Chapter 4

TQ you want to create a loopback plug using a single RJ45 connector. How should you connect the wires?

1 to 3, 2 to 6

TQ You want to create a rollover cable that has an RJ45 connector on both ends. how should you connect the wires within the connectors?

1 to 8, 2 to 7, 3 to 6, 4 to 5

TQ Your network follows the 100BaseTX specs for fast ethernat. What is that maximum cable segment length allowed?

100m (all ethernet networks using twisted pair cables have a max 100m segment length)

TQ Which of the following physical topologies are used with ethernet networks? (2 answers)

Bus Star

TQ You have been tasked with designing a high speed ethernet network. Your clients building already has 150-ohm shielded twisted pair (STP) wiring installed. Due to budget constraints, they have asked you to re-use the existing wiring instead of installing new fiber optic cabling. Which ethernet standard could wou implement in this situation?

1000BaseCX

TQ Which gigabit ethernet standard can support long network segments up to a max of 5km when used with single mode fiber optic cable?

1000BaseLX

TQ Which gigabit ethernet standard uses multimode fiber optic cabling and supports network segments up to a max of 550m?

1000BaseSX

TQ You have been tasked with designing and ethernet network. Your client needs to implement a very high-speed network backbone between campus buildings, some of which are around 300m apart. Multi-mode fiber optic cabling has already been installed between buildings. Your client has asked that you use the existing cabling. Which ethernet standard meets these guidelines? (two answers)

1000BaseSX 10GBaseSR

TQ Which of the following ethernet standards uses fiber optic cabling? (2 answers)

100BaseFX ("F" designates fiber optic) 1000BaseLX ("L" designates long distances which require fiber optic)

TQ which of the following use the CSMA/CD method?

100baseT

TQ You are planning a network for an educational campus. Due to the size of the buildings and the distance between them, you have elected to use 10BaseFL hubs, cabling, and NIC's. What is the max length for the network cable between a workstation and a hub?

2000m

TQ Your network follows the 100BaseFX specifications for fast ethernet and use half-duplex multimode cable. what is the maximum cable segment length allowed?

412m

TQ You have a network connected using a physical star topology. one of the drop cables connecting a workstation has been removed. What effect will this have on the network?

All devices except the device connected to the drop cable will be able to communicate.

TQ during a network infrastructure upgrade, you have replaced two 10mbps hubs with switches and upgraded from category 3 UTP cable to category 5e. During the process, you accidentally cut the 5e patch cable that stretches from the network printer to the upgraded switch. What is the impact on the network?

All network nodes except the printer will be available

TQ You are implementing a SOHO network for a local business. The ISP has already installed and connected a cable modem in the business. The biz has 4 computers that need to communicate with eachother and the internet. The ISP;s cable modem has only one RJ45 port. You need to set up the network within the following parameters -spend as little as possible -must not purchase unecessary equipment -computers need to have a gigabit connection to the network -new devices should not require management or configuration you examine each computer and notice only one of the 4 has a wireless NIC, they all have NIC;s What should you purchase?

An unmanaged Switch and CAT 5e cabling

TQ The media acces control method of all ethernet networks is...

CSMA/CD

TQ What is the minimum cable specification that supports 1000 mbps ethernet?

Cat 5e (3-4 are 10mbps, 5 is 100)

TQ What type of cabling is used with 100BaseTX Fast Ethernet networks?

Cat5 or higher

TQ You need to connect two switches using their uplink ports. The switches do not support auto-MDI. What type of cable should be used?

Crossover

TQ You need to transfer data from one laptop to another, and you would like to use an ethernet cable. You do not have a hub or a switch. What type of cable should you use?

Crossover

TQ you are moving a client to a new location withing and ethernet network. Previous to the move, the client system did not have difficulty accessing the network. During relocation, you attach patch cables from the client system to the wall jack, and from the patch panel to the switch. once connected, you do not get a link light on the network card or the switch. You swap out the cable running between the patch panel and the switch with a known working one, but you still cannot connect. What would you suspect is the problem?

