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单选题A user states that email is not being received. Which of the following protocols should thetechnician check for incoming mail?（）A SMTPB POP3C NNTPD HTTP

题目
单选题
A user states that email is not being received. Which of the following protocols should thetechnician check for incoming mail?（）
A

SMTP

B

POP3

C

NNTP

D

HTTP

参考答案和解析
正确答案： D
解析： 暂无解析
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相似问题和答案

第1题：

A user can receive email but cannot send email with the email client software. Which of the following protocols is incorrectly configured?()

A.FTP

B.SMTP

C.POP

D.SNMP


参考答案：B

第2题：

In which two conditions are resumable statements suspended？（）

  • A、 when a user exceeds the space quota
  • B、 when a user session is terminated
  • C、 when a table that is being accessed by the current transaction is not found
  • D、 when a user manually suspends the statement
  • E、 when the maximum extents of a segment is reached

正确答案:A,E

第3题：

用Email发送信件时，必须知道对方的地址，下列表示中()是合法、完整的Email地址。

A.@user

B.user@

C.user.

D.user$


参考答案：B

第4题：

An administrator receives a call from a user who is unable to receive email. After troubleshooting the administrator is able to resolve the issue and verify that user is able to access email again.  Which of the following is the NEXT step that the administrator should take？（）

  • A、 Implement preventative measures.
  • B、 Close the issue.
  • C、 Document the outcome.
  • D、 Question other users to make sure they are not having the same issue.

正确答案:C

第5题：

A user receives an email slating that their account was compromised and there is a need to verify account credentials by submitting the correct information on a website. Which of the following security threats is occurring?（）

  • A、Phishing
  • B、Smurf attack
  • C、Denial of service
  • D、Man-in-the-middle

正确答案:A

第6题：

When adding a new user and assigning a role, which user role has "read only" rights to theconfiguration and operational states? （）

  • A、user
  • B、read_only
  • C、target_operator
  • D、security_operator

正确答案:A

第7题：

A user has reported that they cannot access the company FTP site. The user states that they are using the IP address that was given to them “74200.92.105”. Which of the following is MOST likely the problem?（）

  • A、Invalid IP address
  • B、FTP program is not working
  • C、Port 21 is blocked
  • D、The FTP site is down

正确答案:A

第8题：

A user states that the laser printer is leaving a black line on all pages being printed. Which of thefollowing is the MOST likely cause and solution for this issue?()

A. Faulty driver; reinstall or update driver

B. Bad fuser; place service call to printer manufacturer.

C. Excess toner on drum; perform maintenance (e.g. clean drum surface).

D. Deteriorating rollers and worn brushes; replace rollers and brushes.


参考答案：C

第9题：

A user received an email from their bank asking them to login and verify their personal information.The user complies and fills in the requested information. Days later the user notices their checking account is empty. This is a result of which of the following?（）

  • A、Spam
  • B、Phishing
  • C、Adware
  • D、A Trojan

正确答案:B

第10题：

A user can receive email but cannot send email with the email client software. Which of the following protocols is incorrectly configured?（）

  • A、FTP
  • B、SMTP
  • C、POP
  • D、SNMP

正确答案:B

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