发信人: michlu()
整理人: firphoenix(2001-10-28 22:28:03), 站内信件
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1. You intend to configure your ISDN router to be ena
bled for back-up at 45%. You also intend the back-up connection to rem
ain up indefinitely. What command will you enter?:
2. What is the default Administrative Distance for EI
GRP (internal)?
3. What type of Link State Advertisement describes a
set of routers attached to a particular network and are flooded within
the area that contain the network?
a) Router Link
b) Network Link
c) Summary Link
d) Autonomous Link
4. Match the following LSA Types to their correct nam
es:
a) Type 1 I)
Summary Link
b) Type 2 ii)
Autonomous System External
c) Type ¾ iii)
Router Link
d) Type 5 iv)
Network Link
5. Enter the command to verify the IPX neighbours dis
covered by EIGRP?
6. What command would prevent a router from establish
ing a neighbour adjacency with a router connected to the same link as
that specified in the command?
7. What command is required on all RIP/IGRP routes th
at must use a default route?
8. What does the value “94” represent in the “fair
-queue 94” command?
a) Process-threshold
b) Congestive-threshold
c) Congestive-discard-threshold-number
d) Congestive-process-discard-threshold
9. Which of the following IP addresses could be class
ed as a private address:
a) 172.16.8.0
b) 172.30.0.0
c) 172.15.30.0
d) 172.32.0.0
e) 172.160.0.0
10. In which table is the feasible successor route kept?
a) Routing table
b) Neighbor table
c) Topology table
d) Successor table
e) Back-up table
11. You need to configure an alternative to Access-Lists
for the address 193.145.34.16/0 that will save CPU cycles. What comman
d would you enter?
12. Name the two default criteria EIGRP uses for determin
ing it’s metric.
a) Reliability
b) Bandwidth
c) Loading
d) Delay
e) MTU
13. List two ways IPX/SPX may be routed over a WAN connec
tion.
14. You wish to telnet into a Cisco 2501 from a device lo
cated on network 191.69.33.0 . The standard Access-List permitting tra
ffic onto the Ethernet I/F for this address has been created on the 25
01. What two other commands are needed to complete the process?
15. What command must be issued to all routers within an
Area to define the Area as Stubby?
16. What items are kept in the EIGRP Neighbor Table? Sele
ct four.
a) Queue
b) Destination address
c) Trigger time
d) Time trip (TT)
e) Smooth Round Trip Time (SRTT)
f) Neighbor address
g) Source address
h) Hold time
17. Name two techniques, other than Access-lists or Passi
ve-Interface, to disable routing updates across an ISDN link.
18. What command must you issue on the ABR to define the
Area as Totally Stubby?
19. Link State routing can be used with Snapshot routing
– True or False?
20. What command would you enter to spoof a periodic NetW
are protocol query for inactive workstations?
21. After receiving a multicast LSU packet, the Designate
d router floods the LSU across the network. What multicast address doe
s it use?
a) 224.0.0.3
b) 224.0.0.1
c) 224.0.0.5
d) 224.0.0.9
e) 224.0.0.6
22. Name three features of Snapshot routing:
a) Irregular Routing updates
b) Hub and Spoke network
c) “Quiet Periods”
d) Link State routing
e) Meshed Network
f) Regular updates
23. How does OSPF use the Dijkstra algorithm to select th
e best route?
a) Hop Counts
b) Calculate least bandwidth between location router a
nd destination router
c) Calculate least delay between location router and d
estination router
d) Adds up the total cost between location router and
destination router
e) Calculate the nearest adjacency between location ro
uter and destination router
24. What is the type of Bridging developed by IBM for us
e in Token Ring Networks?
a) Encapsulated
b) SRB
c) IRB
d) Transparent
e) SRB Transparent
f) SRB Translational
25. List three items that are incorrect with this command
syntax-
Priority list 18 protocol IP normalise TCP 23
26. Name three principal components that make up OSPF Mul
ti-areas?
27. What command would you issue to display the contents
of the topological database, which would provide the Router ID and Pr
ocess ID?
28. This ISDN point references the connection between the
NT1 and the ISDN network?
a) R
b) S
c) T
d) U
29. I have a network address of 170.18.32.0/27. How many
subnets and hosts will I be able to utilise?
30. What is the routing protocol for AppleTalk and how fr
equent does it update?
31. What type of BGP session occurs between routers in di
fferent AS, which are normally adjacent?
32. Calculate the route summarisation for a router table
containing the following addresses:-
156.109.8.0/22 156.109.16.0/22 156.109.20.0/22
156.109.24.0/22 156.109.28.0/22 156.
109.32.0/22
33. What command would you use to configure the selected
network 6d as the default network?
