JN0-349 Practice Juniper Verified Answers - Pass Your Exams For Sure! [2022]
Valid Way To Pass JNCIS-ENT's JN0-349 Exam
NEW QUESTION 28
Exhibit.
You manage the layer 2 network shown in the exhibit, You experience a failure on the ge-0/0/0 link between Swicth-1 and Switch-2.
Which statement is correct about expected behavior?
- A. Swicth-2's ge0/0/2 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 ge0/0/2 port role and state will remain as designated and forwarding.
Answer: A
NEW QUESTION 29
Referring to the exhibit, what do the asterisks (*) indicate?
- A. The router receive the entries.
- B. The router originated the entries.
- C. The entries are new.
- D. The entries are state.
Answer: B
NEW QUESTION 30
Referring to the exhibit, which statement is correct?
- A. The ge-0/0/15 interface is using the default port cost.
- B. This switch is currently blocking all traffic.
- C. This switch has a bridge priority of 8k.
- D. The ge-0/0/9 interface is using the default interface priority value.
Answer: C
NEW QUESTION 31
What are two types of IS-IS PDUs? (Choose two.)
- A. link-state PDU
- B. open PDU
- C. VRF PDU
- D. hello PDU
Answer: A,D
Explanation:
IS-IS hello (IIH) PDUs broadcast to discover the identity of neighboring IS-IS systems and to
determine whether the neighbors are Level 1 or Level 2 intermediate systems. Link-state PDUs
contain information about the state of adjacencies to neighboring IS-IS systems.
NEW QUESTION 32
Exhibit.
Which statement is true about the configuration shown in the exhibit?
- A. The preference for the 172.30.25.1 next hop is 5.
- B. The preferred next hop is 172.30.25.5.
- C. The preference for the 172.30.25.5.1 next hop is 7.
- D. 172.30.25.5.1 is the preference next hop.
Answer: B
NEW QUESTION 33
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. You need to modify the martian table with a 191.255.0.0/16 accept statement
- B. The default OSPF import policy rejects all OSPF routes, so you need to apply import policy
- C. The default OSPF export policies advertise nothing, so you need to apply export policy
- D. You need to enable OSPF on the lo0 interface to provide a route to the RID of each router in the network
Answer: A
NEW QUESTION 34
Which two OSPF header fields must match to form an adjacency over a broadcast connection? (Choose two.)
- A. Hello interval
- B. Options
- C. Router priority
- D. neighbor
Answer: A,B
Explanation:
Explanation
https://www.juniper.net/documentation/us/en/software/junos/ospf/topics/topic-map/ospf-overview.html
NEW QUESTION 35
You must implement filter-based forwarding. You need to direct traffic from 192.168.1.0/24 through vr1 and traffic from 10.210.0.128/26 through vr2.
Which configuration is correct in this scenario?
- A. firewall {
family inet {
filter fbf-filter1 {
term match-192-subnet {
from {
source-address {
192.168.2.0/26;
}
}
then {
routing-instance vr2;
}
}
term match-10-subnet {
from {
source-address {
10.210.1.128/26;
}
}
then {
routing-instance vr1;
}
}
}
}
} - B. firewall {
family inet {
filter fbf-filter1 {
term match-192-subnet {
from {
source-address {
192.168.1.0/24;
}
}
then {
routing-instance vr1;
}
}
term match-10-subnet {
from {
source-address {
10.210.0.128/26;
}
}
then {
routing-instance vr2;
}
}
}
}
} - C. firewall {
family inet {
filter fbf-filter1 {
term match-192-subnet {
from {
source-address {
192.168.1.0/26;
}
}
then {
routing-instance vr2;
}
}
term match-10-subnet {
from {
source-address {
10.210.0.128/26;
}
}
then {
routing-instance vr1;
}
}
}
}
} - D. firewall {
family inet {
filter fbf-filter1 {
term match-192-subnet {
from {
source-address {
192.168.0.0/24;
}
}
then {
routing-instance vr1;
}
}
term match-10-subnet {
from {
source-address {
10.210.0.128/27;
}
}
then {
routing-instance vr2;
}
}
}
}
}
Answer: B
NEW QUESTION 36
Which two situations would cause dynamic ARP inspection to drop traffic? (Choose two.)
