JN0-348 PDF Exam Material 2022 Realistic JN0-348 Dumps Questions
Updated Juniper JN0-348 Dumps – PDF & Online Engine
Juniper JN0-348 Exam Topics:
| Section | Objectives |
|---|---|
| Tunnels | Identify the concepts, requirements or functionality of IP tunneling
Demonstrate knowledge of how to configure, monitor or troubleshoot IP tunnels
|
| Protocol Independent Routing | Identify the concepts, operation or functionality of various protocol-independent routing components
Demonstrate knowledge how to configure, monitor, or troubleshoot various protocol-independent routing components
|
| Spanning Tree | Describe the concepts, benefits, operation, or functionality of the Spanning Tree Protocol
Demonstrate knowledge how to configure, monitor, or troubleshoot STP and RSTP
|
| IS-IS | Describe the concepts, operation or functionality of IS-IS
Demonstrate knowledge of how to configure, monitor or troubleshoot IS-IS
|
| High Availability | Identify the concepts, benefits, applications or requirements for high availability in a Junos OS environment
Demonstrate knowledge of how to configure, monitor, or troubleshoot high availability components
|
| Layer 2 Switching or VLANs | Identify the concepts, operation, or functionality of Layer 2 switching for the Junos OS
Describe the concepts, benefits, or functionality of VLANs
Demonstrate knowledge how to configure, monitor or troubleshoot Layer 2 switching or VLANs
|
| Layer 2 Security | Identify the concepts, benefits or operation of various Layer 2 protection or security features
Identify the concepts, benefits or operation of Layer 2 firewall filters
Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 security
|
| BGP | Describe the concepts, operation or functionality of BGP
Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP
|
| OSPF | Describe the concepts, operation or functionality of OSPF
Demonstrate knowledge how to configure, monitor or troubleshoot OSPF
|
The Juniper JN0-348 is the qualifying exam for the Juniper Networks Certified Internet Specialist - Enterprise Routing and Switching (JNCIS-ENT) certification. It validates IT specialists with intermediate-level knowledge required to implement routing and switching concepts in the Juniper Junos.
NEW QUESTION 24
Which statement is true about IP-IP tunnels?
- A. Intermediate devices must have a route to the tunnel source address but do not require a route to the tunnel destination address
- B. Intermediate devices must have a route to the tunnel destination address but do not require a route to the tunnel source address.
- C. Intermediate devices must have a route to the destination address of the traffic being tunneled.
- D. Intermediate devices must have a route to both the tunnel source address and the tunnel destination address.
Answer: B
NEW QUESTION 25
Click to 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 Io0 family ISO address 49.0002.0010.0042.0002.00 on R2.
- B. Configure the Io0 family ISO address 49.0002.0010.0042.0002.00 on R1.
- C. Disable Level 2 on R2'sge-0/0/1 interface.
- D. Enable Level 2 on R1's ge-0/0/1 interface.
Answer: A
Explanation:
Level 1 adjacencies can be formed between routers that share a common area number. We need to change ISO addresses so that both routers have the same area number. If we change the ISO address on R2 49.0002.0010.0042.0002.00, both routers will have 0002 as area number. Note:
Level 2 adjacency can be formed between routers that might or might not share an area number.
http://www.juniper.net/techpubs/en_US/junos16.1/topics/example/isis-multi-level.html
NEW QUESTION 26
What is considered a requirement for passing traffic through GRE tunnels?
- A. Tunnel endpoints must have a route that directs traffic into the tunnel.
- B. You must configure the tunnel on the physical interface connecting to the remote endpoint.
- C. Tunnel endpoints must have static routes pointing to the remote endpoints.
- D. You must be able to reach the remote endpoint through the tunnel.
Answer: D
NEW QUESTION 27
Which statement is true about Layer 2 firewall filters on EX Series switches?
- A. They are stateless and evaluated by the forwarding plane.
- B. They are stateless and evaluated by the control plane.
- C. They are stateful and evaluated by the forwarding plane.
- D. They are stateful and evaluated by the control plane.
Answer: B
NEW QUESTION 28
Click the Exhibit button.
Referring to the exhibit, why is the route for 10.5.5.5 hidden?
- A. It is a martian route.
- B. It is an L3VPN route.
- C. It has an invalid community.
- D. The next hop cannot be resolved.
Answer: D
NEW QUESTION 29
Switch-1 in the exhibit receives a packet from User A with a destination MAC address of
00:26:88:02:74:47. Which statement is correct in this scenario?
