[2024年04月]に更新されたJNCIP-ENT JN0-649試験練習問題集お試しセット [Q10-Q31]

[2024年04月]に更新されたJNCIP-ENT JN0-649試験練習問題集お試しセット

2024年最新のJN0-649プレミアム資料テストPDF無料問題集お試しセット

質問 # 10
Which address range is used for source-specific multicast?

A. 232.0.0.0/8
B. 224.2.0.0/16
C. 233.0.0.0/8
D. 239.0.0.0/8

正解：A

質問 # 11
Your enterprise network uses routing instances to support multitenancy. Your Junos devices use BGP to peer to multiple BGP devices. You must ensure that load balancing is achieved within the routing instance.
Which two statements would accomplish this task? (Choose two.)

A. Configure a load-balance per-packet policy and apply it at the [edit routing-options forwarding- table] hierarchy.
B. Configure the multipath option at the [edit protocols bgp group] hierarchy.
C. Configure the multipath option at the [edit routing-instances <instance-name> routing-options] hierarchy.
D. Configure the multipath option at the [edit protocols bgp group <group-name> neighbor] hierarchy.

正解：B、C

質問 # 12
Referring to the exhibit, you configured a new multicast classifier for the ge-1/2/0 interface ICMP traffic to the best-effort queue and traffic from 190.168.20.0/24 to the expedited forwarding queue.
You received noticed that some application are not working after the change.
Which configuration change will remedy the problem?

A. [edit firewall family inet filter ingress
User@host # set term 3 then next
B. [edit firewall family inet filter ingress
User@host # set term 2 from protocol tcp
C. [edit firewall family inet filter ingress
User@host # set term 3 then accept
D. [edit firewall family inet filter ingress
User@host # set term 2 from service-filter hit

正解：C

質問 # 13
Your organization has recently acquired another company. You must carry all of the company's existing VLANs across the corporate backbone to the existing branch locations without changing addressing and with minimal configuration.
Which technology will accomplish this task?

A. PVLAN isolated VLAN
B. EVPN-VXLAN anycast gateway
C. Q-in-Q all-in-one bundling
D. MVRP registration normal

正解：C

質問 # 14
Which BGP message type contains NLRI information?

A. notification
B. keepalive
C. open
D. update

正解：D

質問 # 15
Referring to the exhibit, which two statements are correct? (Choose two.)

A. The BGP neighbor cannot advertise L3 VPN related routes.
B. The BGP neighbor can advertise L3 VPN related routes.
C. The BGP neighbor cannot advertise EVPN related routes.
D. The BGP neighbor can advertise EVPN related routes.

正解：B、D

質問 # 16
Referring to the exhibit, which statement is correct when a failure exists on the link between host2 and switch5 on this EVPN-VXLAN fabric?

A. The switch5 device will send a Type 4 route to all peers.
B. The switch5 device will send a Type 1 route to all peers.
C. The switch5 device will send a Type 2 route to all peers.
D. The switch5 device will send a Type 3 route to all peers.

正解：D

質問 # 17
Which two statements are correct about the deployment of EVPN-VXLAN on QFX Series devices? (Choose two.)

A. Junos OS supports ingress replication for BUM traffic forwarding.
B. Type 1 route advertisements always have the single-active flag set to 1.
C. Junos OS supports underlay replication for BUM traffic forwarding.
D. Type 1 route advertisements always have the single-active flag set to 0.

正解：A、C

質問 # 18
You are asked to enforce user authentication using a captive portal before users access the corporate network.
Which statement is correct in this scenario?

A. All Web browser requests are redirected to the captive portal until authentication is successful.
B. HTTPS is the default protocol for a captive portal.
C. When enabled, a captive portal must be applied to each individual interface.
D. A captive portal can be bypassed using an allowlist command containing a device's IP address.

正解：A

質問 # 19
Which two authentication methods are available for OSPF on Juniper devices? (Choose two.)

A. MD5 authentication
B. Certificate
C. RSA
D. none

正解：A、D

質問 # 20
Your enterprise network is running BGP VPNs to support multitenancy. Some of the devices with which you peer BGP do not support the VPN NLRI. You must ensure that you do not send BGP VPN routes to the remote peer.
Which two configuration steps will satisfy this requirement? (Choose two.)

A. Configure a route reflector for the VPN NLRI.
B. Configure an import policy on the remote peer to reject the routes when they are received.
C. Configure the apply-vpn-export feature on the local BGP peer.
D. Configure an export policy on the local BGP peer to reject the VPN routes being sent to the remote peer.

正解：C、D

質問 # 21
What are two similarities between OSPFv2 and OSPFv3? (Choose two.)

