JNCIA-ER Preassessment test Q&A scored 76% with these answers

Juniper Networks Enterprise Enterprise Routers Routers

Which JUNOS software feature forms the basis for JUNOScope? Which JUNOS software feature forms the basis for JUNOScope?

  A.      SDX A. SDX

  B.      J-Web B. J-Web

  C.      BSD Kernel C. BSD Kernel

  D.      JUNOScript D. JUNOScript

14.    Which additional boot device is available on a J4300 or J6300 router? 14. Which additional boot device is available on a J4300 or J6300 router?

  A.      USB A. USB

  B.      hard drive B. hard drive

  C.      LS-120 floppy disk C. LS -120 floppy disk

  D.      removable compact flash D. removable compact flash

p.61 P.61

    When using the J-Web interface to configure RIP, which two policies are automatically configured by the router? (Choose two.) When using the J-Web interface to configure RIP, which two policies are automatically configured by the router? (Choose two.)

  A.      Import policy to block RIP routes. A. Import policy to block RIP routes.

  B.      Import policy to block direct routes. B. Import policy to block direct routes.

  C.      Export policy to advertise RIP routes. C. Export policy to advertise RIP routes.

  D.      Export policy to advertise direct routes. D. Export policy to advertise direct routes.

P,351 P, 351

What are three characteristics of the JUNOS software? (Choose three.) What are three characteristics of the JUNOS software? (Choose three.)

  A.      Contains easy to read registry keys. A. Contains easy to read registry keys.

  B.      Contains a modular operating system. B. Contains a modular operating system.

  C.      Separate forwarding and control planes. C. Separate forwarding and control planes.

  D.      Single software train for all M,T and J-series routers. D. Single software train for all M, T and J-series routers.

p.43 P.43

JUNOS User Interfaces JUNOS User Interfaces

Installation and Initial Configuration Installation and Initial Configuration

During autoinstalltion, how many attempts are made to retrieve the hostname.conf file? During autoinstalltion, how many attempts are made to retrieve the hostname.conf file?

  A.      1 A. 1

  B.      2 B. 2

  C.      3 C. 3

  D.      4 D. 4

p.179 P.179

Which represents a valid method for obtaining an IP address during an autoinstallation process? Which represents a valid method for obtaining an IP address during an autoinstallation process?

  A.      RIP A. RIP

  B.      BGP B. BGP

  C.      OSPF C. OSPF

  D.      DHCP D. DHCP

D. D.

What is one way to activate the rescue configuration on a J-series router? What is one way to activate the rescue configuration on a J-series router?

  A.      Issue the load rescue command. A. Issue the load rescue command.

  B.      Issue the activate rescue command. B. Issue the activate rescue command.

  C.      Press the rescue button for less than 5 seconds. C. Press the rescue button for less than 5 seconds.

  D.      Press the configuration button for less than 5 seconds. D. Press the configuration button for less than 5 seconds.

p.57 P.57

Operational Monitoring and Maintenance Operational Monitoring and Maintenance

  Which CLI command displays any active alarms on the router? Which CLI command displays any active alarms on the router?

  A.      show system alarms A. show system alarms

  B.      show chassis alarms B. show chassis alarms

  C.      show system environment C. show system environment

  D.      show chassis environment D. show chassis environment

p.246 P.246

16.    Which J-Web window pane allows you to view and manage licenses? 16. Which J-Web window pane allows you to view and manage licenses?

  A.      Monitor A. Monitor

  B.      Manage B. Manage

  C.      Diagnose C. Diagnose

  D.      Configuration D. Configuration

P,284 P, 284

24.    Which J-Web menu displays the hardware currently installed in the router? 24. Which J-Web menu displays the hardware currently installed in the router?

  A.      Monitor > Chassis A. Monitor> Chassis

  B.      Diagnose > Chassis B. Diagnose> Chassis

  C.      Diagnose > Hardware C. Diagnose> Hardware

  D.      Monitor > Environment D. Monitor> Environment

Which J-Web menu displays the amount of free space on the router's compact flash? Which J-Web menu displays the amount of free space on the router's compact flash?

