1. Where on a Junos device is the Junos software located?
Zip drive
Packet Forwarding Engine
Compact flash
EPROM
Which of these is true about Junos OS?
All platforms running the Junos OS use a separate process with protected memory space for each routing
protocol.
All platforms running the Junos OS use a hard drive to optimize syslog data storag
All platforms running the Junos OS use the same source code bas
All platforms running the Junos OS use the same PF
What is the maximum number of configurations,by default, that are recoverable using the rollback
command?
50
75
100
25
In which directory the traceoption files stored by default?
/var/tmp/
/var/home/
/var/log/
/var/db/
What are three terminating actions for a firewall filter? (Choose thre)
accept
reject
log
terminate
discard
2. Which of these is an equivalent network mask for 255.255.240.0?
/19
/20
/18
/17
What is considered a logical interface property on a Junos device?
duplex setting
clocking
MAC address
protocol family
Which command correctly sets a Junos device's date and time?
user@host# set system time 199708290900.00
user@host> set system time 199708290900.00
user@host# set date 199708290900.00
user@host> set date 199708290900.00
A Junos device is configured with multiple routing protocols to the same destination prefix.
By Default, which route will be active in the forwarding table?
A static route
A BGP route
An IS-IS route
An OSPF route
Which of these commands can be used to display all output at once?
show interface | show all
show interfaces | no-more
show interfaces | all
show interfaces | display all
3. Which statement is correct regarding the configuration shown in the exhibit?
the ospf-trace file will automatically replace any any existing trace file with the same name
When the ospf-trace file reaches the 64 kB file size, it is renamed and begins a new file
When the ospf-trace file has created five files, it will stop logging additional information.
Timestamp information will not be included for each line of ospf-trace output
In dotted decimal notation, what is equivalent of 11001100 10111011 00110010 00111110 ?
204.187.50.62
212.188.118.66
236.146.223.167
240.4.120.96
What will the command ping 192.168.1.1 size 5 perform?
It sends a continuous ping with packet length of five bytes to 192.168.1.1
It sends a continuous rapid ping with a packet length of five bytes to 192.168.1.1
It sends exactly five ping requests to 192.168.1.1
It sends five rapid ping requests to 192.168.1.1
Which three statements describe the Transmission Control Protocol (TCP)? (Choose thre)
TCP application examples include HTTP and SMTP.
TCP provides delivery notification and error-checking mechanisms.
TCP uses a best-effort delivery approach.
TCP is faster than the User Datagram Protocol (UDP).
4. TCP is a transport layer protocol.
What does '3' in Junos version 14.2R3.2 represent?
A service build number.
A major release number.
A single-threaded version of the Junos OS.
A minor release number.
Which of these are true about firewall filters? (Choose two)
If a packet matches all conditions in a term, and no action is specified in the then statement, the default
action is to discard the packet.
Firewall filter terms are evaluated in sequential order.
If the packet passes through all the terms in the filter without a match, the packet is discarde
forwarding-class and loss-priority are firewall filter terminating actions
If the Packet Forwarding Engine (PFE) does not have a route to the destination address of a packet,
which action does it take?
The PFE floods the packet out of all interfaces.
The PFE forwards the packet to the Routing Engine for further processing.
The PFE queues the packet and sends a request to the Routing Engine for a Layer 3 lookup.
The PFE drops the packet and sends an ICMP destination unreachable notification back to the source
devic
Which statement is true about the longer router-filter match type?
All router within the specified prefix that are longer or equal to the given prefix up to a defined acceptable
prefix length are considered a match.
All router within the specified prefix that are longer than given prefix are considered a match.
All router within the specified prefix that are longer than or equal to the given prefix are considered a match.
All router within the specified prefix that are longer than the given prefix up to a defined acceptable prefix
length are considered a match.
