JNCIA JNO-400 100% pass Answers for Questions
1
Master Switch
2
There is no encryption in LLDP
3
Dedicated master and backup routing engines
Ability to upgrade all members of a virtual chassis from the master switch
Ability to interconnect members of a virtual chassis using the 10-Gigabit Ethernet uplink ports
4
Drop the traffic
Shut down the interface so traffic will be blocked
5
Ethernet-switching-options {
Voip{
Interface ge-0/0/5.0{
Vlan voice-over-ip;
Forwarding-class expedited-forwarding;
}
6
Set routing-options static route 0.0.0.0/0 next-hop 10.1.1.1
7
RSTP
LLDP
Family Ethernet-switching for all ports
8
/config/db/config
9
Allows and LLDP-MED-enabled switch to deliver VLAN and Class of Service (CoS) settings to a neighboring IP phone.
10
It allows any one supplicant on the interface to be authenticated; one authentication is successful, only successfully authenticated supplicant is allowed access at one time
11
JUNOS facilitates separate control and forwarding planes
All processes run in their own protected memory space to prevent against complete system failure when a single process fails
12
DHCP snooping drops DHCPOFFER messages from DHCP servers on untrusted interfaces
DHCP snooping treats access ports as untrusted interfaces and trunk ports as trusted interfaces by default
13
Contents in the /v directory are automatically removed upon a successful software upgrade
14
Spanning Tree Protocol (STP) cannot be configured on the interface
15
J-Web access uses the same authentication method as the CLI
16
DAI requires DHCP snooping to be configured
17
Show vrrp
18
[edit protocols ospf]
Root#
19
Syslog
Traceoptions
20
Routing Engine
Packet Forwarding Engine
21
Filtering
22
File show /config/rescue.conf.gz
23
Regardless of whether version X is newer than version Y, the new switch joins the virtual chassis operationally only after its software is upgraded or downgraded to match that the current master switch
24
Show interfaces ge-0/0/0 extensive
25
Use the monitor traffic interface command
Use the packet capture utility under the J-web troubleshoot tab
26
The interface is up and active
27
[edit firewall family Ethernet-switching]
28
Interface
MAC address
CPU control packets are sent over the lowest member link within the bundle
Load balancing is enabled by default and does not require any special configuration
VLANs
Perform the initial configuration manually with the JUNOS CLI
Initiate the EZ-setup wizard from the shell prompt by typing ezsetup
Initiate the J-Web EZ-setup initial Configuration wizard through the LCD menu by choosing initial Setup
RADIOUS
TACACS+
0 through 9
Bridging can reduce the number of collisions on a LAN
Bridging allows mixed physical media types on a common LAN
If a second “commit” does not occur within 10 minutes the system performs a “rollback 1”, “commit” sequence.
