What physical layer medium is used by DSL to provide high-speed data communications? telephone lines television cable Satellite dish 4G wireless radio Explanation: DSL uses existing telephone lines to carry…
A technician needs to add a new wireless device to a small WLAN. The WLAN is a mixture of old and newer 802.11b and 802.11g devices. What choice for the…
A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address? It cannot communicate outside its own network. It can…
How many bits are used to represent a MAC address? 48 8 128 64
How many bits are used to represent the OUI part of the MAC address of a NIC card? 24 8 128 42
How many bits are used to represent the network address of a host with an IP address of 192.168.150.16 and a subnet mask of 255.255.0.0? 16 128 32 4
How many bits are used to represent the host address of a computer with the IP address of 192.168.1.25 and a subnet mask of 255.255.255.0? 8 48 32 12
How many bits are used to represent an IPv6 address? 128 48 32 12
Which filtering method uses the physical address to specify exactly which device is allowed or blocked from sending data on a network? MAC address filtering port forwarding port triggering whitelisting…
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…
Which IPv6 address represents the most compressed form of the IPv6 address 2001:0db8:cafe:0000:0835:0000:0000:0aa0/80? 2001:0db8:cafe:0000:0835::0aa0/80 2001:db8:cafe:0000:0835::aa0/80 2001:0db8:cafe:0000:0835::0aa/80 2001:db8:cafe::0835::aa0/80 2001:db8:cafe:0:835::aa0/80 Explanation: There are two rules that exist to help in the reduction…
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…
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…
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…
What is the proper CIDR prefix notation for a subnet mask of 255.0.0.0? /8 /16 /24 /32 Explanation: The proper CIDR notation for a subnet mask of 255.0.0.0 is /8.…
What is the correct compressed format of the IPv6 address 2001:0db8:eeff:000a:0000:0000:0000:0001? 2001:db8:eeff:a::1 2001:db8:eeff:a:1 2001:db8:eeff:a::0001 2001:db8:eeff:a:::1 Explanation: There are two rules for IPv6 address compression. Rule 1: leading zeros in any…
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…
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 hash encoding…
Which network protocol is used to automatically assign an IP address to a computer on a network? FTP DHCP ICMP SMTP APIPA Explanation: A Dynamic Host Configuration Protocol (DHCP) 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…