Has-a relationships should never be encapsulated.
Has-a relationships should be implemented using inheritance.
Has-a relationships can be implemented using instance variables.
Is-a relationships can be implemented using the extends keyword.
Is-a relationships can be implemented using the implements keyword.
An array or a collection can be used to implement a one-to-many has-a relationship.
The relationship between Movie and Actress is an example of an is-a relationship.
第1题：
A. Four drives with RAID 0
B. Four drives with RAID 3
C. Four drives with RAID 5
D. Four drives with RAID 10
第2题：
A recently ordered server came standard with one 3.0GHz processor. It is capable of handling fourtotal processors. Which of the following processor combinations can be used in this server？（）
第3题：
Which new idea do you think may come true?
________________________________________
第4题：
Two of the four children may inherit the mutation.
Two of the four children may have the disease.
Two of the four children may end up disease free.
第5题：
Which of the following RAID arrays should be used to achieve the BEST fault tolerance？（）
第6题：
Which of the following is true regarding Label Distribution Protocol （LDP）？（）
第7题：
four switches， which one will be root switch.（no pic）.
第8题：
Which of the following statements is TRUE?
A. Every businessman possesses these four skills.
B. When a striver stops his devotion to work，he will feel quite at ease.
C. These basic skills are not instinctual at all.
D. Mother's education has undoubted effect on her child's success.
第9题：
A user has a small network of four computers that they want to connect to a single cable modem. Which of the following devices would allow the user to do this？（）
第10题：
Label
VPI VCI
EXP
TTL
FCS
S flag