JN0-648 Pre-Exam Practice Tests | (Updated 90 Questions)
Valid JN0-648 Exam Q&A PDF - One Year Free Update
NEW QUESTION 44
Exhibit:
Referring to the exhibit, on which three IS-IS routers will the attached bit be set? (Choose three. )
- A. R6
- B. R2
- C. UR5
- D. R4
- E. UR3
Answer: A,B,E
NEW QUESTION 45
Exhibit:
You are configuring, the PVLAN feature on your switches. The PVLAN will span the two EX Series switches shown in the exhibit Which three configuration parameters must be enabled on the ports connecting the two switches? (Choose three. )
- A. family inet
- B. interface-mode access
- C. family Ethernet-switching
- D. interface-mode trunk
- E. inter-switch-link
Answer: C,D,E
NEW QUESTION 46
Click the Exhibit button.
Referring to the exhibit, which statement is true?
- A. Additional users will automatically be allowed to connect to ge-0/0/15
- B. The current device was allowed after authentication attempts to the RADIUS server failed
- C. The current device is authenticated using MAC RADIUS
- D. Only 802. 1X authentication will be used for devices connecting to ge-0/0/15
Answer: B
NEW QUESTION 47
When configuring class of services, what would be you use to allocate bandwidth to a forwarding class?
- A. buffer depth
- B. speed
- C. transmit rate
- D. bandwidth
Answer: C
NEW QUESTION 48
You will to route Layer 3 PVLAN traffic within the secondary VLAN.
What is required to accomplish this task?
- A. an isolated VLAN
- B. a community VIAN
- C. an IRB
- D. an FBF policy
Answer: C
NEW QUESTION 49
Exhibit:
Referring to the exhibit, which two statements are true? (Choose two )
- A. There is no need for a DR for the ge-0/0/0 interface.
- B. There can be more than one OSPF neighbor on the ge-0/0/0 interface
- C. There can be more than one OSPF neighbor on the ge-0/0/1 interface.
- D. The DR election process is not finished for the ge-0/0/0 interface
Answer: A,C
NEW QUESTION 50
Click the Exhibit button.
You are configuring BGP policies for a site with a dual-homed connection as shown in the exhibit. You must ensure that inbound traffic from Internet hosts flow through the ISP A connection.
Which statement is correct in this scenario?
- A. Apply a BGP export policy onR2to assign a lower origin value to routes advertised to ISP B
- B. Apply a BGP export policy on R1 to assign a higher local preference value to routes advertised to ISP A
- C. Apply a BGP export policy on R1 to assign a lower MED value to routes advertised to ISP A
- D. Apply a BGP export policy to R2 to prepend [65001 65001 65001 65001 65001] to the AS path of routes advertised to ISP B
Answer: D
NEW QUESTION 51
A BA classifier, input policer, and a multifield classifier are applied to an interface in which order are these features processed?
- A. multifield classifier -> BA classifier -> policer
- B. policer > multifield classifier -> BA classifier
- C. BA classifier -> multifield classifier -> policer
- D. policer -> BA classifier -> multifield classifier
Answer: D
NEW QUESTION 52
Which two statements about OSPF routing policies are correct? (Choose two.)
- A. By default, OSPF import policies reject network-summary LSAs.
- B. By default, OSPF export policies accept network-summary LSAs.
- C. By default, OSPF export policies reject network-summary LSAs.
- D. By default, OSPF import policies accept network-summary LSAs.
Answer: C,D
NEW QUESTION 53
Exhibit:
You are investigating reports of increased latency and discover that some routes cause customer traffic to traverse a route reflector instead of the optimal path.
Referring to the exhibit, which configuration statement would solve the problem?
- A. delete protocols bgp group BGP-MESH peer-as
- B. set policy-option, policy-statement NHS term BGP_ROUTES from external
- C. set protocols bgp group BGP-HESH import NHS
- D. delete protocol bop group BGP-MESH export NH3
Answer: B
NEW QUESTION 54
You are deploying IP phones in your Layer 2 network and are asked to ensure that the switch sends VLAN and CoS information to the IP phones automatically.
