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Network+ 007 > Infrastructure > Flashcards

Infrastructure Flashcards

1
Q

Your company has just purchased a new building down the street for its executive suites. You have been asked to select the proper antennas to establish a wireless connection between the two buildings.

A

Pick a 15 dB Right Parabolic for AP4 and a 15 dB left Parabolic for AP5

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2
Q

What type of cable would you use to connect a computer to a switch?

A

Straight-through

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3
Q

Your network relies on the use of ATM cells. At which layer of the OSI model do ATM cells operate?

A

Data Link

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4
Q

When installing a network cable with multiple strands, a network technician pulled the cable past a sharp edge and exposed the copper conductor on several of the wire strands. These exposed wires come into contact with each other forming an electrical connection. Which of the following conditions was created?

A

Short

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5
Q

A network technician works with a junior technician when the network technician is called away for a more urgent issue. The junior technician orders an SC 80/125 fiber cable instead of an ST 80/125. Which of the following will MOST likely be an issue with the new cable?

A

Connector mismatch

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6
Q

A network technician needs to connect two switches. The technician needs a link between them that is capable of handling 10 Gbps of throughput. Which of the following media would BEST meet this requirement?

A

Fiber optic cable

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7
Q

A company is having a new T1 line installed. Which of the following does this connection MOST likely terminate to?

A

MDF

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8
Q

Which of the following network infrastructure implementations would be used to connect two remote sales machines back to the main campus for all of their data and voice network traffic?

A

Single-mode fiber

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9
Q

The accounting department has been relocated to a new area of the building, which is more than 70 meters away from the closest IDF. To comply with an SLA that requires that 10Gb speeds be provided, what type of media should be installed?

A

CAT 6a

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10
Q

What would be used in an IP-based video conferencing deployment

A

RS-232

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11
Q

A technician is called to investigate a connectivity issue to a remote office connected by fiber optic cable. Using a light meter, it is determined that the dB loss is excessive. The installation has been working for several years. The switch was recently moved to the other side of the room, and a new patch cable was installed. Which of the following is most likely the reason for this problem?

A

Dirty connectors

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12
Q

An administrator is upgrading the switches in the server room to support 10 Gbps of throughput. The switch will need to take advantage of the existing CAT6a lines that run to each server. Which of the following Ethernet standards should be used to meet this requirement?

A

10GBaseT

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13
Q

Which of the following is a logical host on the network where unauthorized users are placed in which they still believe they’re on the production network?

A

Honeypot

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14
Q

You have been asked to install a media converter that connects a newly installed multimode cable to the existing CAT5e infrastructure. Which type of media converter should you use?

A

Fiber to Ethernet

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15
Q

What Ethernet feature will allow increased FCoE network throughput as long as all network devices recognize their specific size?

A

Jumbo frame

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16
Q

(This is a simulated Performance-Based Question. On the real exam, you might be asked to drag and drop the right colors to the right pins on a connector.)

What is the correct color scheme for Pin 1 to Pin 8 for a T-568B connector?

A

white/orange, orange, white/green, blue, white/blue, green, white/brown, brown

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17
Q

You are working as a wireless networking technician and running a wireless controller to aid in network administration. Your supervisor has requested that you implement a centralized authentication service. Which of the following devices should you install and configure if you want to decrease the amount of time spent administering the network while still providing a centralized authentication service for your users?

A

RADIUS server

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18
Q

Which device actively defends the network by detecting threats and shutting down ports or changing configurations to prevent attacks?

A

IPS

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19
Q

A network administrator needs to install a centrally located firewall that needs to block specific incoming and outgoing IP addresses without denying legitimate return traffic. Which type of firewall should the administrator install?

A

A stateful network-based firewall

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20
Q

A client has combined the voice-data circuit from a provider and gets a maximum download and upload speeds of 2.0Mbps. Which type of service is MOST likely being used by the client?

A

E1

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21
Q

What allows a telecommunication company to test the circuits of customers remotely?