5. Referring to the exhibit, which command will change the 172.16.10.1/24 IP address to 172.16.100.1/24 IP
address?
set interfaces ge-0/0/2 unit 0 family inet address 172.16.100.1/24
copy interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24
insert interface ge-0/0/2 unit 0 family inet address 172.16.10.1/24 before address 172.16.100.1/24
rename interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24
When using keyboard shortcuts, which keystroke combination allows users to erase a single word to
the left of the cursor?
Ctrl + w
Ctrl + e
Ctrl + a
Ctrl + u
What are three requirements to perform an in-service software upgrade (ISSU)?
Choose thre
Graceful Routing Engine switchover (GRES) must be enable
Nonstop active routing (NSR) must be disable
The device must have dual Routing Engines.
The master and backup Routing Engines must be running the same software releas
The command request system software issue add must be used to upgrade the softwar
6. Which of these are valid actions for a routing policy? (Choose two)
next policy
accept
discard
ignore
Referring to the exhibit, what will be the result?
The device will boot in multi-user mode at the configuration prompt.
The device will boot in single-user mode at the operational prompt.
The device will boot into single-user mode at the shell prompt.
The device will boot into multi-user mode at the shell prompt.
Which of these are true about terms in a policy? (Choose three)
The action is specified in a then statement.
Terms are optional in a policy.
A from statement is mandatory in a term.
The match condition can be identified with a from statement.
The order of terms in a policy makes no differenc
7. Assuming active OSPF routes exist in the routing table as shown in the exhibit, which statement is
correct?
No routes will be sent to RIP neighbors.
RIP and OSPF routes will be sent to RIP neighbors.
Rip routes will be sent to RIP neighbors.
OSPF routes will be sent to RIP neighbors.
Click the Exhibit button.
Referring to the exhibit, which logical interface is able to forward IP traffic?
ge-0/0/1.0
ge-0/0/2.0
ge-0/0/0
8. ge-0/0/2
Which of the following option is correct regarding the configuration shown below?
static route 0.0.0.0/0 qualified-next-hop 172.30.25.1 preference 7 next-hop 172.30.25.5
The next-hop 172.30.25.1 is selected because the address has the lowest valu
The next-hop 172.30.25.1 is selected because it is the lowest protocol preferenc
The next-hop 172.30.25.1 is selected because it is listed first.
The next-hop 172.30.25.5 is selected because it is the lowest protocol preferenc
You accidentally configured interface so-0/0/0.0 with 1.1.1.1/32 instead of 1.1.1.1/30.
Which two solutions could you use to correct this configuration? (Choose two.)
[edit interfaces so-0/0/0.0] user@router# replace family inet address 1.1.1.1/32 with 1.1.1.1/30
[edit interfaces so-0/0/0.0] user@router# delete family inet address user@router# set family inet address
1.1.1.1/30
[edit interfaces so-0/0/0.0] user@router# rename family inet address 1.1.1.1/32 to address 1.1.1.1/30
[edit] user@router# replace interface so-0/0/0.0 family inet address 1.1.1.1/32 with address 1.1.1.1/30
Given the following configuration, set system authentication-order [ tacplus ] Which two statements are
correct? (Choose two.)
If the TACACS+ server is not available, the user is not allowed to access the devic
If the TACACS+ server is available and rejects the username/password provided, the local password
database is checke
If the TACACS+ server is not available, the local user database is checke
If the TACACS+ server is available and rejects the username/password provided, the user is not allowed to
access the devic
What is the interface name for the third SONET interface on a PIC installed in PIC slot 1, FPC slot 1?
interface so-3/1/1
interface sonet-1/1/3
interface so-0/1/1.2
interface so-1/1/2
9. Which of these commands can be used to return to a previous version of the software?
request system software rollback
request system software downgrade
request system software replace
request system software add
Which of these about candidate configuration are true? (Choose three)
The candidate configuration is initially a copy of the active configuration.
A system reboot is needed to change the candidate configuration into active configuration.
The candidate configuration is a temporary configuration that could become the active configuration.
Changes made to the candidate configuration take effect immediately.
