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2021 Sep JN0-343 latest exam
Q241. Which BGP attribute can modify only an adjacent AS's optimal entry point into the local AS?
A. MED
B. local preference
C. AS path
D. community
Answer: A
Q242. Which two statements describe the behavior of Dynamic ARP Inspection? (Choose two.)
A. Dynamic ARP Inspection is disabled by default.
B. Dynamic ARP Inspection is enabled on individual ports.
C. Dynamic ARP Inspection is enabled by default.
D. Dynamic ARP Inspection is enabled on individual VLANs.
Answer: AD
Q243. Which two steps must be performed to carry out a unified ISSU on an EX Series Virtual Chassis? (Choose two.)
A. Enable GRES and NSR, then verify that the Routing Engines are synchronized.
B. Download the new software package and copy it to both Routing Engines before the upgrade.
C. Verify that the master and backup Routing Engines are running the same software version.
D. Shut down the backup Routing Engine before the upgrade.
Answer: AC
Q244. You are advertising your network's assigned prefixes to two upstream ISPs using BGP. You want incoming traffic to prefer ISP-A over ISP-B.
Which action would you take to accomplish this task?
A. Set a higher local preference on the prefixes you announce to ISP-A.
B. Using a routing policy, prepend your ASN information to the AS path attribute on prefixes you announce to ISP-B.
C. Using a routing policy, prepend your ASN information to the AS path attribute on prefixes you announce to ISP-A.
D. Set the MED value lower on prefixes you announce to ISP-A.
Answer: B
Q245. Which type of port must be an 802.1Q tagged port?
A. access
B. LAG
C. LACP
D. trunk
Answer: D
Most up-to-date JN0-343 dumps:
Q246. Which two statements are true regarding an RVI? (Choose two.)
A. An RVI must be in an EX Series switch to enable routing between VLAN segments.
B. An RVI does not require an IP address.
C. An RVI is a Layer 3 logical interface.
D. An RVI cannot coexist in an interface configuration if the switch performs Layer 2 operations.
Answer: AC
Q247. Which two statements about dynamic ARP inspection (DAI) are true? (Choose two.)
A. You enable DAI on each port.
B. Trunk ports are untrusted by default.
C. You can set individual ports as trusted by adding the dhcp-trusted parameter on a given port.
D. DAI depends on the entries found in the DHCP snooping database.
Answer: CD
Q248. What is the purpose of the forwarding routing instance type?
A. to create multiple Layer 3 switches
B. to create a virtual Layer 2 switch
C. to forward Layer 3 VPN traffic
D. to implement filter-based forwarding
Answer: D
Q249. Your ISP reports that you are being sent a route prefix but you cannot see it in your routing table.
Which two commands will help? (Choose two.)
A. show route advertising-protocol bgp
B. show route detail
C. show route protocol bgp hidden
D. show route receive-protocol bgp
Answer: CD
Q250. Referring to the exhibit, a packet destined to 172.129.3.5 is sent from ISP X towards R1.
Which statement describes how R1 handles the packet?
A. It sends ICMP network unreachable messages back to the source.
B. It forwards the packet towards Network A.
C. It silently drops the packet and does not send a message back to the source.
D. It forwards the packet towards Network C.
Answer: A