A. 32-bit router ID
B. support for multiple instances per link
C. virtual links
D. protocol processing per link, not per subnet

正解：A、C

質問 # 22
What is the correct authentication processing order on EX Series switches when multiple Layer 2 authentication methods are enabled?

A. 802.1x -> MAC RADIUS -> captive portal
B. 802.1x-> captive portal -> MAC RADIUS
C. MAC RADIUS -> 1x -> captive portal
D. captive portal-> MAC RADIUS -> 802.1x

正解：A

質問 # 23
Your IPv4 multicast network uses different MX Series routers for the source DR and the PIM sparse-mode RP.
What is required before PIM register messages are exchanged between the DR and RP routers?

A. Enable tunnel services on the DR and RP routers.
B. Add an adaptive services PIC to the DR router.
C. Add a tunnel services PIC to the RP router.
D. Configure PIM encapsulation on the DR and RP routers.

正解：A

質問 # 24
Which two statements are correct about the deployment of EVPN-VXLAN on QFX Series devices? (Choose two.)

A. Junos OS supports ingress replication for BUM traffic forwarding.
B. Junos OS supports underlay replication for BUM traffic forwarding.
C. Type 1 route advertisements always have the single-active flag set to 1.
D. Type 1 route advertisements always have the single-active flag set to 0.

正解：A、D

解説：
BUM Traffic Forwarding
Junos devices that use MPLS encapsulation for EVPNs can only use ingress replication at this time.
Ingress replication means, to flood traffic to remote PE routers, the traffic has to be replicated, once for each remote PE router.
The EVPN label for this BUM traffic is learned per PE router from the route type 3, inclusive multicast Ethernet tag route.
This table shows the format of the inclusive multicast Ethernet tag route.
All-Active Redundancy (4)
This diagram shows the format of the type 1 route, A-D route per ES. The split horizon label is advertised as part of an extended community attached to the type 1 route. The split horizon label is also called the ESI label. The extended community also indicates what type of redundancy mode is used for this given ESI: single-active represented by binary 1 or active-active represented by binary 0.

質問 # 25
Referring to the exhibit, which two statements are correct? (Choose two.)

A. PoE is not enabled on the ge-0/0/0 interface.
B. If the total power consumption exceeds 90 watts, the ge-0/0/11 interface will continue to receive power.
C. The maximum wattage that this switch can allocate to attached Ethernet devices is 100 watts.
D. The ge-0/0/10 interface supports PoE+.

正解：C、D

解説：
POE is enabled in the interface ge-0/0/0 but nothing is connected to it. switch is in AT mode (poe+) and interface ge-0/0/11 supports poe+ judging by maximun wattage

質問 # 26
Which two port modes are associated with STP? (Choose two.)

A. root
B. backup port
C. alternate port
D. designated

正解：A、D

質問 # 27
Which two statements are true about IS-IS levels? (Choose two.)

A. Level 1 system only from adjacencies with other systems that have different area IDs.
B. Level 2 systems do not advertise Level 2 routes into a Level area by default.
C. Level 2 systems must use the loopback address as a part of the ISO network address.
D. Level 1 systems use a default route to reach AS external routes located in other areas.

正解：D

質問 # 28
Referring to the exhibit, ServerA sends a single IP packet destined to 10.0.0.127. Which two statements correctly describe the behavior of the resulting outbound VXLAN packets that contain the original packet destined to 10.0.0.127? (Choose two.)

A. Router E will replicate and send a copy of the received VXLAN packet to router D.
B. Router C will send a VXLAN packet destined only to router D and router E.
C. Router D will not replicate and send a copy of the received VXLAN packet to router E.
D. Router C will send a single VXLAN packet to one remote VTEP.

正解：A、D

質問 # 29
There are two BGP routes to 10.200.200.0/24 received from two external peers. Route 1 comes from a neighbor with a router ID of 10.10.100.1 and a peer IP address of 10.10.30.1, and route 2 comes from a neighbor with a router ID of 10.10.200.1 and a peer IP address of 10.10.50.1. Both routes have the same MED value, origin value, AS path length, and local preference number.
In this scenario, which statement is correct about the active route?

A. Route 2 will be active because of the router ID.
B. Route 1 will be active because of the router ID.
C. Route 1 will be active because of the peer IP address.
D. Route 2 will be active because of the peer IP address.

正解：B

解説：
The router determines the router ID for each peer that advertised a path to the route destination. A lower router ID value is preferred over a higher router ID value. 10. The router determines the peer ID for each peer that advertised a path to the router destination. A lower peer ID value is preferred over a higher peer ID value. The peer ID is the IP address of the established BGP peering session.

質問 # 30
Referring to the exhibit, which TTL value will be sent to the LLDP neighbors?