Failed patch cable between client system and wall jack (patch doesnt have blinky lights...even though they insinuated that the patch was fine.....grumble)

TQ upon conducting a visual inspection of the server room, you see that a switch displays LED collission lights that are continually lit. You check the LED on the corresponding workstation and see that it is flashing rapidly even though it is not sending or recieving network traffic at that time. what is the cause of the network collisions?

Faulty network card (sometimes they dont just fail, they start "jabbering", flooding the network with transmissions)

TQ Ethernet 100BaseFX networks use what type of cabling?

Fiber Optic

TQ Users are complaining that sometimes network connections are slow. you use a protocol analyzer and find that packets are being corrupted as they pass through a switch. you also notice that this only seems to happen when the elevator is running. what should you do?

Install shielded cables near the elevator (not dedicated power source for switch)

TQ You have a network connected to a physical bus topology. One of the cables that connects a workstation to the bus breaks. Which of the following best describes what effect this will have on network communications?

No devices can communicate

TQ What topology is used with 100BaseTX Fast Ethernet Networks? (2 answers)

Physical Star/ Logical Bus Physical star/ logical star

TQ Which of the following are requirements of the 1000BaseT ethernet standards? (3 answers)

RJ45 connectors Cat 5e Cabling Cable length less than or equal to 100m

TQ Which of the following standards is typically used in a rollover cable?

RS232 (serial)

TQ You are creating an ethernet network for your company. The shipping department is located in a different building that is located 150 meters from the main wiring closet. You Connect a single Cat 6e cable to connect the wiring closet to the shipping building. Which of the following should you include in your plan?

Repeater

TQ you have purchased a new router that you need to configure. You need to connect a workstation to the router's console port to complete the configuration tests What type of cable would you most likely use?

Rollover

TQ Which of the following connectors is typically used on one end of a rollover cable?

Serial

TQ You want to implement an ethernet network at very long distances using fiber optic cables. Which standard and cable type would you chose? (two answers)

Single-Mode Fiber (multi-mode is cheaper but shorter distance) 1000BaseLX (think of "L" as long)

TQ You would like to implement 10gbps ethernet over a distance of 1km or greater. Which of the following would be the minimum requirement for the implementation? (2 answers)

Single-mode fiber 10GBaseLR standards

TQ You need to connect a workstation to a switch using a regular port on the switch (not an uplink port). The switch doesnt support auto-MDI. What type of cable should be used?

Straight-Through

Angela is the network admin for a rapidly growing company with a 100BaseT network. Users have recently complained about slow file transfers. While checking network traffic, angela discovers a high amount of collisions. Which connectivity device would best reduce the # of collisions and allow future growth?

Switch (bridge will segment traffic and reduce, but more complex, router would allow growth and reduce, but is more expensive and has less administrative options)

TQ A network is connected following the IEEE 802.3 specifications. Which of the following describes when a device can transmit a message?

The device listens to determine is the transmission media is free.

TQ You want to connect the LAN port on a router to the uplink port on a switch. The switch doesnt support auto-midi

crossover

TQ You have a network connected using a full physical mesh topology. The link between device A and device B is broken. What effect will this have on network communications?

device A will be able to communicate with all other devices

TQ You have just connected four new computers to an ethernet switch using spare patch cables. After the installation, only three systems are able to access the network. You verify all client network settings and replace the netword card in the failed system. The client is still unable to access the network. Which of the following might you suspect is the real cause of the problem?

failed patch cable

TQ Youve connected a cable certifier to an rj45 wall jack and the output below is displayed on the device. what does the output indicate? (2 answers) 1---1 2---2 3---3 44 5---5 66 7---7 8---8

pin 4 is open pin 6 is open (not shorted)

TQ A user from the sales department calls to report that he is experiencing problems connecting to the sales file server. All users in the sales department connect to the sales server through a single ethernet switch. No other users have reported problems connecting to the sales server. Which of the following is most likely the problem?

replace the network card in the user's computer