Juniper JN0-281 問題集

質問 1：
What is the primary difference between IBGP and EBGP?
A. The administrative distance
B. The use of AS_PATH attribute
C. The requirement for a full mesh topology
D. The way they advertise routes
正解：A

質問 2：
Which statement about switches is correct?
A. Every port is in a unique collision domain.
B. Each port is a member of VLAN 2 by default.
C. Each port is in a unique broadcast domain by default.
D. All ports reside in the same collision domain.
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 3：
Referring to the exhibit, why are the BGP routes hidden?
A. The BGP next hop is unreachable.
B. There are too many hops to the destination.
C. Other routes are selected because of better metrics.
D. Load balancing is not enabled.
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Which of the following are features of storm control on Junos switches? (Choose two)
A. It encrypts broadcast and multicast traffic.
B. It automatically reroutes traffic during a storm.
C. It supports thresholds for broadcast, multicast, and unknown unicast traffic.
D. It can be configured to shut down a port during a storm.
正解：C,D

質問 5：
A routing policy has been created to advertise OSPF routes in BGP. Which statement is correct in this scenario?
A. Apply the policy as an export policy within OSPF.
B. Apply the policy as an export policy within BGP.
C. Apply the policy as an import policy within BGP.
D. Apply the policy as an import policy within OSPF.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Which of the following are true regarding port modes in a VLAN setup? (Choose two)
A. An access port carries traffic only for a single VLAN.
B. A trunk port is used exclusively for inter-switch links.
C. A trunk port can carry traffic for multiple VLANs.
D. An access port can carry traffic for multiple VLANs.
正解：A,C

質問 7：
What does MACsec stand for?
A. Media Access Control Sublayer Encryption
B. Media Access Control Security
C. MAC Sublayer Encryption
D. MAC Security
正解：B

質問 8：
Which statement is correct about an IP fabric?
A. Transit traffic is passed through the network based on the original frame's destination MAC address.
B. The entire IP fabric is one large broadcast domain.
C. Load sharing is provided by the routing protocol used.
D. Loop prevention is provided by the underlying spanning tree protocol used.
正解：C

質問 9：
When troubleshooting an OSPF neighborship, you notice that the router stopped at the ExStart state. What is the cause of this result?
A. There is an interval timing mismatch.
B. There is an MTU mismatch.
C. The priority is set to 255.
D. There is an area ID mismatch.
正解：B
解説: (Topexam メンバーにのみ表示されます)