单选题Which of the following technologies can be used as a means to isolate a host OS from some types of security threats？（）A Intrusion detectionB VirtualizationC KitingD Cloning

第1题：

Which of the following constraint types can be used to ensure the value of an INTEGER column references only positive values?（）

• A、Unique
• B、Check
• C、Referential
• D、Informational

第2题：

Which of the following technologies can be used to remotely gain access to a server console？（）

• A、PS/2 KVM
• B、LDAP
• C、VNC
• D、Remote desktop
• E、VPN

第3题：

第4题：

Which of the following cable types can be used to decrease susceptibility to electronic eavesdropping?（）

• A、Fiber optic
• B、Fast Ethernet
• C、Coaxial
• D、Thicknet

第5题：

Which of the following switches in Windows can be used to ping a host until stopped?（）

• A、-l
• B、-a
• C、-t
• D、-f

第6题：

Which of the following management types can be used to deploy appropriate quality-of-servicesolutions to make the most efficient use of bandwidth？（）

• A、Fault management
• B、Accounting management
• C、Operations management
• D、Performance management
• E、Security management
• F、Configuration management

第7题：

When a user’s computer is first turned on, they see a lock symbol and a blinking cursor. Which of the following was configured in the BIOS to show this?（）

• A、Intrusion detection
• B、Power on password
• C、Drive encryption
• D、BIOS password

第8题：

第9题：

An administrator has been having problems with server security. Many of the servers have been infected with viruses in the past. Which of the following can be done to ensure that systems avoid OS exploits？ （）

• A、 Implement an intrusion detection system （IDS）.
• B、 Implement a dual-factor authentication method.
• C、 Implement a patch management process.
• D、 Implement stronger user passwords.

第10题：

Which of the following can be used when installing the OS without a boot disk？（）

• A、ZFS
• B、VMFS
• C、PXE
• D、PBX