detecting failures than default GRE or OSPF timers.
- D. NSR is dependent on helper routers to assist the routing platform in restoring routing protocol information.
Answer: A,B
Explanation:
Explanation
https://www.juniper.net/documentation/en_US/junos/topics/concept/nsr-overview.html
NEW QUESTION # 38
You need to a new ESXi host connected to port ge-0/0/1. One of the VMs configured with VLAN
10 is not reachable from any other device on the switch.
To troubleshoot, you decide to verify of the VMs MAC address is learned properly under VLAN
10.
Which command would you use in this scenario?
- A. Monitor interface ge-0/01
- B. Show vlans 10
- C. Show Ethernet-switching table vlan-id 10
- D. Show interfaces ge-0/01 detail
Answer: C
NEW QUESTION # 39
Which two statements about OSPF not-so-stubby areas are correct? (Choose two.)
- A. The ASBR originates Type 5 LSAs for redistributed external routes.
- B. Type 5 LSAs are translated by the ASBR into Type 7 LSAs.
- C. The ASBR originates Type 7 LSAs for redistributed external routes.
- D. Type 7 LSAs are translated by the ABR into Type 5 LSAs.
Answer: C,D
NEW QUESTION # 40
Which two situations would cause dynamic ARP inspection to drop traffic? (Choose two.)
- A. If the IP address in the ARP packet is deemed invalid
- B. If the requested MAC address exceeds the configured limit on the port
- C. If no IP-to-MAC address entry exists in the DHCP snooping database
- D. If the ARP packet comes from a port that has been configured as trusted
Answer: A,C
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/understanding-and-
using-dai.html#id-understanding-arp-spoofing-and-inspection
NEW QUESTION # 41
Which area is reserved for the OSPF backbone?
- A. Area .3.3.3.3
- B. Area 1.1.1.1
- C. Area 2.2.2.2
- D. Area 0.0.0.0
Answer: D
NEW QUESTION # 42
Referring to the exhibit, which two statements about BGP prefixes advertised by R1 to AS 65501
are true? (Choose two.)
- A. R1 will modify the originator ID attribute in prefixes advertised to AS 65501
- B. R1 will modify the next-hop attribute in prefixes advertised to AS 65501
- C. R1 will modify the cluster list attribute in prefixes advertised to AS 65501
- D. R1 will modify the AS path attribute in prefixes advertised to AS 65501
Answer: C,D
NEW QUESTION # 43
Exhibit.
Which statement is correct about the ISO NET address shown in the exhibit?
- A. The system identifier is 6800.1001.00.
- B. The area identifier is 0001.
- C. The authority and format identifier (AFI) is 00.
- D. This is not a valid NET address.
Answer: B
NEW QUESTION # 44
Based on the output shown in the exhibit, which statement is correct?
- A. This switch has been elected as the root bridge
- B. The ge-0/0/9 interface is using the default priority value
- C. The ge-0/0/15 interface is using the default port cost
- D. This switch has a bridge priority of 32k
Answer: C
NEW QUESTION # 45
Which statement is correct about trunk ports?
- A. Trunk ports must have an IRB assigned to accept untagged traffic.
- B. By default, trunk ports accept only VLAN tagged traffic
- C. Trunk ports mast have an IRB assigned to accept VLAN tagged traffic
- D. By default, a trunk port can have only a single VLAN assigned
Answer: B
NEW QUESTION # 46
Which static route next-hop value indicates that the packet will be silently dropped?
- A. resolve
- B. discard
- C. reject
- D. next-table
Answer: B
NEW QUESTION # 47
Click the Exhibit button.
You manage the Layer 2 network shown in the exhibit. You experience a failure on the ge-0/0/0 link between Switch-1 and Switch-2.
Which statement is correct about the expected behavior?