A

Smart Jack

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22
Q

You have installed and configured a new wireless router. The clients and hosts can ping each other. The WAN connection is 10Gbp/s. The wired clients have fast connections, but the wireless clients are slow to ping and browse the Internet. Which of the following is MOST likely the cause of the slow speeds experienced by the wireless clients?

A

An access point experiencing RFI from fluorescent light bulbs

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23
Q

Which of the following WAN technologies would MOST likely be used to connect several remote branches that have no fiber or satellite connections?

A

POTS

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24
Q

Which of the following network devices would be considered a perimeter device and installed at the outermost part of the network?

A

Firewall

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25
Q

Which communication technology would MOST likely be used to increase bandwidth over an existing fiber-optic network by combining multiple signals at different wavelengths?

A

DWDM

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26
Q

While implementing wireless access points into the network, one building has connectivity issues due to light fixtures being replaced in the ceiling, while all other buildings’ connectivity is performing as expected. Which of the following should be changed on the access point for the building with connection issues?

A

Antenna

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27
Q

You are creating a wireless link between two buildings in an office park utilizing the 802.11ac standard. The antenna chosen must have a small physical footprint and be lightweight as it will be mounted outside the building. Which type of antenna should you install?

A

Patch

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28
Q

Which of the following is MOST likely to use an RJ-11 connector to connect a computer to an ISP using a POTS line?

A

Analog modem

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29
Q

Which of the following technologies deliver multiple voice calls over a copper wire if you have an ISDN or T-1 connection?

A

Time-division multiplexing

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30
Q

A technician needs to ensure wireless coverage in the green space near the center of the college campus. The antenna is being installed in the middle of the field on a pole. Which type of antenna should be installed to ensure maximum coverage?

A

Omnidirectional

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31
Q

Which of the following needs to be configured to allow jumbo frames on a network?

A

MTU

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32
Q

You have just moved into a new apartment and need to get internet service installed. Your landlord has stated that you cannot drill any holes to install new cables into the apartment. Luckily, your apartment already has cable TV installed. Which of the following technologies should you utilize to get your internet installed in your apartment?

A

DOCSIS modem

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33
Q

An administrator has a virtualization environment that includes a vSAN and iSCSI switching. Which of the following actions could the administrator perform to improve data transfers’ performance over the iSCSI switches?

A

The administrator should set the MTU to 9000 on each of the participants in the vSAN

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34
Q

Which of the following connector types is used to terminate DS3 connections in a telecommunications facility?

A

BNC

35
Q

Dion Training is trying to connect two geographically dispersed offices using a VPN connection. You have been asked to configure their networks to allow VPN traffic into the network. Which device should you configure FIRST?

A

Firewall

36
Q

Dion Training has created a guest wireless network for students to use during class. This guest network is separated from the corporate network for security. Which of the following should be implemented to require the least amount of configuration for a student to access the Internet over the guest network?

A

Enable SSID broadcast for the guest wireless network

37
Q

Your company wants to develop a voice solution to provide 23 simultaneous connections using VoIP. Which of the following technologies could BEST provide this capability?

A

T1

38
Q

An administrator would like to test out an open-source phone system before investing in hardware and phones. Which of the following should the administrator do to BEST test the software?

A

Create a virtual PBX and connect it to SIP phone applications

39
Q

A technician has punched down only the middle two pins (pins 4 and 5) on an Ethernet patch panel. Which of the following has the technician cabled this port to be used with?

A

POTS

40
Q

An administrator notices an unused cable behind a cabinet that is terminated with a DB-9 connector. What protocol was MOST likely used on this cable?

A

RS-232

41
Q

Which type of equipment should be used for telecommunications equipment and have an open design?

A

2/4 post racks

42
Q

You are configuring a new machine with a hypervisor and several operating systems hosted within it to develop some new applications. You want to ensure that the hypervisor’s various virtual machines can communicate with each other over a network. Still, you don’t want their network traffic to leave the hypervisor itself. What is the BEST solution to meet these requirements?

A

Install and configure a virtual switch

43
Q

Which network element enables unified communication devices to connect to and traverse traffic onto the PSTN?

