@@QUES 010101 T/F Q,146,423,284,323
Do you think the following statement is true or false?

TCP/IP enables different types of machines in different environments to communicate with each other.
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1
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That's right.
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In fact, it does.
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The statement is true.

@@QUES 010102 Y/N Q,128,369,334,256
Do you think TCP/IP network architecture is independent of network type or vendor?
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1
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You're right.
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In fact, the answer is Yes.
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The answer is Yes.

@@QUES 010103 MXY Q,239,445,348,339
See if you can identify the advantage(s) of a routable protocol.
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Choose each appropriate item.
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You can reduce congestion by configuring devices on the internetwork
You can connect networks that use dissimilar data links, such as Ethernet, Token-Ring, and X.25
You can configure devices on an internetwork so that packets bypass links or nodes that become faulty
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1,2,3
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That's right.
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Partly right. All options are correct and are now highlighted.
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You have not chosen any correct options. All options are correct and are now highlighted.
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All options are correct and are now highlighted.

@@QUES 010104 Y/N Q,146,378,295,268
Do you think a network using TCP/IP is a packet-switched network?
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1
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You're right.
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In fact, it is.
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The answer is Yes.

@@QUES 010105 T/F Q,45,345,291,314
Do you think the following statement is true or false?

The OSI reference model describes a specific computer network.
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2
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That's right.
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Actually, the statement is false.
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The statement is false.

@@QUES 010201 T/F Q,144,396,303,321
Do you think that the following statement is true or false?

IP provides a connection-based delivery system, guaranteeing that the packets will arrive at their destination.
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2
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That's right.
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Actually, IP does not guarantee that packets will arrive at their destination.
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The statement is false.

@@QUES 010202 SXY Q,135,380,326,301
How do you think the integrity of the data contained in the IP packet is ensured?
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Choose an option from the list.
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By a lower-level protocol
By a higher-level protocol
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2
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That's right.
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That's not it. The correct option is now highlighted.
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The correct option is now highlighted.

@@QUES 010203 SXY Q,149,395,287,321
What do you think is the purpose of the Flags field?
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Choose an option.
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To control fragmentation of packets during transmission
To control packet sequencing
To identify the upper-layer protocols being used
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1
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That's right.
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That's not it. The correct option is now highlighted.
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The correct option is now highlighted.

@@QUES 010204 Y/N Q,218,382,322,285
Do you think the Header Checksum field confirms the integrity of the IP header and the data transmitted in the IP packet?
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2
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You're right.
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In fact, the answer is No.
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The answer is No.

@@QUES 010205 SXY Q,129,391,334,292
For which of the following do you think the information provided by ICMP messages can be used?
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Choose an option.
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Monitoring server processor usage
Recovering from network transmission problems
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2
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That's right.
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That's not it. The correct option is now highlighted.
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The correct option is now highlighted.

@@QUES 010206 Y/N Q,208,407,243,249
Do you think ICMP can identify routers on networks?
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1
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You're right.
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In fact, the answer is Yes.
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The answer is Yes.

@@QUES 010207 T/F Q,129,406,335,338
Do you think that the following statement is true or false?

IP acquires a host's hardware address by sending a request packet directly to the host with which it is trying to communicate.
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2
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That's right.
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Actually, it doesn't.
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The statement is false.

@@QUES 010208 DTF Q,322,454,299,330
Try to decide which option goes in which blank.

In effect, the ARP maps  _  addresses to  _  addresses.
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Choose an option to fill the first blank.
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Choose an option to fill the second blank.
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IP
%010hardware
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1
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That's right.
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In fact, it's the other way around.
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You've filled the first blank correctly, but not the second.
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You've filled the second blank correctly, but not the first.
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The full statement is now shown.

@@QUES 010209 DTF Q,149,407,295,339
Try to decide which option goes in which blank.

The Reverse Address Resolution Protocol (RARP) maps  _  addresses to  _  addresses.
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Choose an option to fill the first blank.
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Choose an option to fill the second blank.
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%010physical
%010Internet
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1
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That's right.
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In fact, it's the other way around.
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Incorrect.
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Incorrect.
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The full statement is now shown.

@@QUES 010301 SXY Q,122,405,350,301
What do you think happens if the network loses a TCP/IP packet during transmission?
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Choose an option from the list.
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The data is lost and unrecoverable
TCP retransmits the packet
The data has to be sent again by the application
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2
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You're right.
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That's not it. The correct option is now highlighted.
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The correct option is now highlighted.

