Network Pro Part 3 ++++++++++++++++++++++++
Which IEEE standard describes wireless communications?
802.11b
The device listens to determine if the transmission media is free.
A network is connected following the IEEE 802.3 specifications. Which of the following best describes when a device can transmit messages?
Fiber optic
Ethernet 100BaseFX networks use what type of cabling?
What is the primary benefit of CCTV?
Expands the area visible by security guards
You have a network connected using a physical bus topology. One of the cables connecting a workstation to the bus breaks. Which of the following best describes what happens to network communications?
No device is able to communicate.
Which type of security uses MAC addresses to identify devices that are allowed or denied a connection to a switch?
Port security
You want to use CCTV as a preventative security measure. Which of the following is a requirement for your plan?
Security guards
You use Cat5e twisted pair cable on your network. Cables are routed through walls and the ceiling. A user puts a screw in the wall to hang a picture and pierces the cable such that a signal sent on pin 1 arrives on the cable connected to pin 7. What term describes this condition?
Short circuit.
Users report that the Internet is no longer accessible. You suspect that the line connecting your building to the Internet is not working properly. Which of the following allows the service provider to remotely test the local loop?
Smart jack.
What is a secure doorway that can be used in coordination with a mantrap to allow easy egress from a secured environment but which actively prevents re-entrance through the exit portal?
Turnstiles
Which of the following CCTV camera types lets you adjust the distance that the camera can see?
Varifocal
2000 meters
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 network interface cards. What is the maximum length for the network cable between a workstation and a hub?
Routing and Remote Access
You have a Windows Server 2012 system that you want to use as a DHCP Relay Agent. Which Windows Server 2012 service would you use to do this?
100 meters
Your network follows the 100BaseTx specifications for Fast Ethernet. What is the maximum cable segment length allowed?
Which data transmutation rate is defined by the IEEE 802.11b wireless standard.
11Mbps
You want to use CCTV to increase the physical security of your building. Which of the following camera types would offer the sharpest image at the greatest distance under the lowest lighting conditions?
500 resolution, 50mm, .05 LUX
You are designing a wireless network for a client. Your client needs the network to support a data rate of at least 54Mbps. In addition, the client already has a wireless telephone system installed that operates 2.4GHz. Which 802.11 stand will work best in this situation?
802.11a
You are designing an update to your clients wireless network. The existing network uses 802.11b. Due to budget, which 802.11 standard will work best.
802.11g
You have a company network with a single switch. All devices connect to the network through the switch. You want to control which devices will be able to connect to your network. For devices that do not have the latest operating system patches, you want to prevent access to all network devices except for a special server that holds the patches that the computers need to download. Which of the following components will be part of your solutions? select two
802.1a authentications Remediation servers
Replace the network card in the user's computer
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 troubleshooting actions are you most likely to perform first?
You have a network connected using a physical star topology. One of the drop cables connecting a workstation is removed. Which of the following best describes what happens to network communications?
All devices except the device connected to the drop cable will be able to communicate.
During a network infrastructure upgrade, you have replaced two 10 Mbps hubs with switches and upgraded from Category 3 UTP cable to Category 5e. During the process, you accidentally cut the Cat 5e patch cable that stretches from the network printer to the upgraded switch. What is the impact on the network?
All network nodes, with exception of the printer, will be available.
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 Cat6e cable to connect the wiring closet to the shipping building. Which of the following are you most likely to experience?
Attenuation.
The phone line to one office is not working. You have identified the location of the phone line in a 66 block in the wiring closet. Which tool would you use to connect to the phone line at the punchdown block to see if you can make or receive calls?
Butt set.
You manage a network that uses 1000BaseT Ethernet. You find that one device communicates on the network at only 100 Mbps. Which tool should you use to test the drop cable and the connection to the network?
Certifier.
You are the network administrator for a city library. Thought the library are several groups of computers that provide public access to the internet..... The library computers are in croups of four. each group of four computers is connected to a hub that is connected to the library network... What can you do?
Configure port security on the switch
You want to create a loopback plug using a single RJ-45 connector. How should you connect the wires in the connector?
Connect pin 1 to pin 3 and pin 2 to pin 6.
