Pregunta 1
Pregunta
Which mode is used to allow only a single person to edit a configuration?
Respuesta
-
A. configure batch
-
B. configure private
-
C. configure exclusive
-
D. configure dynamic
Pregunta 2
Pregunta
Which information would you find using the CLI help function? (Choose two.)
Pregunta 3
Pregunta
Which two statements are true of login classes? (Choose two.)
Respuesta
-
A. Users can be members of multiple login classes.
-
B. Login classes define authorization parameters for a user.
-
C. There are five system-defined login classes.
-
D. Login class permission flags can be overridden for certain commands.
Pregunta 4
Pregunta
Which two statements are true regarding rescue configurations? (Choose two.)
Respuesta
-
A. Once saved, a rescue configuration is loaded using the rollback 0 command.
-
B. The rescue configuration must contain the minimal elements necessary to restore
network connectivity.
-
C. A minimal rescue configuration is defined by default.
-
D. A rescue configuration must include a root password.
Pregunta 5
Pregunta
-- Exhibit --
Amnesiac (ttyu0)
login:
-- Exhibit --
Which statement is correct about the information shown in the exhibit?
Respuesta
-
A. The factory-default configuration is running on the device.
-
B. The Junos OS was corrupted and did not boot correctly.
-
C. The device was recently upgraded to a newer version of the Junos OS.
-
D. The device's memory has been corrupted and no file system is present after a reboot.
Pregunta 6
Pregunta
Which two statements are true regarding the use of NTP clock synchronization? (Choose
two.)
Respuesta
-
A. The Junos OS supports client, server, and symmetric modes of NTP operation.
-
B. Synchronized time on all network devices makes log messages more useful for
troubleshooting.
-
C. Authentication methods are not supported.
-
D. The Junos OS must be used as the primary time reference.
Pregunta 7
Pregunta
You are asked to change the cable on interface ge-2/1/3.
Which statement is correct?
Respuesta
-
A. The cable is found on FPC 1, slot 3, and port 2.
-
B. The cable is found on slot 1, port 2, and FPC 3.
-
C. The cable is found on port 3, FPC 2, and slot 1.
-
D. The cable is found on FPC 1, slot 2, and port 3.
Pregunta 8
Pregunta
You are asked to change the cable on interface fe-4/2/3.
Which statement is correct?
Respuesta
-
A. The cable is found on port 4, FPC 2, and slot 3.
-
B. The cable is found on slot 2, port 3, and FPC 4.
-
C. The cable is found on FPC 4, slot 3, and port 2.
-
D. The cable is found on slot 2, FPC 3, and port 4.
Pregunta 9
Pregunta
You are asked to change the cable on interface ge-0/2/1.
Which statement is correct?
Respuesta
-
A. The cable is found on slot 2, port 0, and FPC 1.
-
B. The cable is found on FPC 0, slot 1, and port 2.
-
C. The cable is found on port 1, slot 0, and FPC 2.
-
D. The cable is found on slot 2, port 1, and FPC 0.
Pregunta 10
Pregunta
-- Exhibit --
user@router> show configuration
groups {
ge-int {
interfaces {
<ge-*> {
unit 0 {
familyinet {
address 10.10.12.1/24;
}
}
}
}
}
}
...
interfaces {
ge-0/0/1 {
unit 0;
}
-- Exhibit --
Referring to the exhibit, which two actions would you take to only apply the 10.10.12.1/24
address to the ge-0/0/1.0 interface?
Respuesta
-
A. Apply the ge-int group to the configuration at the [edit] hierarchy.
-
B. Apply the ge-int group to the configuration at the [edit interfaces ge-0/0/1] hierarchy.
-
C. Apply the ge-int group to the configuration at the [edit interfaces ge-0/0/1 unit 0]
hierarchy.
-
D. Apply the ge-int group to the configuration at the [edit interfaces] hierarchy.
Pregunta 11
Pregunta
Which interface type connects the control and forwarding planes on an MX Series device?
Respuesta
-
A. fxp1
-
B. fxp0
-
C. me0
-
D. ae1
Pregunta 12
Pregunta
Which command is used to restore a Junos device to its default state?
Pregunta 13
Pregunta
-- Exhibit --
{master:0}[edit interfaces]
user@switch# show
me0 {
disable;
unit 0 {
familyinet {
address 10.1.1.10/24;
}
}
}
-- Exhibit --
Administrators report that they are unable to access the management interface of the EX
Series device shown in the exhibit.
Which command will resolve this problem?
Respuesta
-
A. delete me0 disable
-
B. activate me0
-
C. set me0 unit 0 enable
-
D. deactivate me0
Pregunta 14
Pregunta
Which statement is true about logical units?