- A. If the requested MAC address exceeds the configured limit on the port
- B. If the ARP packet comes from a port that has been configured as trusted
- C. If the IP address in the ARP packet is deemed invalid
- D. If no IP-to-MAC address entry exists in the DHCP snooping database
Answer: C,D
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 37
You are enabling dynamic ARP inspection on an EX4300 switch.
Which service is enabled by default in this scenario?
- A. DHCP snooping
- B. IP Source Guard
- C. persistent MAC learning
- D. MAC limiting
Answer: A
NEW QUESTION 38
Which statement is true about IP-IP tunnels?
- A. The packet header is replaced before entering the tunnel
- B. The packet is encapsulated unchanged before entering the tunnel
- C. The time-to-live value of the original packet Is decremented.
- D. IP-IP tunnels are protocol agnostic.
Answer: B
NEW QUESTION 39
Which statement is true about IP-IP tunnels?
- A. Intermediate devices must have a route to the tunnel destination address but do not require a route to the tunnel source address.
- B. Intermediate devices must have a route to the destination address of the traffic being tunneled.
- C. Intermediate devices must have a route to the tunnel source address but do not require a route to the tunnel destination address
- D. Intermediate devices must have a route to both the tunnel source address and the tunnel destination address.
Answer: D
Explanation:
Explanation
Routing is based on destination, not source; Only the route for the destination tunnel endpoint is necessary for each packet.If you're thinking about a lab environment with a single intermediary device, it's incidental that it will have a route for both tunnel endpoint IPs. Only the relevant destination will be considered with each packet it processes.
NEW QUESTION 40
You have a conference room with an open network port that is used by employees to connect to the network.
You are concerned about rogue switches being connected to this port
Which two features should you enable on your switch to limit access to this port? (Choose two.)
- A. DHCP snooping
- B. 802.1X
- C. dynamic ARP inspection
- D. MAC limiting
Answer: A,C
NEW QUESTION 41
You have configured the router with an IS-IS interface metric of 2048.
However, the IS-IS interface metric of 63 is being applied for the interface of this router.
What must you do to enable the larger metric value?
- A. Enable wide metrics.
- B. Enable level 1 IS-IS routing.
- C. Disable narrow metrics.
- D. Restart the IS-IS protocol.
Answer: A
NEW QUESTION 42
Host-1 was recently added in the network and is attached to ge-0/0/10 on Switch-A.
Host-1 is powered on and has its interface configured with default Layer 2 settings and an IP
address on the 172.17.12.0/24 IP subnet.
Host-1's MAC address is not shown in Switch-A's bridging table.
What are three explanations for this state? (Choose three.)
- A. The ge-0/0/10 interface is configured as a trunk port.
- B. The ge-0/0/10 interface does not have an associated IRB.
- C. The ge-0/0/10 interface is configured as an access port.
- D. The ge-0/0/10 interface has not received any traffic from Host-1.
- E. The ge-0/0/10 interface is not operationally or administratively up.
Answer: B,D,E
NEW QUESTION 43
Which two characteristics are true for EBGP peerings? (Choose two.)
- A. EBGP connects peer devices in the same autonomous system.
- B. EBGP peers must be directly connected.
- C. EBGP peers can be connected over a multihop connection.
- D. EBGP connects peer devices in two different autonomous systems.
Answer: C,D
NEW QUESTION 44
Click the Exhibit button.
Referring to the exhibit, what do the asterisks (*) indicate?
- A. The router received the entries
- B. The entries are new
- C. The entries are stale
- D. The router originated the entries
Answer: D
NEW QUESTION 45
What are two reasons for configuring more than one VLAN on a switch? (Choose two.)
- A. A group of clients requires that security be applied to traffic entering or exiting the group's devices.
- B. A group of devices are connected to the same Layer 3 network.
- C. A group of devices must forward traffic across a WAN.
- D. A group of clients requires that the group's devices receive less broadcast traffic than they are currently receiving.
Answer: A,D
NEW QUESTION 46
......
Juniper JN0-349 Exam Topics:
| Section | Objectives |
|---|---|
| Spanning Tree | Describe the concepts, benefits, operation, or functionality of the Spanning Tree Protocol
Demonstrate knowledge how to configure, monitor, or troubleshoot Spanning Tree
|
| 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
|
| 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
|
| 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
|
| OSPF | Describe the concepts, operation or functionality of OSPF
Demonstrate knowledge how to configure, monitor or troubleshoot OSPF
|
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