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Monday, August 24, 2009

JNCIA-ER Preassessment New Exam!

1. Which J-Web menu should you use to view the router's "last known good" configuration? B

A. Configuration > View and Edit
B. Configuration > Rescue
C. Configuration > Rollback
D. Configuration > History

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

A. Monitor
B. Configuration
C. Diagnose
D. Manage

3. Which major J-Web menu should you use to view the physical hardware in the router?D

A. Manage
B. Diagnose
C. Configuration
D. Monitor

4. You are logged in to an M10i router as the lab user. The J-Web 8.0R2.8 package is located in your home directory.
Which CLI command would install the J-Web interface?C

A. load software jweb-8.0R2.8-signed.tgz
B. load software /home/lab/jweb-8.0R2.8-signed.tgz
C. request system software add jweb-8.0R2.8-signed.tgz
D. request system software add /home/lab/jweb-8.0R2.8-signed.tgz

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

A. Manage > System
B. Diagnose > Flash
C. Monitor > System
D. Monitor > Flash

6. What is the purpose of the services interface?A

A. Processes traffic using class-of-service.
B. Provides various layer 2 and layer 3 services.
C. Used to bundle Ethernet interfaces on M-series routers.
D. Allows for secure shell access to the router.

7. Which definition most accurately describes VRRP?A

A. An election protocol used to designate one of multiple routers as the master router, which serves as the forwarding next-hop for the LAN.
B. A virtual protocol which makes VPN communications possible.
C. A redundancy protocol used to identify the active WAN circuit.
D. A link-state routing protocol used in Ethernet environments.

8. Which three daemons are contained in the JUNOS software?BCD
There are 3 correct answers

B. Routing Protocol
C. Management
D. Chassis

9. Which two statements regarding the JUNOS software user authentication methods are correct?CD
There are 2 correct answers

A. Multiple users can authenticate using a common local user account.
B. Only one authentication method can be configured.
C. Multiple authentication methods can be configured.
D. All users must be configured locally on the router.

10. Which CLI command displays the hardware currently installed in the router?C

A. show chassis alarms
B. show system hardware
C. show chassis hardware
D. show system environment

11. Which statements are true regarding DHCP services and J-series routers?BC
There are 2 correct answers

A. J-series routers can operate as a DHCP-relay agent only.
B. J-series routers can operate as a DHCP server.
C. J-series routers can function as a DHCP-relay agent and DHCP server simultaneously.
D. J-series routers can relay DHCP requests from one LAN to another.

12. Which CLI command displays any active alarms on the router?B

A. show system alarms
B. show chassis alarms
C. show system environment
D. show chassis environment

13. Which configuration statement contacts a TACACS+ server when the primary RADIUS server is unreachable?C

A. [edit] system { authentication-order [ radius tacacs+ ]; }
B. [edit] authentication { login-order [ radius tacplus ]; }
C. [edit] system { authentication-order [ radius tacplus ]; }
D. [edit] authentication { login-order [ radius tacplus ]; }

14. What are three characteristics of the JUNOS software?ABC
There are 3 correct answers

A. Contains a modular operating system.
B. Separate forwarding and control planes.
C. Single software train for all M,T and J-series routers.
D. Contains easy to read registry keys.

15. What statements about ALGs are true?AC
There are 2 correct answers

A. ALGs monitor protocol exchanges and perform address and port translations within the payload for certain protocols.
B. ALGs allow the router to interact with layer 4 and above when performing translation services.
C. ALGs are required whenever NAT is used.
D. ALGs are only used when PAT is configured.

16. Which type of IGP should you use to achieve scalability in a large enterprise network?B

A. distance-vector protocol
B. link-state protocol
C. Bellman-Ford protocol
D. path-vector protocol

17. What are two services provided by the SDX?AC
There are 2 correct answers

A. customized firewall modifications
B. an XML interface for router configuration
C. usage tracking and accounting
D. secure remote access to the router

18. Which statements are true regarding the ASM?CD
There are 2 correct answers

A. The ASM supports only layer 3 services.
B. The ASM comes standard with all M7i and M10i routers.
C. The ASM supports the layer 2 and layer 3 service packages simultaneously.
D. The ASM is an option when ordering the M7i.

19. You have a router which does not have the J-Web interface installed by default.C
Which CLI command installs the J-Web package?