- A. Switch-1 sends the packet out ge-0/0/7 only.
- B. Switch-1 floods the packet out ge-0/0/7 and ge-0/0/8.
- C. Switch-1 floods the packet out ge-0/0/6, ge-0/0/7, ge-0/0/8, and ge-0/0/9.
- D. Switch-1 floods the packet out ge-0/0/7, ge-0/0/8, and ge-0/0/9.
Answer: D
Explanation:
To forward a frame destined to that specific mac -address, it will know out of which port to send the frame. Flooding however occurs when the switch does not know of the destination mac - address ?say the switch has not learnt that mac address yet; or maybe that specific entry expired so it got flushed away from the mac-address table. To ensure the frame reaches its intended destination, the switch will replicate that frame out of all ports, less the port where the frame was received that's flooding.
http://blogbt.net/index.php/2015/03/mac-address-table-arp-table-and-unicast-flooding-part-i/
NEW QUESTION 30
Click the Exhibit button.
Referring to the exhibit, which effect does the configuration on R2 have on OSPF routing in the network?
- A. Area 2 will use a default route to reach Area 0 and Area 1.
- B. R2 will block traffic destined to the 192.168.10.0/24 network.
- C. The 192.168.10.0/24 route will not be advertised to Area 1.
- D. A summary route for the 192.168.10.0/24 network will be advertised to Area 0.
Answer: C
NEW QUESTION 31
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. Router A does not send routes learned from Router D to Router B and Router C
- B. Router A sends routes learned from Router E to Router B, Router C, and Router D
- C. Router A does not send routes learned from Router E to Router B, Router C, and Router D
- D. Router A sends routes learned from Router D to Router B and Router C
Answer: A,B
NEW QUESTION 32
Exhibit.
In the exhibit, each IP subnet in the network is associated with a unique VLAN ID Which action wilt ensure that Host C will communicate with host A and Host B?
- A. Configure a port-based ACL that permits inter-VLAN routing for all configured VLANs.
- B. Configure an IRB interface for each VLAN and associate it with its corresponding VLAN
- C. Configure all switch ports connecting to the host devices as trunk ports associated with all VLANS.
- D. Configure all switch ports connecting to the host devices as access ports associated with a common VLAN.
Answer: D
NEW QUESTION 33
You are adding a new EX4300 member switch to your existing EX4300 Virtual Chassis. However, the new member is not running the same Junos version as the other members.
By default, what is the expected behavior in this scenario?
- A. The virtual Chassis will transition into a brain situation between the existing master Routing Engine and the switch running the different version.
- B. The new switch is not recognized by the virtual Chassis.
- C. The new switch will be assigned a member ID and then placed in an inactive state.
- D. The new switch will be assigned a member ID and then placed in an inactive state.
Answer: D
Explanation:
Explanation
https://www.juniper.net/documentation/en_US/junos/topics/concept/virtual-chassis-ex4200-software-automatic-u
NEW QUESTION 34
You were provided a network diagram that told you to number your network from the
191.255.0.0/16 space. OSPF is enabled and adjacencies are up, but no routers are learning any routes. What can explain this?
- A. The default OSPF import policy rejects all OSPF routes, so you need to apply import policy
- B. You need to enable OSPF on the lo0 interface to provide a route to the RID of each router in the network
- C. The default OSPF export policies advertise nothing, so you need to apply export policy
- D. You need to modify the martian table with a 191.255.0.0/16 accept statement
Answer: D
NEW QUESTION 35
Click the Exhibit button.
Referring to the output shown in the exhibit, which two statements are true?
- A. The route is not active
- B. The route is active
- C. The route is a generate route
- D. The route is an aggregate route
Answer: A,C
NEW QUESTION 36
You configured a GRE tunnel that traverses a path using default MTU settings. You want to ensure that packets are not dropped of fragmented.
In this scenario, what is the maximum packet size that would traverse the GRE tunnel?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 37
Referring to the exhibit, a packet tagged with vlan-id 34 arrives on interface xe-0/2/3.0 with a source MAC that does not match an entry in the DHCP snooping database.
In this scenario, which statement is correct?
- A. An error message is logged and the packet is forwarded.
- B. The source MAC is added to the DHCP snooping database.
- C. The packet is forwarded andno error message is logged.
- D. The destination MAC added to the DHCP snooping database.
Answer: B
NEW QUESTION 38
You are asked to ensure that a designated interface on an EX Series switch only allows a specific server to pass traffic.