Respuesta
-
A. Logical units are similar to VLANs used by other vendors.
-
B. A logical unit is required for transit interfaces.
-
C. Frame Relay encapsulation supports one logical unit.
-
D. Link speed and duplex are configured in the logical unit properties.
Pregunta 15
Pregunta
-- Exhibit --
[edit system syslog]
user@router# show
host 152.170.10.10 {
any warning;
}
file changes {
change-log info;
}
-- Exhibit --
Referring to the exhibit, which two statements are true? (Choose two.)
Respuesta
-
A. Any warning message will be sent to the 152.170.10.10 host.
-
B. A warning message will be logged when the 152.170.10.10 host logs in.
-
C. Changes to the device's internal temperatures will be logged.
-
D. Changes to the configuration will be logged.
Pregunta 16
Pregunta
Which command is used to load the rescue configuration?
Pregunta 17
Pregunta
Which two external authentication servers are supported for administrative access to a
Junos device? (Choose two.)
Respuesta
-
A. RADIUS
-
B. LDAP
-
C. ACE
-
D. TACACS+
Pregunta 18
Pregunta
-- Exhibit --
user@router> restart
^
unknown command.
-- Exhibit --
You are investigating routing problems on a device running the Junos OS. You receive the
error shown in the exhibit when you attempt to restart the routing process.
Which statement describes the problem?
Respuesta
-
A. You have typed an invalid command.
-
B. You must be in configuration mode to restart the routing process.
-
C. You do not have permission to restart the routing process.
-
D. You must wait until close of business to restart the routing process, based on userdefined
policy.
Pregunta 19
Pregunta
At which command prompt would you issue the set date <date> command?
Pregunta 20
Pregunta
You must apply the family inet configuration parameter only to Gigabit Ethernet interfaces
that are in FPC 2.
Which output applies to this configuration?
Respuesta
-
A. [edit groups]
user@router# show
ge-int {
interfaces {
<ge-*> {
unit 0 {
familyinet;
}
}
}
}
-
B. [edit groups]
user@router# show
ge-int {
interfaces {
<*> {
unit 0 {
familyinet;
}
}
}
}
-
C. [edit groups]
user@router# show
ge-int {
interfaces {
<*-2/*/*> {
unit 0 {
familyinet;
}
}
}
}
-
D. [edit groups]
user@router# show
ge-int {
interfaces {
<ge-2/*> {
unit 0 {
familyinet;
}
}
}
}
Pregunta 21
Pregunta
-- Exhibit --
[edit interfaces ge-0/0/1]
user@router# show
unit 100 {
vlan-id 100;
familyinet {
address /24;
}
}
[edit interfaces ge-0/0/1]
user@router# commit check
[edit interfaces ge-0/0/1]
'unit 100'
Only unit 0 is valid for this encapsulation
error: configuration check-out failed
-- Exhibit --
Referring to the exhibit, you are unable to commit the configuration for the ge-0/0/1
interface.
What must you do to commit the configuration?
Respuesta
-
A. You must set the vlan-tagging parameter under the [edit interfaces ge-0/0/1] hierarchy.
-
B. You must use the rename command to change unit 100 to unit 0.
-
C. You must set the encapsulation flexible-ethernet-services parameter under the [edit
interfaces ge-0/0/1] hierarchy.
-
D. You must set the encapsulation vlan-ccc parameter under the [edit interfaces ge-0/0/1
unit 100] hierarchy.
Pregunta 22
Pregunta
You are asked to configure the configuration archival feature on your Junos devices.
Which two transfer methods are available? (Choose two.)
Respuesta
-
A. TFTP
-
B. FTP
-
C. SCP
-
D. SFTP
Pregunta 23
Pregunta
-- Exhibit --
user@router> show system alarms
1 alarms currently active
Alarm time Class Description
2013-09-14 23:54:01 UTC Minor Rescue configuration is not set
-- Exhibit --
Which command will resolve the problem shown in the exhibit?
Respuesta
-
A. user@router> request system configuration rescue save
-
B. user@router# request system configuration rescue save
-
C. user@router> file copy current /config/rescue.conf
-
D. user@router# file copy current /config/rescue.conf
Pregunta 24
Pregunta
Which command displays only the interfaces that are operationally and administratively up?
Respuesta
-
A. show interfaces terse | match up
-
B. show interfaces terse | match down
-
C. show interfaces terse | except up
-
D. show interfaces terse | except down
Pregunta 25
Pregunta
To which directory does the Junos OS write traceoptions files?