Private addresses cannot directly communicate to hosts outside the local subnet
CorpSerc is a small company with 14 client systems and a network printer. Because there are only a limited number of networked systems, you decide to use APIPA addressing for the network. With APIPA configured, all systems are able to communicate with each other but you are having trouble configuring Internet access. What is the likely cause of the problem?
You have decided to implement Gigabit Ethernet on your network. Each switch port is connected to a single device. Following the installation, you find one device connected to a switch that is only running at 100 Mbps. Which of the following are likely causes?
Crosstalk.
A network switch detects a DHCP frame on the LAN that appears to have come from a DHCP server that is not located on the local network. In fact, it appears to have originated from outside the organizations firewall. As a result, the switch drops the DHCP message from that server. Which security feature was enabled on the switch to accomplish this?
DHCP snooping
Which of the following can be used to stop piggybacking that has been occurring at the front entrance where employees should swipe their smart cards to gain entry?
Deploy a mantrap
You have a network using a full physical mesh topology. The link between device A and device B is broken. Which of the following best describes what happens to network communications?
Device A will be able to communicate with all other devices.
On your way into the back entrance of the building at work one morning, a man dressed as a plumber asks you to let him in so he can "fix the restroom." What should you do?
Direct him to the front entrance and instruct him to check in with the receptionist.
Which of the following allows for easy exit of an area in the event of an emergency, but prevents entry? (Select two)
Double-entry door AND Turnstile
A network switch is configured to perform the following checks on its ports. -all ARP requests -each intercepted request -if the packet has a valid Binding -if the packet has an invalid binding What security feature was enabled on the switch to accomplish this?
Dynamic ARP inspection
You are troubleshooting a client connectivity problem on an Ethernet network. The client system has intermittent connectivity to the network. You discover that the UTP patch cable is run 75 feet from the wall outlet, passes through the ceiling and over several florescent light fixtures before reaching the client system. Which of the following may be a cause of the connectivity problem?
EMI interfaace.
You have a cable Internet connection at home. The installer had connected the router near the outside wall of your house with RG-6 cable. You move the cable router a distance of 50 meters using RG-8 cables and special connector adapters. Which condition are you most likely to experience?
Echo.
You are moving a client to a new location within an Ethernet network. Previous to the move, the client system did not have any difficulty accessing the network. During the relocation, you attach a patch cable 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 can still not connect. Which of the following might you suspect as the problem?
Failed patch cable between the client system and the wall jack.
You have just connected four new computer systems 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 network card in the failed system. The client is still unable to access the network. Which of the following might you suspect as the real cause of the problem?
Failed patch cable.
Upon conducting a visual inspection of the server room, you see that a switch displays LED collision 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 receiving network traffic at that time. What is the cause of the network collision?
Faulty network card.
Match the network Access Protection (NAP) component on the left with is description on the right.
Generates a stament of Health (SoH) that reports the client configuration for health requirements. NAP Client Runs the System Health Validator (SHV) NAP Server Is the connection point for clients to the network Enforcement Server (ES) Contain resources accessible to non-compliant computers on the limited-access network. Remediation Server
Which of the following CCTV types would you use in areas with little or no lights?
Infrared
Which of the following controls is an example of a physical access control method?
Locks on doors
Match the port security MAC address type on the left with its description on the right
MAC address manually identified as an allowed address SecureConfigured MAC address that has been learned and allowed by the switch SecureDynamic MAC address that is manually configured or dynamically learned that is saved in the config file SecureSticky
Which of the following tests can be performed by a TDR?
Measure the length of a cable. Identify the location of a fault on a cable.
You want to measure the voltage, amps, and ohms of various devices. Which tool should you use?
Multimeter.
Members off the sales team use laptops to connect to the company network. While traveling, they connect their laptops to the internet through airport and hotel networks. You are concerned that these computers will pick up viruses that could spread to your private network. You would like to implement a solution that prevents the laptops from connecting to your network unless anti-virus software and the latest operating system patches have been installed. Which solution should you use?
NAC
Which of the following best describes the condition where a signal sent on one wire is received on another wire within the same connector?
NEXT.
