LPI 020-100 問題練習

Question No : 1
Which protocol provides secure communication over the Internet by encrypting data in transit?

• A.SMTP
• B.FTP
• C.HTTP
• D.HTTPS

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Question No : 2
What is information classification?

• A.The process of deleting information
• B.The process of encrypting information
• C.The process of categorizing information based on its sensitivity
• D.The process of sharing information with others

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Question No : 3
Which of the following concepts is related to the process of verifying a user's identity?

• A.Authorization
• B.Digital identity
• C.Authentication
• D.Accounting

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Question No : 4
Which of the following fields in an X.509 certificate identifies the domain name of a website?

• A.Issuer
• B.Subject
• C.Validity
• D.subjectAltName

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Question No : 5
Which of the following is a security implication of shared access to data in the cloud?

• A.Increased risk of unauthorized access to data
• B.Improved data security
• C.Improved data accessibility
• D.Decreased risk of data loss

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Question No : 6
What is end-to-end encryption?

• A.A method for optimizing website performance
• B.A software development process
• C.A type of encryption that protects data as it travels between two endpoints
• D.A technique for compressing files

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Question No : 7
What are email spam filters?

• A.Filters used to block sensitive information sent via email
• B.Filters used to block all incoming email
• C.Filters used to block only unsolicited and unwanted email
• D.Filters used to block all outgoing email

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Question No : 8
What is a major security concern when installing mobile applications from unknown sources?

• A.Malware infection
• B.Incompatible hardware components
• C.Reduced storage capacity
• D.Limited network connectivity

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Question No : 9
What is an non-disclosure agreement (NDA)?

• A.An agreement to not disclose any information
• B.A contract that requires sharing confidential information with others in a business relationship
• C.An agreement to disclose all information
• D.An agreement to disclose some information

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Question No : 10
Which of the following is a characteristic of Perfect Forward Secrecy (PFS)?

• A.It relies on a single long-term private key for all sessions.
• B.It is not used in modern encryption protocols.
• C.It generates a unique session key for each session.
• D.It uses symmetric encryption for all sessions.

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Question No : 11
What is the purpose of a rootkit?

• A.To increase network speed
• B.To encrypt data on a system
• C.To detect and remove malware
• D.To provide remote access to a system

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Question No : 12
Which of the following is a network address used to identify devices in layer three of the OSI model?

• A.TCP port number
• B.DNS address
• C.MAC address
• D.IP address

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Question No : 13
Which of the following is the BEST way to securely procure and install software?

• A.Downloading software from an unsecured website
• B.Purchasing software from an unverified vendor
• C.Installing software from a USB drive
• D.Installing software from an app store

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Question No : 14
Which of the following is used to verify the identity of a website?

• A.509 digital certificate
• B.SSL/TLS
• C.Certificate Signing Request (CSR)
• D.Diffie-Hellman key exchange

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Question No : 15
Which of the following encryption methods is used for email encryption and requires the use of a public key and a private key pair?

• A.Certificate Authority
• B.S/MIME
• C.OpenPGP
• D.SMTP STARTTLS

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