[2023年04月]更新のJN0-349試験資料Juniper学習ガイド [Q52-Q75]

[2023年04月]更新のJN0-349試験資料Juniper学習ガイド

有効な問題最新版を試そうJN0-349テスト解釈JN0-349有効な試験ガイド

Juniper Networksは、企業、サービスプロバイダー、クラウドプロバイダー向けのネットワークソリューションの主要な提供業者です。JNCIS-ENT認定は、業界で高く評価され、ネットワーク分野でのキャリアアップに役立ちます。また、JNCIP-ENTやJNCIE-ENTなど、より高いレベルのJuniperの認定の前提条件となっています。

質問 # 52
What are two characteristics of IS-IS CSNPs? (Choose two.)

A. IS-IS CSNPs contain header information for specific requested link-state PDUs.
B. IS-IS CSNPs are used to maintain the link-state database synchronization.
C. IS-IS CSNPs contain header information for all link-state PDUs.
D. IS-IS CSNPs are used to request a copy of a missing link state PDU.

正解：B、C

質問 # 53
Click the Exhibit button.

Referring to the exhibit, the local router should have an IS-IS adjacency with a neighboring router, but the adjacency never establishes correctly.
What should you do to solve the problem?

A. Disable level 2 for the interfaces.
B. Disable wide metrics.
C. Change the local IS-IS area ID to 49.0002.
D. Disable level 1 for the interfaces.

正解：C

質問 # 54
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. The next hop cannot be resolved.
C. It is an L3VPN route.
D. It has an invalid community.

正解：B

質問 # 55
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. Show Ethernet-switching table vlan-id 10
B. Monitor interface ge-0/01
C. Show interfaces ge-0/01 detail
D. Show vlans 10

正解：A

質問 # 56
What are two benefits of 802.3ad link aggregation? (Choose two)

A. It creates physical layer redundancy.
B. It ensures symmetrical paths
C. It increases bandwidth
D. It simplifies interface configuration.

正解：A、C

解説：
Aggregating multiple links between physical interfaces creates a single logical point-to-point trunk
link or a LAG. The LAG balances traffic across the member links within an aggregated Ethernet
bundle and effectively increases the uplink bandwidth. Another advantage of link aggregation is
increased availability, because the LAG is composed of multiple member links. If one member
link fails, the LAG continues to carry traffic over the remaining links.
https://www.juniper.net/documentation/us/en/software/junos/interfaces-ethernet-
switches/topics/topic-map/switches-interface-aggregated.html

質問 # 57
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 all switch ports connecting to the host devices as trunk ports associated with all VLANS.
B. Configure all switch ports connecting to the host devices as access ports associated with a common VLAN.
C. Configure an IRB interface for each VLAN and associate it with its corresponding VLAN
D. Configure a port-based ACL that permits inter-VLAN routing for all configured VLANs.

正解：B

質問 # 58
An EBGP session sources its TCP connection from which IP address?

A. The IP address of the primary address assigned to the loopback interface.
B. The IP address of the interface that connects the two BGP speakers.
C. The IP address of the preferred address assigned to the loopback interface.
D. The IP address assigned as the router ID.

正解：B

質問 # 59
Referring to the exhibit, which interface is assigned the active VIP?

A. Router B ge-0/0/2
B. Router A ge-0/0/1
C. Router A ge-0/0/2
D. Router B ge-0/0/1

正解：D

質問 # 60
Based on the traceoptions output shown in the exhibit, what is the problem with the adjacency?

A. MTU mismatch
B. area mismatch
C. connectivity
D. authentication mismatch

正解：B

質問 # 61
Click the Exhibit button.

Based on the output shown in the exhibit, which statement is correct?

A. The ge-0/0/15 interface is using the default port cost
B. This switch has a bridge priority of 32k
C. The ge-0/0/9 interface is using the default priority value
D. This switch has been elected as the root bridge

正解：D

質問 # 62
Which statement is true about IP-IP tunnels?

A. Intermediate devices must have a route to the destination address of the traffic being tunneled.
B. Intermediate devices must have a route to the tunnel source address but do not require a route to the tunnel destination address
C. Intermediate devices must have a route to both the tunnel source address and the tunnel
destination address.
D. Intermediate devices must have a route to the tunnel destination address but do not require a
route to the tunnel source address.

正解：C

解説：
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.

質問 # 63
Click the Exhibit button.

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 have 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 a loop-prevention mechanism or protocol.
B. A malformed route-based ACL improperly filtering traffic flows.
C. A misconfigured interior gateway protocol (IGP).
D. A lack of port-based ACLs filtering the traffic flows.