You are in the process of implementing a Network Access Protection (NAP) infrastructure to increase your networks security. You are currently configuring the remediation network that non-compliant clients will connect to in order to become compliant. the remediation network needs to be isolated from the secure network. Which should you implement to do this?
Network segmentation
You are working with an existing fiber optic installation in your building. You want to know how long each length of cable is that runs through walls. Which tool should you use?
OTDR
Which of the following is NOT an example of a physical barrier access control mechanism?
One time passwords
You want to use CCTV to increase your physical security. You want to be able to remotely control the camera position. Which type of camera should you choose?
PTZ
You manage a network that uses switches. In the lobby of your building are three RJ-45 ports connected to a switch. You want to make sure that visitors cannot plug their computers to the free network jacks and connect to the network. However, employees who plug into those same jacks should be able to connect to the network. What feature should you configure?
Port authentication
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.
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 troubleshooting actions are you most likely to perform first?
Replace the network card in the user's computer.
Which of the following are solutions that address physical security?(Select two)
Require identification and name badges for all employees AND escort visitors at all times
You're responsible for implementing network cabling in a new network installation. The cabling will be installed in a manufacturing environment where there is a great deal of electromagnetic interface (EMI). Which type of cabling would operate best in this environment?
Shielded twisted pair cable. Fiber-optic cable.
You have been asked to document the wiring in the building. You would like to identify the length of each Cat5 cable to verify that it meets Ethernet standards. You need to identify the length of the cables, but most cables run through walls and ceilings, making them difficult to trace. Which tool should you use?
TDR.
CSMA/CD
The media access control method of all Ethernet networks is ___________________.
You are troubleshooting a connectivity problem in which one client system is unable to connect to a server. Both the server and the client system are connected to the same Ethernet network switch. No other users have complained of a problem, and you suspect that faulty network cabling might be to blame. Which of the following troubleshooting steps are you most likely to perform first?
Use a media tester to test the cable between the computer and the network switch.
You have just been hired as a network administrator. A user has just changed offices and needs you to activate the network and telephone communications in his office. However, the wiring at the punch down block is labeled poorly and you are unable to tell which wires go to the user's office. What should you do?
Use a tone generator to locate the correct wiring.
Smart Jack
Users report that the Internet is no longer accessible. You suspect that the line connecting your building to the Internet is not working properly. Which of the following allows the service provider to remotely test the local loop?
Your company is a small start-up that has leased office space in a building shared by other businesses. All businesses share a common network infrastructure. A single switch connects all devices in the building to the router that provides internet access. You would like to make sure that your computers are isolated from computers used by other companies. Which feature should you request to have implemented.
VLAN
1000BaseSX
What Gigabit Ethernet standard uses multimode fiber-optic cabling and supports network segments up to a maximum of 550 meters long?
255.255.0.0 & 169.254.0.0
What is the network address and subnet mask used by APIPA? (Select two.)
Physical star/logical bus & Physical star/logical star
What topology is used with 100BaseTX Fast Ethernet networks? (Select two.)
Type 1A STP or Category 5 UTP
What type of cabling is used with 100BaseTX Fast Ethernet networks?
100BaseFX & 1000BaseLX
Which of the following Ethernet standards uses fiber optic cabling? (Select two.)
169.254.0.1-169.254.255.254
Which of the following IP address ranges is reserved for Automatic Private IP Addressing?
CAT 5 cabling & RJ-45 connectors & The cable length must be less than or equal to 100m
Which of the following are requirements of the 1000BaseT Ethernet standards? (Select three.)
Identify the location of a fault on a cable. & Measure the length of a cable.
Which of the following can be performed by a TDR? (Select two.)
Serial
Which of the following connectors is typically used on one end of a rollover cable?
Bus and Star
Which of the following physical topologies are used with Ethernet networks? (Select two.)
RS-232
Which of the following standards is typically used in a rollover cable?
10GBaseLW
Which of the following standards is used by SONET?
10BaseT & 1000BaseT
Which of the following use the CSMA/CD access method? Select all that apply.
100 meters
With an Ethernet 10BaseT network, the maximum cable length between a computer and the hub is __________.