Which two features are required to satisfy this solution? (Choose two.)
- A. IP source guard
- B. MAC limiting
- C. proxy ARP
- D. persistent MAC learning
Answer: B,D
NEW QUESTION 39
Which statement is true about Layer 2 firewall filters on EX Series switches?
- A. They are stateless and evaluated by the forwarding plane.
- B. They are stateless and evaluated by the control plane.
- C. They are stateful and evaluated by the forwarding plane.
- D. They are stateful and evaluated by the control plane.
Answer: A
NEW QUESTION 40
Exhibit.
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 a port-based ACL that permits inter-VLAN routing for all configured VLANs.
- B. Configure an IRB interface for each VLAN and associate It with its corresponding VLAN.
- C. Configure all switch ports connecting to the host devices as trunk ports associated with all VLANs
- D. Configure all switch ports connecting to the host devices as access ports associated with a common VLAN.
Answer: B
NEW QUESTION 41
Click the Exhibit button. The exhibit shows that Host-1 and Host-2 are attached to the switch and associated with IRB irb.1.
However, traffic sent from Host-1 to Host-2 is not blocked as expected.
Why is this problem occurring?
- A. The block-host filter is applied in the wrong direction on theirb.1interface.
- B. The Block-Host-2 term does not contain the MAC address of Host-2.
- C. Inter-VLAN traffic cannot be blocked by a router-based filter.
- D. Intra-VLAN traffic cannot be blocked by a router-based filter.
Answer: A
Explanation:
The block-host filter blocks traffic with source address of 10.10.12.102, which is traffic sent from Host-2. It should block traffic from Host-1, with the source address of 10.10.12.101.
NEW QUESTION 42
Which statement is true about GRE tunnels?
- A. GRE tunnels support point-to-multipoint.
- B. Packets are encapsulated unchanged before entering the tunnel.
- C. GRE tunnels ensure that a packet does not live forever.
- D. GRE tunnels can be used for only IP packets.
Answer: B
NEW QUESTION 43
Exhibit.
You have configured OSPF routing as shown in the exhibit. You notice that all interfaces have formed full adjacencies, with the exception of the interfaces connecting R3 and R4 with a status of 2Way.
What is the reason for this status?
- A. The two routers must both be configured as DR routers.
- B. DROther routers will not form a full adjacency with each other.
- C. The two routers must be configured in different areas.
- D. The interface-type is not configured as p2p.
Answer: B
NEW QUESTION 44
What are two characteristics of OSPF ABRs? (Choose two.)
- A. ABRs cannot be part of the backbone and another area at the same time.
- B. ABRs link two OSPF areas
- C. ABRs inject information from outside the OSPF domain.
- D. ABRs transmit routing information between the backbone and other areas.
Answer: B,D
NEW QUESTION 45
Click the Exhibit button.
Referring to the exhibit, Router-1 is attempting to form an EBGP session with Router-2. However, BGP routes are never exchanged between Router-1 and Router-2.
What is causing the problem?
- A. The EBGP session is configured to use the wrong AS
- B. The keep all statement is preventing the session from establishing
- C. The EXT group is not configured as an external type BGP peering session
- D. The TCP-MSS value is set too low
Answer: C
NEW QUESTION 46
You received an alert from your monitoring system that the master Routing Engine (RE) on an EX4300 switch in a virtual chassis has hardware issues and might need to be replaced. Because the switch already had graceful Routing Engine switchover (GRES) enabled and configured, you must perform a manual switchover to the backup RE to avoid disruption.
Which command would be used to perform the manual RE switchover?
- A. Log in to the backup RE and issue the request chassis routing-engine master acquire operation command.
- B. Log in to the backup RE and issue the request iccp-service operation command.
- C. Log in to the backup RE and issue the request chassis-control operation command.
- D. Log in to the backup RE and issue the request chassis routing-engine master switch operation command.
Answer: D
NEW QUESTION 47
Which two statements about RSTP are correct? (Choose two.)
- A. RSTP is not backwards compatible with STP.
- B. RSTP permits multiple root bridges within a Layer 2 domain.
- C. RSTP permits only a single root bridge within a Layer 2 domain.
- D. RSTP is backwards compatible with STP.
Answer: B,D
NEW QUESTION 48
What kind of filter would be written to protect control traffic destined for the switch?
- A. A filter applied to the loopback interface
- B. A filter applied to the management interface
- C. A filter applied to the native VLAN
- D. A filter applied to the default VLAN
Answer: A
NEW QUESTION 49
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