  A.      Monitor > Flash A. Monitor> Flash

  B.      Diagnose > Flash B. Diagnose> Flash

  C.      Monitor > System C. Monitor> System

  D.      Manage > System D. Manage> System

p.244 P.244

Based on these parameters, which type of ping packet will be sent? Based on these parameters, which type of ping packet will be sent?

  A.      one packet with payload of 1200 data bytes and with the do not fragment bit set A. one packet with payload of 1200 data bytes and with the do not fragment bit set

  B.      one packet with payload of 1200 data bytes and the record route option set B. one packet with payload of 1200 data bytes and the record route option set

  C.      1200 packets with a destination ip address of C. 1200 packets with a destination ip address of 10.0.1 10.0.1 .201 .201

  D.      one packet with a source ip address of D. one packet with a source ip address of 10.0.1 10.0.1 .201 and a TTL value of 32 .201 And a TTL value of 32

19.    What is the JUNOS software term for decoding protocol packets? 19. What is the JUNOS software term for decoding protocol packets?

  A.      dump A. dump

  B.      stat B. stat

  C.      trace C. trace

  D.      debug D. debug

Routing Protocols and Policy Routing Protocols and Policy

12.    Which statement describes the function of a routing policy? 12. Which statement describes the function of a routing policy?

  A.      It controls the size of routing protocol packets. A. It controls the size of routing protocol packets.

  B.      It allows routing protocols to be auto configured. B. It allows routing protocols to be auto configured.

  C.      It allows for the configuration and management of user persmissons. C. It allows for the configuration and management of user persmissons.

  D.      It controls routing information transferred in and out of the routing table. D. It controls routing information transferred in and out of the routing table.

p.316 P.316

13.    What are three protocol limitations of RIP? (Choose three.) 13. What are three protocol limitations of RIP (Choose three.)

  A.      It has a maximum network diameter. A. It has a maximum network diameter.

  B.      It can only be used on broadcast links. B. It can only be used on broadcast links.

  C.      It will count to infinity and slow down loop prevention. C. It will count to infinity and slow down loop prevention.

  D.      It will send periodic updates of the entire routing table. D. It will send periodic updates of the entire routing table.

p.348 P.348

15.    Where do you configure a RIP neighbor in the CLI? 15. Where do you configure a RIP neighbor in the CLI?

  A.      under [routing rip neighbor] A. under [routing rip neighbor]

  B.      under [protocols rip neighbor] B. under [protocols rip neighbor]

  C.      under [routing rip group "group-name" neighbor] C. under [routing rip group "group-name" neighbor]

  D.      under [protocols rip group "group-name" neighbor] D. under [protocols rip group "group-name" neighbor]

p.316 P.316

17.    Which type of policy allows RIP routes to be placed into OSPF? 17. Which type of policy allows RIP routes to be placed into OSPF?

  A.      RIP import policy A. RIP import policy

  B.      RIP export policy B. RIP export policy

  C.      OSPF import policy C. OSPF import policy

  D.      OSPF export policy D. OSPF export policy

18.    What are two action types in the Juniper routing policy? (Choose two.) 18. What are two action types in the Juniper routing policy? (Choose two.)

  A.      sorting A. sorting

  B.      ee-writing B. ee-writing

  C.      terminating C. terminating

  D.      flow control D. flow control

p.316 P.316

25.    Which CLI command displays routes received from a RIP neighbor? 25. Which CLI command displays routes received from a RIP neighbor?

  A.      show rip route "neighbor" A. show rip route "neighbor"

  B.      show rip receive-route "neighbor" B. show rip receive-route "neighbor"

  C.      show route protocol rip "neighbor" C. show route protocol rip "neighbor"

  D.      show route receive-protocol rip "neighbor" D. show route receive-protocol rip "neighbor"

20.    Why would you apply an export policy to a routing protocol? 20. Why would you apply an export policy to a routing protocol?

