Networking 1

The protocol responsible for providing IP addresses to network hosts

ARP

One of the most popular motherboard form factors is the ____.

ATX

A server that collects and stores raw data from field devices and passes data on to other SCADA systems is a(n) _____.

Acquisitions server

11101101 ANDed with 00100110 is

00100100

What is the maximum allowable distance for horizontal cabling, that is the permanent link plus patch cables?

100 meters

Given an IP address of 192.168.1.101 and a subnet mask of 255.255.255.224, what is the network address?

192.168.1.96

A standard network switch operates at layer _____of the OSI model.

2

The two frequencies that most wireless networks use are ____ and _____.

2.4 GHz and 5 GHz

What is the analog bandwidthof a CAT6 cable?

250 MHz

Frequencies used to convey speech over telephone lines fall in the range of _____.

300 Hz to 3.3 kHz

Ideally, stations must remain within _____ of an access point in order to maintain optimal transmission speeds.

300 feet

A TCP or UDP header is added at Layer _____ of the OSI model.

4

An 802.11 frame has ____ address fields.

4

The maximum theoretical throughput of 802.11n is _____.

600 Mbps

The first 802.11 standard to utilize the 5 GHz band was _____.

802.11a

The first Wi-Fi standard to approach gigabit Ethernet capabilities, and operate on the 5 GHz band is _____.

802.11ac

The IEEE standard that specifies how VLAN and trunking information appears in frames.

802.1Q

Select the maximum allowable distance for horizontal wiring for a span that connects a data jack in the work area to a patch panel in the wiring closet:

90 meters

A highly available server has an uptime at a minimum of:

99.99%

Carries out the instructions of a computer program

CPU (central processing unit)

What is the minimum category of UTP cable required in order to support 10 Gigabit Ethernet speeds?

Cat 5e

A _____ is an enclosure made of a conductive material blocks electromagnetic signals, including Wi-Fi.

Faraday cage

What cable type comes in two different modes, single-mode and multi-mode?

Fiber Optic

The number of times that a wave's amplitude cycles from its starting point, through its highest amplitude and its lowest amplitude, and back to its starting point over a fixed period, is known as _____

Frequency

Which option below is an IDS implementation used to provide additional security on a specific network host?

HIDS

What routing protocol criteria is defined as the time it takes to recognize a best path change in the event of a network outage?

convergence time

A _____ cable, used to connect a PC to the console port of a router or switch, reverses all of the wires.

rollover

A _____ connects dissimilar networks and can redirect traffic if the path of first choice is down but a second path is available.

router

n order to allow communication between VLANs for exchange of data, a _____ must be used.

router

n an IPv6 address, the first 64 bits of the address are known as a(n)

routing prefix

The outer-most layer of protective covering of a twisted pair cable is the _____.

sheath

This optical fiber cable type, used for long distance data links, provides the highest throughput for Wide Area Networks.

single-mode fiber

What physical network topology consists of all connected devices connecting to one central device, such as a switch?

star topology

A single switch can manage traffic belonging to several VLANs on a single interface, by configuring which a(n) _____ port on the interface.

trunk

A type of software that is a correction, improvement, or enhancement to a piece of software.

Patch

Progress of waves over time

Phase

The 802.11 standards vary in the _____ of the OSI model

Physical layer

What should you do if a destructive program is running that might be destroying evidence?

Pull the power cable

Which of the following is not a valid wireless network topology?

bus

DDR2 and DDR3 SDRAM have a 240-pin _____.

DIMM

A FQDN-to-IP address resolution protocol.

DNS

What IPv4 header field informs routers the level of precedence (priority) they should apply when processing an incoming packet?

Differentiated Services (DiffServ)

Management protocol for IPv4 that provides hosts with information about network problems and is used for network error reporting, particularly through routers

ICMP

The IPv4 protocol _____ handles multicasting for tasks such as videoconferencing or teleconferencing.

IGMP

The Network layer header identifies sending and receiving hosts by their _________________.

IP Address

The computer that performs the function of a private telephone switch in a VoIP network is referred to as a/an:

IP-PBX

An attack on a wireless network that a hacker can execute with a specially configured transmitter whereby the attacker creates a high volume of illegitimate traffic and overwhelms the wireless network is called:

Jamming

Ethernet is used at what layer of the OSI model?

Layer 2

What addresses are used as source and destination addresses in an Ethernet frame header?

MAC addresses

The 802.11 wireless innovation that allows for the use of multiple antennas on an access point that can issue a signal to one or more receivers is _____.

MIMO

What type of cross-talk occurs between wire pairs of a UTP cable near the source of a signal?

Near End Cross-Talk (NEXT)

At what layer of the OSI model do the IP, ICMP, and ARP protocols operate?

Network

Internet protocol standard that specifies a way for programs to manage the real-time transmission of multimedia data over either unicast or multicast network services.

Real-Time Transport Protocol (RTP)

distinct network of storage devices that communicate directly with eachother

Storage Area Networks(SAN)

IP is a best effort protocol and relies on _____ to guarantee delivery of data.

TCP

In an IPv4 header, the _____ field indicates how many routers a packet may pass through on a network.

TTL

The TCP _____ is performed before TCP transmits the actual data.

Three-way handshake

the last part of an FQDN IS

Top-level Domain(TLD)

The protocol data unit called a "segment" is found at what layer of the OSI model?

Transport layer

Ethernet is _____ technology.

baseband

The report of the network's current state of operation is called a/an:

baseline

Since cable TV and cable Internet can share the same coaxial cable, they are considered to be what type of technology?

broadband

_____ is the temporary storage of frequently used files that would otherwise be obtained from an external source.

caching

Static electricity can cause upset failure and ______ failure in electronic components.

catastrophic failure

The 802.11 wireless innovation that allows for the combination of two adjacent 20MHz frequency bands to create one 40MHz frequency band _____.

channel bonding

The process of adding a header to the data inherited from the layer above is called _______?

encapsulation

What is the name for the protocol data unit (PDU) of the Data Link layer?

frame

Which method of transmission allows signals to travel in both directions over a medium at the same time?

full-duplex

All 802.11 standards use _____ signaling, meaning a wireless station can transmit or receive, but cannot do both simultaneously.

half-duplex

A _____ site is a recovery area where pre-configured computers and connectivity devices necessary to rebuild your network exist.

hot site

A VoIP call uses _____ transmission between two IP phones. Question options:

multicast

The _____ management option on a switch can provide on-site or remote access when the network is down or in cases of connectivity failures on the network.

out-of-band