分类：
2008-10-06 17:31:57
I'm not responsible for
what you do with it.
Happy cheating ^^
Which network device creates the highest amount of latency?
*router
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Why do vendors utilize the OSI model when designing networking products?
*It ensures greater compatibility and interoperability with equipment from different vendors.
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Which type of address is 192.168.170.112/28?
*subnetwork address
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A router determines the path to deliver a packet. What layer of the OSI model does this fact represent?
network
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What are important characteristics to consider when purchasing a network interface card? (Choose two.)
*media used on the network
*system bus used on the computer
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Which subnet masks could be used when subnetting a Class B IP address? (Choose two.)
*255.255.255.240
*255.255.192.0
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Refer to the exhibit. The network administrator wants to create a subnet for the point-to-point connection between the two routers. Which subnetwork mask would provide enough addresses for the point-to-point link with the least number of wasted addresses?
*255.255.255.252
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Which characteristics are common to both UDP and TCP? (Choose two.)
*uses port numbers
*classified as a transport layer protocol
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Refer to the diagram. Which statements describe the transfer of data between Host A and the HTTP server? (Choose three.)
Host A uses UDP and creates a three-way handshake to synchronize sequence numbers. Window sizes are the same at the source and destination. The number of acknowledgments sent is less than or equal to the number of data segments received.
*Host A uses TCP and creates segments of data. Destination port numbers are assigned dynamically and the source port number will be fixed to 80.
*The transport layer is responsible for information flow control as well as establishing, maintaining, and terminating virtual connections between the client and server.
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Two peer hosts are exchanging data using TFTP. During the current session, a Cisco devices fails to arrive at the destination. Which statement is true regarding the retransmission of the Cisco devices?
*Cisco devices retransmission is controlled by the application.
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Which protocols are TCP/IP application layer protocols? (Choose two.)
*TFTP
*DNS
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Which of the following statements are correct about CSMA/CD? (Choose three.)
*It is a media access method used in LANs.
*When a device needs to transmit, it checks to see if the media is available.
*Only one device can successfully transmit at a time.
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Consider the networks shown in the exhibit. Host A is sending packets to host B. Which layer of the OSI model is being used when the router is making the calculated decision to determine which interface to send the packet out?
*network
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An Ethernet host receives a frame, calculates the FCS, and compares the calculated FCS to the FCS received in the frame. The host finds that the two FCS values do not match. What action will be taken by the host?
*
The host discards the frame.
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A computer technician is asked to make a network cable. One end of the cable is pinned as a
*to connect a switch to a switch
*to connect a hub to a switch
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Why would a company install a switch instead of a hub when building or expanding a corporate network?
*A switch provides more bandwidth by sending frames only out the port to which the destination device is attached. A hub sends the frame out all ports except the source port.
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Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables?
*The cable in Graphic A will produce more crosstalk.
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Refer to the topology in the graphic. Which characteristic does this type of topology possess?
*Communication continues in the event of a break in any one connection
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Refer to the exhibit. What kind of Ethernet cable is represented?
*straight-through cable
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Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication?
*00-08-A3-B6-CE-02
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A technician is testing connectivity between the devices using the ping command.
*The default gateway of Host A is incorrect.
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Refer to the exhibit. The physical documentation shows a portion of the internetwork of the ABC Company. Which segments will be free of collisions?
*segments 3, 4, and 5
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The ping command can be used to test connectivity between hosts. Which OSI model layers are verified by this test?
*Layers 1, 2 and 3***********
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Which physical network topology is easy to monitor and troubleshoot, easy to add new devices to as the network expands, but subject to complete failure when a central hub or switch ceases to work?
*star
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A network administrator has installed a 24 port switch and connected 10 computers with 10/100 NICs. If the NICs are operating at 100 Mbps, how much bandwidth is available for each computer to receive data?
*100 Mbps
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chinaunix网友2009-11-12 04:45:45
Please send me all CCNA tests module 4 ver. 3.1, I need it, Thanks. herooftimelink@gmail.com
