发信人: gzbb2000(查十)
整理人: reynolds(2001-08-24 12:21:46), 站内信件
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21.Which statement is true?
A.While bridges are used to segment networks they will not isolate broadcast
or multicast packets
B.A bridge looks at every packet within its network segment and works like a
hub re broadcasting the packet if the destination is within its network
segment
C.A bridge maintains a table of the IP addresses of the hosts within its
network segment and forwards the packet directly to the destination based
upon the IP address
D.A bridge resets the hop count by keeping all packets within the network
segment Only packets addressed to a specific destination host outside the
network segment are allowed to pass through the bridge
Answer:A
*22.What is the most common Layer 2 device?
A.hub
B.router
C.switch
D.repeater
Answer:C
23.What is a function of a reliable transport layer connection?
A.route selection
B.acknowledgments
C.session checkpoints
D.system authentication
Answer:B
*24.Which two statements about a bridge are true? (Choose two )
A.A bridge floods multicasts
B.A bridge floods broadcasts
C.A bridge does not flood multicasts
D.A bridge does not flood broadcasts
Answer:A,B
25.Click the Exhibit button
Which statement about the specialized IP addresses shown in the
exhibit is true?
A.They are private IP addresses
B.They can be leased with DHCP
C.They are allocated for VolP franc
D.They represent IP classless addresses
E.They are used by the InterNIC for administration
Answer:A
26.During encapsulation in which order is information packaged?
A.data packet segment frame
B.segment data packet frame
C.data segment packet frame
D.packet data segment frame
Answer:C
*27.Which three basic switch functions increase available bandwidth on
the networks (Choose three )
A.loop avoidance
B.address learning
C.hop count limiting
D.broadcast filtering
E.packet forward/filtering
Answer:A,D,E
*28.What is NOT a characteristic of a network segment on a switch?
A.The segment has its own collision domain
B.The segment can translate from one media to a different media
C.All devices in the segment are pad of the same broadcast domain
D.One device per segment can concurrently send frames to the switch
Answer:B
29.Which three are typical operational phases in a basic connection
oriented network service? (Choose three )
A.call setup
B.data transfer
C.load balancing
D.call termination
E.call prionflication
F.data segmentation
G.data link identification
Answer:A,B,D
30.Your network uses a Class C address of 210.10.10.0 You must now
split up the network into separate shores to handle multiple buildings
separated by routers Which two steps must you take to determine the
proper shored mask for your networks (Choose two )
A.determine the number of separate networks required
B.determine how many devices will require DHCP addressing
C.determine the maximum number of hosts that will be on each shored
D.determine the minimum number of hosts that will be on each shored
E.determine which router will be the IP default gateway for each shored
Answer:A C
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