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[单选题]

You installed SSH on an older Linux server.You want to allow users to authenticate sec

A.Public keys must first be exchanged to enable data encryption, and then the system exchange host keys to enable authentication without passwords.

B.The system must exchange host keys to enable data encryption, and individual users must exchange public keys to enable authentication without passwords.

C.A key pair must be obtained from a CA to enable data encryption, then host keys must be exchanged to enable authentication.

D.A key pair must be obtained from a CA to enable authentication, then host keys must be exchanged to enable data encryption.

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第1题
Which of the following statements apply to the SAP Enterprise Portal? There are 2 cor
rect answers to this question.()

选项格式A.The portal is a uniform. framework for accessing company data from different systems

B.The portal is only a source of information (display function) and is not used for processing datA.The portal is a uniform. framework for accessing company data from different systems

B.The portal is only a source of information (display function) and is not used for processing dat选项格式A

C.The portal is an interface for managing variants of frequently-used transactions

D.The portal enables you to access SAP ERP without having the SAP GUI installed on your computer

E.The portal buffers all data so that work can continue in the portal if one of the assigned systems fails

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第2题
Internet giants such as Microsoft knew consumer confidence was the key to getting virt
ual(虚拟的) shopping off the ground,and they work hard to make people feel safe to shop online.

Credit card companies,too,quickly saw the potential for online shopping,and have installed things like online shopping insurance for people. If you ever have a problem with your online credit purchases,many credit card companies will happily refund(退还) your money and then set their claws on the company that wronged you. Now that’s buying power!

There are other bonuses for online shoppers,of course. No line­ups,for one. No annoying mall shopping carts with broken wheels and kids crying because their parents won’t get them what they want.

When shopping online,consumers can sit down,have a coffee,and wear their slippers,not having to worry about their hair or parking,and just clicking through sale after sale. Comparison shopping couldn’t be any easier. And thanks to courier companies(快递公司) getting in on the act,you never need to wait longer than a day or two to get those all important purchases delivered right to your door.

No wonder so many companies are shaking their heads at traditional retailing and instead looking to the “virtual” world to attract online shoppers.

1.The underlined word “leery” in the first paragraph means being very sure.()

2.Consumer confidence in online shopping mainly relies on security in shopping.()

3.Internet giants, traditional retailers, courier companies and credit card companies have made contributions to the popularity of online shopping.()

4.The author think of the current online shopping as safe, convenient and fast.()

5. Nowadays many companies are trying to cooperate with the online shoppers instead of traditional retailers.()

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第3题
ZXCTN6200 can be installed with maximum 4 pieces of 10GE line cards. ()
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第4题
ZXCTN6200 can be installed with maximum 4 pieces of 10GE line cards.()
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第5题
远程登录命令包含()。

A.telnet、ssh

B.https、telnet

C.ssh、http

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第6题
指定ansible默认的ssh用户名的变量是()。

A.ansible_sh_user

B.ansible_ssh_user

C.ansible_user ssh_

D.ansible_users ssh

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第7题
交换机支持哪几种NETCONF模式?()

A.NETCONF over SSH

B.NETCONF over SSH callhome

C.NETCONF over telnet

D.NETCONF over SNMP

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第8题
以下选项哪个命令是用hadoop用户登录,通过scp命令实现密钥拷贝到slave1节点上()。

A.scp~/.ssh/id_rsa.pubhadoop@slave2:~/

B.scp~/.ssh/id_rsa.pubroot@slave1:~/

C.scp~/.ssh/id_rsa.pubhadoop@slave1:~/

D.scp~/.ssh/id_rsa.pubslave1@root:~/

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第9题
SSH默认的端口号是()

A.21

B.22

C.23

D.25

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第10题
不属于HDFS存储类型的是()。

A.DISK

B.SSH

C.ARCHIVE

D.RAM_DISK

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第11题
为了开发及运维方便,可以通过ssh生产公私钥对,实现免密ssh登录。()
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