Juniper Exam Questions

Which two configurations will accomplish this task?

You manage the network shown in the exhibit. All four switches have the default RSTP settings.
The elected root bridge is switch-1. You must ensure that switch-4 always prefers the connection
to switch-3 to reach the root bridge.
Which two configurations will accomplish this task? (Choose two.)
{master:0}[edit]

A.
user@switch-4# show protocols
rstp {
interface ge-0/0/3.0 {
priority 64;
cost 20000;
}}
{master:0}[edit]

B.
user@switch-4# show protocols

rstp {
interface ge-0/0/3.0 {
priority 128;
cost 20000;
}}
{master:0}[edit]

C.
user@switch-3# show protocols
rstp {
interface ge-0/0/2.0 {
priority 240;
cost 200000;
}}
{master:0}[edit]

D.
user@switch-3# show protocols
rstp {
interface ge-0/0/2.0 {
priority 128;
cost 2000;
}}