A

UC gateway

44
Q

While installing new network equipment, a network administrator wants to add infrastructure to keep the cables organized in the environment. The administrator also needs cables to be easily removed or added due to the constantly changing environment. Which of the following should be added to the network’s cable distribution plant to achieve this goal?

A

Ladder trays

45
Q

You have been assigned to assist with deploying a new web-based application to your company’s intranet. After installing the application, it was identified that the database server is becoming overloaded by the number of requests that the users create. The team lead has proposed adding a device between the web server and the database server to alleviate the issue. Which of the following is being implemented by adding this new device?

A

Implement load balancing and provide high availability

46
Q

You have been asked to run a cable between a drop ceiling and a standard ceiling and ensure it meets your local government’s fire safety requirements. The cable will be used to support a 10GBaseT network connection for up to 100 meters. Which of the following cables should you use to meet these requirements?

A

Plenum Cat 6a

47
Q

You are working as part of a network installation team. Your team has been asked to install Cat 5e cabling to some new offices on the building’s second floor. Currently, the office only has one network closet, which is located on the first floor. Your team spent the morning running 48 new CAT 5e cables from a patch panel in the networking closet on the first floor to a new networking closet you are outfitting on the second floor. Your team terminated these cables in a new patch panel in the 2nd-floor closet. You measured the distance from the switch in the 1st-floor closet to the new 2nd-floor patch panel and determined it was 80 meters. The team then ran cables from this patch panel to each of the new offices. Some of the offices are working properly, but others are not. You suspect that some of the cable runs are exceeding the maximum length allowed by Cat 5e cabling. What is the BEST solution to this problem?

A

Install a switch in the second-floor networking closet to increase the signal

48
Q

(This is a simulated Performance-Based Question.) What is the correct color scheme for Pin 1 to Pin 8 for a T-568A connector?

A

white/green, green, orange/white, blue, white/blue, orange, white/brown, brown

49
Q

A technician is troubleshooting a newly-installed WAP that is sporadically dropping connections to devices on the network. Which of the following should the technician check FIRST during troubleshooting?

A

WAP placement

50
Q

Which of the following devices does a CSU/DSU connect?

A

A T1 line to a network router

51
Q

What type of cable would you use to connect to a console port?

A

Rollover

52
Q

Your supervisor has asked you to run a Cat 5e cable between two network switches in the server room. Which type of connector should be used with a Cat 5e cable?

A

RJ-45

53
Q

Which of the following WAN connection types might an Amplitude Modulation (AM) radio station have a detrimental effect on and cause interference?

A

DOCSIS

54
Q

Which type of cable uses an F-connector?

A

RG-6

55
Q

You have configured your network into multiple segments by creating multiple broadcast domains. Which of the following devices should you use to allow the different network segments to communicate with each other?

A

Router

56
Q

Which WAN technology relies on virtual circuits and point-to-multipoint connections?

A

Frame relay

57
Q

Which of the following describes a design where traffic is shared between multiple network servers to provide greater throughput and reliability?

A

Load balancing

58
Q

An administrator has a physical server with a single NIC. The administrator intends to deploy two virtual machines onto a single physical server. Each virtual machine needs two NICs, one that connects to the network, and a second is a server to server heartbeat connection between the two virtual machines. After deploying the virtual machines, which of the following should the administrator do to meet the requirements?

A

The administrator should create a virtual switch to bridge all of the connections to the network; the virtual heartbeat NICs should be set to addresses in an unused range

59
Q

A network administrator wants to separate web servers on the network logically. Which of the following network device will need to be configured?

A

Switch

60
Q

A network technician has been asked to make the connections necessary to add video transported via fiber optics to the LAN within a building. There will be one fiber connector for the Tx port and another connector for the Rx port. Which of the following is the MOST common connector used on the switch to connect the media converter?

A

ST

61
Q

Which media type would employ the DOCSIS standard in a residential Internet installation?

A

Cable

62
Q

A network engineer is designing a wireless network that uses multiple access points for complete coverage. Which of the following channel selections would result in the LEAST amount of interference between each access point?