The configure private command allows multiple users to edit the candidate configuration
You have entered the command "show log messages |match "error |kernel |panic" which statement is
correct regarding the keywords error, kernel and panic in the output?
the output messages will contain all messages from the file that contains all three defined Keywords
the output messages will contain all messages from the file that contains at least one of the three defined
keywords
the output messages will contain all messages from the file except the ones that contains at least one of the
three defined keywords
the output messages will contain all messages from the file except the ones that contain all three defined
keywords.
Which statement is correct about a routing policy term?
A term acts like "if" and "then" statements.
A term must contain a "from" statement.
Terms can be written in any order to achieve the same behavior.
The most specific term has precedenc
Which method loads the configuration that was active before your last commit?
rollback last-active
10. load rollback 1
rollback 1
load replace last-active
Which operational command is used to retrieve the serial numbers of components installed in a Junos
device?
show chassis hardware
show version
view hardware database
show hardware detail
Which of these are examples of dynamic IGP's? (Choose three)
OSPF
RIP
PIM
IS-IS
BGP
Which three statements are true about the PFE? (Choose thre)
The PFE handles all processes that control the chassis components.
The PFE is responsible for performing protocol updates and system management.
The PFE implements various services such as policing, stateless firewall filtering, and class of servic
The PFE uses Layer 2 and Layer 3 forwarding tables to forward traffic toward its destination.
The PFE is the central processing component of the forwarding plan
Referring to the exhibit, which command would you use to add an additional address to the ge-0/0/9.0
interface?
interfaces {
ge-0/0/8 {
unit 0 {
family inet {
address 192.168.1.1/24;
11. } } }
ge-0/0/9 {
unit 0 {
family inet {
address 192.168.10.1/24;
} } }
}
[edit interfaces ge-0/0/9 unit 0] user@router# set family inet address-secondary /24
[edit interfaces ge-0/0/9 unit 0] user@router# set family inet secondary-address /24
[edit interfaces ge-0/0/9 unit 0] user@router# set family inet address /24
[edit interfaces ge-0/0/9 unit 0] user@router# set family inet address /24 secondary
Found on several MX series models, which of these interface type connects the control and forwarding
plane?
fxp1
ae0
ge-0/0/0
fxp0
Which of these commands allows you to view interface usage in real-time?
show interface terse
show interface traffic
monitor traffic
monitor interface traffic
Which operational command shows which message is displayed on a Junos device's LCD status
screen?
show chassis lcd
show chassis status-window
show chassis craft-interface
show chassis fpd
Which of these are true about routing policy processing? (Choose two)
Junos verifies the match criteria of each policy in order and performs the associated action when a match
occurs.
12. Policies are evaluated based on the order in which they are applied to a routing protocol.
Policies are evaluated from left to right as displayed in the Junos configuration fil
Policy processing stops once the last statement in the policy is evaluate
What is the default export policy for RIP?
Accept all local routes
Accept no routes
Accept all RIP routes
Accept all direct routes
Refer to Exhibit:
Which parameter at the end of the command would provide information for troubleshooting pusposes?
No-timestamp
Print-ascii
Extensive
No-resolve
What is the decimal equivalent of 10101100 00011111 11001001 11000101?
172.31.201.197
172.30.231.182
172.19.151.107
172.28.187.189
When a system process encounters an error, how does the Junos OS protect the other processes from
being impacted?
The Junos OS executes multiple processes simultaneously.
The Junos OS executes only one process at a tim
Each process operates in its own shared memory spac
Each routing protocol runs as an individual process.
13. Referring to the exhibit, which dynamic routing protocol would be used for this topology?
IGMPv3
RIP
RIPng
OSPFv2
You are configuring a firewall filter.
Which "from" configuration would match only those packets destined for 10.10.10.1?
set term 1 from destination-address 10.10.10.1
set term 1 from address 10.10.10.1
set term 1 from destination 10.10.10.1
set term 1 from ip-prefix 10.10.10.1
Which three protocols are connection less? (Choose thre)
Telnet
DNS
SSH
TFTP
ICMP