In this scenario, which protocol should be used?
- A. LLDP
- B. PoE
- C. PoE+
- D. LLDP_MED
Answer: D
NEW QUESTION 55
You are redistributing static routes into an OSPF area.
Which two statement are true is this scenario? (Choose two.)
- A. The area must be stub area.
- B. The routes can be advertised in type LSAs.
- C. The area must be the backbone area.
- D. The external route advertisements have a domain scope.
Answer: B,C
NEW QUESTION 56
Exhibit.
You are implementing CoS for a custom application that is labeling its packets with DSCP code-point 101111.
You have applied the configuration shown in the exhibit, but not that while some custom application traffic ingressin on ge-0/0/1 transits the SRX Series device successfully, packets ingressing all other ge-* interfaces are being dropped.
Which action should you take to solve this problem?
- A. Modify the BAclassifier to assign code point 101111 to loss priority low.
- B. Remove the BA classifier from all ge-interfaces.
- C. Apply the rate-limit-ef policer to all ge-interfaces.
- D. Configure a scheduler and scheduler map for expedited-forwarding and apply to all interfaces.
Answer: C
NEW QUESTION 57
You are implementing 802.1x access control in your network of EX Series switches. You have some older client devices connecting to your network which do not support 802.1x.
Which statement is true regarding the older devices?
- A. By default, the authenticator will send EAP messages and keep the port in an unauthorized state.
- B. By default, the supplicant will send EAP messages and keep the port in an unauthorized state.
- C. By default, the supplicant will send EAP messages until it reaches a predefined limit, after which it begins to forward traffic.
By default,the authenticator will send EAP messages until it reaches a predefined, after which it begins to forward traffic.
Answer: C
NEW QUESTION 58
Exhibit:
You have configured MSTP in your Layer 2 network. You are having problems with it establishing correctly.
Referring to the exhibit, what is causing the problem?
- A. The region name is not correct
- B. The MSTI-to-VLAN mapping does not match
- C. The revision number is the same on both devices
- D. You must assign a context ID number other than zero
Answer: B
NEW QUESTION 59
What is the correct authentication processing order on EX Series switches when multiple Layer 2 authentication methods are enabled?
- A. MAC RADIUS -> 802.1X -> captive portal
- B. 802.1X -> captive portal -> MAC RADIUS
- C. 802.1X -> MAC RADIUS -> captive portal
- D. captive portal -> MAC RADIUS -> 802.1X
Answer: C
NEW QUESTION 60
Exhibit.
Referring to the configuration shown in the exhibit, how many of the routes received from 10.0.0.2 will be active in the routing table?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 61
You have an IPv4 multicast network configured as PIM-SM.
What must be done before replacing your static RP with auto-RP?
- A. Configure auto-RP domains on each router in the network.
- B. Configure each router in the network as a candidate BSR.
- C. Enable sparse-dense mode on each of the routers in the network.
- D. Enable each router in the network to forward multicast packets.
Answer: C
NEW QUESTION 62
When configuring 802.1X authentication, what are three server fail fallback settings? (Choose three.)
- A. sustain
- B. permit
- C. count
- D. log
- E. move
Answer: A,B,E
NEW QUESTION 63
Exhibit.
You are adding VNI 101 to your EVPN-VXLAN network, but traffic is not being sent to received.
Referring to the exhibit, which configuration statement will solve the problem?
- A. set routing-instances EVPN1 bridge-domains BD-101 vxlan vni 101
- B. set routing-instances EVPN1 instance-type evpn
- C. set routing-instances EVPN1 vxlan encapsulate-inner-vlan
- D. set routing-instances EVPN1 vrf-table-label
Answer: A
NEW QUESTION 64
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