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Q1. Which command would you use to view interface usage details in real time?
A. show interfaces terse
B. show interfaces extensive
C. monitor interface traffic
D. monitor traffic interface
Answer: C
Q2. A network administrator wants to verify the active alarms on interface so-0/0/0.0.
Which command displays this information?
A. show interfaces alarms
B. show interfaces terse
C. show alarms extensive
D. show interfaces extensive
Answer: D
Q3. What is the purpose of a network mask?
A. It is used in conjunction with the wildcard mask to determine the number of hosts on a network.
B. It is used to define which parts of the IP address are allocated to host addresses and network prefixes.
C. It is used to hide subnets from external networks by masking the subnets with NAT.
D. It is used to differentiate a network as a classful network or a classless network.
Answer: B
Q4. Which statement is true about terms in a policy?
A. A single term can be applied to a protocol or interface, independent of the policy.
B. Once configured, terms within a policy cannot be reordered.
C. The name of a term is limited to five characters.
D. A from statement is optional in a term.
Answer: D
Q5. Which command is used to load the rescue configuration?
A. load override rescue
B. rollback rescue
C. load replace rescue-configuration
D. rollback 49
Answer: B
Q6. Which statement is true about logical units?
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.
Answer: B
Q7. -- Exhibit --
user@router> show configuration firewall
familyinet {
filter demo {
term example {
from {
source-address {
100.100.100.0/24;
}
destination-address {
200.200.200.0/24;
}
}
then {
reject;
}
}
term testing {
from {
source-address {
10.10.10.0/28;
}
destination-address {
200.200.200.0/24;
}
}
then sample;
}
term results {
from {
address {
200.200.200.0/24;
}
}
then accept;
}
term final { thenpolicer LAPD; } } } -- Exhibit --
Given the configuration shown in the exhibit, what will happen to traffic from source
10.10.10.25 destined to 200.200.200.1?
A. The traffic will be rejected.
B. The traffic will be dropped.
C. The traffic will be forwarded.
D. The traffic will be policed.
Answer: C
Q8. Which user authentication method is supported by the Junos OS as a last resort alternative?
A. TACACS+
B. RADIUS
C. local user database
D. enable password
Answer: C
Q9. Which two commands will successfully create ping traffic? (Choose two.)
A. user@router# ping 10.10.10.1
B. user@router# run ping 10.10.10.1
C. user@router> ping 10.10.10.1
D. user@router> request ping 10.10.10.1
Answer: B,C
Q10. -- Exhibit --
user@router> show route protocol static
inet.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.128/27 *[Static/5] 00:03:13 >to 10.20.106.10 via fe-0/0/5.1 192.168.1.144/29 *[Static/5] 00:03:13 >to 10.20.14.131 via ge-0/0/0.0 192.168.1.192/27 *[Static/5] 00:03:13 >to 10.18.1.1 via ge-0/0/1.0 192.168.1.128/28 *[Static/5] 00:01:06 >to 10.20.14.130 via ge-0/0/0.0 -- Exhibit --
Given the routing entries shown in the exhibit, which next-hop IP address will be used for the destination IP address 192.168.1.159? (Assume that only static routes are available for the destination.)
A. 10.20.14.130
B. 10.18.1.1
C. 10.20.14.131
D. 10.20.106.10
Answer: D
Q11. Which two commands may be used when configuring an IP address for a Gigabit Ethernet interface? (Choose two.)
A. set interfaces ge-0/0/0.0 address 10.1.1.1/24
B. set interfaces ge-0/0/0.0 family inet address 10.1.1.1/24
C. set interfaces ge-0/0/0 unit 0 family inet address 10.1.1.1/24
D. set interfaces ge-0/0/0 address 10.1.1.1/24
Answer: B,C
Q12. Which two commands allow you to return to a previous version of software on the device? (Choose two.)
A. request system software add
B. request system software downgrade
C. request system software replace
D. request system software rollback
Answer: A,D
Q13. What is the purpose of unicast reverse path forwarding?
A. to validate packet receipt on interfaces where the traffic should be received
B. to forward packets out the interfaces where the traffic should be received
C. to forward packets out the interfaces where the traffic should be sent
D. to validate packet receipt on interfaces where the traffic should be sent
Answer: A
Q14. What are two ways that packet fragmentation is handled differently between IPv6 and IPv4? (Choose two.)
A. End hosts determine the path MTU for IPv6.
B. End hosts determine the path MTU for IPv4.
C. Packet fragmentation occurs at intermediate nodes for IPv4.
D. Packet fragmentation occurs at intermediate nodes for IPv6.
Answer: A,C
Q15. What represents the binary equivalence of 148?
A. 10010110
B. 11010010
C. 10011100
D. 10010100
Answer: D