1.Which BGP attribute is used, by default, only when multiple routes arrive from the same neighboring
AS?
A.Local Preference
B.MED
C.AS Path
D.Origin

2.How many route entries are advertised in a single RIPv2 Response message when MD5 authentication is used in the network?
A.23
B.24
C.25
D.26

3.Which interface name correctly represents an Ethernet interface that is located in port 2 on a PIC
that is in slot 3 of the FPC, which is in slot 4 in the chassis?
A.fe-2/3/4
B.fe-4/3/2
C.fe-2/4/3
D.fe-3/4/2

4.How are RIPv2 Response messages advertised, by default?
A.Unicast
B.Multicast
C.Broadcast
D.Anycast

5.You are using an MPLS network to support Layer 3 ×××s. By default, which routing table is
used to store information in this environment?
A.inet.3
B.mpls.0
C.bgp.l3vpn.0
D.bgp.l2vpn.0
 
6.By default, how many next-hop entries are placed into the forwarding table for each valid route?
A.1
B.2
C.3
D.4
7.How many prefixes will match route-filter 192.168.0.0/16 upto /17?
A.1
B.2
C.3
D.4

8.Which software process is responsible for operating all routing protocols?
A.mgd
B.chassisd
C.rpd
D.pfed

9.What is the largest usable metric allowed in a RIP Response message?
A.10
B.15
C.20
D.25

10.Which PIM interface mode must be used in an Auto-RP environment?
A.Sparse mode
B.Dense mode
C.Sparse-dense mode
D.Dense-sparse mode

11.What OSPF adjacency state is a router in after it receives a hello packet with its own router ID
listed as a neighbor?
A.Init
B.Start
C.Down
D.2-Way
 
12.Which command allows you to view the networks advertised by each router in the OSPF area?
A.show ospf neighbor
B.show ospf database detail
C.show ospf interface
D.show ospf statistics

13.What ASIC is responsible for creating J-cells?
A.PIC I/O Manager ASIC
B.I/O Manager ASIC
C.Distributed Buffer Manager ASIC
D.Internet Processor ASIC

14.What are the criteria for the election of the Designated Intermediate System (DIS) on a broadcast link?
A.Highest priority followed by highest MAC address
B.Lowest priority followed by highest MAC address
C.Highest priority followed by lowest MAC address
D.Lowest priority followed by lowest MAC address

15.What protocol family correctly configures an interface to support IS-IS within the JUNOS
software?
A.iso
B.isis
C.clns
D.clnp

16.What CLI command allows the router to use all configuration changes you enter?
A.commit
B.rollback
C.save filename
D.load filename
 
17.Which configuration statement best summarizes the following routes and allows the router to
forward IP traffic to the configured route?
172.16.13.0 /24
172.16.64.0 /19
172.16.32.0 /21
172.16.52.9 /32
A.set aggregate route 172.16.0.0/17
B.set aggregate route 172.16.0.0/18
C.set generate route 172.16.0.0/17
D.set generate route 172.16.0.0/18

18.By default, an IS-IS router will export which of the following routes from the routing table?
A.All Direct routes matching the IS-IS configuration
B.All IGP routes, including OSPF
C.All active routes in inet.0
D.No routes will be exported.

19. What protocol is used in a multicast network for communications between the hosts and the
routers?
A. ICMP
B. IGMP
C. IRDP
D. IGRP

20. An IS-IS router uses which circuit ID to represent the loopback interface of the router?
A. 0x00
B. 0x01
C. 0x02
D. 0x03

21. What PIM state describes a source of 172.16.1.1 for the 228.202.100.1 /32 multicast group
address?
A. (228.202.100.1, 172.16.1.1)
B. (228.202.100.1, 172.16.1.1, *)
C. (172.16.1.1, 228.202.100.1)
D. (*, 172.16.1.1, 228.202.100.1)
 
22. How would you get a Juniper Networks router to advertise IS-IS routes to an OSPF neighbor?
A. Configure an import policy under [edit protocols ospf] that matches IS-IS routes
and accepts them.
B. Configure an export policy under [edit protocols ospf] that matches IS-IS routes
and accepts them.
C. Configure an import policy under [edit protocols isis] that matches IS-IS routes
and accepts them.
D. Configure an export policy under [edit protocols isis] that matches IS-IS routes
and accepts them.

23. Where does a BGP router store information it should advertise to an EBGP peer?
A. Adjacency-RIB-In
B. Local-RIB
C. Forwarding-RIB
D. Adjacency-RIB-Out

24. You would like to implement a firewall filter to affect transit user traffic. On which interface
should you apply the filter?
A. lo0.0
B. fxp0.0
C. fxp1.0
D. fe-0/0/0.0
25. Which firewall filter action drops packets that match a term and returns an ICMP message to the
source of the packet?
A. accept
B. discard
C. dismiss
D. reject

26. Which of the following routers advertises a Type 7 LSA?
A. ABR
B. ASBR
C. DR
D. BDR
 
27. Which BGP attribute is set by the router that first announces a route and denotes the source of
that route?
A. Local Preference
B. Origin
C. MED
D. AS Path

28. Which Juniper Networks router component is responsible for implementing a firewall filter?
A. PIC I/O Manager ASIC
B. I/O Manager ASIC
C. Distributed Buffer Manager ASIC
D. Internet Processor ASIC

29. An interface has multiple IP addresses configured within the same subnet. Which of the following
statements is true concerning the interface’s preferred address?
A. It is the highest numbered address on the interface.
B. It is the lowest numbered address on the interface.
C. Each configured address is considered to be the preferred address.
D. There is no preferred address.

30. What does an MPLS label value of 3 mean?
A. IPv4 Explicit NULL
B. Router Alert
C. IPv6 Explicit NULL
D. Implicit NULL

31. Which protocol can be used to set up a dynamic LSP using an explicit network path?
A. IGP
B. LDP
C. BGP
D. RSVP

32. Which of the following is a valid NET address?
A. 49.0001.1921.6800.1001.01
B. 49.1000.1111.0001.1921.6800.1001.00
C. 49.abcd.efgh.1921.6800.1001.00
D. 49.abcd.1921.6800.1001.01
 
33. What are the methods used by RSVP to maintain an established LSP? (Choose two.)
A. It refreshes RSVP Resv messages upstream.
B. It refreshes RSVP Resv messages downstream.
C. It refreshes RSVP Path messages upstream.
D. It refreshes RSVP Path messages downstream.

34. Which operating system is the JUNOS software kernel based on?
A. Linux
B. FreeBSD
C. AIX
D. Solaris

35. What logical binary representation is useful for understanding the operation of a JUNOS software
route filter?
A. Route tree
B. Forwarding tree
C. Binary tree
D. Radix tree
 
           自测了一下，还是需要学习的，呵呵。长路漫漫阿。