kfyukgfkygreh6tjurnv 6 Flashcards
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 wireless signal is too weak
A wired network is undergoing several changes that could leave it vulnerable to connection by unauthorized devices while the work is in progress. Which two temporary measures would enable the authorized devices to continue to have network access but prevent unauthorized devices from connecting? (Choose two.)
Disable DHCP
Assign static IP addresses to the authorized devices
What two default wireless router settings can affect network security? (Choose two.)
The SSID is broadcast
A well-known administrator password is set
A network technician is checking a computer to see if the DHCP client is working correctly. The technician issues the ipconfig /all command. Which two parameters should the technician review? (Choose two.)
default gateway
subnet mask
A technician is troubleshooting a problem where the user claims access to the Internet is not working, but there was access to the Internet the day before. Upon investigation, the technician determines that the user cannot access the network printer in the office either. The network printer is on the same network as the computer. The computer has 169.254.100.88 assigned as an IP address. What is the most likely problem?
The computer cannot communicate with a DHCP server
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
Port triggering has been configured on a wireless router. Port 25 has been defined as the trigger port and port 113 as an open port. What effect does this have on network traffic?
All traffic that is sent out port 25 will open port 113 to allow inbound traffic into the internal network through port 113
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 network cable is faulty
The current IP configuration of a small company is done manually and is time-consuming. Because of increased network growth, a technician needs a simpler way for IP configuration of workstations. Which service would simplify the workstation IP configuration task?
DHCP
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?
ipconfig/renew
Which network protocol is used to automatically assign an IP address to a computer on a network?
DHCP
What security technique could provide secure access to a server located in a small office without the expense of implementing a DMZ or purchasing a hardware firewall?
implement port forwarding
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 DHCP server is not operational
What is the correct compressed format of the IPv6 address 2001:0db8:eeff:000a:0000:0000:0000:0001?
2001:db8:eeff:a::1
What is the proper CIDR prefix notation for a subnet mask of 255.0.0.0?
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