Although TCP segments differ fro

题目

Although TCP segments differ from UDP segments, they both contain some common fields. What two segments do they share in common?()

  • A、source address
  • B、options
  • C、sequence number
  • D、sources
  • E、destination port
  • F、checksum
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相似问题和答案

第1题:

You have 100 segments in the USERS tablespace. You realize that the USERS tablespace is running low on space. You can use Segment Advisor to()。

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


参考答案:A

第2题:

Although TCP segments differ from UDP segments, they both contain some common fields. What two segments do they share in common?()

A. source address

B. options

C. sequence number

D. sources

E. destination port

F. checksum


参考答案:E, F

第3题:

_______________

[A] cover

[B] change

[C] range

[D] differ


正确答案:C

第4题:

Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive (74)faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection.

A.connections
B.requests
C.acknowledgments
D.datagrams

答案:C
解析:
网络工程师

第5题:

关于数据封装的顺序()是正确的。

A.DatA.segments-packets-frames-bits

B.DatA.packets-segments-frames-bits

C.DatA.frames-segments-packets-bits

D.DatA.segments-frames-packets-bits


参考答案:A

第6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.


正确答案:CD
C,D 解析:Explanation:
ping may be used to find out whether the local machines are connected to the network or whether a remote site is reachable. This tool is a common network tool for determining the network connectivity which uses ICMP protocol instead of TCP/IP and UDP/IP. This protocol is usually associated with the network management tools which provide network information to network administrators, such as ping and traceroute (the later also uses the UDP/IP protocol).

ICMP is quite different from the TCP/IP and UDP/IP protocols. No source and destination ports are included in its packets. Therefore, usual packet-filtering rules for TCP/IP and UDP/IP are not applicable. Fortunately, a special "signature" known as the packet's Message type is included for denoting the purposes of the ICMP packet. Most commonly used message types are namely, 0, 3, 4, 5, 8, 11, and 12 which represent echo reply, destination unreachable, source quench, redirect, echo request, time exceeded, and parameter problem respectively.

Incorrect Answers
ICMP is an IP protocol so A and E are incorrect.
ICMP doesn't guarantee datagram delivery so B is wrong as well.

第7题:

Estimates _____ anywhere from 600 000 to 3 million. Although the figure may vary, analysts do agree on another mater: that the number of the homeless is increasing. One of the federal government’s studies predicts that the number of the homeless will reach nearly 19 million by the end of this decade.

[A] cover

[B] change

[C] differ

[D] range


正确答案:D
16. [D] 本句意思为“估计数字的范围大约从60万到300 万之间”,而 range from… to …这一句型正是表示“在……范围之内变化”的意思,故本题选[D]。[A] cover 虽然有“包含”之意,但 cover表示“覆盖”的面积、大小,不表示范围,故排除。[C] differ 主要强调不同,而本句并未强调不同,只是强调范围,故选择 range。

第8题:

Although they differ in some ways, they are ______ to each other in hobbies.

A. similar

B. same

C. different

D. like


参考答案A

第9题:

Estimates( )anywhere from 600,000 to 3 million.Although the figure may vary,analysts do agree on another matter:that the number of the homeless is increasing,one of the federal government’s studies predicts that the number of the homeless will reach nearly 19 million by the end of this decade.

A.cover
B.change
C.range
D.differ

答案:C
解析:
本句意思为“估计数字的范围大约从60万到300万之间”,而range from…to…这一句型正是表示“在…范围之内变化”的意思,故本题选CA.cover虽然有“包含”之意,但cover表示“覆盖”的面积,大小,不表示范围,故排除。D.differ主要强调不同,而本句并未强调不同,只是强调范围,故选择range。

第10题:

CipherSuite字段中的第一个元素密钥交换模式中,不支持的密钥交换模式是哪个()

  • A、定的Differ—Hellman
  • B、暂的Differ—Hellman
  • C、名的Differ—Hellman
  • D、期的Differ—Hellman

正确答案:D

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