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質問 1：
You have applied a customized EXP rewrite rule on router R1 on the egress of the interface connecting to router R2. You want to verify if it is working properly. Which two methods would you use to accomplish this task? (Choose two.)
A. Use an input firewall filter on R2 that matches and counts on various EXP values on packets coming from R1.
B. Apply a rewrite rule on the ingress of R2 for packets coming in from R1 and count those packets for the new EXP values with a firewall filter as they leave R2.
C. Use an output filter on R1 that matches and counts on various EXP values on packets going to R2.
D. Use the traceroute utility.
正解：A,C
質問 2：
You are adding nonforwarding route reflectors to your network. Which three actions ensure that VPN routes are advertised properly? (Choose three.)
A. Add the route reflectors to the same IGP domain as their clients.
B. Add a static default route to inet.3 and/or inet6.3 on the route reflectors.
C. Use rib-groups to add IGP routes to inet.3 and/or inet6.3 on the route reflectors.
D. Use rib-groups to add VPN routes to inet.0 and/or inet6.0 on the route reflectors.
E. Add MPLS LSPs between the route reflectors and their client routers.
正解：B,C,E
質問 3：
Click the Exhibit button.
user@router> show route 100.1.1.0
inet.0: 17 destinations, 19 routes (16 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100.1.1.0/24 *[BGP/170] 00:08:51, localpref 100
AS path: 65000 I
to 17.3.1.4 via xe-5/2/0.0
> to 17.1.1.1 via xe-5/2/1.0
[BGP/170] 00:08:51, localpref 100
AS path: 65000 I
> to 17.3.1.4 via xe-5/2/0.0
Referring to the exhibit, which configuration was used to load-balance traffic across xe-5/2/0 and xe-5/2/1 interfaces?
A. set protocols bgp group CUST advertise-inactive
B. set protocols bgp group CUST metric-out igp
C. set protocols bgp group CUST multihop
D. set protocols bgp group CUST multipath
正解：D
質問 4：
Click the Exhibit button.
You are asked to troubleshoot a new Layer 3 VPN implementation. Each PE is not receiving routes from the other PE or the remote CE network.
Referring to the exhibit, what should you do on PE2 to resolve the problem?
A. Enable the keep-all option.
B. Change the route distinguisher value.
C. Change the route target value.
D. Remove the vrf-table-label parameter.
正解：C
質問 5：
You are monitoring the control plane traffic using a network analyzer on an Ethernet network segment with all routers configured with IS-IS routing. Which two statements are true? (Choose two.)
A. DIS will send hellos more frequently than other IS-IS devices.
B. PSNPs are sent periodically.
C. Only the DIS will send CSNPs periodically.
D. L1 and L2 hellos are combined in a single hello packet.
正解：A,C
You have applied a customized EXP rewrite rule on router R1 on the egress of the interface connecting to router R2. You want to verify if it is working properly. Which two methods would you use to accomplish this task? (Choose two.)
A. Use an input firewall filter on R2 that matches and counts on various EXP values on packets coming from R1.
B. Apply a rewrite rule on the ingress of R2 for packets coming in from R1 and count those packets for the new EXP values with a firewall filter as they leave R2.
C. Use an output filter on R1 that matches and counts on various EXP values on packets going to R2.
D. Use the traceroute utility.
正解：A,C
質問 2：
You are adding nonforwarding route reflectors to your network. Which three actions ensure that VPN routes are advertised properly? (Choose three.)
A. Add the route reflectors to the same IGP domain as their clients.
B. Add a static default route to inet.3 and/or inet6.3 on the route reflectors.
C. Use rib-groups to add IGP routes to inet.3 and/or inet6.3 on the route reflectors.
D. Use rib-groups to add VPN routes to inet.0 and/or inet6.0 on the route reflectors.
E. Add MPLS LSPs between the route reflectors and their client routers.
正解：B,C,E
質問 3：
Click the Exhibit button.
user@router> show route 100.1.1.0
inet.0: 17 destinations, 19 routes (16 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100.1.1.0/24 *[BGP/170] 00:08:51, localpref 100
AS path: 65000 I
to 17.3.1.4 via xe-5/2/0.0
> to 17.1.1.1 via xe-5/2/1.0
[BGP/170] 00:08:51, localpref 100
AS path: 65000 I
> to 17.3.1.4 via xe-5/2/0.0
Referring to the exhibit, which configuration was used to load-balance traffic across xe-5/2/0 and xe-5/2/1 interfaces?
A. set protocols bgp group CUST advertise-inactive
B. set protocols bgp group CUST metric-out igp
C. set protocols bgp group CUST multihop
D. set protocols bgp group CUST multipath
正解：D
質問 4：
Click the Exhibit button.
You are asked to troubleshoot a new Layer 3 VPN implementation. Each PE is not receiving routes from the other PE or the remote CE network.
Referring to the exhibit, what should you do on PE2 to resolve the problem?
A. Enable the keep-all option.
B. Change the route distinguisher value.
C. Change the route target value.
D. Remove the vrf-table-label parameter.
正解：C
質問 5：
You are monitoring the control plane traffic using a network analyzer on an Ethernet network segment with all routers configured with IS-IS routing. Which two statements are true? (Choose two.)
A. DIS will send hellos more frequently than other IS-IS devices.
B. PSNPs are sent periodically.
C. Only the DIS will send CSNPs periodically.
D. L1 and L2 hellos are combined in a single hello packet.
正解：A,C
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