Juniper JN0-351 問題集

質問 1：
Which two statements are true about the default VLAN on Juniper switches? (Choose two.)
A. The default VLAN is set to a VLAN ID of 1 by default
B. The default VLAN ID is not assigned to any interface.
C. The default VLAN ID can be changed.
D. The default VLAN ID is not visible.
正解：A,C
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Which two statements about redundant trunk groups on EX Series switches are correct? (Choose two.)
A. Redundant trunk groups use spanning tree to provide loop-free redundant uplinks.
B. If the active link fails, then the secondary link automatically takes over.
C. Redundant trunk groups load balance traffic across two designated uplink interfaces.
D. Layer 2 control traffic is permitted on the secondary link.
正解：B,D
解説: (Topexam メンバーにのみ表示されます)

質問 3：
What is the maximum allowable MTU size for a default GRE tunnel without IPv4 traffic fragmentation?
A. 1496 bytes
B. 1480 bytes
C. 1500 bytes
D. 1476 bytes
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Exhibit

Your BGP neighbors, one in the USA and one in France, are not establishing a connection with each other.
Referring to the exhibit, which statement is correct?
A. The BFD liveness is set too high.
B. The BFD liveness is set too low.
C. The BFD liveness must be configured on the BGP group.
D. The BFD liveness must be configured on the BGP neighbor.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
You deployed a new EX Series switch with DHCP snooping enabled and you do not see any entries in the snooping databases for an interface. Which two Juniper configurations for that interface caused this issue?
(Choose two.)
A. The interface is configured as a disabled port.
B. Dynamic ARP inspection is enabled on the interface.
C. The interface is configured as a trunk port.
D. MAC limiting is enabled on the interface.
正解：A,C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Exhibit

Which command displays the output shown in the exhibit?
A. show route forwarding-table family ethernet-switching
B. show route forwarding-table
C. show ethernet-switching table extensive
D. show ethernet-switching table
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 7：
What are two characteristics of RSTP alternate ports? (Choose two.)
A. RSTP alternate ports provide an alternate lower cost path to the root bridge.
B. RSTP alternate ports block traffic while receiving superior BPDUs from a neighboring switch.
C. RSTP alternate ports provide an alternate higher cost path to the root bridge.
D. RSTP alternate ports are active ports used to forward frames toward the root bridge.
正解：B,C
解説: (Topexam メンバーにのみ表示されます)