L2F tunnel
L2TP tunnel
GRE tunnel
ISAKMP tunnel
第1题：
as the third engineer ,what precautions do you need take to prepare for PSC inspection ?
第2题：
if it is cold ,you will find the air conditioner compressor stop automatically ,do you know the reasons ?
第3题：
A.You are right, but don’t you know the meaning of work?
B.Sorry, I don’t think so.I get overpaid for overwork, you know.
C.That’s right.All work and no play make Jack a dull boy.
D.That’s right, but the work is interesting.I don’t mind some extra hours at
第4题：
What kind of knowledge do you need to have if you say you know a word?
Knowing a word involves knowing its meaning, its form and its use. If we say that we know a word, we must be able to
a) recognize it in written and spoken form;
b) recall it at once;
c) relate it to appropriate object or concept;
d) use it in appropriate grammatical form;
e) use it in correct collocation;
f) use it at appropriate level of formality;
g) pronounce it in a recognizable way;
h) spell it correctly;
i) be aware of its connotation.
略
第5题：
A.
B.
C.
D.
E.
F.
第6题：
when do you have call the chief engineer to the engine room ?
第7题：
A. The crypto isakmp configuration is not correct.
B. The crypto map configuration is not correct.
C. The interface tunnel configuration is not correct.
D. The network configuration is not correct; netw ork 172.16.1.0 is missing.
第8题：
You do not mind ()long hours, do you?
A、 working
B、 work
C、 to work
答案：A
解析：本句意思：你不介意长时间工作，是吗？本句考查mind固定搭配，通常mind+doing表示“介意做某事”，不与to do或do直接连用。
第9题：
第10题：
Do you commute to work? No, I work at home.（）