Specify which server network interface the agent listens on for DHCP messages.
You are configuring the DHCP Relay Agent role service on a Windows server. Which of the following is a required step for the configuration?
Repeater
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.
Attenuation
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 Cat6e cable to connect the wiring closet to the shipping building. Which of the following conditions are you most likely to experience?
An unmanaged switch and CAT5e cabling
You are implementing a SOHO network for a local business. The ISP has already installed and connected a cable modem in the business. The business has four computers that need to communicate with each other and the Internet. The ISP's cable modem has only one RJ-45 port. You need to set up the network with the following in mind: Spend as little money as possible. Do not purchase unnecessary equipment. Computers need to have a gigabit connection to the network. New devices should not require management or configuration
Failed patch cable between the client system and the wall jack
You are moving a client to a new location within an Ethernet network. Previous to the move, the client system did not have difficulty accessing the network. During the relocation, you attach a patch cable from the client system to the wall jack 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 can still not connect. Which of the following might you suspect as the problem?
EMI interference
You are troubleshooting a client connectivity problem on an Ethernet network. The client system has intermittent connectivity to the network. You discover that the UTP patch cable is run 75 feet from the wall outlet, passes through the ceiling and over several florescent light fixtures before reaching the client system. Which of the following may be a cause of the connectivity problem?
Echo
You have a cable Internet connection at home. The installer had connected the router near the outside wall of your house with RG-6 cable. You move the cable router a distance of 50 meters using RG-8 cables and special connector adapters. Which condition are you most likely to experience?
No devices will be able to communicate
You have a network connected using a physical bus topology. One of the cables connecting a workstation to the bus breaks. Which of the following best describes what happens to network connections?
1000BaseCX
You have been tasked with designing a high-speed Ethernet network. Your client's building already has 150-ohm shielded twisted pair (STP) wiring installed. Due to budget constraints, they have asked you to reuse the existing wiring instead of installing new fiber-optic cabling. Which Ethernet standard could you implement in this situation?
10BaseSR &1000BaseSX
You have been tasked with designing an Ethernet network. Your client needs to implement a very high-speed network backbone between campus buildings; some of which are around 300 meters apart. Multimode 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? (Choose two.)
Crosstalk
You have decided to implement Gigabit Ethernet on your network. Each switch port is connected to a single device. Following the installation, you find one device connected to a switch that is only running at 100 Mbps. Which of the following are likely causes?
Rollover
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 tasks. Which type of cable would you most likely use?
Crossover
You have two switches that you need to connect using their uplink ports. The switches do not support auto-MDI
Certifier
You manage a network that uses 1000BaseT Ethernet. You find that one device communicates on the network at only 100 Mbps. Which tool should you use to test the drop cable and the connection to the network?
ip helper-address 172.16.30.1
You need to configure a Cisco RFC 1542 compliant router to forward any received DHCP frames to the appropriate subnet. The address of the remote DHCP server is 172.16.30.1 Which of the following commands would be used to configure the router?
Straight-through
You need to connect a workstation to a switch using a regular port on the switch (not an uplink port). The switch does not support auto-MDI. Which type of cable should you use?
Crossover
You need to transfer data from on laptop to another and would like to use an Ethernet cable. You do not have a hub or a switch. Which type of cable should you use?
Crossover
You want to connect the LAN port on a router to the uplink port on a switch. The switch does not support auto-MDI. What type of cable should you use?
Connect pin 1 to pin 8, pin 2 to pin 7, pin 3 to pin 6 and pin 4 to pin 5
You want to create a rollover cable that has an RJ-45 connector on both ends. How should you connect the wires within connectors?
1000BaseLX & Single mode fiber
You want to implement an Ethernet network at very long distances using fiber optic cables. Which standard and cable type would you choose? (Select two.)
Multimeter
You want to measure the voltage, amps, and ohms of various devices. What tool should you use?
In which of the following situations would you use port security?
You want to restrict the devices that could connect through a switch port.
Single mode fiber & 10BaseLR standards
You would like to implement 10 Gbps Ethernet over a distance of 1 kilometer or greater. Which of the following would be the minimum requirement for the implementation? (Select two.)