Unit 13 Product description 13.1 Comparing products (1)Vocabulary Match the adjectives in column to their opposites in column B like this:

Must choose routes for various origin destination pairs(O/D pairs) or for various sessions - Datagram routing: route chosen on packet by packet basis Using datagram routing is an easy way to split paths Virtual circuit routing: route chosen a session by session basis Static routing: route chosen in a prearranged way based on O/D pairs Eytan Modiano

2. 1 Saying what you do Fill in the blanks with a or an supervisor 6 manager 7 (2)Ⅴ tabular Look at the picture and label them with the job titles in the box ales manager

Broadcast Routing Route a packet from a source to all nodes in the network Possible solutions: Flooding: Each node sends packet on all outgoing links Discard packets received a second time Spanning Tree Routing: Send packet along a tree that includes all of the nodes in the network

Queueing Systems Used for analyzing network performance In packet networks, events are random Random packet arrivals Random packet lengths While at the physical layer we were concerned with bit-error-rate, at the network layer we care about delays How long does a packet spend waiting in buffers

If the salinity(含盐量)of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation-conversion of liquid water to water vapour. In this manner,the salinity is increased, since the salts stay behind. If this is carried to the extreme,of course, white crystals of salt would be left behind; this, by the way,is how much of the table salt we use is actually obtained

Asthma accounts for >2 million emergency department Primary Therapy visits and 5000 to 6000 deaths annually in the United Orygen States, many occurring in the prehospital setting. Severe Provide oxygen to all patients with severe asthma, even those

How Might a mouse search a Maze for Cheese? heese · State Space Search? As a Constraint Satisfaction Problem? Goal-directed Planning As a rule or production System? What is missing? Ideas in this lecture Objective is to accumulate rewards rather than goal states Task is to generate policies for how to act in all situations rather than a plan for a single starting situation

ach year in the United States about 700 000 people of all Stroke Recognition and EMS Care ages suffer a new or repeat stroke. Approximately 158 000 of these people will die, making stroke the third Stroke Warning Signs eading cause of death in the United States . Many advances important because

asic life support(BLS)includes recognition of signs of means that in the first minutes after collapse the victims sudden cardiac arrest(SCA), heart attack, stroke, and chance of survival is in the hands of bystander foreign-body airway obstruction(FBAO); cardiopulmonary Shortening the EMS response interval increases survival resuscitation (CPR); and d