Juniper JN0-647 問題集

質問 1：
Which protocol is a multicast routing protocol?
A. PIM
B. BGP
C. IS-IS
D. OSPF
正解：A

質問 2：
Click the Exhibit.

You have three switches, each with a trunk connection allowing all VLANs to the switches. CIST will coverage, however MSTP will not.
Referring to the exhibit, which statement is correct?
A. Switch3's configuration digest is different than for switch1 and for switch2.
B. Switch1 is the CIST root bridge.
C. Switch3's contest identifier must be changed.
D. Switch2 is the MSTI root bridge.
正解：A

質問 3：
Computers on the network are assigned IP addresses from DHCP server based on the MAC address of the computer. The network administrator wants computes assigned to a VLAN using the computer's IP addresses, regardless of where the computers are plugged into the network.
In this scenario, which two statements are true? (Choose two.)
A. DHCP snooping can be enabled to determine with which VLAN a device should be associated when it receives an IP address.
B. 802.1X authentication can query the DHCP server to identify the VLAN that a device should be assigned.
C. The MAC RADIUS feature can query a RADIUS server to dynamically assign a VLAN to a host based on its MAC address.
D. 802.1X authentication can assign a VLAN to a device based on the user that is logged into the device.
正解：C,D

質問 4：
Click the Exhibit.

You are adding a Junos Fusion satellite device but one cascade port is not coming on line.
Referring to the exhibit, what would cause this problem?
A. The satellite device is not an EX4300.
B. The FPC number must match the FPC connecting to the satellite device.
C. Interface xe-8/2/1 is in a link down state.
D. The cascade ports need to be on the same line card.
正解：C

質問 5：
Click the Exhibit.


The ping command shows that connectivity of the 200.0.1/24 network to the 200.0.200.0/24 network exists.
You notice that all the ping test results from various devices on 200.0.1.0/24 follow the same path even through equal cost paths exist to the 200.0.200.0/24 network.
Referring to the exhibit, what is happening?
A. Load balancing needs to be enabled for equal cost pathing to work.
B. RIPv2 does not support load balancing static routes.
C. The rip-exp policy needs to be modified to advertise RIP routes
D. The RIP group must include the preference statement.
正解：A

質問 6：
Which protocol is used for port-level access control and authentication?
A. IPsec
B. MD5
C. AES
D. 802.1X
正解：D

質問 7：
Click the Exhibit.

Router1, in peer AS 65001, advertises routes to R2 using EBGP. R2 advertises the routes learned from R1 to R3 using IBGP. R3 is configured as a route reflector with routers R6 and R7 as clients.
Referring to the exhibit, to which routers will R3 advertise the BGP routes received from R2?
A. R2, R4, R5, R6, R7
B. R4, R5
C. R4, R5, R6, R7
D. R6, R7
正解：C

質問 8：
You are asked to merge a RIP network with your OSPF network. As a first step, you establish connectivity between the RIP network and the OSPF network. The RIP network connects to an NSSA area.
Which two statements are true in this scenario? (Choose two.)
A. By default, external OSPF routes have a higher route preference than RIP routes.
B. To share RIP routes with the OSPF network, an export policy will be required on the ABR.
C. By default, RIP routes have a higher route preference than external OSPF routes.
D. To share RIP routes with the OSPF network, an export policy will be required on the ASBR.
正解：C,D