Network + Practice Test 17

The IEEE 802.11g standard is backwards compatible with:

802.11b

IEEE 802.11n offers backward compatibility with which of the following standards? (Select all that apply)

802.11g, 802.11b, 802.11a

Which of the following can be the source of RFI and cause disruptions in wireless network connectivity? (Select all that apply)

Cordless phones, Baby monitors, Microwave ovens, Bluetooth devices

In structured cabling, the interference between signals sent over adjacent wires is commonly referred to as:

Cross-talk

Shielded Twisted-Pair (STP) cabling reduces what kind of interference? (Select all that apply)

Cross-talk, EMI

Which of the server types listed below would be used for troubleshooting network-wide routing problems?

LG server

A network service provider site set up in order to allow remote read-only access to routers operating on the provider's network is called:

Looking glass site

EMI shielding protects the transferred data signals from: (Select all that apply)

Outside interference, Eavesdropping

A metric that compares the amount of usable data and the background noise that is being sent over a transmission channel is known as:

SNR

Which Access Point (AP) architecture is the most common in home or small office deployments?

Thick AP

A type of architecture in which most of the network configuration settings of an Access Point (AP) are set and managed with the use of a central switch or controller is called:

Thin AP

Which of the following tools would be used for locating a cable in a cabling bundle or tracing individual wires in a cable?

Toner and probe kit

The term "Evil twin" refers to a rogue Wireless Access Point (WAP) set up for the purpose of eavesdropping or stealing sensitive user data. Evil twin replaces the legitimate access point and by advertising its own presence with the same Service Set Identifier (SSID, a.k.a. network name) appears as a legitimate access point to connecting hosts.

True

The term "Thick AP" refers to a stand-alone Access Point (AP) device type offering network configuration settings that can be managed through a User Interface (UI) after logging in to the device.

True

Which of the following tools would be of help in troubleshooting signal loss and low wireless network signal coverage? (Select all that apply)

WAP power level controls, Heat map

The environmental factors that may impede the propagation of wireless signal include: (Select all that apply)

Window film, Concrete walls, Metal studs

A Linux command-line utility for displaying intermediary points (routers) the IPv4 packet is passed through on its way to another network node is known as:

traceroute

A network command-line command in Linux that tracks and displays the route taken by IPv6 packets on their way to another network node is called: (Select 2 answers)

traceroute6, traceroute -6

Which of the following commands in MS Windows displays the route taken by IPv6 packets on their way to another host?

tracert -6

The 2.401 - 2.473 GHz frequency range is used for allocating 11 channels, each taking up a 22-MHz portion of the available spectrum. Which of the channel choices listed below allow for setting up three Wireless Access Points (WAPs) that would operate on non-overlapping channels? (Select 3 answers)

1 , 6, 11

Setting up a wireless network to operate on a non-overlapping channel allows multiple networks to coexist in the same area without causing interference.

True

Which of the following answers lists a Windows command-line utility designed to be of help in troubleshooting NetBIOS name resolution problems?

nbtstat

Which of the following tools allows for obtaining domain name to IP address mapping information?

nslookup

Which of the network command-line utilities in MS Windows combines the features of ping and tracert?

pathping