May have Ethernet as well as non-Ethernet interfaces
Traditionally used as a standalone device for inter-VLAN communication
Makes use of TCAMs
Uses subinterfaces to define trunks
Can use both Layer 2 and Layer 3 to make forwarding decisions
Allows the definition of Switched Virtual Interfaces（SVI）
第1题：
A、Disclosure of private feeling is distasteful.
B、People are suspicious of outsiders.
C、Uniformity is not highly thought of.
D、there is a positive attitude about words of disagreement.
第2题：
A. Level 1 only routers see routes contained in their area.
B. Level 1 routers route towards Level 2 routers due to the attached bit.
C. Level 2 routers route towards Level 1 routers due to the attached bit.
D. Level 2 routers can see routes in other Level 2 areas and routes originated in Level 1 areas.
第3题：
Which of the following statements about Leopold and Rudolph Blaschka is TRUE?
A. They were brothers.
B. They were artists.
C. They were florists.
D. They were farmers.
32．答案为B。根据第一段最后一句，the work of two artists-naturalists，Leopold Blaschka and his son Rudolph作出该项选择。
第4题：
第5题：
Which of following statements about testing software with data is (are) true?
Ⅰ.The primary purpose of such testing is to find errors.
Ⅱ.Such testing can demonstrate the existence of errors but can not demonstrate the absence of errors.
A．Neither
B．Ⅰ only
C．Ⅱ only
D．Ⅰ and Ⅱ
第6题：
Which of the following statements is true? Accounts payable are ______.
A．debts owed to suppliers
B．related to purchases of goods on an open account
C．current liabilities
D．all of the above
第7题：
A. Routers cannot redistribute external routes into the area.
B. Routers should have zero Type 3 LSAs in their LSDBs.
C. Routers should have zero Type 5 LSAs in their LSDBs.
D. Routers should learn default routes from the ABRs attached to the area.
第8题：
Which of the following statements about testing software with data is (are) true?
Ⅰ.The primary purpose of such testing is to find errors.
Ⅱ.Such testing can demonstrate the existence of errors but cannot demonstrate the absence of errors.
A．Neither
B．I only
C．Ⅱonly
D．Ⅰand Ⅱ
第9题：
Which of the following statements is true regarding simple sort techniques?
A．exchange sort if frequently referred to as a bubble sort.
B．exchange sort is the least expensive.
C．if random data are in an array that is to be sorted ,an insertion sort will give then best performance for large elements with small sort items.
D．both insertion sort an selection sort require O(n) moves.
第10题：
Which of the following are true of both OSPFv2 and OSPFv3?（）