Respuesta
-
A. /var/tmp/
-
B. /var/
-
C. /var/log/
-
D. /var/home/<username>/
Pregunta 26
Pregunta
Which command gracefully shuts down the Junos OS?
Respuesta
-
A. request system reboot
-
B. request system logout
-
C. request system halt
-
D. restart gracefully
Pregunta 27
Pregunta
Which action does the ping 172.18.1.1 size 5 command perform?
Respuesta
-
A. It sends only five ping requests to the 172.18.1.1 destination.
-
B. It sends a continuous ping with a packet length of five bytes to the 172.18.1.1
destination.
-
C. It sends five rapid ping requests to the 172.18.1.1 destination.
-
D. It sends a continuous rapid ping with a packet length of five bytes to the 172.18.1.1
destination.
Pregunta 28
Pregunta
Which command displays the current temperature of a Junos device's components?
Pregunta 29
Pregunta
Which command would you use to view interface usage details in real time?
Respuesta
-
A. show interfaces terse
-
B. show interfaces extensive
-
C. monitor interface traffic
-
D. monitor traffic interface
Pregunta 30
Pregunta
What happens when you issue the ping 172.19.102.2 count 5 command?
Respuesta
-
A. ICMP echo requests are sent to 172.19.102.2 in five-millisecond intervals.
-
B. ICMP echo requests are sent to 172.19.102.2 until five packets are dropped.
-
C. ICMP echo requests are sent to 172.19.102.2 five times.
-
D. ICMP echo requests are sent continuously to 172.19.102.2 for five seconds.
Pregunta 31
Pregunta
You are asked to configure real-time performance monitoring (RPM) between two Junos
devices to track traffic in your network.
Which two application traffic types can you track? (Choose two.)
Respuesta
-
A. ICMP
-
B. SNMP
-
C. TCP
-
D. HTTPS
Pregunta 32
Pregunta
You are troubleshooting a routing issue and need to check the hop-by-hop path to the
10.10.10.10 destination.
Which three commands would display the path? (Choose three.)
Respuesta
-
A. user@router# traceroute 10.10.10.10
-
B. user@router> ping record-route 10.10.10.10
-
C. user@router>traceroute 10.10.10.10
-
D. user@router# run traceroute 10.10.10.10
-
E. user@router# ping record-route 10.10.10.10
Pregunta 33
Pregunta
You are asked to free up disk space so you can update your version of the Junos OS.
Which two commands display the files that will be removed? (Choose two.)
Respuesta
-
A. user@router> request system storage cleanup
-
B. user@router> show system storage
-
C. user@router> request system storage cleanup dry-run
-
D. user@router> show system storage detail
Pregunta 34
Pregunta
Which two commands are used during the password recovery process? (Choose two.)
Pregunta 35
Pregunta
You receive an alarm that your Junos device is experiencing problems regarding
temperature.
Which two commands would you use to investigate this problem? (Choose two.)
Respuesta
-
A. show chassis hardware
-
B. show chassis temperature-thresholds
-
C. show chassis pic fpc-slot <value> pic-slot <value>
-
D. show chassis environment
Pregunta 36
Pregunta
-- Exhibit --
[edit interfaces ge-0/0/6]
user@router# show
{
familyinet {
address 172.16.10.100/24;
address 172.16.10.101/24;
}
}
-- Exhibit --
You have two IP addresses configured on the ge-0/0/6 interface, as shown in the exhibit.
You want to select the 172.16.10.101 address as the source address for packets sent from
this interface to hosts on a remote subnet.
Which parameter would you add to the 172.16.10.101 address to complete this task?
Respuesta
-
A. preferred
-
B. broadcast
-
C. primary
-
D. arp 172.16.10.101
Pregunta 37
Pregunta
Which routing instance type is used to facilitate filter-based forwarding?
Respuesta
-
A. VRF
-
B. FBF
-
C. forwarding
-
D. no-forwarding
Pregunta 38
Pregunta
Which two statements are true about static routes in the Junos OS? (Choose two.)
Respuesta
-
A. Static routes are defined at the [edit routing-instances] hierarchy.
-
B. Static routes must have a next hop defined.
-
C. Static routes remain in the routing table until you remove them or until they become
inactive.
-
D. Static routes are learned by neighboring devices and added to their routing tables.
Pregunta 39
Pregunta
Which configuration parameter on a Junos device alters the default next-hop resolution
behavior of a static route?
Respuesta
-
A. no-readvertise
-
B. resolve
-
C. preference
-
D. passive
Pregunta 40
Pregunta
Which two statements are true regarding route preference? (Choose two.)
