QUESTION 31
Referring to the exhibit, which two statements are true about the chassis? (Choose two.)
user@router> show chassis environment
Class Item Status Measurement
Power Power Supply A OK
Power Supply B Absent
Temp FPC 0 OK 28 degrees C / 82 degrees F
FPC 1 OK 27 degrees C / 80 degrees F
Power Supply A OK 22 degrees C / 71 degrees F
Power Supply B Absent
SSB 0 OK 30 degrees C / 86 degrees F
Backplane OK 22 degrees C / 71 degrees F
Routing Engine 0 OK 26 degrees C / 78 degrees F
Routing Engine 1 Testing
Fans Rear Fan OK Spinning at normal speed
Front Upper Fan OK Spinning at normal speed
Front Middle Fan OK Spinning at normal speed
Front Bottom Fan OK Spinning at normal speed
Misc Craft Interface OK
A. Power Supply B is not installed in the system.
B. Power Supply B is installed in the system but has failed.
C. Routing Engine 1 has failed.
D. Routing Engine 1 is installed in the system but is still initializing.
Answer: AD
QUESTION 32
Referring to the exhibit, which statement is true?
user@host > show chassis craft-interface
Front Panel System LEDs:
Routing Engine 0 1
————————–
OK * .
Fail . *
Master * .
Front Panel Alarm Indicators:
—————————–
Red LED .
Yellow LED *
Major relay .
Minor relay *
Front Panel FPC LEDs:
FPC 0 1 2 3 4 5 6 7 8 9
—————————————————–
Red . . . . . . . . . .
Green * * . . . . . . * *
CB LEDs:
CB 0 1
————
Amber . .
Green * *
PS LEDs:
PS 0 1 2 3 4 5 6 7 8
————————————————-
Red . . . . . . . . .
Green . . . . * * * * *
Fan Tray LEDs:
FT 0 1 2 3
——————–
Red . . . .
Green * * * *
Front Panel SFB LEDs:
SFB 0 1 2 3 4 5 6 7
————————————
Red . . . . . . . .
Green * * * * * * * *
Front Panel Chassis Info:
Chassis Number 0x0
Chassis Role S
A. Routing Engine 1 is OK, the red LED is lit, and the major alarm relay is on.
B. Routing Engine 1 has failed, yellow LED is lit, and the minor alarm relay is on.
C. Routing Engine 1 is OK, the red LED is lit, and the minor alarm relay is on.
D. Routing Engine 1 has failed, yellow LED is lit, and the major alarm relay is on.
Answer: B
QUESTION 33
Referring to the exhibit, which Junos OS process was the last one to start?
user@router> show system processes extensive
last piD. 4160; load averages: 0.13, 0.08, 0.07 up 2+02:47:50 21:13:39
120 processes: 17 running, 90 sleeping, 1 zombie, 12 waiting
Mem: 141M Active, 96M Inact, 517M Wired, 160M Cache, 112M Buf, 55M Free
Swap:
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
1271 root 7 76 0 514M 63724K select 0 157.9H 280.42% flowd_octeon_hm
22 root 1 171 52 0K 16K RUN 0 43.3H 83.45% idlE. cpu0
4158 lab 1 78 0 49192K 16440K select 0 0:00 2.25% cli
1255 root 1 76 0 114M 17604K select 0 41:47 0.00% chassisd
24 root 1 -20 -139 0K 16K WAIT 0 18:50 0.00% swi7: clock
1293 root 1 76 0 12476K 6484K select 0 9:25 0.00% license-check
4159 root 1 76 0 38608K 5720K select 0 0:00 0.00% mgd
…
36 root 1 8 0 0K 16K usbevt 0 0:00 0.00% usb1
33 root 1 8 0 0K 16K usbevt 0 0:00 0.00% usb0
4160 root 1 77 0 24260K 1816K CPU0 0 0:00 0.00% top
1176 root 1 -8 0 0K 16K mdwait 0 0:00 0.00% md2
7 root 1 8 0 0K 16K – 0 0:00 0.00% thread taskq
1186 root 1 -8 0 0K 16K mdwait 0 0:00 0.00% md3
0 root 1 -8 0 0K 0K WAIT 0 0:00 0.00% swapper
A. flowd_octeon_hm
B. top
C. swapper
D. cli
Answer: B
QUESTION 34
Which process is responsible for managing interface devices on the system?
A. chassis daemon
B. device control daemon
C. routing protocol process
D. management daemon
Answer: B
QUESTION 35
Referring to the exhibit, which statement is true about transit traffic sent to 2.2.2.2?
user@R1> show route 2.2.2.2
user@R1> show route forwarding-table destination 2.2.2.2
Routing table: default.inet
Internet:
Destination Type RtRef Next hop Type Index NhRef Netif
2.2.2.2/32 user 1 17.1.1.2 ucst 642 9 xe-1/1/0.0
A. R1 will discard the packet.
B. R1 will forward the packet.
C. R1 will redirect the packet to the Routing Engine.
D. R1 will reject the packet.
Answer: B
QUESTION 36
Referring to the exhibit, which statement is true about transit traffic sent to 2.2.2.2?
