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problem1 we discuss security services only for smtp at the application layer are there any security services for other
problem1 compare and contrast pgp and smime what are the advantage and disadvantage of each2 if alice and bob are
problem1 host a and host b use ipsec in the transport mode can we say that the two hosts need to create a virtual
problem1 research and find three standards developed by itu-t2 research and find three standards developed by ansi3 eia
problem1 use the internet to find two examples of informational rfcs2 use the internet to find the rfc that discusses
problem1 use the internet to find the number of rfcs2 use the internet to find the subject matter of rfcs 2418 and
problem1 find the format of an icp packet encapsulated in a ppp frame include all fields their codes and their
problem1 ppp goes through different phases which can be shown in a transition state diagram find the transition diagram
problem1 an ethernet mac sublayer receives 42 bytes of data from the llc sublayer how many bytes of padding must be
problem1 show the bidirectional fsms for the simple protocol using piggybacking note that both parties need to send and
problemanswer the following questions related to the fsms for the selective-repeat protocol with m 7 bits figure 1333a
problemanswer the following questions related to the fsms for the go-back-n protocol with m 6 figure 1326a the sending
problem1 a sender sends a series of packets to the same destination using 5-bit sequence of numbers if the sequence
problem1 if you have access to a unix system find some information about the routed program how can this program help
problem1 cbt uses nine types of packets use the internet to find the purpose and format of each packet2 use the
problem1 does rpm actually create a shortest path tree explain what are the leaves of the tree2 use netstat to find if
problem1 answer the following questionsa what is the size of a general query message in igmpv3b what is the size of a
problem1 a multicast address for a group is 23224609 what is its 48-bit ethernet address for a lan using tcpip2 change
problem1 redraw the time-line diagram of that allow the server to delay acknowledgements and send one ack for each full
problem1 tcp is sending data at 1 megabyte per second if the sequence number starts with 7000 how long does it take
problema client uses tcp to send data to a server the data consist of 16 bytes calculate the efficiency of this
problemin a tcp connection the initial sequence number at the client site is 2171 the client opens the connection sends
problem1 the control field in a tcp segment is 6 bits we can have 64 different combinations of bits list some
problem1 if the value of hlen is 0111 how many bytes of option are included in the segment2 show the entries for the
problem1 one icmp message discussed reports a destination port unreachable error how can tcp detect the error in the