发信人: gzbb2000(查十)
整理人: reynolds(2001-08-24 12:21:46), 站内信件
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*11.Which command enables directly connected network 199.55.72.0
to be used by RIP?
A.Router(config router)# rip 199.55.0.0
B.Router(config router)# rip 199.55.72.0
C.Router(config router)# network 199.55.0.0
D.Router(config router)# network 199.55.72.0
Answer:D
12.What are the two primary operating modes for frame switching?
(Choose two )
A.full duplex
B.half duplex
C.CSMA/CD
D.cut through
E.fragmentation
F.store and forward
Answer:D,F
*13.What are four functions/characteristics of the network layer of the
OSI model? (Choose four )
A.It uses a two-part address
B.It maintains routing tables
C.It uses broadcast addresses
D.It establishes network addresses
E.It provides access to the LAN media
F.It provides media independence for upper layers
G.It provides path selection forInternetwork communication
Answer:A,B,D,G
*14.Which statement about an IP network is true?
A.A broadcast source MAC address contains all zeros
B.A MAC address is pad of the physical layer of the OSI model
C.MAC addresses are used by bridges to make forwarding decisions IP
addresses are used by routers
D.IP addresses allow a flat addressing scheme MAC addresses use a
hierarchical addressing scheme
Answer:C
*15.What is an advantage of local area network (LAN) segmentation?
A.smaller collision domains
B.elimination of broadcasts
C.decreased cost of implementation
D.larger number of users within the same domain
Answer:A
*16.What is a key use of a device hardware address?
A.to obtain a vendor code/serial number from the user
B.to transmit a frame from one Interface to another Interface
C.to transmit a packet from one local device to another local device
D.to transmit data from one local device to a remote device across an Internet
E.to contain logical information about the device to use for end to end
transmission
Answer:B
17.What is the protocol and what is the second pad of the following
network address?
172 16 0 254 mask - 255 255 0 0
A.IPX MAC address
B.IP Class C directed broadcast
C.Private IP address node number
D.Public IP address directed broadcast
E.Private IP address directed broadcast
Answer:C
*18.What is the result of segmenting a network with a router into
segments 1 and 2?
A.It increases the number of collisions
B.It decreases the number of broadcast domains
C.It connects segment 1 a broadcasts to segment 2
D.It prevents segment 1 a broadcasts from genre to segment 2
Answer:D
*19.What was the key reason the International Organization for
Standardization released the OSI model?
A.users could access network servers faster
B.different vendor networks could work with each other
C.the industry could create a standard for how computers work
D.network administrators could increase the overall speed of their network
Answer:B
20.Click the Exhibit button
The exhibit shows an IP address and its shored mask What is the
broadcast address for this IP shored?
A.172 20 7 255
B.172 20 7 197
C.172 20 7 191
D.172 20 7 129
E.172 20 255 255
Answer:A
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