A

Adjacent access points should be assigned channels 1, 6, and 11 with a 20MHz channel width

63
Q

You are installing a network for a new law firm in your area. They have stated that they must have a guaranteed throughput rate on their Internet connection. Based on this requirement, what type of WAN connection should you recommend?

A

T-1

64
Q

A network administrator installs and configures one distribution and five access switches in a new building. Which of the following is the BEST physical location for the equipment?

A

The distribution switch in the MDF and the access switches in the IDF

65
Q

Which parameter must be adjusted to enable a jumbo frame on a network device?

A

MTU

66
Q

Max is a network technician who just terminated the ends on a new copper cable used between two legacy switches. When he connects the two switches using the cable, they fail to establish a connection. What is MOST likely the issue?

A

The cable is a straight-through cable

67
Q

An organization wants to improve its ability to detect the infiltration of servers in a DMZ. IPS/IDS solutions are currently located on edge between DMZ and Untrust, and DMZ and Trust. Which of the following could increase visibility inside the DMZ?

A

Layer 7 firewall

68
Q

Your office is located in a small office park, and you are installing a new wireless network access point for your employees. The companies in the adjacent offices are using Wireless B/G/N routers in the 2.4 GHz spectrum. Your security system uses the 5 GHz spectrum, so you have purchased a 2.4 GHz wireless access point to ensure you don’t interfere with the security system. To maximize the distance between channels, which set of channels should you configure your WAP to use?

A

1, 6, 11

69
Q

What is true concerning jumbo frames?

A

They are commonly used on a SAN

70
Q

You are installing a new LAN in a building your company just purchased. The building is older, but your company has decided to install a brand new Cat6a network in it before moving in. You are trying to determine whether to purchase plenum or PVC cabling. Which environmental conditions should be considered before making the purchase?

A

Ceiling air flow condition

71
Q

You work for a small company that wants to add a shared drive to their network. They are looking for a simple solution that will easily integrate into the existing network, be easy to configure, and share files with all network clients over TCP/IP. Which of the following is the BEST recommended storage solution for this network?

A

NAS

72
Q

A company is setting up a brand new server room and would like to keep the cabling infrastructure out of sight but still accessible to the network administrators. Infrastructure cost is not an issue. Which of the following should be installed to meet the requirements?

A

Raised floor

73
Q

Which of the following is used to connect Cat 5e or above networks in an MDF or IDF?

A

110 block

74
Q

You have been asked to connect a laptop directly to a router to gain access to the internet. Unfortunately, this router is old and doesn’t support MDIX on its ports. What type of cable should you use to connect the computer to the router?

A

Crossover

75
Q

Which type of antenna broadcasts an RF signal in a specific direction with a narrow path?

A

Unidirectional

76
Q

Various hypervisor guests are configured to use different VLANs in the same virtualization environment through what device?

A

Virtual switch

77
Q

After upgrading a fiber link from 1Gbps, a network technician ran a speed test of the link. The test shows the link is not operating at full speed, and connectivity is intermittent. The two buildings are 1,476ft (450m) apart and are connected using CM4 fiber and 10G SR SFPs. The fiber runs through the electrical and boiler rooms of each building. Which of the following is the MOST likely cause of the connectivity issues?

A

The wrong SFPs are being used

78
Q

What network device uses ACLs to prevent unauthorized access into company systems?

A

Firewall

79
Q

Which storage network technology utilizes file-level storage to function properly?

A

NAS

80
Q

A network technician is selecting the best way to protect a branch office from as many different threats from the Internet as possible using a single device. Which of the following should meet these requirements?

A

Configure a firewall with UTM

81
Q

The network install is failing redundancy testing at the MDF. The traffic being transported is a mixture of multicast and unicast signals. Which of the following devices would BEST handle the rerouting caused by the disruption of service?

A

Layer 3 switch

82
Q

You have been asked to troubleshoot a router which uses label-switching and label-edge routers to forward traffic. Which of the following types of protocols should you be familiar with to troubleshoot this device?

A

MPLS

83
Q

Which protocol is used to encapsulate other network layer protocols such as multicast and IPX over WAN connections?

A

GRE

Network+ 007 (6 decks)

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