Respuesta
-
A. Lower preference values are more preferred than higher preference values.
-
B. You can modify the default preference values for any of the routing information sources.
-
C. By default, a static route is more preferred than a RIP route.
-
D. A static route is always preferred over a direct route.
Pregunta 41
Pregunta
Which two statements are true regarding routing tables? (Choose two.)
Respuesta
-
A. The routing table is populated by the forwarding table.
-
B. Devices running the Junos OS can accommodate multiple routing tables.
-
C. Information learned from routing protocols is stored in the routing table.
-
D. The primary routing table for IPv4 unicast routes is inet.4.
Pregunta 42
Pregunta
Which two statements are correct when you use the reject parameter as the next-hop value
for a static route? (Choose two.)
Respuesta
-
A. The packet is dropped and the packet's source is marked with the no-readvertise
parameter.
-
B. The system sends the packet back to the source.
-
C. The packet is dropped from the network.
-
D. The system sends an ICMP message back to the source of the packet.
Pregunta 43
Pregunta
Which routing table stores IPv4 unicast routes and is used by multicast routing protocols to
prevent loops?
Respuesta
-
A. inet.0
-
B. inet.1
-
C. inet.2
-
D. inet.3
Pregunta 44
Pregunta
Which source of routing information is preferred by default?
Respuesta
-
A. OSPF internal
-
B. OSPF external
-
C. IS-IS Level 1
-
D. IS-IS Level 2
Pregunta 45
Pregunta
What are two routing requirements for a device to communicate with another device?
(Choose two.)
Respuesta
-
A. end-to-end communications path
-
B. hosts on the same Layer 2 broadcast domain
-
C. hosts on the same Layer 3 broadcast domain
-
D. routing information on participating Layer 3 devices
Pregunta 46
Pregunta
-- Exhibit --
inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
172.23.10.0/24 *[Direct/0] 21:59:56
>via ge-0/0/6.0
172.23.10.100/32 *[Local/0] 22:00:10
Local via ge-0/0/6.0
172.23.12.0/24 *[Static/5] 00:01:36
>to 172.23.10.1 via ge-0/0/6.0
172.23.15.0/24 *[Static/5] 00:01:36
>to 172.23.10.1 via ge-0/0/6.0
-- Exhibit --
Users are unable to access resources in the 172.23.14.0/24 subnet.
Referring to the exhibit, which two actions would solve this problem? (Choose two.)
Respuesta
-
A. Configure a separate routing instance.
-
B. Configure a default static route.
-
C. Configure a static route to 172.23.14.0/24.
-
D. Configure the existing routes to resolve the indirect next hop.
Pregunta 47
Pregunta
What are three types of routing instances? (Choose three.)
Respuesta
-
A. VPN
-
B. virtual-router
-
C. policy
-
D. VRF
-
E. forwarding
Pregunta 48
Pregunta
Which two statements describe the forwarding table in the Junos OS? (Choose two.)
Respuesta
-
A. The forwarding table contains all known routes.
-
B. The forwarding table stores a subset of information from the routing table.
-
C. Junos devices use the forwarding table to compare incoming packets against existing
entries to determine the next hop.
-
D. If multiple matches exist, the forwarding table uses the least-specific entry to forward
packets toward the destination.
Pregunta 49
Pregunta
-- Exhibit --
[edit routing-options]
user@router# show
static {
route 0.0.0.0/0 {
next-hop 10.1.1.1;
qualified-next-hop 10.1.1.254 {
preference 4;
}
}
}
-- Exhibit --
Assuming both paths shown in the exhibit are available, which statement is correct?
Respuesta
-
A. Traffic matching the default route will use 10.1.1.1 as the next hop.
-
B. Traffic matching the default route will use 10.1.1.254 as the next hop.
-
C. Traffic matching the default route will be load-balanced per packet across both next
hops.
-
D. Traffic matching the default route will be load-balanced per flow across both next hops.
Pregunta 50
Pregunta
Which command will silently drop a matching packet?
Respuesta
-
A. set routing-options static route 10.1.1.1/32 no-retain
-
B. set routing-options static route 10.1.1.1/32 discard
-
C. set routing-options static route 10.1.1.1/32 reject
-
D. set routing-options static route 10.1.1.1/32 passive
Pregunta 51
Pregunta
Which command will drop a matching packet and send out a notification message?
Respuesta
-
A. set routing-options static route 10.1.1.1/32 no-retain
-
B. set routing-options static route 10.1.1.1/32 discard
-
C. set routing-options static route 10.1.1.1/32 reject
-
B. set routing-options static route 10.1.1.1/32 drop