When a key network administrator leaves a company, which of the following does the company depend on to continue to use the network?

• The user’s password

• Active Directory

• The master network switch

• Network documentation

Which of the following is the most common adapter or connector used to connect a computer to a wired network?

• RG-11

• RG-58

• RJ-45

• RJ-8

Which of the following is used by a switch for increased performance?

• Simplex

• Half duplex

• Full duplex

• Sliding duplex

Which of the following is used to isolate a group of computers within an organization?

• WLAN

• WAN

• VLAN

• Internet

Which of the following is used to create VLANs?

• Router

• Switch

• Firewall

• Proxy server

Which zone is used to publish external websites for an organization?

• Intranet

• Extranet

• Internetwork

• DMZ

Which type of communication is sent to a single designated host?

• Unicast

• Broadcast

• Multicast

• Anycast

Which of the following is used to uniquely identify a host on a TCP/IP network?

• IP address

• MAC address

• Bit pattern

• Router name

A network device that associates a Media Access Control (MAC) address with a port is a:

• DSL modem

• Hub

• Router

• Switch

Which type of network is most vulnerable to intrusion?

• Dial-up

• Wireless

• Broadband

• Leased line