A. load system software jweb-8.0R2.8-signed.tgz
B. install package jweb-8.0R2.8-signed.tgz
C. request system software add jweb-8.0R2.8-signed.tgz
D. package add jweb-8.0R2.8-signed.tgz

20. Which VRRP configuration option monitors the state of an interface and is capable of initiating a change in mastership if the monitored interface goes down?C

A. snoop
B. monitor
C. preempt
D. track

21. Which JUNOS software feature forms the basis for JUNOScope?B

A. J-Web
B. JUNOScript
C. BSD Kernel

22. Which configuration option allows you to view autoinstallation messages?A

A. traceoptions
B. debug
C. view
D. decode

23. Which of the following address assignment options are available when configuring NAT?AB
There are 2 correct answers

A. Static
B. Dynamic
C. One-to-one
D. One-to-many

24. Within the J-Web initial setup wizard, which menu is used to configure the hostname of the router?A

A. Set Up
B. Interfaces
C. Users
D. Routing

25. Which MLPPP configuration statement determines the threshold for maintaining the state of an MLPPP bundle?B

A. link-limit
B. link-threshold
C. minimum-threshold
D. minimum-links

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

A. It has a maximum network diameter.

B. It can only be used on broadcast links.

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

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

27. What is the JUNOS software term for decoding protocol packets? 19. (c)

A. dump .

B. stat

C. trace

D. debug

28. Which CLI command displays all static routes in the routing table? (D)
A. show static all

B. show route static

C. show static route

D. show route protocol static

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

(C D)

A. Import policy to block RIP routes.
B. Import policy to block direct routes.
C. Export policy to advertise RIP routes.
D. Export policy to advertise direct routes.

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


A. It controls the size of routing protocol packets.
B. It allows routing protocols to be auto configured.
C. It allows for the configuration and management of user permissions.
D. It controls routing information transferred in and out of the routing table.

31. Which type of routing protocol is RIP?


A. link state
B. path vector
C. policy based
D. distance vector

32. Which routing technology is often used when a customer is single-homed to a service provider?(C)



C. Static


33. Which command configures a minimal SNMP Configuration? (C)

A. edit snmp community juniper
B. set snmp server version 2c
C. set snmp community juniper authorization read-only
D. snmp community juniper authorization read-only

34. Which protocol family must be configured on an interface to allow ICMP traffic to be received? (B)

A. ip

B. inet

C. icmp

D. management

Q35) which statements are true regarding DHCP services and J-series routers? (B, D)
A) J-series routers can operate as a DHCP-relay agent only.
B) J-series routers can operate as a DHCP server
C) J-series routers can function as DHCP-relay agent and DHCP server simultaneously
D) J-series routers can relay DHCP requests from one LAN to another

Q36). Which CLI command displays the current RIP configuration on a J-series router?(D)

A. show protocols rip
B. show configuration rip
C. show rip configuration
D. show configuration protocols rip

Q37) Which tool can be used to verify that packets are using the correct path toward a given destination? (D)
A) Ping
B) Netstat
C) Nslookup
D) Traceroute

Q38) What is one way to activate the rescue configuration on a J-series router?(D)
A. Issue the load rescue command.
B. Issue the activate rescue command.
C. Press the rescue button for less than 5 seconds.
D. Press the configuration button for less than 5 seconds.

Q39). Which type of policy allows RIP routes to be placed into OSPF?(C)
A. RIP import policy
B. RIP export policy
C. OSPF import policy
D. OSPF export policy

Q40). What are two action types in the Juniper routing policy? (Choose two.)(B,C)

A. sorting
B. ee-writing
C. terminating
D. modifying

Q41). Where do you configure a RIP neighbor in the CLI?(D)

A. under [routing rip neighbor]
B. under [protocols rip neighbor]
C. under [routing rip group "group-name" neighbor]
D. under [protocols rip group "group-name" neighbor]


  1. you made me fail the test !!! :(((((((((

  2. well this is just ur bad luck otherwise 15 of my friends including me successfully pass through this

  3. Although this is a useful dump, I don't think I would use it for the pre-assessment. If you can't pass the pre-assessment on your own, you don't stand much of a chance on the real exam.

  4. you r rite Brendan best of luck

  5. Not all the answers are correct.
    It is a good help.
    But use your brain.

  6. do pre-assessment questions come in real exam?

  7. non of these questions appear in real exam