34. What protocol carries BGP sessions?
a) IP
b) IPX
c) UDP
d) TCP
35. What three elements are inherent in Dialer Profiles
a) Dialer map class
b) Dialer threshold
c) Dialer load
d) Dialer interface
e) Dialer snapshot
f) Dialer backup
g) Dialer pool
36. You wish to verify the ‘hello interval’ and know n
eighbor adjacencies what command would use?
37. Name three advantages which separating a large AS int
o smaller areas would bring?
38. After issuing the appropriate helper-address forwardi
ng command you now wish to specify only a NetBios datagram [138] broa
dcast packet. What command would you use?
39. Select four key parameters a router needs to route in
formation:
a) Eigrp Database
b) Metric
c) Possible routes
d) Cost
e) Source address
f) MAC address
g) Destination address
h) Best paths
40. What type of queuing method can you reserve a percent
age of bandwidth based on protocol and source interface?
41. Select three link state routing protocols
a) IP RIP
b) AppleTalk RTMP
c) IPX NLSP
d) IGRP
e) IP OSPF
f) IPX RIP
g) IS-IS
42. Where would you normally place your NAT routers?
a) Standard areas
b) Backbone areas
c) Stub areas
d) Totally stubby areas
43. What ISDN protocol set deals with concepts and termin
ology?
a) E series
b) I series
c) Q series
44. Enter the correct sequence of events to describe how
EIGRP discovers routes utilising the various key phrases
a) Update packets
b) Hello packets
c) Primary & backup router selection
d) Initialisation process
e) Ack packet
f) Topology table update
45. You want to instruct the router to issue SAP updates
only when a change occurs. In an EIGRP network what command would you
use?
46. You intend to evaluate a Wide Area Network, what are
four issues that must be considered:
a) Location
b) Routing protocol
c) Hardware type
d) Distance
e) Bandwidth
f) Ease of management
g) Cisco software 11.1 or greater
h) Cost
47. This type of LSA is originated by ABR’s and describe
s the links between the ABR and internal router of the local area;
a) Type 1
b) Type 2
c) Type ¾
d) Type 5
48. How many hello packets must a router fail to receive
to understand that it’s neighbor is unavailable:
a) 2
b) 3
c) 4
d) 5
e) 6
49. List two causes of network congestion
a) Network design issue
b) Inefficient routing protocol
c) Router memory
d) Bursty traffic
50. You attempt to configure a network routing IPX RIP an
d a network routing OSPF, but cannot complete the command why is that?
a) OSPF supports different metrics
b) OSPF does not support redistribution
c) OSPF does not support IPX/SPX stack
d) IPX/SPX does not support default routes
51. You organisation operates over two sites; the remote
site does not have routing capabilities and utilises bridge segmentati
on. What method of Bridging will you use to connect the central routed
site with the remote bridged site?
a) Transparent
b) Translational
c) SRB
d) IRB
e) SRB/ Transparent
f) SRB/Translational
52. You are required to configure a secure link from a Ci
sco 1603 across an ISDN line to a non-Cisco router. What type of encap
sulation protocol would you choose/
a) SLIP
b) AARP
c) HCLC
d) SDLC
e) PPP
f) LAPB
53. You have network 203.10.100.0 that you wish to hide.
All other routes are being advertised out of the S1. What three comma
nds should you issue to stop this address from being advertised?
54. You are configuring Primary rate ISDN utilising an E1
link connected to a pri-net5 switch. You now wish specify the slot fr
ame type. What command will you enter?
55. What specific command would you use to ascertain prot
ocol, frame type, Mac address and filters for a Bridging Virtual Inter
face 1 ?
56. From the following config script find 3 different err
or that may cause problems:
· Bridge 64 protocol ieee
· Bridge-group 64
· Bridge 64 priority 65343
· Bridge group 64 path-cost 25236
57. After redistributing your routes between 2 AS configu
red for IGRP and OSPF. You observer a routing loop .After creating a s
tandard access-list of redistributed routes you now wish to amend the
Administrative Distance of IGRP to resolve the routing loop. What comm
and would you enter?
58. In what state do the DR and BDR establish adjacencies
with each router in the network?
a) Init state
b) Full state
c) Acknowledge state
d) Start state
e) LSA state
f) Exstart state
g) Loading state
59. What new feature in Cisco 11.2 or later provided a me
chanism to aid control traffic volume for particular hosts/application
s:
a) BECN
b) RED
c) GTS
d) RAD
60. Name three key requirements for a scalable network.
a) Reachability
b) Efficiency
c) Manageable
d) Upgradeable
e) Adaptability
f) Responsiveness
g) Non-protocol specific
61. What command should I issue to observe the queuing st
atus of all interfaces
a) Show interfaces
b) Show queueing
c) Show custom-queue
d) Show queue all
e) Show queuing
62. You are required to configure a legacy DDR link. What
would be the first and minimal configuration to permit the line to be
brought up and begin packet transmission?
