单选题Which of the following documents should always be kept up-to-date after any major changes aremade to a network backbone?（）A Network diagramB Performance baselineC Network security procedureD Company policy

第1题：

第2题：

An administrator has completed the installation of a new WLAN. Which of the following configuration management documents needs to be updated?（）

• A、Logical network diagram
• B、History logs
• C、Baseline configurations
• D、Wiring schematics

第3题：

第4题：

An administrator replaces the network card in a web server. After replacing the network card some users can access the server but others cannot.  Which of the following is the FIRST thing the administrator should check？（）

• A、 Default gateway
• B、 The ports on the switch
• C、 Port security on the servers switch port
• D、 Ethernet cable

第5题：

Which should be the key driver for a company security policy’s creation， implementation and enforcement？（）

• A、 the business knowledge of the IT staff
• B、 the technical knowledge of the IT staff
• C、 the company’s business objectives
• D、 the company’s network topology
• E、 the IT future directions

第6题：

Which of the following statements is true about the 80/20 rule （Select all that apply）？（）

• A、20 percent of the traffic on a network segment should be local.
• B、no more than 20 percent of the network traffic should be able to move across a backbone.
• C、no more than 80 percent of the network traffic should be able to move across a backbone.
• D、80 percent of the traffic on a network segment should be local.

第7题：

A network vulnerability scanner is part of which critical element of network and system security?（）

• A、host security
• B、perimeter security
• C、security monitoring
• D、policy management

第8题：

第9题：

Which of the following documents should always be kept up-to-date after any major changes aremade to a network backbone?（）

• A、Network diagram
• B、Performance baseline
• C、Network security procedure
• D、Company policy

第10题：

An administrator wants to be alerted when a network-based attack is underway, but the company policy prohibits blocking or dropping network connections. Which of the following MUST be deployed?（）

• A、IDS
• B、IPS
• C、Firewall
• D、Managed PKI