Juniper JN0-647 問題集

質問 1：
Which two statements are correct about using LLDP on junos devices? (Choose two.)
A. LLDP can interoperate with the cisco discovery protocol CDP
B. LLDP operates on layer 2 interfaces
C. LLDP operates on layer 2 and layer 3 interfaces
D. LLDP is enabled on all devices by default
正解：C,D

質問 2：
You manage your company enterprises network using EX series switches. Your company wants to use Q in Q tunneling to connect remote customer sites together. Which statement is correct about the scenario?
A. Customer traffic is tunneled through the network using the C VLAN ID
B. You must enable L2PT to tunnel layer 2 protocol traffic
C. The default Ethernet value is 0x9100
D. The outside layer 2 frame is popped by the penultimate switch
正解：B

質問 3：
Click the Exhibit.

Switch 4 is rebooted as shown in the exhibit.
Which statement is correct in this scenario?
A. MSTI-1 is reconverged.
B. MSTI-2 is reconverged.
C. CIST is reconverged.
D. CIST generates notification events.
正解：A

質問 4：
Click the Exhibit.


You have deployed the access control configuration to the distribution switch.
Referring to the exhibit, which statement is true?
A. All hosts connected to the access switch will have access to the network without authentication.
B. Only the first host to authenticate will have access to the network, other hosts will be blocked.
C. All hosts connected to the access switch will have access to the network after one host authenticates.
D. All hosts connected to the access switch require authentication to access the network.
正解：C

質問 5：
Which three databases are used by the Dijkstra algorithm? (Choose three.)
A. Configuration database
B. Candidate database
C. MAC database
D. Link State Database
E. Tree database
正解：B,D,E

質問 6：
Which two statements is true regarding the next hop attribute? (Choose two.)
A. it is not changed when sent across EBGP sessions
B. it is not changed for IGBP routes learned from EBGP
C. it is changed to self for IBGP routes learned from EBGP
D. it is Changed by default when sent across EBGP sessions
正解：B,D

質問 7：
Click the Exhibit.

You have deployed Sparse Mode multicast in your network using the IGP metrics shown in the exhibit.
Which path will (*, G) traffic follow form the source to the receiver before the (S, G) state is registered?
A. Source, R1, R2, R5, R2, R3, R6 Receiver
B. Source, R1, R2, R5, R6, Receiver
C. Source, R1, R2, R3, R6, Receiver
D. Source, R1, R4, R5, R6, Receiver
正解：A

質問 8：
Click the Exhibit.

A customer is concerned that the route damping policy on routes with prefixes greater than/17 is allowing too many flaps to occur. The customer does not want to change the default timer.
Referring to the exhibit, which two actions would allow fewer flaps per route? (Choose two.)
A. Increase the half-life parameter to 45.
B. Decrease the suppress parameter to 2000.
C. Decrease the half-life parameter to 15.
D. Increase the suppress parameter to 3500.
正解：A,D