@@QUES 010302 MXY Q,9,372,274,325
See if you can identify where overheads are incurred to ensure reliability when transmitting data.
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Choose each appropriate item.
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TCP Source Port and Destination Port fields
TCP header field
TCP Checksum field
Acknowledgements
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2,3,4
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That's right.
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Partly right. The correct options are now highlighted.
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You have not made any correct choices. The correct options are now highlighted.
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The correct options are highlighted.

@@QUES 010303 T/F Q,239,348,271,297
Do you think that the following statement is true or false?

TCP requires the recipient of data to acknowledge successful receipt.
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1
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That's right.
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Actually, the statement is true.
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The statement is true.

@@QUES 010304 SXY Q,137,398,334,325
Which type of acknowledgement do you think is used by TCP?
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Choose an option.
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An acknowledgement referring to the number of the last packet received
An acknowledgement referring to the number of the next packet due
An acknowledgement containing the numbers of packets received
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2
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That's right.
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That's not it. The correct option is now highlighted.
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The correct option is now highlighted.

@@QUES 010305 T/F Q,281,457,273,316
Do you think that the following statement is true or false?

Other protocols provide reliability mechanisms in addition to UDP.
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1
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That's right.
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Actually, they do.
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The statement is true.

@@QUES 010306 XYF Q,181,411,262,320
See if you can choose the correct option to fill the blank.

UDP allows several client applications with  _  IP addresses to use the same port number.
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Choose an option to fill the blank.
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%010the same
%010different
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2
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That's right.
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That's not it. The correct option is now highlighted.
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The full statement is now shown.

@@QUES 010307 SXY Q,150,404,287,299
How do you think a UDP packet travels to its destination?
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Choose an option.
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Encapsulated in an IP packet
In a TCP packet
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1
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That's right.
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That's not it. The correct option is now highlighted.
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The correct option is now highlighted.

@@QUES 010401 Y/N Q,107,357,293,264
Do you think you can execute remote commands while in FTP mode?
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1
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You're right.
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In fact, the answer is Yes.
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The answer is Yes.

@@QUES 010402 SXY Q,172,352,265,268
NFS uses which of the following protocols at the transport layer.
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Choose an option.
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TCP
UDP
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2
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That's right.
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That's not it. The correct option is now highlighted.
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The correct option is now highlighted.

@@QUES 010403 SXY Q,114,394,357,280
How do you think SMTP transmits data?
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Choose an option.
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By transmitting data from node to node until the destination node is reached
By transmitting data directly to the destination node
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1
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That's right.
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That's not it. The correct option is now highlighted.
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The correct option is now highlighted.

@@QUES 010404 T/F Q,151,368,312,309
Do you think the following statement is true or false?

Network administrators use the Telnet protocol to connect to other routers.
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1
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That's right.
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In fact, the statement is true.
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The statement is true.

@@QUES 010405 Y/N Q,137,395,323,268
Would you expect that all SNMP agents return the same information to managers?
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2
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That's right.
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In fact, they don't.
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The answer is No.

@@QUES 010101t MXY Q,0,0,350,350
Identify the feature(s) associated with TCP/IP.
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Choose each appropriate item.
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A TCP/IP network is scalable
TCP/IP is routable
Subnetworks can be added but this causes network disruption
A TCP/IP network can handle high error rates
TCP/IP architecture is independent of network type or vendor
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1,2,4,5
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25
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Correct.
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5 per correct decision
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Partly right. The correct options are now highlighted.
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You have not made any correct choices. The correct options are now highlighted.

@@QUES 010102t XYF Q,0,0,363,295
The TCP/IP protocol stack corresponds closely to  _  layers of the OSI model.
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Choose an option to fill the blank.
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%010the lower
%010the higher
%010to all
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3
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10
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Correct.
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Incorrect. The correct option is now highlighted.
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The full statement is now shown.

@@QUES 010103t MXY Q,0,0,288,333
Identify how the layers within the TCP/IP protocol stack operate.
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Choose each appropriate item.
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Each layer provides services to the layer beneath it
Each layer provides services to the layer above it
Each layer expects services from the layer below it
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2,3
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21
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Correct.
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7 per correct decision
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Partly right. The correct options are now highlighted.
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You have not made any correct choices. The correct options are now highlighted.

@@QUES 010201t XYF Q,0,0,254,303
The Internet Protocol (IP) provides  _  packet delivery between hosts.
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Choose an option to fill the blank.
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%010connection-based
%010connectionless
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2
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15
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Correct.
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Incorrect. The correct option is now highlighted.
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The full statement is now shown.

