Question Details

layers in the OSI model





1. The layers in the OSI model are:
a. Link, internet transport, session, application
b. Link, internet, transport, application
c. Physical, data link, network, transport, session, presentation,
application
d. Physical, network transport, session, application


2. A computer has just been rebooted. An application program has started,
and the application program needs to send an FTP packet to a server at IP
address 10.14.250.200. What is the first packet that the computer will send
on the network to accomplish this:
a. ARP
b. Whois
c. FTP
d. Rlogin


3. Two computers are communicating on a wide area network over a UDP
port. One computer is sending the contents of a large file to the other
computer. Network congestion has caused some packets to be delayed.
What will the TCP/IP network drivers do about the packet delay?
a. The receiving computer will request that the file transfer be restarted
b. The network drivers will assemble the packets into the proper order
c. The receiving computer will request the sending computer to retransmit
the delayed packets
d. Nothing


4. A station on a network is sending hundreds of SYN packets to a
destination computer. What is the sending computer doing?
a. Sending the contents of a large file to the destination computer
b. Attempting to establish a TCP connection with the destination
computer
c. Attacking the destination computer with a SYN flood
d. Transmitting streaming audio or video to the destination computer


5. The purpose of the NTP protocol is:
a. Transfer the contents of a file
b. Synchronization of computer clocks to a reference clock
c. A signaling protocol used for Voice over IP
d. Share file systems over a network





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