JN0-400 Real Exam Questions (Part 1)
Note: Highlight for Answers
1: Within a virtual chassis, which type of switch maintains the forwarding table?
A.line card
B.master switch
C.routing switch
D.forwarding switch
Correct Answers: B
2: Which built-in security mechanism in the Link Layer Discovery Protocol (LLDP) can be used to encrypt advertisements?
A.There is no encryption in LLDP.
B.A plain-text password can be used.
C.MD5 hashing of the password can be used.
D.SHA-1 hashing of the password can be used.
Correct Answers: A
3: What are three key features of virtual chassis? (Choose three.)
A.dedicated active and standby switch fabrics
B.dedicated master and backup routing engines
C.ability to configure vcp-0 and vcp-1 interfaces to run at various speeds
D.ability to upgrade all members of a virtual chassis from the master switch
E.ability to interconnect members of a virtual chassis using the 10-Gigabit Ethernet uplink ports
Correct Answers: B D E
4: Which two actions are available when configuring the MAC limiting feature? (Choose two.)
A.Drop the traffic.
B.Change the forwarding-class of the traffic.
C.Redirect the traffic with changed loss-priority.
D.Shut down the interface so traffic will be blocked.
Correct Answers: A D
5: 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;
}
Correct Answers: C
6: You want to configure a static default route to the gateway 10.1.1.1. Which set command will accomplish this task?
A.set routes static route 0.0.0.0/0 gateway 10.1.1.1
B.set protocols static route 0.0.0.0/0 next-hop 10.1.1.1
C.set family inet static route 0.0.0.0/0 next-hop 10.1.1.1
D.set routing-options static route 0.0.0.0/0 next-hop 10.1.1.1
Correct Answers: D
7: Which three are included in the factory-default configuration? (Choose three.)
A.RSTP
B.LLDP
C.SNMP
D.user authentication
E.family ethernet-switching for all ports
Correct Answers: A B E
8: Which directory contains the rollback 4 configuration?
A./config
B./var/config
C./var/db/rollback
D./config/db/config
Correct Answers: D
9: Which statement describes a benefit of Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED)?
A.Allows an LLDP-MED-enabled switch to deliver VLAN and Class of Service (CoS) settings to a neighboring IP phone.
B.Allows an LLDP-MED-enabled switch to disable the interface when an invalid LLDP-MED advertisement is received from a neighboring IP phone.
C.Allows an LLDP-MED-enabled switch to forward the advertisements received from a neighboring IP phone on one LAN segment to another segment.
D.Allows an LLDP-MED-enabled switch to request an LLDP-MED advertisement from a neighboring IP phone when a periodic update is not received in a specific interval.
Correct Answers: A
10: Which statement is correct about the single-secure mode of 802.1X?
A.It does not require any supplicant on the interface; no supplicant is able to gain access.
B.It allows any one supplicant on the interface to be authenticated; once authentication is successful, any other devices on the same interface will gain access.
C.It allows any number of supplicants on the interface to be authenticated; only supplicants with their own successful authentication are allowed access at the same time.
D.It allows any one supplicant on the interface to be authenticated; once authentication is successful, only the successfully authenticated supplicant is allowed access at one time.
Correct Answers: D