Options: a. Do not enter a value in the foreign key field of a child table if that value does not exist in the primary key of the parent table
b. Do not enter a value in the primary key field of chield table if that value does not exist in the primary key of the parent table
c. Do not enter a value in the foreign key field of a parent table if that value does not exist in the primary key of the child table
d. All of above
Options: a . bit - bytes - fields - record - file - database b . bit - bytes - record - field - file - database c . bytes - bit- field - record - file - database d . bytes -bit - record - field - file - database
You get a call from a network administrator who tells you that he typed the following into his router: Router(config)#router ospf 1 Router(config-router)#network 10.0.0.0 255.0.0.0 area 0 He tells you he still can't see any routes in the routing table. What configuration error did the administrator make?
Options: The wildcard mask is incorrect., The OSPF area is wrong., The OSPF Process ID is incorrect., The AS configuration is wrong.
Options: a. means do not change the value in the primary key field if that record has related records in another table
b. means change all the related records in child tables if the record in parent table is changed
c. Both of above
d. None of above
Which of the following is(are) true of system analysts?
Options: their responsibility is to analyze and design system software, they may be looked upon as an intermediary between users and programmers, they are heavily involved with the system-development life cycle, both (a) and (c)