- A. Switch-2's ge-0/0/2 port role and state will transition to root and forwarding
- B. Switch-2 will become the root bridge for a separate RSTP topology
- C. Switch-2 will remove itself from the RSTP topology
- D. Switch-2's ge-0/0/2 port role and state will remain as designated and forwarding
Answer: A
NEW QUESTION # 48
You want to use filter-based forwarding (FBF) to forward traffic sourced from subnet 10.0.0.0/24
to a specific destination.
Which two routing instance types would enable you to accomplish this task? (Choose two.)
- A. virtual routing and forwarding
- B. virtual switch
- C. virtual router
- D. forwarding
Answer: C,D
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/example/firewall-filter-option-filter-
based-forwarding-example.html
NEW QUESTION # 49
What is the default route preference for BGP?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 50
Click the Exhibit button.
Referring to the output shown in the exhibit, which two statements are correct? (Choose two.)
- A. The device is an ABR.
- B. The device originated the 192.168.1.2 database entry.
- C. The device is not an ABR.
- D. The device originated the 192.168.1.1 database entry.
Answer: A,B
NEW QUESTION # 51
Which two statements about Layer 2 firewall filters are correct? (Choose two.)
- A. You can apply only one firewall filter term per filter.
- B. You can apply only one input filter per VLAN.
- C. You can apply multiple firewall filter terms per filter.
- D. You can apply multiple input filters per VLAN.
Answer: B,C
NEW QUESTION # 52
Which two statements about Layer 2 loop prevention protocols are correct? (Choose two.)
- A. STP distributes the current tree topology using the root bridge.
- B. STP can take 30 to 50 seconds to respond to a topology change.
- C. RSTP can take 30 to 50 seconds to respond to a topology change.
- D. RSTP distributes the current tree topology using the root bridge.
Answer: B,D
NEW QUESTION # 53
Click the Exhibit button.
Referring to the exhibit, which configuration change is needed for an IS-IS Level 1 adjacency between R1 and R2?
- A. Configure the lo0 family ISO address 49.0002.0010.0042.0002.00 on R2
- B. Disable Level 2 on R2's ge-0/0/1 interface
- C. Configure the lo0 family ISO address 49.0002.0010.0042.0002.00 on R1
- D. Enable Level 2 on R1's ge-0/0/1 interface
Answer: A
NEW QUESTION # 54
Which statement is true about Layer 2 firewall filters on EX Series switches?
- A. They are stateful and evaluated by the forwarding plane.
- B. They are stateless and evaluated by the control plane.
- C. They are stateless and evaluated by the forwarding plane.
- D. They are stateful and evaluated by the control plane.
Answer: C
NEW QUESTION # 55
What are two benefits of 802.3ad link aggregation? (Choose two.)
- A. It simplifies interface configuration.
- B. It creates physical layer redundancy.
- C. It increases bandwidth.
- D. It ensures symmetrical paths.
Answer: B,C
NEW QUESTION # 56
In the exhibit, each IP subnet in the network is associated with a unique VLAN ID.
Which action will ensure that Host C will communicate with Host A and Host B?
- A. Configure an IRB interface for each VLAN and associate It with its corresponding VLAN.
- B. Configure a port-based ACL that permits inter-VLAN routing for all configured VLANs.
- C. Configure all switch ports connecting to the host devices as access ports associated with a
common VLAN. - D. Configure all switch ports connecting to the host devices as trunk ports associated with all VLANs
Answer: C
NEW QUESTION # 57
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The JN0-349 exam covers a wide range of topics, including routing policies, OSPF, BGP, IP multicast, Ethernet switching, VLANs, and Spanning Tree Protocol. Candidates are expected to have a solid understanding of Junos OS fundamentals, including CLI navigation, configuration, and troubleshooting. The exam consists of 65 multiple-choice questions, and candidates have 90 minutes to complete it. The passing score for the JN0-349 exam is 65%.
JN0-349 Dumps for JNCIS-ENT Certified Exam Questions and Answer: https://vceplus.practicevce.com/Juniper/JN0-349-practice-exam-dumps.html