Modify the metric of an OSPF route
Advertise static routes through OSPF
User@switch> request system software add
MSTP supports up to 64 MSTIs per region
MSTP uses the CST to be backwards compatible with STP and RSTP
Learning
Discarding
Forwarding
EX4200 switches support copper or fiber network ports, depending on the switch mode
RADIOUS access-accept
MTU
Duplex mode
Access mode is the default mode for al ports
In access mode, ports receive and transmit untagged Ethernet frames by default
Only the first eight ports are provided with power
VLAN ID
802.1p priority
The routers participating in VRRP all use the same virtual MAC address for a particular virtual IP address
The routers participating in VRRP must share a common group ID to provide redundancy for the virtual IP address defined under that group
The destination MAC address determines which lookup tables is used
2 seconds
15 seconds
The single-blower fan tray used for the EX 3200 switches is field replaceable
The EX3200 switches support either 4-port 1-Gigabit Ethernet uplink modules
Egress filter tables
The authentication is performed using the local password database
[edit system services]
Root#delete web-management
Set interfaces vlan unit 2 family inet address 10.10.10.1/24
Lower route preferences are more preferred
Direct and local routes always have the best route preference
Show ntp status
Show ntp associations
The active configuration is the same as the configuration of roolback 0
The active configuration is the configuration currently operational on the switch
MAC spoofing
MAC flooding
Request system configuration rescue save
Line card
The maximum distance between two virtual chassis member switches can exceed 3 meters
When building a virtual chassis, the dedicated virtual chassis port (VCP) and the 10-Gigabit Ethernet uplink virtual chassis extender port (VCEP) can be used at the same time
RARIOUS access-accept
Your must reboot the switch
You must have console access to the switch
Protocol updates
System management
Forwarding table maintenance
Exhibit stanza B
The destination MAC address determines which lookup table is used
If the agrees port belongs to the ingrees Packet Forwarding Enginer, the packet is switched locally
DHCPREQUEST
DHCPDISCOVER
Run show version
Edit system login
Delete system syslog
User@switch> request system software add
VLAN ID
802.1p priority
Always power up the desired master switch first and assign it with the highest mastership priority
Trunk
The JUNOS software evaluates all terms in a policy sequentially, when it finds that the route matches all the criteria specified in the from clause for a term, it applies the actions specified in the then clause and stopes processing gurther terms.
Spanning Tree Protocol (STP) cannot be configured on the interface
[edit interfaces vlan]
Monitor interface ge-0/0/0
The power allocations pool is calculated based on the lower-capacity power supply
Trunk mode
Using VLANs groups users based on business needs
Using VLANs, LAN membership can be dynamically changed using software configuration
RSTP
LLDP
Family ethernet-switching for all ports
Time to live
Chassis ID
/config/db/config
The EX 4200 switches can be interconnected to from a single virtual chassis
The EX 4200 switches support redundant load-sharing AC power supplies
Syslog
Traceoptions
Console connections to individual member switches are redirected to the master switch
Manage the entire virtual chassis by configuring a single management IP address on the Virtual Management Ethernet (vme) interface
The group numbers do not match
The switch will compare route preferences and use the route with the lowest route preference
It allows any one supplicant on the interface to be authenticate; once authentication is successful, only the successfully authenticated supplicant is allowed access at the one time
If the 4-port 1-Gigabit Ethernet uplink module is installed, the last four built-in network ports are not usable
[edit protocols ospf]
Root#
Show vrrp
Choose which routes to send to a RIP neighbor
RADIOUS
TACACS+
Ge-/0/0/0 {
Unit 0 {
Family Ethernet-switching;
}
The minimum valid SNMP configuration includes only a community name
A valid DHCP server configuration must not include a BOOTP (DHCP relay) configuration
[edit system services]
Root#delete web-management
Common spanning tree
Ether-switching-options{
Voip{
Interface ge-0/0/5.0{
Vlan voice-over-ip;
Forwarding-class expedited-forwarding;
}
Multiple software process
Sepration of control and forwarding planes
Backup port
Alternate port
Designated port
Hop count
Bandwidth
Configure root authentication
Configure me0 management Ethernet port
Flooding
DAI examines ARP packets on Layer 2 access interfaces by default
RSTP
Aging
Booth HTTP and HTTPS can be used to access J-Web
J-Web access uses the same authentication method as the CLI
10
Use the monitor traffic interface command
Use the packet capture utility under the J-Web Troubleshoot tab
You apply the firewall filter under the [edit vlans] hierarchy
You define the firewall filter under the [edit firewall Ethernet-switching] hierarchy
Allows an LLDP-MED enabled switch to deliver VLAN and Class of Service (CoS) settings to a neighboring IP phone
The authentication is performed using the local password database
32768
OSPF routes learned using ge-0/0/0
Bridging can reduce the number of collisions on a LAN
Bridging allows mixed physical media types on a common LAN
Bridging user Layer 2 bridge tables to intelligently forward traffic towards its destination
Set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
Set protocols ospf area 0.0.0.0 interface ge-0/0/2.0
Master Switch
2
There is no encryption in LLDP
3
Dedicated master and backup routing engines
Ability to upgrade all members of a virtual chassis from the master switch
Ability to interconnect members of a virtual chassis using the 10-Gigabit Ethernet uplink ports
4
Drop the traffic
Shut down the interface so traffic will be blocked
5
Ethernet-switching-options {
Voip{
Interface ge-0/0/5.0{
Vlan voice-over-ip;
Forwarding-class expedited-forwarding;
}
6
Set routing-options static route 0.0.0.0/0 next-hop 10.1.1.1
7
RSTP
LLDP
Family Ethernet-switching for all ports
8
/config/db/config
9
Allows and LLDP-MED-enabled switch to deliver VLAN and Class of Service (CoS) settings to a neighboring IP phone.
