JUNOS Enterprise Switching

Chapter Review Questions

1. Which two switches support the remote power supply option?

   1. EX3200

   2. EX4200

   3. EX8208

   4. EX8216

2. True or false: all EX Series switches have redundant routing engines.

3. Which feature must be enabled in order to avoid forwarding engine reset during a routing engine switchover?

   1. Hitless switchover

   2. Graceful Routing Engine Switchover

   3. VRRP

   4. BFD

4. How many routers can be in a given VRRP group?

   1. 16

   2. 8

   3. 6

   4. Limitless

5. Which feature synchronizes routing state between two routing engines?

   1. Synchronized commits

   2. Graceful Restart

   3. Non-Stop Routing

   4. Mirror disk

6. True or false: Graceful Restart needs to be enabled only on the restarting switch.

7. True or false: you can have multiple backup routing engines in a Virtual Chassis.

8. Which end of the link transmits its LACP parameters?

   1. Actor

   2. Sender

   3. Partner

   4. Initiator

   5. Director

   6. Producer

9. Which JUNOS software CLI command allows the switch to respond only to initial LACP messages?

   1. active

   2. listen

   3. partner

   4. passive

10. Which JUNOS software command will show the state of the LACP messages?

    1. show eth0

    2. show interfaces aggregated-ethernet

    3. show lacp interfaces

    4. show log lacp messages

11. Which two protocols allow for the sending of BFD messages in JUNOS software?

    1. OSPF

    2. RSTP

    3. EIGRP

    4. RIP

12. Which configuration allows an aggregated Ethernet to be created on the chassis?

    1.    aggregated-devices {
           ethernet {
               device-count 1;
           }
       }

    2.    ge-0/0/9 {
           ether-options {
               802.3ad ae0;
           }
       }

    3.    ae0 {
           unit 0 {
               family ethernet-switching

    4.    ae0 {
           ether-options {
               802.3ad ae0;