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 central device used today to connect computers to a network?

• Hub

• Switch

• SOHO router

• VPN router

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

• RG-6

• 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 topology is the most redundant and the most expensive?

• Star

• Ring

• Mesh

• Bus

Which of the following standards describe CSMA/CD?

• 801.2

• 802.3

• 802.5

• 802.11

Which mechanism is used by wireless networks to access the network?

• CSMA/CD

• CSMA/CA

• Token passing

• Polling