JN0-400 Exam
EX, Associate (JNCIA-EX)
- Exam Number/Code : JN0-400
- Exam Name : EX, Associate (JNCIA-EX)
- Questions and Answers : 104 Q&As
- Update Time: 2011-09-21
- Price:
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Juniper Networks JNCIA JN0-400 exam braindumps questions and answers
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Exam : Juniper JN0-400
Title : EX, Associate (JNCIA-EX)
1. Which statement regarding packet flow through an EX-series switch is correct?
A.Transit packets are processed by the Routing Engine.
B.The destination MAC address determines which lookup table is used.
C.The Routing Engine is consulted when processing both transit and host packets.
D.Routing protocol control packets are processed only by the Packet Forwarding Engine.
Answer: B
2. Click the Exhibit button.
Why will the configurations in the exhibit fail to provide gateway redundancy between Switch-1 and Switch-2?
3 Switch-1:
interfaces {
ge-0/0/3 {
unit 0 {
family inet {
address 10.1.1.2/24 {
vrrp-group 100 {
virtual-address 10.1.1.1;
priority 110;
}
}
}
}
}
}
Switch-2:
interfaces {
vlan {
unit 100 {
family inet {
address 10.1.1.3/24 {
vrrp-group 200 {
virtual-address 10.1.1.1;
priority 90;
}
}
}
}
}
A.The IP addresses do not match.
B.The group numbers do not match.
C.The priority numbers do not match.
D.VRRP is not supported between a physical interface and a VLAN interface.
Answer: B
3. Which three functions are performed in the control plane? (Choose three.)
A.protocol updates
B.packet forwarding
C.system management
D.service implementation
E.forwarding table maintenance
Answer: ACE
4. Which two statements describe the EX 4200 switches? (Choose two.)
A.The fan tray used for the EX 4200 switches is not field replaceable.
B.The EX 4200 switches can be interconnected to form a single virtual chassis.
C.The EX 4200 switches support redundant load-sharing AC power supplies.
D.All EX 4200 switches support either partial or full Power over Ethernet (PoE) support.
Answer: BC
5. Click the Exhibit button.
Given the configuration in the exhibit, which command would configure the IP address 10.10.10.1/24 for VLAN 2?
3 interfaces {
ge-0/0/0 {
unit 0 {
family ethernet-switching {
vlan {
members v2;
}
}
}
}
ge-0/0/1 {
unit 0 {
family ethernet-switching;
}
}
}
vlans {
v2 {
vlan-id 2;
interface {
ge-0/0/1.0;
}
l3-interface vlan.2;
}
}
A.set vlans v2 family inet address 10.10.10.1/24
B.set interfaces vlan v2 family inet address 10.10.10.1/24
C.set interfaces vlan unit 2 family inet address 10.10.10.1/24
D.set interfaces ge-0/0/1 unit 0 family inet address 10.10.10.1/24
Answer: C
6. What are two components of the JUNOS software architecture? (Choose two.)
A.multiple software processes
B.separation of control and forwarding planes
C.shared memory environment for all processes
D.efficient processing of all packets through the control plane
Answer: AB
7. On an EX-series switch, what information is gathered when building a bridge table? (Choose two.)
A.interface
B.IP address
C.MAC address
D.authentication information
Answer: AC
8. Which two are included in the EZsetup configuration for EX-series switches? (Choose two.)
A.Configure syslog servers.
B.Configure routing protocols.
C.Configure root authentication.
D.Configure me0 management Ethernet port.
Answer: CD
9. You are configuring the voice VLAN feature on an EX-series switch on interface ge-0/0/5.
Which configuration would you use?
A.ethernet-switching-options { voice-vlan { interface ge-0/0/5.0 { vlan voice-over-ip; forwarding-class expedited-forwarding; } }}
B.ethernet-switching-options { voip { interface ge-0/0/5.0 { member-vlan voice-over-ip; forwarding-class expedited-forwarding; } }}
C.ethernet-switching-options { voip { interface ge-0/0/5.0 { vlan voice-over-ip; forwarding-class expedited-forwarding; } }}
D.ethernet-switching-options { voice-vlan { interface ge-0/0/5.0 { member-vlan voice-over-ip; forwarding-class expedited-forwarding; } }}
Answer: C
10. What are two features of JUNOS software? (Choose two.)
A.JUNOS facilitates separate control and forwarding planes.
B.All processes use shared memory to make efficient use of available resources.
C.The functionality of JUNOS is made possible through multiple processes that are dependant on each other.
D.All processes run in their own protected memory space to prevent against complete system failure when a single process fails.
Answer: AD
11. Which two statements describe the EX 3200 switches? (Choose two.)
A.The single-blower fan tray used for the EX 3200 switches is field replaceable.
B.The EX 3200 switches can be interconnected to form a single virtual chassis.
C.The redundant AC power supply units on the EX 3200 switches are hot swappable and load sharing.
D.The EX 3200 switches support either 4-port 1-Gigabit Ethernet or 2-port 10-Gigabit Ethernet uplink modules.
Answer: AD
12. Which two major components make up the control and forwarding planes for an EX-series switch? (Choose two.)
A.Routing Engine
B.Switching Engine
C.Switching Fabric Module
D.Packet Forwarding Engine
Answer: AD
13. Within a virtual chassis, which type of switch maintains the forwarding table?
A.line card
B.master switch
C.routing switch
D.forwarding switch
Answer: B
14. Which two statements regarding packet flow through an EX-series switch are correct? (Choose two.)
A.Transit packets are processed by the Routing Engine.
B.The destination MAC address determines which lookup table is used.
C.If the egress port belongs to the ingress Packet Forwarding Engine, the packet is switched locally.
D.If the egress port belongs to a remote Packet Forwarding Engine, the Routing Engine is consulted prior to forwarding the packet.
Answer: BC
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