Which of the following default ports must be opened to allow a technician to telnet into a machine?()A、21B、23C、24D、25

题目

Which of the following default ports must be opened to allow a technician to telnet into a machine?()

  • A、21
  • B、23
  • C、24
  • D、25
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相似问题和答案

第1题:

By default, which of the following ports would a network need to have opened to allow for thetransmission of incoming and outgoing email?() (Select TWO).

A.21

B.25

C.80

D.110

E.123


参考答案:B, D

第2题:

A technician recently installed a new firewall. Which of the following ports must be open to permit HTTPS traffic?()

  • A、21
  • B、23
  • C、80
  • D、443

正确答案:D

第3题:

Which of the following ports would have to be allowed through a firewall to allow SNMP traffic topass on its default port?() (Select TWO).

A.22

B.23

C.143

D.161

E.162

F.8080


参考答案:D, E

第4题:

Which of the following ports is the default for HTTP?()

  • A、21
  • B、25
  • C、80
  • D、110

正确答案:C

第5题:

Telnet使用的端口是()

  • A、21
  • B、23
  • C、25
  • D、80

正确答案:B

第6题:

TELNET协议的默认端口是()

  • A、21
  • B、23
  • C、25
  • D、80

正确答案:B

第7题:

Which of the following is the default SMTP port?()

  • A、21
  • B、22
  • C、23
  • D、25

正确答案:D

第8题:

Which of the following ports does POP3 services use, by default?()

A.25

B.110

C.143

D.443


参考答案:B

第9题:

端口()由Telnet通信协议使用。

  • A、21
  • B、23
  • C、25
  • D、27

正确答案:B

第10题:

Which of the following ports should be allowed through a firewall for Telnet to function?()

  • A、23
  • B、25
  • C、50
  • D、110

正确答案:A

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