63. What command would you enter to determine whether rou
tes were being added or dropped from the route table?
64. You are required to configure CHAP authentication on
your ISDN connection. What command would you use together with two use
r defined variables?
65. This field is located in the IEEE802.5 header to dete
rmine through which Token rings network segments a packet must transmi
t?
a) RFC
b) RHC
c) RDI
d) RIF
e) RFI
f) RBHC
66. You need to bridge two token rings on separate networ
ks, the local ring is 502 and the target ring is 503, the Bridge numbe
r is 7. What command should you enter to bridge these networks?
67. What metric does NLSP use?
a) Cost
b) Bandwidth
c) Delay
d) Hop count
e) Load
68. What range of access-lists can be used for AppleTalk?
a) 200 - 299
b) 300 – 399
c) 400 – 499
d) 500 – 599
e) 600 – 699
f) 700 – 799
69. What type of bridging method would enable source rout
e stations to communicate with transparent bridge stations with the h
elp of an independent bridge which provides translation for the two br
idged protocols?
a) Transparent
b) Translational
c) SRB
d) IRB
e) SRB/ Transparent
g) SRB/Translational
70. You intend to create a default network for 194.105.15
7.0 . What command would you issue?
a) Route(config) # IP default-network 194.105.15
7.0
b) Route(config-if) # IP default-network 194.105
.157.0
c) Route# IP default-network 194.105.157.0
d) Route(config) # IP default network 194.105.15
7.0
71. What command would you enter to define an area (# 3)
as stubby?
a) Router(config)# area 3 stub no-summary
b) Router(config-router)# area 3 stub
c) Router(config-if)# area 3 stub
d) Router(config-router)# area 3 stub no-summary
72. Select three indications of a distance vector routing
protocol.
a) Uses the Dijskstra algorithm
b) Sends updated routing tables to neighbors
c) Uses cost as the metric value
d) Utilises hop count up to 255
e) Uses Bellman-Ford algorithm
f) Establishes an Adjacencies routing table
g) Receives routing tables from routers of 2 hops or m
ore away
h) Follows split horizon algorithm
73. I wish to modify the cost value assigned to an OSPF i
nterface to a value of 32656. How would I do this?
a) Router(config-if)# Ip ospf cost 32656
b) Router(config-if)# Ip-ospf cost 32656
c) Router(config-if)# Ip ospf-cost 32656
d) Router(config-router)# Ip ospf cost 32656
e) Router(config)# Ip ospf cost 32656
74. You have devised a custom queue list #36. You now wis
h to link the list with an interface. What command would use
a) Custom queue list 36
b) Custom-queue list 36
c) Custom-queue-list 36
d) Custom queue-list 36
75. What command would you enter to establish the primary
network number c2a that refers to your router while configuring NLSP
connectivity?
76. I need to understand how many hello’s, updates, quer
ies and acks I have received on my EIGRP network. What command can I u
se?
a) Show ip protocols
b) Show ip EIGRP topology
c) Show ip EIGRP neighbor
d) Show ip EIGRP traffic
e) Show ip EIGRP database
77. You wish to configure a loading threshold on your leg
acy DDR connection. This threshold will trigger another call to increa
se bandwidth. You require this call to be made at 100% load. What comm
and will you use?
a) dialer load-threshold 255 either
b) dialer threshold-load 255 either
c) dialer load threshold 100 either
d) dialer threshold-load 100 either
e) dialer loading-threshold 255 either
78. I need information on the virtual links in my OSPF ne
twork. What command shall I use ?
a) Show OSPF virtual-links
b) Show OSPF links
c) Show ip OSPF virtual
d) Show ip OSPF virtual-links
e) Show ip OSPF virtual links
f) Show OSPF virtual links
79. BGP makes it’s routing decisions based on network po
licy and not metrics? True or false?
80. How is ISDN basic rate commonly referred to as?
a) 2D+B
b) 2B D
c) 2 BD
d) 2B+D
81. How would you configure that network 194.105.159.0 wa
s part of the EIGRP AS?
a) Router(config-if) # Network ip eigrp 194.105.159.0
b) Router(config) # Network ip eigrp 194.105.159.0
c) Router(config-router) # Network ip eigrp 194.105.15
9.0
d) Router(config-router) # Network 194.105.159.0
82. What table includes route entries for all destination
s that the router has learned for each configured routing protocol?
a) Routing table
b) Topology table
c) Neighbor table
d) Successor table
e) Eigrp table
83. You need to display connected nodes on your NLSP rout
er, as well as the interface state. What command would you enter to vi
ew these?
