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折扣号考试22007-09-30 10:42:00

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Take Assessment - Voucher Exam - CCNA 4 WAN Technologies (Version 3.1)

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16
Which of the following represents a group of routers under a common administration and is required when configuring routing protocols such as EIGRP?
control group
autonomous system
corporate system
Domain Name System
local-area network
wide-area network

17
What are the effects of LAN segmentation using a switch? (Choose three.)
dedicated bandwidth between source and destinations
enlarged collision domains
decreased broadcast domains
increased number of collision domains
increased latency in the network

18
Which utility can be used to verify connectivity through all seven layers of the OSI model?
netstat
ping
Telnet
traceroute

19
Which of the following messages are sent from a DHCP server to a client during a successful configuration process? (Choose two.)
DHCPDISCOVER
DHCPOFFER
DHCPREQUEST
DHCPACK

20


The Cake router shown in the graphic has multiple RIP version 2 paths to the network attached to E0 of the Pie router. Which interface on the Cake router will be used to forward a packet from the 192.168.5.0 network to the 192.168.13.0 network?
E0
E1
S0
S1
It will load balance across S0 and S1.
It will load balance across S0, S1 and E1.

21
What is true about windowing?
It always requires separate acknowledgements for each segment sent.
It controls the amount of data that can be sent before acknowledgement is required.
It requires the sender to re-establish a connection if no acknowledgement is received.
It allows TCP/IP to measure transmitted data in segments.

22
Which functions are carried out by switches and bridges when building the CAM tables? (Choose three.)
builds the table using unknown source MAC addresses from received frames
builds the table using unknown destination MAC addresses from received frames
time stamps the entries for each address
time stamps the BPDU of each frame received
maps switch port numbers with the associated MAC address
maps switch port numbers with the associated network address

23
Which of the following is the ISDN Layer 2 signaling protocol?
BRI
PRI
LAPA
LAPD

24
Which of the following IP addresses are broadcast addresses if the subnet mask is 255.255.255.240? (Choose three.)
75.32.75.15
205.16.35.11
199.254.129.111
129.130.17.143
135.22.55.93
105.33.62.213

25
What is the function of the first phase of PPP negotiation?
link termination
authentication of communicating peers
link establishment and configuration
network layer protocol configuration

26
Which method does a router use to build a Frame Relay map?
ARP requests
RARP requests
Inverse RARP requests
Inverse ARP requests

27
Which methods do frame relay switches use to inform DTEs of congestion within the frame relay network?
CCP and LMI
CIR and LATE
DLCI and SPID
FECN and BECN

28
Given a router that has already been configured, what is the correct loading sequence when powering on?
bootstrap, RAM, operating system
bootstrap, configuration file, operating system
bootstrap, operating system, configuration file
operating system, configuration file, RAM

29
What is the purpose of the show cdp neighbors command?
to display a summary of the configurations of all directly attached Cisco devices
to display information about all Cisco devices that are directly connected to a local device
to display information about all Cisco networks in the WAN
to display addressing information about all remote routers
to display the names of all OSPF neighbors in the local area

30
Which component designates a device that is not compatible with ISDN and requires a terminal adapter?
NT1
NT2
TE1
TE2
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