JUNOS Enterprise Routing

Chapter Review Questions

1. On a J-series router interface, what are the possible values for the PIC slot number?

   1. 1

   2. 0

   3. Variable, depending on the physical location of the interface

   4. A range of 0–4

2. Which two interfaces are considered permanent interfaces on a Juniper Networks router? (Choose two.)

   1. lo0

   2. fe-0/1/0

   3. fxp3

   4. fxp0

   5. loopback0

3. On a point-to-point interface, which logical unit(s) can be assigned to an interface?

   1. None

   2. 4095

   3. 100

   4. 0

4. Which interface name indicates that it is a serial interface in a J-series router that is located in PIM slot 1 and port number 1?

   1. se-1/1

   2. se-1/0/1

   3. serial1/1

   4. se-0/1/1

5. Which JUNOS software command allows for real-time display of interface statistics?

   1. monitor interface

   2. show interface statistics

   3. monitor traffic

   4. monitor statistics

6. True or False: an interface must be administratively enabled before it is operationally in the up status.

7. What is the default Layer 2 encapsulation for a serial interface?

   1. SDLC

   2. HDLC

   3. X.121

   4. PPP

8. What is the maximum number of interfaces that can be added to an MLPPP bundle?

   1. 8

   2. 6

   3. 16

   4. 4

9. What is the default clocking mode on a serial interface?

   1. DCE

   2. Internal

   3. Loop

   4. DTE

10. Which CLI command would administratively disable the fe-0/0/0 interface?

    1. no shutdown

    2. set interface fe-0/0/0 disable

    3. deactivate interface fe-0/0/0

    4. disable interface fe-0/0/0

11. True or False: all Juniper Networks routers contain an fxp0 OoB management interface.

12. Which type of interface would be used to create a GRE tunnel?

    1. gre

    2. tunnel.0

    3. gr

    4. ip.0