10
It allows any one supplicant on the interface to be authenticated; one authentication is successful, only successfully authenticated supplicant is allowed access at one time
11
JUNOS facilitates separate control and forwarding planes
All processes run in their own protected memory space to prevent against complete system failure when a single process fails
12
DHCP snooping drops DHCPOFFER messages from DHCP servers on untrusted interfaces
DHCP snooping treats access ports as untrusted interfaces and trunk ports as trusted interfaces by default
13
Contents in the /v directory are automatically removed upon a successful software upgrade
14
Spanning Tree Protocol (STP) cannot be configured on the interface
15
J-Web access uses the same authentication method as the CLI
16
DAI requires DHCP snooping to be configured
17
Show vrrp
18
[edit protocols ospf]
Root#
19
Syslog
Traceoptions
20
Routing Engine
Packet Forwarding Engine
21
Filtering
22
File show /config/rescue.conf.gz
23
Regardless of whether version X is newer than version Y, the new switch joins the virtual chassis operationally only after its software is upgraded or downgraded to match that the current master switch
24
Show interfaces ge-0/0/0 extensive
25
Use the monitor traffic interface command
Use the packet capture utility under the J-web troubleshoot tab
26
The interface is up and active
27
[edit firewall family Ethernet-switching]
28
Interface
MAC address
CPU control packets are sent over the lowest member link within the bundle
Load balancing is enabled by default and does not require any special configuration
VLANs
Perform the initial configuration manually with the JUNOS CLI
Initiate the EZ-setup wizard from the shell prompt by typing ezsetup
Initiate the J-Web EZ-setup initial Configuration wizard through the LCD menu by choosing initial Setup
RADIOUS
TACACS+
0 through 9
Bridging can reduce the number of collisions on a LAN
Bridging allows mixed physical media types on a common LAN
If a second “commit” does not occur within 10 minutes the system performs a “rollback 1”, “commit” sequence.
Modify the metric of an OSPF route
Advertise static routes through OSPF
User@switch> request system software add
MSTP supports up to 64 MSTIs per region
MSTP uses the CST to be backwards compatible with STP and RSTP
Learning
Discarding
Forwarding
EX4200 switches support copper or fiber network ports, depending on the switch mode
RADIOUS access-accept
MTU
Duplex mode
Access mode is the default mode for al ports
In access mode, ports receive and transmit untagged Ethernet frames by default
Only the first eight ports are provided with power
VLAN ID
802.1p priority
The routers participating in VRRP all use the same virtual MAC address for a particular virtual IP address
The routers participating in VRRP must share a common group ID to provide redundancy for the virtual IP address defined under that group
The destination MAC address determines which lookup tables is used
2 seconds
15 seconds
The single-blower fan tray used for the EX 3200 switches is field replaceable
The EX3200 switches support either 4-port 1-Gigabit Ethernet uplink modules
Egress filter tables
The authentication is performed using the local password database
[edit system services]
Root#delete web-management
Set interfaces vlan unit 2 family inet address 10.10.10.1/24
Lower route preferences are more preferred
Direct and local routes always have the best route preference
Show ntp status
Show ntp associations
The active configuration is the same as the configuration of roolback 0
The active configuration is the configuration currently operational on the switch
MAC spoofing
MAC flooding
Request system configuration rescue save
Line card
The maximum distance between two virtual chassis member switches can exceed 3 meters
