Juniper JN0-691 問題集

質問 1：
You have implemented GRES on the routers in your network. All routers are using OSPF. You want to ensure that traffic continues to flow uninterrupted if a Routing Engine switchover occurs.
Which two features would accomplish this task? (Choose two.)
A. Enable nonstop active routing.
B. Enable graceful restart.
C. Enable the VirtualRouter Redundancy Protocol.
D. Enable nonstop forwarding with stateful switchover.
正解：A,B

質問 2：
-- Exhibit --
[edit]
user@router# show interfaces
ge-1/1/2 {
gigether-options {
802.3ad ae0;
}
}
ge-1/1/3 {
gigether-options {
802.3ad ae0;
}
}
ae0 {
unit 0 {
family bridge {
interface-mode trunk;
vlan-id-list 100;
}
}
}
-- Exhibit --
You are asked to configure a LAG. You configure and commit the configuration as shown in the exhibit. When verifying your ae0 interface, you encounter the following error:
[edit] user@router# run show interfaces ae0 error: device ae0 not found
Which command would you use to resolve this problem?
A. set chassis alarm ethernet link-down ignore
B. set chassis aggregated-devices ethernet device-count 1
C. set chassis network-services ethernet
D. set interfaces ae0 aggregated-ether-options lacp active
正解：B

質問 3：
By default, in which table are OSPF routes stored on a Junos device?
A. inet.2
B. inet.3
C. inet.0
D. inet.1
正解：C

質問 4：
Click the Exhibit button.
-- Exhibit --
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;
}
}
-- Exhibit --
Referring to the exhibit, which three statements are true? (Choose three.)
A. R1 will drop all traffic with destination address 5.5.5.5.
B. R1 will accept telnet traffic.
C. R1 will drop all non-TCP transit traffic.
D. R1 will drop all OSPF packets.
E. R1 will drop all BGP packets.
正解：B,D,E

質問 5：
You are asked to troubleshoot a problem with control traffic on the ge-0/0/0 interface on an SRX240 device.
Which command will accomplish this task?
A. monitor traffic
B. monitor start
C. monitor list
D. monitor interface
正解：A

質問 6：
What information would be seen in the output of theshow chassis environmentcommand? (Choose two.)
A. temperature
B. fan speed
C. part number
D. serial number
正解：A,B

質問 7：
Which statement is true regarding rpd scheduler slips?
A. rpd scheduler slips indicate that the routing process is too busy.
B. rpd scheduler slips indicate that the routing process must be restarted.
C. rpd scheduler slips indicate that the routing process cannot implement a configured policy.
D. rpd scheduler slips indicate that the routing process has failed.
正解：A

質問 8：
Click the Exhibit button.
-- Exhibit --
user@router> show snmp statistics
SNMP statistics:
Input:
Packets: 246213, Bad versions: 12, Bad community names: 12,
Bad community uses: 0, ASN parse errors: 0,
Too bigs: 0, No such names: 0, Bad values: 0,
Read onlys: 0, General errors: 0,
Total request varbinds: 227084, Total set varbinds: 67,
Get requests: 44942, Get nexts: 1 , Set requests: 10712,
Get responses: 0, Traps: 0,
Silent drops: 0, Proxy drops: 0, Commit pending drops: 0,
Throttle drops: 0,
V3 Input:
Unknown security models: 0, Invalid messages: 0
Unknown pdu handlers: 0, Unavailable contexts: 0 Unknown contexts: 0, Unsupported security levels: 0 Not in time windows: 0, Unknown user names: 0 Unknown engine ids: 0, Wrong digests: 0, Decryption errors: 0 Output: Packets: 246093, Too bigs: 0, No such names: 0, Bad values: 0, General errors: 0, Get requests: 0, Get nexts: 0, Set requests: 0, Get responses: 246025, Traps: 0 -- Exhibit -
A new SNMP session has recently been implemented on this router and is experiencing problems sending and receiving SNMP information.
Referring to the exhibit, which two problems are indicated by the received messages from the NMS? (Choose two.)
A. unsupported SNMP community name
B. unsupported SNMP version indicated
C. invalid SNMP version indicated
D. unknown SNMP community name
正解：B,D