  A.      to allow a route to be accepted into your routing table A. to allow a route to be accepted into your routing table

  B.      to allow a route to be advertised out of your routing table B. to allow a route to be advertised out of your routing table

  C.      to allow a route to have a higher metric in your routing table C. to allow a route to have a higher metric in your routing table

  D.      to allow a route to be be rejected from entering your routing table D. to allow a route to be be rejected from entering your routing table

21.    Why would you apply an import policy to a protocol? 21. Why would you apply an import policy to a protocol?

  A.      to restrict traffic that enters your router A. to restrict traffic that enters your router

  B.      to redistribute routes between protocols B. to redistribute routes between protocols

  C.      to modify route properties in routes you send to other routers C. to modify route properties in routes you send to other routers

  D.      to modify route properties of routes received from other routers D. to modify route properties of routes received from other routers

23.    Which CLI command displays all static routes in the routing table? 23. Which CLI command displays all static routes in the routing table?

  A.      show static all A. show static all

  B.      show route static B. show route static

  C.      show static route C. show static route

  D.      show route protocol static D. show route protocol static

5.    Where do you configure static routes in the Junos CLI? 5. Where do you configure static routes in the Junos CLI?

  A.      under [static route] A. under [static route]

  B.      under [protocols static] B. under [protocols static]

  C.      under [policy-options static] C. under [policy-options static]

  D.      under [routing-options static] D. under [static routing-options]

6.    Which CLI command displays the current RIP configuration on a J-series router? 6. Which CLI command displays the current RIP configuration on a J-series router?

  A.      show protocols rip A. show protocols rip

  B.      show configuration rip B. show configuration rip

  C.      show rip configuration C. show rip configuration

  D.      show configuration protocols rip D. show configuration protocols rip

    Which tool can be used to verify that packets are using the correct path towards a given destination? Which tool can be used to verify that packets are using the correct path towards a given destination?

  A.      ping A. ping

  B.      netstat B. netstat

  C.      nslookup C. nslookup

  D.      traceroute D. traceroute

Which routing technology is often used when a customer is single-homed to a service provider? Which routing technology is often used when a customer is single-homed to a service provider?

  A.      RIP A. RIP

  B.      BGP B. BGP

  C.      Static C. Static

  D.      OSPF D. OSPF

Which CLI command displays the status of each operational OSPF link on the router? Which CLI command displays the status of each operational OSPF link on the router?

  A.      show ospf neighbor A. show ospf neighbor

  B.      show ospf adjacency B. show ospf adjacency

  C.      show ospf interface C. show ospf interface

  D.      show ospf statistics D. show ospf statistics

A JUNOS router has a packet filter configured under [edit firewall family inet]. Which two statements accurately reflect the operation of this packet filter? (Choose two.) A JUNOS router has a packet filter configured under [edit firewall family inet]. Which two statements accurately reflect the operation of this packet filter? (Choose two.)

  A.      It maintains protocol state. A. It maintains protocol state.

  B.      It does not maintain protocol state. B. It does not maintain protocol state.

  C.      It processes packets independently of a particular flow. C. It processes packets independently of a particular flow.

  D.      It processes packets within the context of a particular flow. D. It processes packets within the context of a particular flow.

Which three daemons are contained in the JUNOS software? (Choose three.) Which three daemons are contained in the JUNOS software? (Choose three.)

  A.      VPN A. VPN

  B.      Chassis B. Chassis

  C.      Management C. Management

  D.      Routing Protocol D. Routing Protocol

  Wrong (Iqbal Sajid)

Adaptive Services Adaptive Services

22.    Which protocol family must be configured on an interface to allow ICMP traffic to be received? 22. Which protocol family must be configured on an interface to allow ICMP traffic to be received?

  A.      ip A. ip

  B.      inet B. inet

  C.      icmp C. icmp

  D.      management D. management

Which major J-Web menu should you use to send an ICMP echo request packet to a neighboring router? Which major J-Web menu should you use to send an ICMP echo request packet to a neighboring router?

  A.      Monitor A. Monitor

    B.      Manage B. Manage

  C.      Diagnose C. Diagnose

  D.      Configuration D. Configuration