When building a virtual chassis, the dedicated virtual chassis port (VCP) and the 10-Gigabit Ethernet uplink virtual chassis extender port (VCEP) can be used at the same time
RARIOUS access-accept
Your must reboot the switch
You must have console access to the switch
Protocol updates
System management
Forwarding table maintenance
Exhibit stanza B
The destination MAC address determines which lookup table is used
If the agrees port belongs to the ingrees Packet Forwarding Enginer, the packet is switched locally
DHCPREQUEST
DHCPDISCOVER
Run show version
Edit system login
Delete system syslog
User@switch> request system software add
VLAN ID
802.1p priority
Always power up the desired master switch first and assign it with the highest mastership priority
Trunk
The JUNOS software evaluates all terms in a policy sequentially, when it finds that the route matches all the criteria specified in the from clause for a term, it applies the actions specified in the then clause and stopes processing gurther terms.
Spanning Tree Protocol (STP) cannot be configured on the interface
[edit interfaces vlan]
Monitor interface ge-0/0/0
The power allocations pool is calculated based on the lower-capacity power supply
Trunk mode
Using VLANs groups users based on business needs
Using VLANs, LAN membership can be dynamically changed using software configuration
RSTP
LLDP
Family ethernet-switching for all ports
Time to live
Chassis ID
/config/db/config
The EX 4200 switches can be interconnected to from a single virtual chassis
The EX 4200 switches support redundant load-sharing AC power supplies
Syslog
Traceoptions
Console connections to individual member switches are redirected to the master switch
Manage the entire virtual chassis by configuring a single management IP address on the Virtual Management Ethernet (vme) interface
The group numbers do not match
The switch will compare route preferences and use the route with the lowest route preference
It allows any one supplicant on the interface to be authenticate; once authentication is successful, only the successfully authenticated supplicant is allowed access at the one time
If the 4-port 1-Gigabit Ethernet uplink module is installed, the last four built-in network ports are not usable
[edit protocols ospf]
Root#
Show vrrp
Choose which routes to send to a RIP neighbor
RADIOUS
TACACS+
Ge-/0/0/0 {
Unit 0 {
Family Ethernet-switching;
}
The minimum valid SNMP configuration includes only a community name
A valid DHCP server configuration must not include a BOOTP (DHCP relay) configuration
[edit system services]
Root#delete web-management
Common spanning tree
Ether-switching-options{
Voip{
Interface ge-0/0/5.0{
Vlan voice-over-ip;
Forwarding-class expedited-forwarding;
}
Multiple software process
Sepration of control and forwarding planes
Backup port
Alternate port
Designated port
Hop count
Bandwidth
Configure root authentication
Configure me0 management Ethernet port
Flooding
DAI examines ARP packets on Layer 2 access interfaces by default
RSTP
Aging
Booth HTTP and HTTPS can be used to access J-Web
J-Web access uses the same authentication method as the CLI
10
Use the monitor traffic interface command
Use the packet capture utility under the J-Web Troubleshoot tab
You apply the firewall filter under the [edit vlans] hierarchy
You define the firewall filter under the [edit firewall Ethernet-switching] hierarchy
Allows an LLDP-MED enabled switch to deliver VLAN and Class of Service (CoS) settings to a neighboring IP phone
The authentication is performed using the local password database
32768
OSPF routes learned using ge-0/0/0
Bridging can reduce the number of collisions on a LAN
Bridging allows mixed physical media types on a common LAN
Bridging user Layer 2 bridge tables to intelligently forward traffic towards its destination
Set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
Set protocols ospf area 0.0.0.0 interface ge-0/0/2.0