84. When would you use BGP? Select one.
a) If you require quick and simple connection
b) Require a small routing table
c) Connect two ISP’s or more
d) Establish an autonomous system
85. This point references the connection to the customer
switching device or NT2.
a) R
b) S
c) U
d) T
86. This packet switched Wan protocol can be used to enca
psulate X25 and provides reliability and flow control on a point-to po
int line.
a) LAPD
b) LAPB
c) HDLC
d) SDLC
e) PPP
f) SLIP
87. You administer an IPX network, utilising EIGRP update
s. You wish to reduce SAP updates within AS 225. What command will you
use?
a) Router(config-if)# Ipx sap interval eigrp 225
b) Router(config-if)# Ipx sap-incremental eigrp 225
c) Router(config)# Ipx sap-incremental eigrp 225
d) Router(config-router)# Ipx sap incremental eigrp 22
5
88. Select three criteria that would meet the definition
of a Stub Area.
a) Accepts Type 5 LSA’s
b) Located in Area 0
c) Uses default route 0.0.0.0
d) Reduced routing table
e) A transit area for virtual links
f) Accepts type ¾ LSA’s
g) Has an ASBR attached
89. Which of the following guidelines for redistribution
of network routes would be safe to heed?
a) If using ASBR and require 2-way redistribution, do
not use default, filters or changed metric, this will lead to ‘black
holes’.
b) On your important network establish 2 way redistrib
ution
c) On a single internetwork, do not run differing prot
ocols
d) It is not essential to have in depth knowledge of y
our network
90. You are configuring your legacy DDR and wish to set t
he idle timeout of the line to 64 secs. Which command will you use?
a) Dialer idle timeout 64
b) Dialer timeout-idle 64
c) Dialer time idle 64
d) Dialer idle-timeout 64
91. On my eigrp network I need to view the active/passive
states of my routes, # of successors and feasible distance. How can I
do this?
92. On your ospf network, 194.105.158.0 255.255.255.224,
you want to instruct the ABR to summarise routes for area 2. What comm
and would do this?
a) Router(config)# area 2 range 194.105.158.0 255.255.
255.224
b) Router(config-if)# area 2 range 194.105.158.0 255.2
55.255.224
c) Router(config-router)# area 2 range 194.105.158.0 2
55.255.255.224
d) Router(config-router)# area range 194.105.158.0 255
.255.255.224 2
93. You are creating a dialer profile and now need to cre
ate the dialer interface. On this interface you need to input the foll
owing dialing information: Number to dial =761242; map class=crosshous
es. What would be the correct command to do this?
a) dialer class crosshouses number 761242
b) dialer pool 761242 class crosshouses
c) dialer-string 761242 class crosshouses
d) dialer profile 761242 class crosshouses
e) dialer-class crosshouses number 761242
94. What would be the consequence of an incorrectly confi
gured routing redistribution? Select one.
a) Increased traffic
b) Protocol variance
c) Inconsistent convergence time
d) Corrupt routing tables
95. This wan connectivity protocol provides a connectionl
ess packet service. It can use fibre or copper. It supports speeds of
44.7 mbps on DS3 lines.
a) X25
b) ATM
c) SMDS
d) SONET
e) Frame –relay
96. Select three criteria that meet the definition of a T
otally Stubby area.
a) Attached to area 0
b) Smaller routing table than stubby area
c) Accepts type ¾ LSA
d) Default summary link 0.0.0.0
e) Used as transit area for virtual links
f) Accepts Type 5 LSA
g) Does not accept type ¾ LSA
97. You wish to verify how many times the dialer string h
as been reached and information about the idle timer. What command wou
ld you use?
a) Show ISDN status
b) Show ISDN active
c) Show dialer
d) Show ISDN stats
e) Show dialer status
98. You wish to assign access-list 25 to filter incoming
routing updates on E1 interface. What is the correct command?
a) Router(config)# distribute-list 25 in e1
b) Router(config-router)# distribute list 25 in e1
c) Router(config)# distribute list 25 in e1
d) Router(config-router)# distribute-list 25 in e1
99. You wish to summarise a network in AS 8, for 195.104.
157.0 255.255.255.224 .What command will you use?
a) Router(config)#ip summary-address eigrp 8 195.104.1
57.0 255.255.255.224
b) Router(config-if)#ip summary address eigrp 8 195.10
4.157.0 255.255.255.224
c) Router(config-if)#ip summary-address eigrp 8 195.10
4.157.0 255.255.255.224
d) Router(config)#ip summary address eigrp 8 195.104.1
57.0 255.255.255.224
100. You want to configure a default route for your IPX netwo
rk #2110. What command to use?
a) Router(config)#ipx advertised-default route-only 21
10
b) Router(config-if)#ipx advertised-default-route-only
2110
c) Router(config)#ipx advertised default route only 21
10
d) Router(config)#ipx advertised-default-route-only 21
10
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