Suppose you have two tables: Table Product: PROD_ID PROD_NAME PROD_PRICE PROD_VENDOR
1101 Table 100 2
1102 Chair 80 3
1103 Armchair 90 2
1104 Nightstand 110 1
1105 Bed 200 3
1106 Dresser 150 3
1107 Daybed 190 2

Table Vendor:
VEND_ID VEND_NAME VEND_ST
1 Green Way Inc GA
2 Forrest LLC NC
3 AmeriMart NC

Required:
a. Identify primary and foreign keys for each table
b. Create tables using SQL.

Look at the far left lane in the picture. explain what the red car is doing and what it needs to do to travel safely.

Consider a slotted aloha system, where the time slot equals the fixed duration of each packet. assume that there are 4 stations a,b,c,d sharing the medium. (a) stations a,b,c,d receive one packet each from higher layers at times 1.3, 1.5, 2.6,5.7 respectively. show which transmissions take place when, according to the slottedaloha protocol; describe all transmissions until all four packets have been successful.when needed, each station has access to the following sequence of random number, provided by a random number generator and drawn uniformly between 0 and 1: (1) station a draws numbers: 0.31, 0.27, 0.78, 0.9, 0.9, 0.11, 0. (2) station b draws numbers: 0.45, 0.28, 0.11, 0.83, 0.37, 0.22, 0. (3)station c draws numbers: 0.1, 0.2, 0.3, 0.4, 0. (4) station d draws numbers: 0.36, 0.77, 0.9, 0.1, 0.1, 0.1, 0.1, 0. (b) in slotted aloha, a station transmits in each time slot with a given probability. what probabilities would you assign to each of the four stations so as to: (i) maximize the efficiency of the protocol? (ii) maximize fairness among the four stations? (c) will the efficiency increase or decrease if we modify slotted aloha as follows: (i) get rid of slots and allow stations to transmit immediately? (ii) implement carrier sensing? (iii) implement collision detection? (iv) implement collision avoidance?

Which syntax error in programming is unlikely to be highlighted by a compiler or an interpreter? a variable name misspelling a missing space a comma in place of a period a missing closing quotation mark