Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____. 3, 3, 1, 7 3, 3, 2, none 3, 2, 1, none 3, 2, 1, 7 All of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is an IEEE standard for frame tagging? 802.3U 802.3Z 802.1Q ISL TRUE ANSWER : ? YOUR ANSWER : ?
What is the maximum distance with maximum data rate for 802.11a? About 90-100 feet Over 200 feet About 150 feet About 65-75 feet TRUE ANSWER : ? YOUR ANSWER : ?
What device separates a single network into two segments but lets the two segments appear as one to higher protocols? Bridge Gateway Router Switch TRUE ANSWER : ? YOUR ANSWER : ?
To enable RIPng, which of the following would you use? Router1(config)# ipv6 router eigrp 10 Router1(config-if)# ipv6 router rip 1 Router1(config-if)# ipv6 ospf 10 area 0.0.0.0 Router1(config-rtr)# no shutdown TRUE ANSWER : ? YOUR ANSWER : ?
In CRC the quotient at the sender is discarded becomes the dividend at the receiver becomes the divisor at the receiver is the remainder TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following commands displays the configurable parameters and statistics of all interfaces on a router? show versions show startup-config show running-config show interfaces TRUE ANSWER : ? YOUR ANSWER : ?
Carrier is a collection of interconnected functional units that provides a data communications service among stations attached to the network a continuous frequency capable of being modulated or impressed with a second signal None of these One or more conductors that serve as a common connection for a related group of devices the condition when two or more sections attempt to use the same channel at the same time TRUE ANSWER : ? YOUR ANSWER : ?
You have created a named access list called Blocksales. Which of the following is a valid command for applying this to packets trying to enter interface s0 of your router? (config-if)# ip access-group Blocksales in (config)# ip access-group 110 in (config-if)# ip access-group 110 in (config-if)# blocksales ip access-list in TRUE ANSWER : ? YOUR ANSWER : ?
You have been contracted to install a windows NT network in an office that is located in a strip mall. The office is located next to the power plant of the building, so a UPS (uninterruptible power supply) has already been installed. What type of cable should you use for the network cabling? Choose the best answer. UTP TI PSTN STP Fiber-optic TRUE ANSWER : ? YOUR ANSWER : ?