You are configuring CoS schedulers on an M Series router. For some queues, you want to limit
throughput to the configured transmit rate, and buffer excess traffic.
Which two transmission rate options can you use? (Choose two.)
![PrepAway - Latest Free Exam Questions & Answers](https://www.briefmenow.org/img/pa5.jpg)
A.
exact
B.
rate-limit
C.
remainder
D.
shaping-rate
Explanation:
http://www.juniper.net/techpubs/en_US/junos12.2/topics/reference/configuration-statement/transmit-rate-edit-cos.html
Should be A and B
0
0
there is no shaping-rate option ….A & B correct answer
0
0
transmit-rate (rate | percent percentage | remainder) ;
0
0
i think the rate-limit option will not buffer excess traffic, so the answer should be A, D
1
0
http://kb.juniper.net/InfoCenter/index?page=content&id=KB14597
0
0
http://forums.juniper.net/t5/Routing/JUNOS-QOS-transmit-rate-exact-vs-shape-rate/m-p/199317#M9450
0
0
rate-limit will drop traffic (http://www.aiotestking.com/juniper/what-happens-to-traffic-exceeding-100-mbps-7/).
A & D.
0
0
so how shaping rate and guaranteed rate teat traffic and transmit rate and buffer size treat traffic?
0
0
Correct answer A & D
3.Configure the traffic-control profiles that can be applied to the scheduler node:
[edit]
class-of-service {
traffic-control-profiles {
tcp-basic-rate { # Specify a scheduler map and traffic controls
shaping-rate 10m;
}
tcp-premium-with-4-queues { # Specify a scheduler map and traffic controls
scheduler-map smap-premium-4q;
shaping-rate 20m;
guaranteed-rate 10m;
delay-buffer-rate 5m;
http://www.juniper.net/techpubs/en_US/junos15.1/topics/example/cos-subscriber-access-adjustments-subscriber-local-loops.html
0
0
A & D is correct.
Without reading too much into the grammar, we are being asked which rate options are fit for purpose with a view to buffering if required:
admin@J8-PE# set class-of-service schedulers MY_SCH ?
Possible completions:
Execute this command
+ apply-groups Groups from which to inherit configuration data
+ apply-groups-except Don’t inherit configuration data from these groups
> buffer-size Queue transmission buffer size
> drop-profile-map Assign drop profile to a loss priority and protocol
excess-priority Priority in the excess region
> excess-rate Excess bandwidth sharing proportion
priority Scheduling priority
> shaping-rate Shaping rate
> transmit-rate Transmit rate
“shaping rate” will do the job.
“transmit-rate exact” will also do the job.
2
0