source address
options
sequence number
sources
destination port
checksum
第1题：
ICMP is often used in troubleshooting and verifying network. What statements are true regarding ICMP packets? (Choose two)
A. They acknowledge receipt of TCP segments.
B. They guarantee datagram delivery.
C. They can provide hosts with information about network problems.
D. They are encapsulated within IP datagrams.
E. They are encapsulated within UDP datagrams.
F. They are encapsulated within TCP datagrams.
第2题：
A.DatA.segments-packets-frames-bits
B.DatA.packets-segments-frames-bits
C.DatA.frames-segments-packets-bits
D.DatA.segments-frames-packets-bits
第3题：
A work breakdown structure:
A . assures all work is identified.
B . subdivides the project into manageable segments.
C . provides the project sponsor with a time-phase task summary.
D . both A and B.
E . All of the above.
第4题：
How doTCP SYN attacks take advantage ofTCPto prevent new connections from being established to a host under attack？（）
第5题：
Which of the following protocols use both TCP and UDP ports?（）
第6题：
A. source address
B. options
C. sequence number
D. sources
E. destination port
F. checksum
第7题：
第8题：
A. identify the segments that you should shrink
B. modify the storage parameters for the tablespace
C. automatically shrink the segments with unused space
D. check the alerts generated for the tablespace that is running low on space
第9题：
Although TCP segments differ from UDP segments, they both contain some common fields. What two segments do they share in common?（）
第10题：
What statements are true regarding ICMP packets?（）