user@R1> show route forwarding-table destination 2.2.2.2
user@R1> show route 2.2.2.2
inet.0: 10 destinations, 10 routes (10 active, 0 holddown, 0 hidden)
+ = Active Route, – = Last Active, * = Both
2.2.2.2/32 *[OSPF/10] 2w3d 22:19:41, metric 1
> to 17.1.1.2 via xe-1/1/0.0
A. R1 will discard the packet.
B. R1 will forward the packet.
C. R1 will redirect the packet to the Routing Engine.
D. R1 will reject the packet.
Answer: A
QUESTION 37
Referring to the exhibit, which counter indicates a possible denial of service attack?
user@R1> show pfe statistics traffic
Packet Forwarding Engine traffic statistics:
Input packets: 47593914461368 2 pps
Output packets: 28805646 3 pps
Packet Forwarding Engine local traffic statistics:
Local packets input : 36278104324
Local packets output : 2
Software input control plane drops : 0
Software input high drops : 0
Software input medium drops : 0
Software input low drops : 0
Software output drops : 0
Hardware input drops : 191367536738
Packet Forwarding Engine local protocol statistics:
HDLC keepalives : 0
ATM OAM : 0
Frame Relay LMI : 0
PPP LCP/NCP : 0
OSPF hello : 3883169
OSPF3 hello : 0
RSVP hello : 1440704
LDP hello : 4782297
BFD : 0
IS-IS IIH : 0
LACP : 0
ARP : 765512
ETHER OAM : 0
Unknown : 1897610
Packet Forwarding Engine hardware discard statistics:
Timeout : 0
Truncated key : 0
Bits to test : 0
Data error : 0
Stack underflow : 0
Stack overflow : 0
Normal discard : 191367536738
Extended discard : 0
Invalid interface : 0
Info cell drops : 191367536738
Fabric drops : 191367536738
A. hardware input drops
B. normal discard
C. info cell drops
D. fabric drops
Answer: A
QUESTION 38
You are using the ping command to troubleshoot a suspected MTU problem.
Referring to the exhibit, which two statements are true? (Choose two.) The first ping fails because the do-not-fragment option is set.
user@R1> show configuration interfaces
xe-1/1/0 {
unit 0 {
family inet {
address 17.1.1.1/24;
}
family mpls;
}
}
user@R1> ping 17.1.1.2 size 1473 do-not-fragment
PING 17.1.1.2 (17.1.1.2): 1473 data bytes
ping: sendto: Message too long
ping: sendto: Message too long
ping: sendto: Message too long
user@R1> ping 17.1.1.2 logical-system R1 size 1472 do-not-fragment
PING 17.1.1.2 (17.1.1.2): 1472 data bytes
1480 bytes from 17.1.1.2: icmp_seq=0 ttl=64 time=0.933 ms
1480 bytes from 17.1.1.2: icmp_seq=1 ttl=64 time=0.838 ms
1480 bytes from 17.1.1.2: icmp_seq=2 ttl=64 time=4.688 ms
A. The first ping fails because the Junos OS takes into account Layer 2 headers while calculating the MTU.
B. The first ping fails because the Junos OS takes into account ICMP and IP headers while calculating the MTU.
C. The first ping fails because the Junos OS takes into account the CRC header while calculating the MTU.
Answer: AC
QUESTION 39
Referring to the exhibit, which three statements are true? (Choose three.)
user@R1> show configuration interfaces lo0
unit 5 {
family inet {
filter {
input JUNOS;
}
address 5.5.5.5/32;
}
}
user@R1> show configuration firewall family inet filter JUNOS
term term1 {
from {
protocol tcp;
port [ telnet ftp ftp-data snmp ssh syslog http tacacs 64644 1024-65535 ];
}
then {
log;
accept;
}
}
term default {
then {
discard;
}
}
A. R1 will drop all traffic with destination address 5.5.5.5.
B. R1 will drop all OSPF packets.
C. R1 will drop all non-TCP transit traffic.
D. R1 will accept telnet traffic.
E. R1 will drop all BGP packets.
Answer: BDE
QUESTION 40
Referring to the exhibit, router r2 does not advertise the static route to peer 10.1.2.1.
user@r2# run show route 100.1.1.0/24 detail
inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
100.1.1.0/24 (1 entry, 1 announced)
*Static PreferencE. 5
Next hop typE. Reject
Address: 0x8f7b5a4
Next-hop reference count: 2
StatE.
Local AS: 65001
AgE. 59
Task: RT
Announcement bits (1): 2-KRT
AS path: 65005 I
user@r2# show protocols bgp
group ibgp {
type external;
export to-bgp;
neighbor 10.1.2.1 {
local-address 10.1.2.2;
family inet {
unicast;
}
family inet6 {
unicast;
}
peer-as 65005;
}
}
user@r2# run show bgp summary
Groups: 1 Peers: 1 Down peers: 0
Table Tot Paths Act Paths Suppressed History Damp State Pending
inet6.0
0 0 0 0 0 0
inet.0
0 0 0 0 0 0
Peer AS InPkt OutPkt OutQ Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped…
10.1.2.1 65005 31 31 0 0 12:08 Establ
inet6.0: 0/0/0/0
inet.0: 0/0/0/
user@r2# show policy-options
policy-statement to-bgp {
from protocol static;
then accept;
}
user@r2# run show route advertising-protocol bgp 10.1.2.1
[edit]
user@r2#
What is the problem?
A. The export policy is incorrect.
B. The static route has Next hop typE.Reject.
C. The export policy should be applied under the [edit protocols bgp group ibgp neighbor 10.1.2.1] hierarchy.
D. An AS path loop is detected.
Answer: D
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