Chapter 6.2

Users in a recently installed wireless network are complaining of slow data transfer and frequent loss of connectivity. The technician checks that the wireless security is correctly implemented, and there is no evidence of unauthorized users on the network. Which two problems might the technician suspect? (Choose two.)

• There is interference from outside sources.

• The DHCP server is faulty.

• The wireless signal is too weak.

• The antenna on the access point is too powerful.

• The network passwords need to be reissued to the users.

A user can print to a printer that is on the same network, but the traffic of the user cannot reach the Internet. What is a possible cause of the problem?

• The PC default gateway address is missing or incorrect.

• The PC has an incorrect IP address.

• The network cable connected to the user PC is faulty.

• The NIC on the PC is faulty.

A PC is not able to connect to a wired network. Pinging the loopback address is successful, but the gateway cannot be reached. On the network switch all the interface lights are on, except for the interface connected to the PC. The LED on the network card is off. What is the most likely cause of this problem?

• The gateway needs to be fixed.

• The network cable is faulty.

• The network switch is faulty.

• The PC has an incorrect IP address for the DNS server.

A technician troubleshooting a network problem has used CLI commands to determine that a computer has not been allocated a correct IP address from the DHCP server. Which command can the technician use to solve this problem?

• ping

• ipconfig/release

• tracert

• ipconfig/renew

A group of users is unable to connect to the network. When testing several of the PCs and issuing the command ipconfig, the technician notices that all of them have an IP address in the 169.254.x.x range. What is the most likely cause of this problem?

• The Internet connection is down.

• The DHCP server is not operational.

• The gateway address is incorrect.

• The DNS server is not operational.

Which network server is malfunctioning if a user can ping the IP address of a web server but cannot ping the web server host name?

• the DNS server

• the DHCP server

• the FTP server

• the HTTP server

Multiple users report that the workstations are assigned a 169.254.x.x IP address. The users are able to communicate only between each other. What is a possible solution?

• Restart the DNS server.

• Statically configure a default gateway on each workstation.

• Verify the network cable on all user machines.

• Restart the DHCP server.

An administrator deploys wireless access points across the office to provide wireless network connectivity to users. Each workstation receives an IP address via DHCP. After a file server with a static IP is connected to the wired network, the administrator receives an IP address conflict message. What is a possible solution?

• Restart the DHCP server.

• Change the IP address of the file server with the ipconfig /release and ipconfig /renew commands.

• Change the static IP configured on the file server.

• Connect the file server to the wireless network.

A workstation has been moved from the first floor to the fifth floor within an organization. The user is now reporting that the workstation cannot connect to the network. A technician suspects that the workstation could not obtain an IP address from a DHCP server. What is a possible cause of the problem?

• An IP address conflict occurred.

• The DHCP server is misconfigured.

• The workstation has been configured with a static IP address.

• The default gateway address is misconfigured on the workstation.

After having talked to the customer, a network technician suspects that an invalid IP address is the most likely cause of a network issue. Which step of the troubleshooting process does this represent?

• Identify the problem.

• Test the theory to determine the cause.

• Establish a theory of probable cause.

• Establish a plan of action to resolve the problem and implement the solution.