@@QUES 010202t SXY Q,0,0,343,329
What is the function of the Internet Control Message Protocol (ICMP)?
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Choose an option.
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It maps physical addresses to Internet addresses
It controls the flow of packets to the destination computer's buffers
It is used to send error and control messages between hosts and gateways
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3
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15
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Correct.
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Incorrect. The correct option is now highlighted.

@@QUES 010203t MXY Q,0,0,401,349
Identify some of the reason(s) why ICMP messages are sent.
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Choose each appropriate item.
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To establish whether another host is available
To determine which networker the host is attached to
To find out the physical address of another computer
To determine a router address on a directly attached subnetwork
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1,2,4
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24
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Correct.
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6 per correct decision
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Partly right. The correct options are now highlighted.
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You have not made any correct choices. The correct options are now highlighted.

@@QUES 010204t SXY Q,0,0,336,298
Which of the following protocols maps an IP or Internet address to a physical address?
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Choose an option.
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RARP
ICMP
ARP
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3
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15
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Correct.
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Incorrect. The correct option is now highlighted.

@@QUES 010205t T/F Q,0,0,372,325
Is the following statement true or false?

The term Local ARP is used to describe resolving an address when both the requesting host and the destination host share the same media or wire.
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1
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10
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Correct.
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Incorrect. The statement is true.

@@QUES 010301t XYF Q,0,0,302,298
TCP is a connection-oriented transport protocol that provides reliable  _  data transmission.
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Choose an option to fill the blank.
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%010half-duplex
%010full-duplex
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2
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15
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Correct.
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Incorrect. The correct option is now highlighted.
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The full statement is now shown.

@@QUES 010302t MXY Q,0,0,378,332
Identify the functions of TCP.
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Choose each appropriate item.
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Handshaking
Mapping MAC addresses to IP addresses
Packet sequencing
Flow control
Reporting failed network links
Error handling
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1,3,4,6
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24
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Correct.
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4 per correct decision
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Partly right. The correct options are now highlighted.
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You have not made any correct choices. The correct options are now highlighted.

@@QUES 010303t T/F Q,0,0,322,302
Is the following statement true or false?

TCP provides maximum reliability without reducing transmission performance.
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2
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10
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Correct.
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Incorrect. The statement is false. The reliability of TCP causes overheads that reduce transmission performance.

@@QUES 010304t DTF Q,160,390,325,303
The  _  refers to the fact that  _  is negotiated dynamically during the TCP session.
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Choose an option to fill the first blank.
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Choose an option to fill the second blank.
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%010window size
%010sliding window
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2
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Correct.
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15
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Incorrect. It's the other way around.
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0
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Incorrect.
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0
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Incorrect.
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0
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The full statement is now shown.

@@QUES 010305t SXY Q,0,0,405,296
When transmitting data what does window size mean?
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Choose an option.
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The destination computer's buffer size
The number of messages that can be transmitted to a destination computer before receiving an acknowledgement
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2
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15
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Correct.
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Incorrect. The correct option is now highlighted.

@@QUES 010306t SXY Q,0,0,375,318
When would you use UDP in preference to TCP?
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Choose an option.
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For session-based data transmission such as client-server applications
For critical services such as electronic mail
Where the reliability mechanisms of TCP are not necessary
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3
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15
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Correct.
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Incorrect. The correct option is now highlighted.

@@QUES 010307t XYF Q,0,0,396,286
Both TCP and UDP use  _  to pass information to the upper layers of the protocol stack.
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Choose an option to fill the blank.
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%010protocol numbers
%010port numbers
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2
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10
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Correct.
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Incorrect. The correct option is now highlighted.
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The full statement is now shown.

@@QUES 010401t MXY Q,183,409,241,350
Identify the application layer protocols that routers use.
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Choose each appropriate item.
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FTP
TFTP
SMTP
Telnet
NFS
SNMP
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2,4,6
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24
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Correct.
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4 per correct decision
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Partly right. The correct options are now highlighted.
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You have not made any correct choices. The correct options are now highlighted.

@@QUES 010402t XYF Q,0,0,311,291
Network administrators use the  _  protocol to connect to other routers.
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Choose an option to fill the blank.
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SMPT
NFS
Telnet
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3
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15
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Correct.
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Incorrect. The correct option is now highlighted.
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The full statement is now shown.

@@QUES 010403t SXY Q,0,0,332,301
Which application layer protocol allows routers to return management information?
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Choose an option.
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NFS
Telnet
SNMP
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3
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15
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Correct.
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Incorrect. The correct option is now highlighted.
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