正解：A

質問 # 64
Click the Exhibit button.

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

正解：C、D

質問 # 65
You are concerned that someone from outside the company could use an open conference room port to access the network.
Which feature should you use to address this concern?

A. MAC limiting
B. persistent MAC learning
C. 802.1X
D. DHCP snooping

正解：C

質問 # 66
You are enabling dynamic ARP inspection on an EX4300 switch.
Which service is enabled by default in this scenario?

A. MAC limiting
B. DHCP snooping
C. persistent MAC learning
D. IP Source Guard

正解：B

質問 # 67
Which two statements about Martian addresses are correct? (Choose two.)

A. Martian addresses can only be applied to the inet.0 routing table.
B. Martian addresses require a route prefix match type.
C. Martian addresses are not installed in the routing table by default.
D. Martian addresses are installed in the routing table by default.

正解：B、C

質問 # 68
What are three requirements to ensure proper GRE or IP-IP tunnel routing? (Choose three.)

A. Keepalives must be used on stateless tunneling protocols.
B. Tunnel endpoints must have a valid route to the remote endpoint.
C. All intermediary devices must have a route to the tunnel endpoints.
D. Tunnel endpoints must have a route that directs traffic into the tunnel.
E. BGP must be used on intermediate devices.

正解：B、D、E

質問 # 69
Referring to the exhibit, which policy will export routes to IBGP peers?

A. static.c-2
B. staric-4
C. scatic-2
D. static-1

正解：B

質問 # 70
Referring to the exhibit, all users connected to the same VLAN can communicate with each other,
but not with users on other VLANs in this network.
What must be configured to enable communication between the VLANs?

A. A separate routing device is required to forward traffic between the configured VLANs.
B. A logical IRB interface must be created and assigned to each VLAN.
C. The switch ports to which the users are connected should be configured as trunk ports.
D. A single logical IRB interface must be created and assigned to all three VLANs

正解：B

質問 # 71
Click the Exhibit button.

. What is the problem?

A. Aggregated interface must be defined under the chassis stanza.
B. The LAG member interfaces are configured across different line cards.
C. LAG requires more than two member links.
D. LACP is required for LAG to work.

正解：A

解説：
Explanation
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/switches-interface-aggregated.html By default, no aggregated Ethernet interfaces are created. You must set the number of aggregated Ethernet interfaces on the routing device before you can configure them. Specify that you want to access the aggregated Ethernet configuration on the device. user@host# edit chassis aggregated-devices ethernet Set the number of aggregated Ethernet interfaces. [edit chassis aggregated-devices ethernet] user@host# set device-count number

質問 # 72
Click the Exhibit button.

Your company has connections to two ISPs. Each ISP is in a separate routing instance. You need to advertise the 0.0.0.0/0 prefix from both ISPs to all your devices.
Referring to the exhibit, which statement is true in this scenario?

A. You must create a RIB group to share interface routes.
B. You must create a policy to allow traffic from your network to each ISP.
C. You must create and apply match input filters on interfaces ge-0/0/2 and ge-0/0/3.
D. You must create an internal routing instance for your network.

正解：A

質問 # 73
Click the Exhibit button.

You are responsible for managing a Layer 2 network using RSTP for loop prevention. You recently committed the configurations shown in the exhibit. Unfortunately, Switch-2 became the root bridge and you must ensure that Switch-1 becomes the root bridge, when available, for this RSTP topology.
Referring to the exhibit, which configuration change should be performed?

A. Configure the ge-0/0/1 and ge-0/0/8 interfaces on Switch-1 to have a priority of 255.
B. Configure the system MAC on Switch-1 to be higher than the other two switches.
C. Configure the ge-0/0/1 and ge-0/0/8 interfaces on Switch-1 to have a cost of 0.
D. Configure the bridge-priority on Switch-1 as 4k.

正解：C

質問 # 74
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. Switch-2 will become the root bridge for a separate RSTP topology.
B. Switch-2's ge0/0/2 port role and state will remain as designated and forwarding.
C. Swicth-2's ge0/0/2 port role and state will transition to root and forwarding.
D. Switch-2 will remove itself from the RSTP topology.

正解：C

質問 # 75
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JN0-349試験問題と解答：https://jp.fast2test.com/JN0-349-premium-file.html

JN0-349実際の問題解答PDFは100%カバー率でリアル試験問題：https://drive.google.com/open?id=1HOD-QqodUqtzzmaMFwkAsqlaLZaUCdmq