JN0-349無料問題集「Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT)」

質問 1

Which two statements about Layer 2 loop prevention protocols are correct? (Choose two.)

（A）RSTP distributes the current tree topology using the root bridge.

（B）RSTP can take 30 to 50 seconds to respond to a topology change.

（C）STP distributes the current tree topology using the root bridge.

（D）STP can take 30 to 50 seconds to respond to a topology change.

正解：A、D 解答を投票する

質問 2

Click the Exhibit button.

Referring to the exhibit, which port will be selected as the RSTP root port on Switch-4?

（A）ge-0/0/13.0

（B）ge-0/0/9.0

（C）ge-0/0/8.0

（D）ge-0/0/12.0

正解：D 解答を投票する

質問 3

The router ID is not configured.
How does OSPFv3 determine the router ID in this situation?

（A）OSPFv3 uses the IPv4 address of the first interface that comes up.

（B）OSPFv3 uses the IPv4 address of the last interface that comes up.

（C）OSPFv3 uses the IPv6 address of the first interface that comes up.

（D）OSPFv3 uses the IPv6 address of the last interface that comes up.

正解：A 解答を投票する

質問 4

Which two port security mechanisms rely on an accurate DHCP snooping database to operate correctly? (Choose two.)

（A）MACsec

（B）persistent MAC learning

（C）IP source guard

（D）dynamic ARP inspection

正解：C、D 解答を投票する

質問 5

Which two statements about Layer 2 firewall filters are correct? (Choose two.)

（A）You can apply only one firewall filter term per filter.

（B）You can apply multiple firewall filter terms per filter.

（C）You can apply only one input filter per VLAN.

（D）You can apply multiple input filters per VLAN.

正解：B、C 解答を投票する

質問 6

Click the Exhibit button.

Referring to the exhibit, which port on Switch-2 will be selected as the RSTP root port?

（A）ge-0/0/9.0

（B）ge-0/0/10.0

（C）ge-0/0/8.0

（D）ge-0/0/1.0

正解：B 解答を投票する

質問 7

Click the Exhibit button.

Referring to the exhibit, which statement is correct?

（A）The router is not able to establish an adjacency.

（B）The router is acting as the BDR.

（C）The router is acting as a DROther.

（D）The router is acting as the DR.

正解：C 解答を投票する

質問 8

You are troubleshooting OSPF issues on your device. You run a trace log and receive the error shown in the exhibit.

What would case this error?

（A）missing route policy

（B）MD5 authentication error

（C）subnet mismatch

（D）stub area mismatch

正解：D 解答を投票する

質問 9

Routet-1 and Router-2 must connect through the Internet using a tunneling technology. Hosts that are connected to Router-1 and Router-2 will be sending traffic up to 1500 bytes. The maximum segment size that is supported across the path is 1520 bytes.
Which tunneling technology will allow this communication to take place?

（A）GRE tunnel

（B）IPsec VPN transport mode

（C）IPsec VPN tunnel mode

（D）IP-IP tunnel

正解：D 解答を投票する

質問 10

What types of authentication are supported in Junos for OSPF?

（A）MD5 checksum

（B）Hitless key chain of MD5 keys/checksums

（C）All of the above

（D）Simple password

正解：C 解答を投票する

JN0-349 無料問題集「Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT)」

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