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1 using the discussion of circuit-switching in chapter 8 explain why this type of switching was chosen for telephone
1 in chapter 8 we learned that a circuit-switched network needs end-to-end addressing during the setup and teardown
1 what type of topology is used when customers in an area use dsl modems for data transfer purposes explain2 what are
1 compare the medium of a wired lan with that of a wireless lan in todays communication environment2 explain why the
1 compare a piconet and a scatternet in the bluetooth architecture2 can a piconet have more than eight stations
1 fill in the blanks the 835 mhz bandwidth in bluetooth is divided into channels each of mhz2 what is the spread
1 what mac protocol is used in the baseband layer of bluetooth2 what is the role of the l2cap layer in bluetooth3 in an
1 a bss id bssid is a 48-bit address assigned to a bss in an 80211 network do some research and find what the use of
in an 80211 network assume station a has four fragments to send to station b if the sequence number of the first
in an 80211 network three stations a b and c are contending to access the medium the contention window for each station
1 what do we mean when we say that a link-layer switch can filter traffic why is filtering important2 which one has
figure 1523 shows the frame format of the baseband layer in bluetooth 80215 based on this format answer the following
1 what is the relationship between a base station and a mobile switching center2 what are the functions of a mobile
1 what is the relationship between d-amps and amps2 what is gsm3 what is the function of the cdma in is-954 what are
1 what is a footprint2 what is the relationship between the van allen belts and satellites3 compare an uplink with a
1 draw a cell pattern with a frequency-reuse factor of 52 draw a cell pattern with a frequency-reuse factor of 33 what
1 how does a vlan save a company time and money2 how does a vlan provide extra security for a network3 how does a vlan
1 how is a repeater different from an amplifier2 what do we mean when we say that a switch can filter traffic why is
1 if a label in a connection-oriented service is 8 bits how many virtual circuits can be established at the same time2
1 list four types of delays in a packet-switched network2 in figure 1810 assume that the link between r1 and r2 is
an isp is granted the block 807056021 the isp needs to allocate addresses for two organizations each with 500 addresses
an organization is granted the block 130560016 the administrator wants to create 1024 subnetsa find the number of
1 explain how dhcp can be used when the size of the block assigned to an organization is less than the number of hosts
assume router r2 in figure 1835 receives a packet with destination address 14024742 how is the packet routed to its
1 can the value of the header length field in an ipv4 packet be less than 5when is it exactly 52 a host is sending 100