单项选择题

An administrator replaced a router with a switch. End users are able to access network shares butare not able to access the Internet. Which of the following is the BEST explanation why the usersare unable to access the Internet?（）

A. Router routes traffic between different networks and a switch does not
B. The new switch is faulty and needs to be replaced and configured correctly
C. The firewall needs to be setup to allow traffic to reach the Internet
D. The switch needs to be setup to forward data traffic to the Internet

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热门试题

单项选择题Which of the following logical network topologies is used to provide a secure connection acrossthe Internet?（）

A.VLAN
B.Peer to Peer
C.VTP
D.VPN

单项选择题Which of the following technologies facilitates the conversion of internal private IP addressing toexternal public IP addressing?（）

A.DHCP
B.TCP/IP
C.NAT
D.SNMP

单项选择题Which of the following processes translates a private IP address for a public IP address?（）

A.NAT
B.DNS
C.DHCP
D.PAT

单项选择题Which of the following holds multiple connections and is usually maintained by the telephone company?（）

A.Demarc
B.IDF
C.MDF
D.110 block

单项选择题Which of the following DNS record types provides the hostname to IP address mapping?（）

A. A record
B. NS record
C. CNAME record
D. MX record