Juniper JN0-691 問題集

質問 1：
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 2：
You are troubleshooting an EBGP peering that is not establishing between loopback addresses.
In this scenario, which two statements are correct? (Choose two.)
A. Thelocal-address <loopback-address>must be configured.
B. Themultipathstatement must be configured.
C. Theaccept-remote-nexthop statementmust be configured.
D. Themultihopstatement must be configured.
正解：A,D

質問 3：
A customer operates a multi-vendor production network. They report that LSAs are aging out on Junos devices. Which OSPF parameter must be tuned to prevent this behavior?
A. hello interval
B. LSA refresh interval
C. dead interval
D. LSA retransmission interval
正解：B

質問 4：
Which route would a packet destined to 192.168.14. take?
A. 192.168.14.0/24 *[BGP/200]
B. 192.168.14.0/24 *[BGP/100]
C. 192.168.14.0/24 *[BGP/70]
D. 192.168.64.0/21 *[Direct/0]
正解：C

質問 5：
Click the Exhibit button.
-- Exhibit --
[edit]
user@router# show interfaces
ge-1/1/2 {
vlan-tagging;
unit 100 {
vlan-id 100;
family inet {
address 192.168.0.1/30;
}
}
}
lo0 {
unit 0 {
family inet {
address 10.10.10.1/32;
}
}
}
[edit]
user@router# show protocols ospf
area 0.0.0.0 {
interface ge-1/1/2.0 {
interface-type p2p;
metric 250;
}
interface lo0.0;
}
[edit]
user@router# run show ospf interface
Interface State Area DR ID BDR ID Nbrs
lo0.0 DR 0.0.0.0 10.10.10.1 0.0.0.0 0
[edit]
user@router#
-- Exhibit -
Referring to the exhibit, why does only the loopback interface appear in the show ospf interface output?
A. The ge-1/1/2 interface is configured under the wrong OSPF area.
B. The incorrect logical unit for the ge-1/1/2 interface is configured under the OSPF hierarchy.
C. The metric configured on ge-1/1/2 is not valid.
D. The interface-type is not configured properly on the ge-1/1/2 interface.
正解：B

質問 6：
You have noticed a number of recent scheduler slips on your Junos device and must identify the cause.
Which tool would you use for this task?
A. flow monitoring
B. SNMP
C. RMON
D. task accounting
正解：D

質問 7：
You have configured and successfully committed the configuration for nonstop active routing (NSR).Which command would you use to determine if NSR is operating correctly?
A. Use the show system synchronization command on the master and the backup Routing Engines.
B. Use the show task replication command on the master and the backup Routing Engines.
C. Use the show task replication command only on the master Routing Engine.
D. Use the show system synchronization command only on the master Routing Engine.
正解：B

質問 8：
Which command allows you to view real-time packet header information of the ge-0/0/0 interface?
A. monitor interface ge-0/0/0
B. show interfaces ge-0/0/0 extensive
C. show interface ge-0/0/0 detail
D. monitor traffic interface ge-0/0/0
正解：D