(三) The M:N relationship between STUDENT and CLASS must be divided into two 1:M relationships through the use of the ENROLL entity; the ENROLL entity is________ . (A)weak (B)strong (C)optional (D)mandatory

(四) A microkernel is a kernel________ . (A) containing many components that are optimized to reduce resident memory size (B) that is compressed before loading in order to reduce its resident memory size (C) that is compiled to produce the smallest size possible when stored to disk (D) that is stripped of all nonessential components

(三) The M:N relationship between STUDENT and CLASS must be divided into two 1:M relationships through the use of the ENROLL entity; the ENROLL entity is________ . (A)weak (B)strong (C)optional (D)mandatory

其他試題

(三) The M:N relationship between STUDENT and CLASS must be divided into two 1:M relationships through the use of the ENROLL entity; the ENROLL entity is________ .
(A)weak
(B)strong
(C)optional
(D)mandatory